The Complete UK Radio Spectrum (0 Hz to 30 EHz)

Find all National Usage Frequencies in here used all over The UK

Re: The Complete UK Radio Spectrum (0 Hz to 30 EHz)

Postby M3TSY » Wed Nov 21, 2012 11:51 pm

85 MHz

85= ... Private Business Radio, to 87.5=

PBR listed so that you can avoid tuning in by accident.
(same info can be found on Radiocomms Agency site anyway)

Was the main place to find Water co.s, councils, AA/RAC, forestry, customs, taxis etc.

12.5kHz channels.
Pre WWII VHF AM was in 200kHz channels, 100kHz in 1947, 50kHz late 40s, 25kHz 1956-1960, 12.5kHz 1969
- first Pye demonstration of 12.5kHz in 1957. Initial Pye gear 77-83 & 94-100 MHz.
85.1375-85.2 ex GPO/BT

Lxxx = (freq - 85) / 0.0125 freq = (Lnumber x 0.0125) + 85

85.0125.PBR, to 86.2875 (split -13.5: 71.5125-72.7875)
85.0125 ch L001
85.875 STH (:72.375) or either, singly Also used for demos and parking
86.2875 ch L103

86.3....PBR single, to 86.7
86.3125 Land SAR
86.325 Land SAR, secondary, some areas
86.3375 Simple UK Light (was UK General), to 86.375 (4 ch)
86.675 JFMG, Talkback (12.5kHz) Wales and west.

86.4625 PBR, to 86.7 (split -8.7125: 77.75 - 77.9875) new plan

86.7125.PBR, to 87.4875 (split -10: 76.7125-77.4875) no longer extends to 87.9875 (or starts from 86.9625)
86.8125.JFMG, to 86.8375 - wide area duplex Talkback (12.5kHz) (+airborne)

The 86.7= to 86.95= section used to be used for 10 x 25kHz links, same -10 split.

87.34.. Eurosignal paging, to 87.415 (4 x 25kHz channels A-D) heard in UK from Europe. info.
Used to be a constant AM tone with pips and doodle-doo noises, as featured in the song
Professionnels by Air (Premiers Symptomes), and could be heard on tuners at 87.5
Changed in March 1998 to bursts of FM data. French channel is 87.39 (C)

87.4875 L199 (highest freq. Low-Band channel)
87.49375= boundary (above 87.4875 by 6.25 kHz - half a 12.5 kHz channel)


--87.5=------------------------
Band II - FM Broadcasting (100 kHz channels) 87.6-107.9 RDS Field Strength
Independent Radio managed by the Radio Authority.
See the British DX Club's Lists. Tuners. SBS. FM DX.

1937 : High HF USA 'Apex' wide-bandwidth AM stations at 25 to 44 MHz, 117 MHz
1939 : Band I Pioneering USA FM, from around 40 MHz up to 49.9 (100kHz steps) 42.1=ch21 49.9=ch99
1945 : Band II FCC allocates 88-108 for FM, June 27th. ch 201 88.1 to ch 300 107.9 (0.2MHz steps)
1946 : Band II FM moves from Band I in the USA - allocations in Sept 1945, moves complete by end of 1948

1955 : 88-94.6 3 BBC Programmes start, from Wrotham, Kent (Home Service, Light & 3rd Prog.)
1961 : Stockholm conference plans 87.5-100. Proposals for Bands I to V by Research Department
1962 : Aug 28 : Zenith-GE stereophonic system tests on the Wrotham transmitter (3rd Prog.)
1967 : 94.6-97.6 sub band opened (was mobile services). BBC services renamed R2,R3,R4
1969 : 105-108 JRC start to use (mobile services) - and other PMR (split: 138-141)
1970 : BBC local radio introduced in London in 1970, in the new sub band
1973 : Independent radio follows, Capital and LBC (later News Direct) same sub band
1979 : 100-108 allocated (WARC) but not all cleared for some time
1981 : Mixed polarisation introduced (Wrotham)
1984 : 104-108 Broadcasting is now the primary user
1985 : Sept 85 to Jul 87 : use of some (relatively unusual) 50kHz steps ends (i.e. 95.85)
1980s: 87.5-88 (end of) : end of use for base PMR (split -10: 77.5-77.9875)
1987 : August: UK tests of RDS
1988 : October: RDS launched at Earls Court Radio Show
1989 : 97-102 (end of) : permit ends for use by 999 Services AM RT base, 25kHz ch (split: 80-85)
1990s: 105-108 (early) : JRC mobile services complete move to 139/148MHz
1995 : 104-108 permit ends to use the sub band for PMR
2006 : Dec 8 : 'micro transmitters' legalised (50nW max ERP = -43dBm, 70dB less than PMR446!)

"BBC sub-bands employ a "standard (2.2/5.2 MHz) spacing."


87.6... RSLs (87.7 primary) more
88.0=
88.1... BBC Radio 2 - used to share with R1 after 10pm, Saturday afternoons and Sunday evenings from 5pm
90.2... BBC Radio 3
92.4... BBC Radio 4, BBC Wales/Scotland
94.6... BBC Local, Radio 4, ILR (lower local sub-band, to 97.6)
96.1... ILR, some BBC
97.7... BBC Radio 1 (sub band used from 1988)
99.8... INR1 - Classic FM (+RDS DCI DGPS - Focus FM), ILR. Classic launched 7.sep.1992
102.0... ILR (upper local sub-band, to 108=)
103.5... BBC Local, Radio 4, ILR
105.0... ILR, regional, RSLs
107.0... RSLs, Small-scale and other low power broadcasting, to 107.9

The FM modulation has its own spectrum -
0-15kHz : Mono audio (L+R)
19kHz : "Pilot tone" to indicate if stereo present
23-53kHz : Stereo "difference" signal (L-R) consisting of lower and upper
sidebands resulting from balanced AM modulation of a 38kHz carrier
(phase locked to the 19kHz tone at half the freq.)
57kHz : (3 times 19kHz) RDS data carrier (data rate of 1187.5 bps) 4.8kHz b.width
60-99kHz : Subcarriers used in the USA for SCA Subsidiary Communications Authorization (Aus: ACS)
typically FM on 67kHz and 92kHz (14kHz bandwidth) (sometimes 41,76,78.67 kHz)
CCIR recommends only up to 76kHz


Some history above was based on Overview of UK VHF radio planning. Would-be pirates should read this!
...although : "the current standards work well in practice, but they do not appear to reflect the way in
which the majority of listening is done, and may be unnecessarily conservative." :o)
Also, receiver standards are based upon current equipment, which may be very poor. I say to heck with that,
assume decent equipment and let the cheapskates upgrade!

Wenvoe R1/2 was 89.95, R3 92.125 . R4SW Oxford was 95.85;
"All 50kHz offsets in Europe were removed by a Geneva Conference 7.12.1984 which reorganised the FM bands
throughout Europe. The new frequencies were implemented about 2 or three years later. That was when BBC
and ILR locals moved into their separate FM sub-bands and many UK transmitters were changed from horizontal
to mixed polarisation. Note that almost all of the high power FM transmissions in the UK are actually on
200 kHz spacings (odd integers). Lower power ones use the 100 kHz offsets."

Near 107.8 was used for Local Authority Alarms until the end of 1995, now on 160.55-160.575
and 168.2875 & 168.9375. Some old lists show freqs as 107.79375, 107.80625, 107.81875

Long distance reception is more common via the troposphere here, rather than the ionosphere...
i.e a "lift" rather than "sporadic-E". "Tropo" tends to improve the higher the frequency, and lower
frequencies are not affected; whereas ionospheric "skip" builds up from HF, maybe reaching as high as
150 MHz rarely - but leaves higher bands unaffected.

DSI2 recommends that by 2020 when DAB is established, the band may be reduced to 97.5-108 for local and
community broadcasting only.

Polish DAB uses 105.008MHz


-108=--------------------------
Aero. Navigation

108.05.. ILS/VOR/ATIS, to 117.95 (50 kHz channels)
ILS within 108-112

There was a ham band at 112MHz (USA Amateur history), 2.5 metres, from 1938 to 1945

mil comms are sometimes reported here, usually 117-118. & Illegal WFM bugs, sometimes.

-117.975=----------------------

118 Air Band
Aero. Mobile "Civil Air Band" - NATS National Air Traffic Services, Volmet
See Javiation's list. RTCA. ICAO. Reporting Points
Used by the military too, of course.

118.0... AM comms, to 136.99166 (2280 x 8.33 kHz channels) (USA Plan 2001-2010)
118-132 from 1947, extended to 117.975-136 in 1959 (most private ch WERE at the top, 129.7-132)
The use of 136 - 137 dates from 1990, shared with satellite services until 1.1.2002

National (or wide area) channels :

118.675 Paragliding (below 5000ft)
119.7 'Civ / Mil Guard' (on Jeppesen charts)
121.5 Guard, Distress, EPIRBs (100mW) (?120.875 Distress, discrete?) satellite monitoring ceased 1.feb.2009
121.6 airfield Fire Services
121.65 ELT training (121.775 & others : US equipment)
121.7... common Ground frequencies, to 121.95
122.1 'Mil TWR'
122.475 Balloons primary, and Hangliders (1984)
122.95 Helicopter Common 'blind calls when landing/departing uncontrolled sites'
123.1 SAR
123.45 Air-Air (now allowed since 17.jun.2010)
123.5 'Air / Air (aerodromes without ATS/AFIS)'
129.825 Microlights
129.9 Gliders/Balloons - ground-ground and recovery only, Parachute aircraft-to-DZ
129.975 Gliders - local airfield air-ground only (within 10nm and below 3000 ft). (BGA, 1986)
130.0 'Air / Air (aerodromes without ATS/AFIS) - mountain airfields'
130.1 Gliders - "Primary: Competition start/finish lines;local flying Secondary: Training"
130.125 Gliders - "Primary: Training;cross-country locations Secondary: Local flying;competition lines"
130.4 Gliders - "cloud flying and relaying cross-country location messages only"
130.525 Parachute-DZ comms
131.725 ACARS Packet data (Europe & USA) & 131.525 [Hear it here!]
132.0... 8.33 sub-band, to 134.8 - for over FL245 (24,500ft/7.5km) - FL195 (6km) France (waived at present)
Maastricht 132.635, 136.465 Brest 132.765, 133.635, 132.415, 132.510
France has some 8.33 channels outside of this range (noted in 2002 at least)
135.375 London VOLMET (main)
135.475 SAFETYCOM (from Nov 2004)
136.9... data only, to 136.975

Private channels (mostly shared) for Airline "company ops", Servisair and other organisations
such as coastguards, air ambulances etc :
122.05, 122.3-122.375, 122.95, 123.65, 129.025,
129.7-130.75 (not all ch), 131.075,
131.375-131.975 (many 8.33 now), 132.65 (HMCG-SAR), 134.5, 136.65, 136.675
136.8-136.875

Unofficial air-air chat is sometimes heard on the first channel 118.0 and the "old" last 135.975
and "new" last 136.975 ... 125.125 is also sometimes used... or 122.22... it has to be a "neat" number!

CAA short-term : (displays, events etc.)
121.175, 130.500 Air/Gnd
130.675, 132.900 App/Twr
121.925 Gnd

25kHz channels: "Climax" offsets may be used when two or more transmitters use the same ch. at once.
2 sites: +5 & -5 kHz
3 sites: 1 site on nominal, others +7.5 & -7.5 kHz
4 sites: +7.5, -7.5, +2.5 & -2.5 kHz

In 1999 the 760 x 25kHz channels were each split into 3, with a new 8.33kHz spacing (more/N)
(2000 in the UK). Given that the first 25kHz channel is 118.0 and the band boundary is therefore
117.975, why wasn't the new first 8.33 channel 117.983? Radios still start at 118.0 :)

UPDATE - Current (2012) situation:
Effective 24 Nov 2005, new procedures requiring all VHF voice communication channels to be indicated by the
use of all 6 digits of 8.33 channels, and also for 25 kHz channels (say 118.025, 118.050, 118.075 etc) -
EXCEPT 25kHz channels ending in two zeros (say 118.0, 118.1, etc)
- 118.005 specified as "ONE ONE EIGHT DECIMAL ZERO ZERO FIVE" (8.33)
- 118.050 specified as "ONE ONE EIGHT DECIMAL ZERO FIVE ZERO" (25)
- 118.1 specified as "ONE ONE EIGHT DECIMAL ONE" (25 channel - in 8.33 mode it would be 118.105)
The use of the term "CHANNEL" for 8.33 kHz channels is discontinued.

Original plans for on-air use :
100kHz spacing (orig-1949?) - 1 decimal place 118.0, 118.1 etc. on air : still 1 decimal (25 mode)
50kHz spacing (1954) - 2 decimals, new 118.05, 118.15 etc. on air : was 2 decimals
25kHz spacing (1974) - 3 decimals, new 118.025, 118.075 etc. on air : was 2 decimals
8.33 spacing (1999/2000) - infinite decimals! new 118.00833. etc on air : was 3 decimal 'NAME'

The newer 25kHz spaced channels were (pre 2005) rounded to only 2 decimal places when referred to,
i.e. 118.02 or 118.07 because the second decimal is only ever 2 or 7 and so there was no ambiguity.

When saying an 8.33 channel on air, the word "channel" followed by a rounded 3 decimal place Channel Name
SHOULD BE used (pre 2005) (although sometimes it is just treated as a normal frequency, with trailing zeros
ommitted, such as One Three Two Decimal Two Four) :

--NAME-- -step- -MHz--- --rounded--
(1xx.x) 25 1xx.x00 \
"1xx.x05" 8.33 1xx.x00 / up 5
"1xx.x10" 8.33 1xx.x08333 NEW up
"1xx.x15" 8.33 1xx.x16667 NEW down
"1xx.x2" 25 1xx.x25 \ down 5
"1xx.x30" 8.33 1xx.x25 / up 5
"1xx.x35" 8.33 1xx.x33333 NEW up
"1xx.x40" 8.33 1xx.x41667 NEW down
(1xx.x5) 25 1xx.x50 \
"1xx.x55" 8.33 1xx.x50 / up 5
"1xx.x60" 8.33 1xx.x58333 NEW up
"1xx.x65" 8.33 1xx.x66667 NEW down
"1xx.x7" 25 1xx.x75 \ down 5
"1xx.x80" 8.33 1xx.x75 / up 5
"1xx.x85" 8.33 1xx.x83333 NEW up
"1xx.x90" 8.33 1xx.x91667 NEW down

Any 8.33 NAME just 5kHz higher than a normal 25kHz channel is the same freq.,
otherwise tune to the NAMED freq. in 5kHz steps and you'll only be 1.666kHz off...
... then :
If a NEW channel name is 10kHz ABOVE an old 25kHz channel, tune DOWN 1.666
If a NEW channel name is 10kHz BELOW an old 25kHz channel, tune UP 1.666


"..introduction of Mandatory Carriage of 8.33 kHz .. capable radio equipment was 7th October 1999"
- AUSTRIA BELGIUM FRANCE GERMANY LUXEMBOURG NETHERLANDS SWITZERLAND

"22 States (incl. UK) will start implementating 8.33 kHz .. from the 31 October 2002"

However, don't panic about needing new equipment, 8.33 is only used in a small segment of the band,
and not for local traffic. You'll be able to enter frequencies using 5 or 10kHz steps and not be more than
1.66 kHz out, and likewise you'll still be able to search in 10kHz steps and that will be faster then 8.33!
It's no more likely than now that two adjacent channels will be strongly in use at any one location.
In any case, the great thing about airband as far as searching goes, is that the controllers TELL the pilots
what frequency to go to next - so finding any new channels isn't really that hard!

The ITU's VDL-3, "VHF Data Link - Mode 3", solution is for digital TDMA on existing 25kHz channels.
The USA FCC adopted this as NexCom (not yet in use). VDL-3 retains AM capability, but also uses 8-phase
shift keying, giving 4 time slots within 120ms frames, providing for a mix of digital voice and data.
Coverage of 112-117.975 is included in the spec.s - and they haven't decided about the UHF band yet.


Due to Earth curvature, an aircraft :
at 1,000ft is level with you when it is 62.3km away (38.7 miles)
at 3,000ft / 914m when it is 107.9km away (67.0 miles)
at 10,000ft / FL100 / 3048m when it is 197.0km away (122.4 miles)
at 20,000ft / FL200 / 6096m when it is 278.5km away (173.0 miles)
at 35,500ft / FL355 / 10.82km when it is 370.9km away (230.5 miles)
at 50,000ft / FL500 / 15.24km when it is 440 km away (273.4 miles)
an e.g. shuttle orb. 240km when it is 1721 km away *
* i.e. 'directly overhead a point on the ground that is X km away'

Line of sight range to the horizon (miles) = the square root of ( 1.5 x the_altitude_in_feet )
( Thanks to Wikipedia: Horizon )


"According to ICAO Annex 10, all enroute & approach VHF Tx's are limited to 50 watts output power;
in the aerodrome no figure is stated but TX's must be able to be received at 4,000 ft above
aerodrome elev at 25nm from the AD ARP (Aerodrome Reference Point)" - "designated operational
coverage (DOC) for an approach service 25nm 10,000ft."


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Re: The Complete UK Radio Spectrum (0 Hz to 30 EHz)

Postby M3TSY » Wed Nov 21, 2012 11:52 pm

-137=-----Mid Band-------------
Mobile, military, Aero OR, emergency services (French splits +/-4.6)
Military PTARMIGAN access links

137=... Aero (OR) to 144=

137=... Satellite, to 138=

Weather Satellites, 137.3, 137.4, 137.5, 137.62, 137.85 etc. Tracking.
FM picture data not only too wide for most scanners (50kHz best) but mind the Doppler shift too!
More. Good AmSat Keplers tutorial.

LEO MSS Sat. downlinks, to 138= (up at 148-149.9) Orbcomm (4800 bps FSK)
137.000= - 137.025= Primary
137.025= - 137.175= Secondary
137.175= - 137.825= Primary
137.825= - 138.000= Secondary

Orbcomm 25kHz 12dBW RHCP channels, 1 per sat.
137.200 S1
137.225 S2
137.250 S3
137.2875 S11
137.3125 S12
137.435 S4
137.460 S5
137.560 Gateway (50kHz)
137.6625 S6
137.678 S7
137.7125 S8
137.7375 S9
137.800 S10

138=... MoD, to 143 ( Euro harmonised military band to 144= )
Some FM at 142, split +7.1

137.975..Paging, to 138.2 (25kHz channels) Vodafone and Pageone except 138.05 and 138.1
Police: had 4 x FM air-ground-air ch.s at +/- 6.25kHz around 138.1 & 138.3

138.2=...future Euro. SRD band, to 138.45=

138.7 SAR secondary


139.5125=PBR, to 140.4875= (split +8.5: 148.01875-148.98125) Trunked.
Some remaining use in Fuel/Power industry, recently also used by Transport (buses).
139.51875---148.01875
to
140.48125---148.98125

"J Band" still exclusively managed by JRC :
was Elec. (up to J57 139.95625) and Gas (J59 139.98125 upwards) industries. MPT1327 spec. Phased in, 1989-95

139.51875-140.48125 J22-J99, 76 main ch 12.5kHz spaced (no J01-J21) 6.25kHz offsets (RA's M802-M879)
139.525 -140.475 K22-K98, interleaved (J+6.25kHz) (RA's M902-M978)
JRC paging in channel K90/M884/M887 140.375/148.875 (single at J90/M883/M886 below & J91/M885/M888 above)

9 sets of 8 channels for cellular plan :

---Elec---- ----Gas---- plan (final page) (14MB file!)
1 2 3 4 5 6 7 8
A 22 31 40 49 64 74 84 94
B 23 32 41 50 65 75 85 95
C 24 33 42 51 66 76 86 96
D 25 34 43 52 67 77 87 97
E 26 35 44 53 59 69 79 89
F 27 36 45 54 60 70 80 98
G 28 37 46 55 61 71 81 99
H 29 38 47 56 62 72 82 92
K 30 39 48 57 63 73 83 93
58 68 78 88 -- Coal

Disused by most of the gas industry by 2004, and some elec. too

1969 to early 90s (by 1995) : 138-141 MHz and the top of Band II was used for PMR; JRC (84 ch), rail
138.01875.. Middle Band, to 140.94375 (split -33: 105.01875-107.94375) AM, 12.5kHz channels (6.25kHz offsets)
(channel 122 at 139.51875 became J22 by replacing the 1 with a J)
Channel 1 at 138.00625 was never used
(old 140.96875 STH channel no longer used)


Some JFMG (Base) in the Channel Islands at 139.55 (GU) & 139.575 (GJ), and simplex at 139.65

Common freq.s used for illegal NFM bugs 140.0 (B), 139.97 (A), 139.94 (C)


141=... JFMG, wide area Talkback (75kHz max), to 141.5= (previously 141.9=) 6.25 kHz offsets
Simplex and duplex (split: mobiles at 212MHz). +airborne. Not in Channel Islands.
(140.993 London only)
141.006..ILR, to 141.193
141.206..BBC radio, to 141.256
141.268 not available to BBC - & 141.281
141.293..BBC radio, to 141.318 (.318 BBC News)
141.375 BBC 75kHz wideband
141.418 BBC
141.4625 BBC 75kHz wideband


"142·5-143·0 MHz is for Mobile services and not restricted to Land Mobile"

143.0=... H.O., to 144= - see 152 (143.975 Air-ground-air alloc., not known if used)
143.625 Space - ISS station (143.6-143.65) - also 121.75 & 130.165 FM (ex MIR)

143.75.. unauthorised use by Hang gliders and para gliders, to 143.95 (calling 143.95)


2m [checked and updated 2012] (RSGB Bandplan 2012)
144=... Amateur 2m band, to 146= (1947) Primary - IARU Bandplan: range

144.0... CW,MGM incl. EME CW,MGM (Moonbounce)...
144.138 PSK31
144.15.. SSB,CW,MGM (no Machine Generated Modes 144.18-144.36)
144.175 Microwave talk-back
144.2 MS calling
144.25 GB2RS/Slow Morse
144.3 SSB calling
144.370 MGM calling
144.4... Beacons...
144.5... All modes
144.5 SSTV calling
144.525 SSB ATV Talkback
144.6 RTTY
144.6125 Digital Voice (single) - D-Star
144.625 Emergency/Events priority, to 144.675
144.7 FAX
144.725 in the south - you'll appear on F5ZBF (Caen 145.325) when there's a lift!
144.75 ATV Talkback
144.775 Emergency/Events priority, to 144.7875
144.794= Digital, Gateways, to 144.99
144.8 APRS, other digital
144.825 Internet Voice Gateways & 144.8375
144.85 AX25,Nodes,TCP/IP, to 144.975

145.0... Repeater inputs, to 145.1875

145.2... FM Simplex, to 145.5875 (12.5 kHz channels - +/-2.5kHz maximum FM deviation, 11kHz b/w)

Are V channel numbers supposed to make life easier?!
(These originated from the Tel Aviv conference in 1996)
Oh yes, 145.7375, let's see... 7.375 times 8... 59 of course.
We can all do that in our heads, can't we?
If it's not simple and intuitive (for telling a contact to QSY)
then what IS the point? Saying "decimal 73" will do the job better.

List of mostly the old S channels (from 1970s, 25kHz spaced, +/-5kHz deviation, 16kHz bandwidth) :

145.2 S8, V16 Raynet priority, MIR (with 145.8)
145.2125 V17 internet voice gateways, and 145.2375, 145.2875, 145.3375 (ex 145.2625)
145.225 S9, V18 Raynet priority
145.25 S10, V20 Slow Morse
145.275 S11, V22
145.3 S12, V24 RTTY Local
145.325 S13, V26 + French R8b F5ZBF repeater Caen (split: normal -0.6) French Repeaters map/info
145.35 S14, V28 + French R9b
145.375 S15, V30 + French R10b
145.4 S16, V32 + French R11b
145.425 S17, V34 + French R12b
145.45 S18, V36
145.475 S19, V38
145.5 S20, V40 FM calling channel
145.525 S21, V42 GB2RS news, Sundays
145.55 S22, V44 Rally talk-in
145.575 S23, V46 Future RV46 repeaters
145.5875 V47 Future RV47 repeaters
(Repeaters 145.6 - 145.7875, split: -0.6) - UK repeaters started in 1972
145.600 R0, RV48
145.6125 R0x, RV49
145.625 R1, RV50
145.6375 R1x, RV51
145.650 R2, RV52
145.6625 R2x, RV53
145.675 R3, RV54
145.6875 R3x, RV55
145.700 R4, RV56
145.7125 R4x, RV57
145.725 R5, RV58
145.7375 R5x, RV59
145.750 R6, RV60
145.7625 R6x, RV61
145.775 R7, RV62
145.7875 R7x, RV63 (was proposed 16kHz data links in 1998, on 145.790)

UK FM Repeater callsigns start with GB3 --· -··· ···--
Sometimes CW IDs start with totally pointless and confusing DE ('from') -·· ·

CTCSS access mandatory for new repeaters since 2004, replacing 1750Hz tone burst.
European repeaters use CTCSS up to 141.3 Hz or more.
UK Tones & Morse :
A 67 ·- B 71.9 -··· C 77 -·-· D 82.5 -·· E 88.5 · F 94.8 ··-· G 103.5 --· H 110.9 ···· J 118.8 ·---

"the main reason for establishing a Repeater is for the purpose of providing improved communications for
those operating mobile stations and fixed stations in difficult terrain." - OFCOM Guide To Repeater Licensing

Repeater DX : Belgium Denmark France Germany Nederland [2012]


145.8=... Satellite Service, to 146= [updated 2012 with current links]
Current operational frequencies (AMSAT) & AMSAT News

Typical doppler shifts : 300-2000km Low Earth Orbit +/-3.5kHz at 2m, +/-10kHz at 70cm
( Radius of the Earth = 6370km, 'Great Circle' circumference of the Earth = 40,000km )
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Re: The Complete UK Radio Spectrum (0 Hz to 30 EHz)

Postby M3TSY » Wed Nov 21, 2012 11:53 pm

-146=--------

USA 2m band is 2x the size, 144-148! (ARRL Bandplans 2012)

146=...H.O., see 154


148=...JRC,LEO, see 139.5 and 137
(Some JFMG in the Channel Islands at 148.575 & 148.725 - mobile)
148.875 H.O

149... MoD, to 154

German 'Freenet' licence-free two-way
149.025 1
149.0375 2
149.050 3
149.0875 4
149.100 5
149.1125 6

149.61 US GES uplink
149.9=...Satellite Navigation & MSS uplinks, to 150.05=
149.91 149.94 149.97 150.00 150.03 149.985 NIMS
150.05=..Radio Astronomy, to 152= PRIMARY exclusive
+ Oil-slick markers (150.5= - 150.55=)
151.625 unlicensed USA red "DOT" radios (more) +151.955 purple, 154.57 blue/MURS & 154.6 green/MURS
also at 462 GMRS, 464 & 467... +new MURS with 151.82, 151.88 & 151.94

152... H.O. - ex Emergency Services, to 153.0125= (with 143-144)
was mostly police FM. 12.5kHz (see 154)

153.025..Paging, to 153.475 (25kHz channels) except 153.05 (HO)
FSK POCSAG (bursts) [Hear it here!] Used by Trafficmaster, COACS
153.025 FLEX paging (continuous) +153.325 [Hear it here!]

Leicester City Council (0250278) 12.5kHz
153.39375 153.40625 153.41875 153.43125 153.44375 153.45625

153.5=...Land mobile service: MoD (incl. cadets), to 154.0=
153.6 mountain rescue
153.7125 various, incl. BRC

154=... Vacant after Emergency Services move to TETRA, to 155.975

H.O. - ex Emergency Services (with 146-148) mostly police, AM/FM. 12.5kHz
143/152 and 146/154 used after WARC-79, from 1987-1989 onwards until move to Airwave TETRA by the end of 2006.

"The (TR/RX) offset for Police/Fire varies to stop interaction between channels
when talkthrough is on - this is historic as it was believed that common
offsets could not be used on the same site; today it is done everywhere." - thanks Andrew W.

147.0-147.3 split 8: 155.0-155.3 used for ROC/UKWMO in 1970s/80s (source)

SAR channels - (excluding 24, 62,63,64, 85 in marine section) info, more
0 156.0 Primary Coastguard SAR for use with Declared Facilities when 16 is not appropriate
10 156.5
67 156.375 1st alternative to Ch 0
73 156.675 2nd alternative to Ch 0
53a 158.65 Reserve TWC and for SARDA (max 6,500ft airborne) (from late 1980s)
91 155.35
92 147.475
93 152.85 Scotland SAR
94 155.35(91)---147.475(92)
95 152.85(93)---147.475(92)
96 147.35 Land SAR
96d 146.025 Land SAR
97 number not allocated
98 168.35 Scotland - FFSK
99 174.0375 Scotland - FFSK
100 168.35(98)---174.0375(99) Duplex FFSK (Fast Frequency Shift Keying)
101 70.85 \ Links, with 102
102 81.0 / Links, with 101
105 86.3125 Scotland - Rebroadcast feeder
106 86.325 (not Scotland) (from mid 1960s)
107 81.05 Scotland - Rebroadcast feeder
108 70.5625 Scotland - Rebroadcast feeder
L 161.225 Lifeguards (RNLI)

There is a Euro plan (25-08) to re-organise 146-156: (boundaries)
151.4 ... Base, to 156 (split -7: 146.8-151.4) single: 146-146.8 and 149.9-150.05 & 154.5-154.65

155... Possible private marine VHF channels (for companies or general use), of European origin. 25kHz FM.
Nordic Leisure boating L1 155.500, L2 155.525, L3 155.650 (info)
Fishing F1 155.625, F2 155.775, F3 155.825
Denmark P1 155.375, P2 155.575, P3 155.450, P4 155.800


-156=--------------------------
Mobile, Marine VHF (SAR, MBR/CSR)
PMR/PBR + CBS + STH, Ambulances, Paging (ERMES), SRD, mobile data, Civil Defence
Earliest Pye gear that worked above 156MHz dates from the early 1950s, 160/165 as brochure example.
Marine VHF from late 1940s, ch16 156.8 agreed in Atlantic City 1949.

156.0... Marine, to 158.525= single OR dual: see 160.625
158.5375.PBR, to 160.5375 single OR dual: see 163.0375
... alarms
160.6... Marine, to 163.025= single OR dual (split -4.6: 156.025-158.4)

Marine, to 163 - International and private 25kHz channels, single and dual (split -4.6).
Was 50 kHz spacing until SOLAS 1972, then new channels were fitted in, in between...

Band structure: two main sections linked by a 4.6MHz frequency shift
Dual channels : international and private
156.0-158.4 lines up with 160.6-163.0 at 4.6MHz higher, the lower section being the ship/mobile
side of dual-freq. channels, the higher side being for shore/base. The international channels
finish at 157.425/162.025 and the rest are private channels, which may be dual or single.
Single channels:
156.375-156.875 and 160.975-161.475 are not joined, and have single-freq usage with international
channels at 156 and private at 161.

Between 158.4 and 160.6 the mobile channels of a PBR band can be found. As this 163.0375-165.0375
band utilises a 4.5 MHz split, the mobile side covers 158.5375-160.5375 - the gap at 158.425 to
158.5 is used for a few more single-freq. private marine channels, and at 160.55 to 160.575 there
are three local authority alarm channels.

For single/mobile freqs.. MHz = (ch number x 0.05) + 156 (add 4.6 for the shore freq)
or more simply divide the ch by 2 and that's the decimal places : 156.(ch/2) i.e. 16 = 156.*8*
Because channels 60 and above are interleaved, you need to EITHER:
Subtract 2.975 MHz AFTERWARDS ** OR ** subtract 59.5 from the channel number BEFORE
... or more simply (!) take 60 from the ch and then add .025 to the frequency : 74.. 14.. 156.725


WRC-1997 changed the use of paired freq.s for channels 87 and 88 separately, to accommodate a VTS
called AIS - (Automatic Identification and Surveillance) at 162 MHz, and allow simplex at 157 MHz.
ERC decision (ERC/DEC/(99)17) June 1999 approves this, effective 1-1-2000.

WRC-97 also allowed use of channels 75 and 76 for voice, which had been unused guardbands for channel 16.
(Earlier plans had included simplex use of channels 18 and 82-86)

The 2004 OFCOM info sheet shows the breakup of channels 87 and 88, and the introduction of 75 and 76.

Channel 88 used to be used for Radio Lighthouses, a null was swept around the compass... i.e.
you'd count the "pips" and when the signal briefly disappeared that would give you a bearing

Channel 99 (160.6) started life as channel 00, but apparently 00 is what the coastguards dial into
their consoles to clear them! Do not confuse with what would be the real ch99 on 157.975 / 162.575
- a private channel which (just to confuse matters) is actually used as a land-based CBS channel!

Some sets may be set from "international" to "USA" mode, and then some
of the dual frequency channels can be used as single (ship channel) frequencies;
(e.g. 157.125 = 82a for USA single freq use - can't be heard on an "international" set)
which could be handy for a "private" channel, no-one else would hear you! (apart
from coast stations that use that channel. So you'd want to pick a clear one - and
bear in mind that if you don't you won't be able to hear them telling you to move!)
Maybe it's best not to, then. Interesting thought though, isn't it?

160.9 used to be used for ITV talkback, I'm told.
Also used for talkback was 161.3875 (12.5 kHz),
and within the channels 161.325 and 161.45

OFCOM's own channel numbering is as follows:
Channel numbers 1440 (156) to 2000 (163.0) can be traced back (in
12.5kHz steps) to the start of a sequence where channel 1 is 138.0125
- this applies up to the last Mid-band channel M2163 (165.0375) and
down in the JRC bands i.e. M802 being the high side of the 148.01875
& 139.51875 pair, give or take a half channel offset (-6.25kHz) (as
happens positively at 448 / 431 ).
160.6 is OFCOM channel 1808, 156 is channel 1440 - the difference of 368
being 4.6 MHz worth of 12.5 kHz channels. Marine dual pairs take the
channel number of the higher (shore) frequency. For single use of the
private section 157.45-163 the channels numbers are shifted along in
sequence by 1000.

Search And Rescue needs have been met by splitting paired channels into two separate channels,
and then in 2009 these A and B channels were split into 2 again with 12.5kHz channel widths
with center freq.s +/- 6.25kHz around the old center freq.s, making 4 channels out of one old
2 x 25kHz pairing. CTCSS tone 218.1 is used.

WRC-2012 is expected to have approved simplex use of channels 01, 07, 19, 20, 21, 60, 66, 78, 79, 80


Let's track this in two columns 4.6 MHz apart...

** First, two single freq.s...
--------------------------- -------
160.600 99 Coastguards 156.000 0 Coastguards

** Now dual freq. pairs,
** Port Ops & Public Correspondence (phone - link calls)
Shore/Base Ship/mobile 4.6 MHz lower
--------------------------------------
160.625---156.025 60
160.650---156.050 1
160.675---156.075 61
160.700---156.100 2

160.71875 623
160.725---156.125 62
156.125 62A SAR ECC Emergency Call - Common, inter-agency & helicopters
62B 160.725 SAR Land Team Working Channel
160.73125 624

160.750---156.150 3

160.76875 633 156.16875 631 SAR
160.775---156.175 63
63B 160.775 156.175 63A SAR
160.78125 634 156.18125 632 SAR

160.800---156.200 4

160.81875 643 156.21875 641 SAR
160.825---156.225 64
64B 160.825 156.225 64A SAR
160.83125 644 156.23125 642 SAR

160.850---156.250 5
160.875---156.275 65
160.900 ??? 156.300 6 intership1 and SAR
160.925---156.325 66
160.950---156.350 7

** Now single freq.s Base/Mobile
---------------------------- -------
160.975 CSR-1838 156.375 67 (intership9 away from coasts) + SAR/Safety/Coastguard
161 to 161.2 Paging returns 156.400 8 intership2
(31/49/459) 156.425 68 ports
(+local comms) 156.450 9 intership5/ports/Pilots
156.475 69 intership8/ports/Customs
156.500 10 (intership3 away from coasts)/ports/pollution/SAR + UK Safety Info
156.525 70 DSC Digital SelCall ONLY, GMDSS NO VOICE
161.15 CSR-1852 156.550 11 ports/SAR
161.175 CSR-1854 156.575 71 ports
161.2 CSR-1856 156.600 12 ports
161.225 ch 'L' - Lifeguards 156.625 72 intership6
161.25 CSR-1860 156.650 13 intership4/ports + International Nav Safety Comms
161.275 Marine 10mW Alarms 156.675 73 (intership7 away from coasts)/ports/SAR + Safety Info
161.300 CSR-1864 (OBH) 156.700 14 Ports
156.725 74 Ports/locks/swingbridges
161.350 On-board handhelds 156.750 15 intership11/ports/ 1W on-board
161.375 CSR-1870 156.775 75 Ports, Navigation comms only, 1W (and AIS Sat E-S)
161.400 CSR-1872 / Nav.? 156.800 16 Calling, Distress
161.425 M2 (marinas) 156.825 76 Ports, Navigation comms only, 1W (and AIS Sat E-S)
156.850 17 intership12/ports/ 1W on-board
161.475 CSR-1878 156.875 77 intership10

** Now dual freq. pairs again
** Port ops up to 161.725 and Pub.Corresp. from 161.750 (both: 78,81,84)
Shore Ship
--------------------------------------
161.500---156.900 18
161.525---156.925 78
161.550---156.950 19
161.575---156.975 79
161.600---157.000 20
161.625---157.025 80 Marinas primary CSR-1890
161.650---157.050 21
161.675---157.075 81
161.700---157.100 22
161.725---157.125 82
161.750---157.150 23
161.775---157.175 83

161.79375 243
161.800---157.200 24
157.200 24A SAR (24a G2A Ground-to-Air to replace 73) Casualty winching
24B 161.800 SAR Team Working Channel
161.80625 244

161.825---157.225 84
161.850---157.250 25

161.86875 853 157.26875 851 SAR
161.875---157.275 85 SAR paired
85B 161.875 157.275 85A SAR
161.88125 854 157.28125 852 SAR

161.900---157.300 26
161.925---157.325 86
161.950---157.350 27

161.975---157.375 87 old, paired use
161.975 AIS1 87B 157.375 87 Port ops

162.000---157.400 28

162.025---157.425 88 old, paired use - No more "Radio Lighthouses"
162.025 AIS2 88B 157.425 88 Port Ops


** Private channels, single OR dual CSR/MBR
** and some land PMR and CBS, same split -4.6
** In this part, the pairings are only shown
** for the first and last pair, to save space
Single OR Base Mobile (or Single)
---------------------------- -------
162.050 CSR-2924 single... 157.450 29 CSR-2556 single
OR 162.050---157.450 29 CSR-1924 dual

--CSR---Land Use--
162.050 CSR / CBS(Birm.)
162.0625 CBS(Lond./Birm.)
162.075 CSR / CBS(Lond./Birm.)
162.0875 CBS(Lond./Birm.)
162.100 - CBS(Lond./Birm.)
162.1125 -none-
162.125 CSR -none-
162.1375-- -none- (162.14375)
162.150 RNLI -none- (25kHz) 157.550 31 RNLI (two 12.5kHz channels at +/-6.25kHz)
162.1625-- -none- (162.15625)
162.175 CBS
162.1875 CBS(Lond./Birm.)
162.200 CSR / CBS(Lond./Birm.)
162.2125 CBS(Lond./Birm.)
162.225 - CBS +PMR(Lond. - couriers)
162.2375 -none-
162.250 CSR -none-
162.2626 -none-
162.275 - CBS +PMR(Lond. - couriers)
162.2875 -none-
162.300 CSR -none-
162.3125 -none-
162.325 - CBS
162.3375 CBS(Lond./Birm.)
162.350 CSR / CBS(Birm.)
162.3625 CBS(Lond./Birm.)
162.375 - CBS
162.3875 -none-
162.400 CSR -none-
162.4125 -none-
162.425 - CBS +PMR(Lond. - couriers)
162.4375 -none-
162.450 DGPS -none- 157.850 37/M marinas secondary RA-1588
162.4625 -none-
162.475 - CBS
162.4874 -none-
162.500 CSR -none-
162.5125 -none-
162.525 - CBS(Birm.)
162.5375 -none-
162.550 CSR -none-
162.5625 -none-
162.575 - CBS
162.5875 -none-

162.600 CSR only - no CBS at all
to (25kHz)
162.850 CSR

(162.825 104A Telex 158.225 104B Fax. no longer used)

162.8625 -none-
162.875 - CBS
162.8875 -none-
162.900 CSR -none-
162.9125 -none-
162.925 - CBS
162.9375 PBR London Bus Services Limited (0236402)
162.950 CSR
162.9625 PBR (Technically Assigned)
162.975 - CBS
162.9875 -none-
163.000 CSR

163.000 CSR-3000 single 158.400 48 CSR-2632 single
163.000---158.400 48 CSR-2000 dual


162.4-162.55 MHz "Weather" frequencies (as found on some USA scanners) apply only to
land-based NOAA transmissions on the North American Continent - it doesn't reach here!


** Now private single freq.s Single
---------------------------- -------
163.025 Diff. GPS 158.425 108 CSR-1634
158.450 49 CSR-1636
0.1 MHz gap where 158.475 109 CSR-1638
"4.6 split" and 158.500 50 CSR-1640
"4.5 split" systems meet -158.525=---
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Re: The Complete UK Radio Spectrum (0 Hz to 30 EHz)

Postby M3TSY » Wed Nov 21, 2012 11:54 pm

163.0375

** We'll change now to a 4.5 MHz difference, and 12.5 kHz spacings

163.0375.PBR, to 165.0375 (split -4.5: 158.5375-160.5375) Mid Band
Many CBS (including some multi-channel trunked CBS) - 85 dual channels available.
Despite this section only being allocated to LAND MOBILE, (12.5 kHz) in some
books and magazines you may find extra marine channels given (channel number
greater than 50), either single or -4.6 dual, in the first 150kHz or so. (i.e. ch 53)
This seems to be a throwback to a bygone age when the marine band was larger.
Marine channels are 25kHz bandwidth too, so that ruins half of the 12.5kHz channel
above and below. How wasteful.

The first 70 per cent used to be used for the old BT RadioTelephones :
(until 1985 saw the arrival of TACS at 935-950 MHz)

163.0375... BT System 4 (1983-1987), to 164.4125 (split -4.5: 158.5375-159.9125)
12.5kHz, ch.s U1-U111, full duplex, 6 digit nums
Early versions used from 163.0375 to only 164.2125 as System 4 channels 95 down to 01.
U57 (163.7375 - base only) was control. 163.025 and 164.425 were boundaries.
and before that:

163.050 ... BT System 3 (1977), to 164.400 (split -4.5, 25kHz channels 55-1 in reverse!)
ch17 164.0 control, PTT, 5 digit #
and before that:
System 2 (1970s) with 9ch + 1 control ch (same band).
System 1 (1959 S.Lancs, 1965 Gr.London)

Image

Single OR Base Mobile (or Single)
---------------------------------------
163.0375---158.5375 M2003 PBR Wide Area
163.050 ---158.550 M2004 CBS
163.0625---158.5625 M2005 CBS
163.075 ---158.575 M2006 CBS
163.0875---158.5875 M2007 SJA (0295652)
163.100 ---158.600 M2008 CBS
163.1125---158.6125 M2009 CBS
163.125 ---158.625 M2010 CBS
163.1375 single
158.64375 531 SAR
163.15 single 158.65 53a SAR (25kHz til end of 2009). Ch95 pair (Scotl.) 53a---93 (152.85)
158.65625 532 SAR
163.1625 single - Tracker
(163.175 ---158.675 non PBR)
(163.1875---158.6875 non PBR)
163.200 ---158.700 M2016 CBS
163.2125---158.7125 M2017 CBS
163.225 ---158.725 M2018 CBS
163.2375---158.7375
to unallocated
163.275 ---158.775
163.2875---158.7875 M2023 STH (or either singly)
163.300 ---158.800 M2024 SJA
163.3125---158.8125 M2025
to CBS (except 163.375--158.875 BRC)
163.425 ---158.925 M2034
163.4375---158.9375 BRC (0310908)
163.45 ---158.95 M2036 Data Dominant
163.4625---158.9625 M2037 Data Dominant
163.475 ---158.975 M2038 Data Dominant
163.4875---158.9875 M2039 BRC
163.5 ---159.0 M2040 Data Dominant
163.5125---159.0125 M2041 SJA
163.525 ---159.025 M2042 Data Dominant
163.5375---159.0375
to appears to be spare, possibly H.O.
163.5875---159.0875
163.6 ---159.1 RNLI (0138319)
163.6125---159.1125
to British Red Cross (Licence 0780200)
163.675 ---159.175
163.6875---159.1875 M2055 STH Construction only (or either singly)
163.7 ---159.2 M2056
to Data Dominant
167.7375---159.2375 M2059
163.750 ---159.250 M2060 STH Construction only (or either singly)
163.7625---159.2625
to Vodafone (Data) Ltd (was Paknet, then Data Services Ltd)
163.8375---159.3375
163.850 ---159.350 M2068 STH Construction only (or either singly)
163.875 ---159.375 M2070 Data only (IR2008)
163.8875---159.3875 M2071 Data only (IR2008)
163.900 ---159.400 M2072 STH (or 163.9 singly) (ex RQAS only)
163.9125---159.4125 M2073 Data Dominant
163.925 ---159.425 M2074 STH (or either singly)
163.9375---159.4375 M2075 Data Dominant
163.950 ---159.450 M2076 demo/parking
163.9625---159.4624 M2077 CBS
163.975 ---159.475 M2078 CBS
163.9875 STH 159.4875 STH (ex RQAS)
164.000 STH (ex RQAS) 159.500 STH (ex RQAS)
164.0125 on site 159.5125 on site
164.025 on site (*?) 159.525 on site
164.0375 on site (*?) 159.5375 on site
164.050 Simple UK (was UKG) 159.55
164.0625 Simple UK (was UKG) to spare, possibly H.O.
164.075 on site 159.575
164.0875 STH 159.5875 STH (ex RQAS)
164.1 ---159.6 M2088 Data only (IR2008)
164.1125---159.6125
164.125 STH (ex RQAS) 159.625 STH (ex RQAS)
164.1375 on site 159.6375 Local Comms returns (to 459MHz)
164.150 (*?) 159.65 Local comms ret.
164.1625 on site 159.6625 Local comms ret.
164.175 data (tracking) 159.675 Local comms ret.
164.1875 STH (ex RQAS) 159.6875 STH
164.200 page ret. (as 161) 159.700 Local comms ret.
164.2125---159.7125 18 channels :
to Vodafone (Data) Ltd (was Paknet, then Data Services Ltd)
164.425 ---159.925 base continuous (25 channels, 7 more at 163.7675) [Hear it here!]

164.4375 - 165.0375
this top section used to be mainly Private Message Handling - operators speaking
to mobile doctors etc. (AirCall/MediCall), and is now CBS "predominantly" with
some wide area or on-site technical assignments e.g. 164.475--159.975 BRC (0793939)
164.4375---159.9375 M2115
to
165.0375---160.5375 M2163 (Last "mid band" ch.)
---------------------------- --------
160.550 - 160.575 Alarms (3x 12.5kHz)
** the end of this 2nd column now joins the start of the 1st. now we've covered 4.6MHz **

160.3 to 160.55 was once used for 11 private marine channels (1970s)
(and at the time Private Message Handling thus only went to 164.775/160.275)
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Re: The Complete UK Radio Spectrum (0 Hz to 30 EHz)

Postby M3TSY » Thu Nov 22, 2012 12:02 am

-165.04375=-------------------

High Band
12.5kHz channels. Some "TalkThrough". DCS.
Security firms (Datatrack mobile digital - on 5 national Securicor channels)
Ambulance service (many at 166.1-166.85), Taxis, etc.


Image


National exclusive: 45 dual, 11 single
CBS: 20 dual
On-site shared: 5 dual, 31 single
Wide Area Shared: 185 dual
Simple UK Light (was UK General): 5 single

Summary
165.05...PBR, to 168.2375 256ch (split +4.8: 169.850 -173.0375) (French splits -4.6) (ISM 168 +/- 8kHz)
168.25...PBR, to 168.3 4ch single, 1 pairing
168.3125=... H.O.
168.85...PBR, to 169.8375 46ch single (with 169.4 to 169.8125 removed)
169.85...PBR, to 173.0375 256ch single OR dual: see 165.05
173.05...PBR, to 173.0875 4ch single

Trying to subtract 4.8 in your head? Why not subtract 5 (easy) then add 0.2 (easy too)!
Subtracting 5 too hard?!! Add 5 if it's easier, then take 10!


Chart
** a 4.8 MHz difference UPWARDS
Base Mobile 256 channels, not all shown:
---------------------------------------
165.0500---169.8500 ch H001 Hxxx = (freq - 165.0375) / 0.0125

165.075 ---169.875 Road Construction (not London)

165.1625---169.9625 ON SITE 32 DUAL
165.1875---169.9875 ON SITE 33 DUAL
165.2125---170.0125 ON SITE 34 DUAL
165.6375---170.4375 btp (+165.65)
166.4375---171.2375 NHS Ambulance emerg. reserve ch.
Amb. used 166.1, 166.2, 166.275-166.4125,166.4625-166.6125, 166.75, 166.8

166.7625---171.5625 ON SITE 35 DUAL
167.0375---171.8375 ON SITE 36 DUAL

167.2000---172.000 demo/"parking"/Test&Dev

172.65 Czech licence-free two-way & 172.725, 172.95, 172.975
168.2375---173.0375 ch H256


** single freq.s (5)
---------------------------- --------
168.250 PBR H257 173.050 Simple UK Light (was UK General)
168.2625 PBR H258 173.0625 Simple UK Light (was UK General)
168.2750---173.075 PBR H259
168.2875 PBR H260 (& Alarms) 173.0875 Simple UK Light (was UK General) --173.09375= end of high band PBR--
168.300 PBR H261 173.100... H.O. + LPD/SRD

-168.3125=-boundary----------
168.325 H.O. 168.325-168.8 split +5.7: 174.025-174.5 used for ROC/UKWMO in 1970s/80s (source)
to
168.825
-168.8375=------------------- boundary used to be listed as 168.95 ----

44 channels, not all shown:

168.850 PBR H305
168.9375 PBR H312 (& Alarms)
169.0125 STH
169.050 JRC H321
169.0625 PBR ex UK General?
169.0875 Simple UK Light (was UK General)
169.1375 STH
169.1625 STH
169.1875 STH
169.3125 Simple UK Light (was UK General)
169.3375 PBR motor sports (National-RAC)
169.3875 PBR H348

-169.39375=------------------

168.9625-169.8375 used to be all PBR single, then Europe took away 169.4-169.8125 for ERMES
leaving 2 PBR channels at the top. The PBR Single band was then extended down to 168.8375=
(ex STH channels: 169.4375 169.475 169.4875 169.5375? 169.575 169.6375 169.7625)

Council Directive 90/544/EEC of 9.Oct.1990 required Member States to designate the 169.4-169.8MHz
frequency band for the pan-European land-based public radio paging service (known as ERMES).
However, it wasn't a success as other technologies (SMS) replaced the need and made ERMES redundant.

169.425 ERMES-01
ERMES Paging (25kHz, continuous, 6.25kbps, 4level FSK) [Hear it here!]
16 channels, with each country having 4 "preferred" channels more more

Austria 2,6,8,12
Czech R. 1,2,9,10,12,13
Finland - 11
France 10,14
.li 1,4,12,15
Italy & Denmark 8,10,12,14
Portugal 1,3,10,14
Slovakia 2,3,5,5,16
Sweden 10
Swiss - 1,4,12,15
to
169.800 ERMES-16

Following CEPT assessment in 2004, exclusive ERMES use was withdrawn March 2005: ECC/DEC/(05)03

New 2005 plan ECC/DEC/(05)02 to share with any remaining paging :

169.400=... Low power, <=0.5W, 12.5/25/50kHz bandwidth, hearing aids/alarms/meters/tracking
169.600=... (guard band)
169.6125=.. High power, 12.5/25kHz bandwidth, tracking, paging, PBR
169.625 .65 .7 .75 Claas Uk Limited (0785523)
to 169.8125=

-169.81875=------------------ 2 more Single channels :
169.825 PBR H383
169.8375 PBR H384


169.85... mobile (see start of second column above) or single, to 173.0375

173.05... PBR, see 2nd column opposite 168.250

173.1... SRD, to 177.2= Mics, JFMG, Theatres, Telemetry, Alarms, Telecommand, Deaf-aids

173.1875 SRD license-exempt
173.2=... licensed SRD, to 173.35= ( and 173.7= to 174= )
173.225 fixed or short range alarms only
173.35=...Aids for the deaf, to 174.415= 50kHz 2mW use the lowest freqs possible
1st set 173.35, 173.4, 173.465, 173.545, 173.64
2nd set 173.695, 173.775, 173.825, 173.95, 173.99
3rd set 174.07, 174.12, 174.185, 174.27, 174.36, 174.415
4th set 174.6, 174.675, 174.77, 174.885, 175.02

173.5125 French POCSAG paging (and 85.955)
173.5875 only telemetry, telecommand, speech, & 173.6 (1997) 10mW
173.7= medical/biological telemetry, to 174
173.7=... mics...
173.965=..Aids for handicapped, to 174.015=
173.9875=.HO, to 174.4125= (allocated, not known if used) see 168.3 for old use

There is a Euro plan (25-08) to re-organise 157.45-174: (boundaries - last pair likely: 173.9875-169.3875)
162.05 ... Base, to 165.2 (split -4.6: 157.45 -160.6) (... this one could well be the full range though)
169.825 ... Base, to 174 (split -4.6: 165.225-169.4)
and some single around 165.2125

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Re: The Complete UK Radio Spectrum (0 Hz to 30 EHz)

Postby M3TSY » Thu Nov 22, 2012 12:04 am

-174=--------------------------
Band III - ex TV Broadcasting (405 lines b/w TV) (ITV) until 1984, DAB
UK: Mobile - PAMR/PBR/JFMG/PMSE (mics) + AMR + Data
Bus and coach operators, OFCOM's "B9" business class, rail.

ex French TV: 8MHz ch. F5-F10 vision at 176, 184, 192, 200, 208, 216 sound at +6.5
Euro TV (7MHz) E5 174-181, E6 181-188, ... E11 216-223, E12 223-230
ex UK TV (5MHz) B6 176-181, B7 181-186, ... B13 211-216

174.0 ... mics, to 175.1= 174.6, 174.675, 174.77, 174.885, 175.02 5mW 50kHz JFMG info
173.8 yellow 180kHz 2mW
174.1 red
174.5 blue
174.8 green
175.0 white
175.25 mics (200kHz)
175.525 mics (200kHz)
176.3=... mics, to 177.1= at 176.4 176.6 176.8 177.0


--sub band 1--
176.5=... (mics) (unused PBR channels 001-057 : 176.5 = 001)
177.2=
177.2125...PAMR/DATA, to 183.4875 (split +8: 185.2-191.5) channels 058-560 - 63 not allocated
(except 181.7-181.8 - JFMG 12.5kHz 25W simplex talkback)
Some PBR. PAMR is trunked. (control channels continuous) [Hear it here!]
Cognito data - 49 channels on 1xx.x00 / 1xx.x25 / 1xx.x50 / 1xx.x75 [Hear it here!] until Jan 31 2003
180.175 RTPI Traffic Light control, single, and 188.175

183.5=... AMR plan:
183.5125.. 25kHz channels (8), to 183.6875 - shared
183.7=... retained, to 183.9=
184.0 wideband channel - 200kHz
184.1=... retained, to 184.3=
184.3=... single user, exclusive
184.5=... JFMG, to 185.1=
184.6 news gathering mics, and 184.8 185.0
185.2=
185.2125..PBR, see -8 (189.7-189.8 JFMG 12.5kHz 25W simplex talkback)


--sub band 2--
191.5=
191.5=... JFMG
191.7 links 200kHz, news mics
191.9 links 200kHz, mics
192=...mics 200kHz max, to 193.1= 10mW 192.1 192.3 192.6 192.8 193.0
193.2=
193.2125..PBR, see +8
199.5=... JFMG links and mics, SRD
199.7 temp links - 200kHz max, stereo (1 month only, directional, 1W ERP max), mics
199.9 mics, and 200.1 200.3
200.5=... mics, to 201.1= (unused PBR channels 001-057 : 200.5 = 001)
200.6 mics, and 200.8 201.0
201.2125...PAMR/PBR, to 207.4875 (split -8: 193.2-199.5) channels 058-560 - all but 7 allocated
(95 PMR channels, 401 PAMR)
Includes Rail NRN 204.85-206.3 (to be replaced by GSM-R)


--sub band 3--
207.5=


Image

207.6=... JFMG mics, to 210.1=
207.7 coordinated
207.9 coord.
208.1 coord.
208.3 shared
208.6 shared
208.8 coord.
209.0 shared
(209.1= before end of 2007)
New from 1-1-2008 :
209.2 shared
209.4 coord.
209.6 shared
209.8 shared
210.0 coord.

210.1=... now cleared for more DAB : 10B, 10C, 10D, 11A

216... MoD for the Radiolocation Service, to 225 (OFCOM FAT 2010)

NOTES

Previous plans for use :

209.20625=.PBR (future) to 215.26875=

The initial plan had been for another block of PBR/PAMR with 8MHz split...
208.5=... PAMR/PBR, to 215.5= (split +8: 216.5-223.5)

The PBR plan changed as sub-bands 1 & 2 contained the demand, then DAB arrived and took 217.5 onwards
and so they planned -3.3MHz splits keeping space for JFMG and SRD :
209.206= - 215.26875= PAMR/PBR Frequency plan developed using 6.25 and 12.5kHz channels. No use as yet.
209.26... PBR, see +3.3
210.26... SRD
210.97... PBR, see +3.3
211.925...JFMG, to 212.1875 - mobile talkback (to 141 MHz) wide area
212.2 ... SRD
212.5625..PAMR/PBR, to 213.55 (split -3.3: 209.26-210.25)
213.56... ?SRD?
214.275...PAMR/PBR, to 215.2625 (split -3.3: 210.97-211.96) Narrowband modes
215.275...JFMG, to 215.4875 (not split -3.3: 211.97-212.18!!) temp. links

this led to a PBR plan with +3.35MHz splits :
209.2125...PAMR/PBR, to 210.2 (split +3.35: 212.5625-213.55) 12.5kHz
210.206=...reserved for PMR/PAMR, to 210.919= (split +3.35: 213.556 -214.269) bwidth not yet decided
210.919=...reserved for PMR/PAMR, to 211.919= (split +3.35: 214.269 -215.269) narrowband 5/6.25
211.925...JFMG, to 212.1875 - NOW: see 215.275 (WAS: wide area mobile talkback - to 141 MHz)
212.2 ... SRD, to 212.55
212.5625..PAMR/PBR, see -3.35: 209.2125...
213.556=..future PMR/PAMR see -3.35: 210.206=...
214.269=..future PMR/PAMR see -3.35: 210.919=...

update (July 2002) - the PBR plan now seems to be -3.35 splits with 1MHz of 6.25 narrowband :
209.2125...mobile section, to 211.91875
211.925...JFMG, to 212.1875
212.2 ...SRD, to 212.55
212.5625...PAMR/PBR, to 214.2625 (split -3.35: 209.2125-210.9125)
214.26875=.PAMR/PBR 6.25kHz spaced, to 215.26875= (split -3.35: 210.91875= - 211.91875=)


215.275... JFMG SAP base, to 215.4875 (split -3.35: 211.925-212.1875) (WAS: temp. links)
215.5=... SRD, to 217.5
216.0.. JFMG mics, to 217.1= 216.1 216.3 216.6 216.8 217.0
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Re: The Complete UK Radio Spectrum (0 Hz to 30 EHz)

Postby M3TSY » Thu Nov 22, 2012 12:06 am

217.5 DAB

217.5=...DAB, to 230 (1.536 MHz bandwidth) Vertical Pol. (Wikipedia: Digital_Audio_Broadcasting)
Eureka 147 - COFDM - Umpteen hundred narrowband carriers all sharing the bits...

DAB first tested by BBC Jan 1990, demos 91-93, launched Sept 1995.

"DAB-ensemble frequencies are encoded in 19 bits and then multiplied by 16kHz" (max 8GHz)

Other possible DAB channels (4 DAB channels per 7MHz TV ch, 1.712MHz spaced)
5A 174.928 to 5D 180.064
6A 181.936 to 6D 187.072
7A 188.928 to 7D 194.064
8A 195.936 to 8D 201.072
9A 202.928 to 9D 208.064
10A 209.936 to 10D 215.072
11A 216.928

13A 230.784 to 13C 234.208
13D 235.776 to 13F 239.200

216.928 (E11-A) awarded to 4 Digital Group Limited, didn't happen, licence handed back to Ofcom on 30.Jan.2009
218.640 (E11-B) LOCAL
220.352 (E11-C) LOCAL/INR +Isle of Man +Channel Islands
222.064 (E11-D) LOCAL/INR England + Wales
223.936 (E12-A) LOCAL/INR England + Scotland
225.648 (E12-B) BBC UK + Gibraltar (224.88-226.416)
227.360 (E12-C) LOCAL England + Wales
229.072 (E12-D) LOCAL/INR +Northern Ireland

UK use, links [2012] : DAB Ensembles DAB Allocations UK Stations

DAB Sound Quality [2012]
DAB uses the MPEG-1 Audio Layer II (MP2) audio codec which has less efficient compression than newer codecs.
The typical bitrate is only 128 kbit/s so most radio stations on DAB have a lower sound quality than FM.

USA alternative : Wikipedia: FM HD Radio
"Thus HD Radio is approximately twice as data-efficient as DAB."
"codec based upon the MPEG-4 HE-AAC standard... same perceived quality as MP2 at one-quarter the bit rate"
No multiplexes either - one carrier per station as with FM - more flexible.


NOTES

224.0125.. ex JFMG PMSE, to 224.4875 portable links

There is an Amateur 1.25m allocation in the USA from 222 to 225 (ARRL Bandplans 2012)
(was 220-225 until the 1990s) which started (at 224) in 1938.
Unlikely to ever be allocated in Europe, as it's in the middle of the DAB band 217.5-230


-230---------------------------
NATO military band. (Equipment) ARFA/DRFB/FMSC/NJFA/CEAC
"military air-ground-sea tactical communications" (25kHz AM channels) some 12.5kHz spaced ch.s?
Radio Relay, PTARMIGAN multi-channel trunk links.
225-400MHz "HaveQuick" frequency hopped system (7000ch wartime mode, ~20 channels otherwise)

"In 1951 the NATO nations decided to reserve 225-400 MHz for military use, and move
air-ground-air comms to this band from the 100-150 MHz area." - DSI2
The lower end has been lost to DAB, and from 380 upwards is earmarked for Land Mobile such as TETRA.

Used by the Red Arrows, Falcons, Sharks etc for airshows

Some satellite (FM, wide bandwidth) downlinks, especially in the 240/260 MHz region. System info. More

243.0 Distress, EPIRBs 121.5 x 2 = 243 to be phased out
259.7 ex Space shuttle
282.8 Emergency / SAR & 244.6 (Scene of SAR Control), 285.85

(Thailand red CB at 245.0 - 245.9875)
The Philippines, Singapore and Brunei have a 300 mW 40 ch FRS service that operates
on the 325 MHz band (325.0 to 325.4875) - I wonder if any handies get brought over here?

Watch out for unapproved cordless phones at 375-385 (split -126: 249-259) 40 channels nbfm

326.5=... Astronomy, to 328.5= - deuterium spectral line
328.6=... Aero. Nav., to 335.4= - ILS, glideslopes

(350.1625... Indian version of FRS/PMR-446, 31 ch, to 350.5275)


380.0=...Euro emergency services band - TETRA, to 399.9= DEC(96)04 & DEC(99)04 pi/4 DQPSK
TETRA has been chosen for the UK Home Office's Airwave (PSRCP Public Safety Radio Comms Project - ex Quadrant)
for the Emergency Services (and others). Digital, networked, encrypted.
Trans-European Trunked RAdio, (TE part renamed TErrestrial). Carrier numbering (ETSI 100 392-15), more

380.0=... TETRA mobile, see +10
389.9=... TETRA single... (see TR 25-08) because 399.9-400 can't be paired

390.0=...TETRA Base, to 399.9= (split -10: 380= - 389.9=) 25kHz channels, 12.5 offset. Base continuous

390.0= Band Edge
DMO Direct Mode... (split -10) agreed at WRC 2000 ( DEC(01)19 )
(6 ch, or up to 15 x 10kHz channels, 390.005-390.145)
390.0125 ch 1 DMO
to
390.1375 ch 6 DMO

390.15= TMO Trunked Mode... (Network)
390.1625 ch 7 first TMO ch
391.5125 Test & Dev. ?
394.7875 ch 192 last TMO ch

394.8= TETRA Air-Ground-Air, to 395= DEC(01)20
394.8125 ch 193 first A-G-A
394.9875 ch 200 last A-G-A (8 ch, or up to 20 x 10kHz)
395.0=

395.0125... Not yet allocated, to 399.8875
399.9=



396.875... US ISR, to 399.975 (no fixed steps), 12.5kHz FM, 500mW, using the Icom IC-4008M
Intra-Squad Radio - may end up in use in US airbases in Europe?

Common freq.s used for illegal NFM bugs 399.03 (ch C), 398.605 (A), 399.455 (B)
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Re: The Complete UK Radio Spectrum (0 Hz to 30 EHz)

Postby M3TSY » Thu Nov 22, 2012 12:09 am

-399.9=---UHF------------------
Mobile (French splits +/-10)

399.9=.. Satellite, to 400.15=
399.9=... Nav, to 400.05=
Russian Tsikada "Cicada" ex Transit (NNSS) ended 31.Dec.1996 (now NIMS)
with 150MHz (f/2.66.) and near 1067MHz (f*2.66.) i.e. 1066.752, 1066.58133

400.1 Standard freq. / time

400.15=..Met. sondes (WFM), Satellite, EPIRBs, to 406.1
401.65 Argos uplinks (Satellite system collecting environmental data, wildlife tracking etc)
402... medical implants, to 405
403.55 LPD (designed for South Africa)
406.0 Emergency Locator Transmitters
406.025 EPIRBs, 406.028 5W max (COSPAS-SARSAT) IR2042

406.1=.. MoD, to 420
Especially 408-410 : replacements for old VHF local nets
- assignments in 410-420 have been moved to below 410 or higher up UHF1

Channel Tunnel and Portal area (0797899) 25 kHz
416.65 417.475 417.8 419.175 424.875

406... Syledis nav. (positioning) system, to 449 - pulses - Annoying clicks on 70cms!

409.75.Chinese version of 446/FRS (500mW, 12.5kHz spaced FM), to 409.9875 (20 channels)
410=.. mobile civil TETRA, to 415= see 420

410=... reserved for Emergency services, to 412= with 420-422 (extended TETRA?)
412=... Arqiva Ltd & Airwave Solutions Ltd, to 414 (split +10: 422-424) Auctioned march 2006 (0310692)
414=... MOD, to 415= with 424-425

418.0 UK SRDs (centre of 200kHz alloc.) to be phased out
"Only SRD equipment certified to the R&TTE Directive before 31.Dec.2002
will be accepted for use in the UK until 31.Dec.2007."

Some forums list Helicopter on-board "PolyCon" 417.5, 417.525, 417.575
and 419.1125, 419.1375 Coastguard/Police. Also 449.5375, 449.5875, 449.6875 for SAR (RAF/Navy).

UHF1: 420 to 450 - military (shares with PBR), SRD, SAB
RadioLocation is primary at 420-430 and 440-450

Mil: EPLRS/SADL (Enhanced Position Location Reporting System/Situation Awareness Data Link)
freq hopped secure data (420-450).

There is a Euro plan (25-08) to re-organise 410-430: (boundaries)
420 ... Base, to 430 (split -10: 410-420)

420-422 (split -10) Sec. of State for Health, Crown Recognised Spectrum Access (0799272) 10,000 kHz bw

420=... was used for PAMR: national civil TETRA, to 430= (split -10: 410-420)
420.0125... 400 x 25kHz channels, to 429.9875 - 12.5kHz offsets (as with TACS) Dolphin

425-430 use started January 2000, Dolphin had 100 channels within 420-425 prior to that
"further allocations may be made... in the bands 415-420 MHz paired with 425-430 MHz" - Dec.1999

425.00625=
425.0125... PBR, see 445.5125 +20.5
(425.3125=...JFMG, to 425.5626= temp links - South West large towns only - 425.3375 to 425.5375 - 5 x 50kHz)
425.5125... PBR, see 440.0125 +14.5
(427.7625=...JFMG, to 428.0125= talkback - various areas - 427.775 to 428.0)
428.025... PBR, see 442.525 +14.5
429=... MoD

70cm
-430=-... Amateur 70cm band, to 440= [checked and updated 2012] (RSGB Bandplan 2012)
Secondary. Shared with MoD, PBR...
some Govt (some odd splits to other UHF1 sections) Nuclear Electric trunked NANRCS (countries)
Common amateur splits 1.6, 7.6, 9, 9.4 MHz

There are often moves afoot (thwarted so far) to reduce the band to 432-438,
and already some non-amateur use falls within 430-432 and 438-440.
USA 70cm band is 3x the size, 420-450! (ARRL Bandplans 2012)

430=... Amateur, all modes, to 432 - away from main band 432-435 and 435-438 satellite

430.0125.. Internet Voice Gateways (12.5kHz), to 430.075

430.025.. RU1 French/Neth. repeaters, to 430.375 (RU15) (split +1.6: 431.625-431.975)
"FRU2 Sp" 430.05 +9.7 :439.75
"FRU2 H" 430.0625 +9.4 :439.4625
"FRU4 XH" 430.1125 +9.4 :439.5125
"FRU6 H" 430.15 +9.4 :439.55
"FRU8 H" 430.2 +9.4 :439.6
"FRU9 H" 430.225 +9.4 :439.625
"FRU9 XH" 430.2375 +9.4 :439.6375
"FRU13 H" 430.325 +9.4 :439.725
"FRU14 H" 430.35 +9.4 :439.75
"FRU15 H" 439.775 -9.4 :430.375

430.4... DV repeaters in (see +9 :439.4), to 430.9125
430.8 input: see +7.6 :438.4

UK Repeaters 430.825-430.975 (split +7.6 :438.425-438.575) new in 2001, first=GB3PZ
430.825 RU66 :438.425
430.8375 RU67 :438.4375
430.85 RU68 :438.45
430.8625 RU69 :438.4625
430.875 RU70 not available
430.8875 RU71 :438.4875
430.9 RU72 :438.5
430.9125 RU73 :438.5125
430.925 RU74 :438.525
430.9375 RU75 :438.5375
430.95 RU76 :438.55
430.9625 RU77 :438.5625
430.975 RU78 :438.575

430.990=.. Digital, to 431.9=
431.0...French 'transponders', to 431.15 (25kHz) (and 433.4-433.575)
431.075 Voice Gateways, to 431.175 (12.5kHz)

431.2125.. new IARU repeaters in, to 431.375 (see +1.6 :432.8125)

431-432MHz not available within 100km radius of Charing Cross, London

431=...some PBR mobile (London), to 432.0625= bases around 17MHz higher at 448 to 449.38 region
430.5 single PBR Rosewood Estates Limited (0296264) 25kHz
431.4875= to 431.5125= -unused for PBR- (from OFCOM)
431.6375= to 431.6625= -unused for PBR-
431.8375= to 431.8625= -unused for PBR-
431.8875= to 431.9125= -unused for PBR-
432= to 432.0375= -unused for PBR-
432.0375= to 432.0625= single PBR 432.04375 & 432.05625 Rosewood Estates Limited (0296264)

The public OFCOM doc also reveals the following PBR pairings:
434.025--439.775
436.025--443.650
437.025--443.775
437.0625-444.15
438.0625-444.75
439.0625-445.0625

432.0=...Narrow band
432=... EME CW/MGM... (MGM=Machine Generated Mode)
432.025.. CW/MGM... (432.05 CW centre of activity)
432.088 PSK31
432.1... SSB,CW,MGM...
432.2 SSB centre of activity
432.35 Microwave talkback
432.37 FSK441 calling
432.4=... Beacons...
432.5=... SSTV, transponders in...
432.6=... transponders out, to 432.8
432.625 Digital, & 432.65, 432.675
432.7 Fax

432.8=... Beacons (UK)... due to move to 432.4...

To be replaced by new IARU repeater channels :
432.8125 RU225 to 432.975 (RU238) (split -1.6: 431.2125-431.375)

433.0... FM channels, to 435=
433.025.. RU17 French repeater channels, to 433.2 RU24 (split -1.6: 431.425-431.6)

Shared with European 10mW LPD transceivers on 433.075 - 434.775 (69 x 25kHz channels) in ISM Band
The first 39 channels below 434.04 don't appear to be legal in the UK (OFCOM regs.)

UK repeaters 433.0-433.375 (split +1.6: 434.6-434.975) started in 1976 (UK)
433.0 RB0 :434.6
433.025 RB1 :434.625
433.05 RB2 :434.65
433.075 RB3 :434.675 LPD-1
433.1 RB4 :434.7 LPD-2
433.125 RB5 :434.725 LPD-3
433.15 RB6 :434.75 LPD-4
433.175 RB7 :434.775 LPD-5
433.2 RB8 :434.8 LPD-6
433.225 RB9 :434.825 LPD-7
433.25 RB10 :434.85 LPD-8
433.275 RB11 :434.875 LPD-9
433.3 RB12 :434.9 LPD-10
433.325 RB13 :434.925 LPD-11
433.35 RB14 :434.95 LPD-12
433.375 RB15 :434.975 LPD-13

-Amateur use-
433.4 SU16 U272 LPD-14
433.425 SU17 U274 LPD-15
433.45 SU18 U276 LPD-16 DV calling
433.475 SU19 U278 LPD-17
433.5 SU20 U280 LPD-18 Amateur FM calling
433.525 SU21 U282 LPD-19 GB2RS news
433.55 SU22 U284 LPD-20 rally talk-in
433.575 SU23 U286 LPD-21

433.6...Data/digital, "emergency priority"...
433.6 U288 LPD-22 RTTY
433.625 LPD-23 Digital
433.65 LPD-24 Digital
433.675 LPD-25 Digital
433.7 LPD-26 Emergency/Events, Fax
433.725 LPD-27 Emergency/Events
433.75 LPD-28 Emergency/Events
433.775 LPD-29 Emergency/Events
433.8 LPD-30 Digital...
to
433.95 LPD-36 Voice Gateways
433.975 LPD-37 Voice Gateways
434.0 LPD-38 Voice Gateways
434.025 LPD-39 Voice Gateways
--434.04= OFCOM rules appear to approve LPD in the UK from ch 40 onwards --
434.05 LPD-40 Voice Gateways
434.075 LPD-41
to (clear & legal LPD channels) LPD-44 calling (434.15)
434.35 LPD-52
434.375 LPD-53 Emergency Repeaters in (-1.6 :432.775 out)
434.4 LPD-54
434.425 LPD-55
434.45 LPD-56
434.475 LPD-57 Voice Gateways
434.5 LPD-58 Voice Gateways
434.525 LPD-59 Voice Gateways
434.55 LPD-60
434.575 LPD-61
434.6 LPD-62 RB0 repeater input
to
434.775 LPD-69 RB7 repeater input
434.8 RB8 in
to
434.975 RB15 in

433.92 center of problematic Euro SRD/ISM band (433.05 - 434.79) (32 x 13.56 band)
i.e. vehicles immobilised by ham transmissions *grin*
May be used for LPD and 10mW telemetry from models
SRDs must have 10% Duty Cycle or less after end of 2005
Advanced TV Research (audience figures) domestic boxes : 433.52, 434.02 or 434.52 (100kHz FSK)

434.0625 ex Experimental MPT1327 Base TX Ch 1-3, to 434.0875 removed from 2012 plan

434.6... Euro. repeaters, to 434.975 (split -1.6: reverse of UK) RU0 to RU15


435=... Satellite, to 438=
Current operational frequencies (AMSAT) [2012]

Various public sources (including PROMA's "The Art of Event..") report the following :
435.625 435.725 435.750 435.775 Cadets, RAF Reserves


438=... top 2 MHz, to 440= mainly used for FM channels and ATV
438.025 Digital, to 438.175
438.2... Euro. repeaters, to 439.475 (split -7.6 :430.6-431.875) Germany/Swiss/Austria/Spain
438.4 Emergency/Event repeater (-7.6 :430.8)
438.425..UK repeaters in, to 438.575 (see -7.6 :438.425-438.575)
438.6125 DV calling D-Star

439.4... DV repeaters (split -9 :430.4...) D-Star
439.4000 DVU32
439.4500 DVU36
439.4625 DVU37
439.4875 DVU39
439.5125 DVU41
439.5375 DVU43
439.6000 DVU48
439.6125 DVU49
439.6375 DVU51
439.6625 DVU53
439.6875 DVU55
439.7000 DVU56
439.7125 DVU57
439.7375 DVU59
439.9125 DVU73

439.6=.. Digital...
439.9875 POCSAG paging (amateur)
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Re: The Complete UK Radio Spectrum (0 Hz to 30 EHz)

Postby M3TSY » Thu Nov 22, 2012 12:10 am

-440= ---

Who shares the ham band? Well, the military make good use of it (base comms etc), seeing as the hams
don't exactly use it to the full (and aren't primary users anyway)...
DERA perhaps (just speculation...) - now QinetiQ/DSTL.
In July 1999 use of the following was banned by OFCOM for a week, via letter, web-site & GB2RS:
430.650 439.450
430.700 439.575
430.750 439.625
430.825 439.825
430.875 439.875
430.975 439.925
430.400 439.350
430.525 439.400

"The civil radiolocation service operates on 432·5, 438·0, and 445·25
in accordance with the Oslo Agreement, 1983"

440
UHF1 PBR limited mainly to large cities - London, Birmingham, Manchester, Liverpool, Glasgow, Edinb., Leeds,
Aberdeen, Bradford, Derby, Halifax, Leicester, Middlesbro, NewCastle, Preston, Sheffield, Warrington,
Coventry, Bristol, Cardiff, Swansea, Newport. 12.5kHz channels.

Channel xxx = (freq - 440) / 0.0125 freq = (Ch number x 0.0125) + 440 (throughout 440-450)
except additional 0.00625 for 448:431 channels

440.0125.PBR, to 442.250 (split -14.5: 425.5125-427.750) RAM data

440.325 on-site 7 (:425.825) ch 26
440.35 on-site 8 (:425.85)
440.375 on-site 9 (:425.875)
440.4 H.O. + 440.45, 442.225
440.5375 (ex demo/parking :426.0375)
440.9 on-site 16 (:426.4)
440.925 on-site 17 (:426.425)
440.95 on-site 18 (:426.45)
441.1125 on-site 20 (:426.6125)
442.25 CBS (:427.75) ch 180

442.2625=...JFMG, to 442.5125= Temporary location TalkBack - various areas
442.275 to 442.500

442.525..PBR, to 443.4875 (split -14.5: 428.025 -428.9875) 13 JRC ch.
442.525 on-site 26 (:428.025) ch 202
442.5375 CBS (:428.0375)
442.55 on-site 27 (:428.05)
442.575 on-site 28 (:428.075)
442.6 on-site 29 (:428.1)
442.625 on-site 30 (:428.125)
442.65 on-site 31 (:428.15)
442.775 on-site 39 (:428.275)
442.875 W.A. shared 43 (:428.375)
443.45 on-site 51 (:428.95)
443.475 on-site 53 (:428.975)
443.4875 CBS (:428.9875) ch 279

443.5 ... MoD (some Eurotunnel use at 444 split +10)

444.3375 Tag Farnborough Airport Ltd (0276080) (:449.725) 12.5kHz

KDR (Swedish/Norway Kort Distanse Radio) 1W handhelds
444.6, 444.65, 444.8, 444.825, 444.85, 444.975

445.2 ... Civil TETRA DMO Direct Mode (single), to 445.3 1W ( DEC(01)21 )
(447.3-447.4 was alternative proposal)

445.5125.PBR, to 445.9875 (split -20.5: 425.0125-425.4875)
445.5125 CBS (:425.0125) ch 441
445.725 on-site 57 (:425.225)
445.800 on-site 60 (:425.3)
445.975 W.A. shared 62 (:425.475)
445.9875 CBS (:425.4875) ch 479


446.0... PBR, to 446.4 on-site single : channels 1 to 33 (12.5kHz)

PMR 446
446.006..PMR446 (Euro SRBR), to 446.093 (8x 12.5kHz - within 446-446.1, 6.25kHz offsets)
Introduced in 1999 500mW licence exempt. Status in Europe
446.00625 1 (446.005 to nearest 5kHz, 1.25kHz error)
446.01875 2 (446.020)
446.03125 3 (446.030)
446.04375 4 (446.045)
446.05625 5 (446.055)
446.06875 6 (446.070)
446.08125 7 (446.080)
446.09375 8 (446.095)

446.1=...DMR Digital PMR446, to 446.2= October 2005, ECC/DEC/(05)12, 4-level FSK, 3.6kbit/s AMBE+2 voice codec
446.103125 16 dPMR channels, 6.25kHz spaced (4800bps), to 446.196875 FDMA
OR
446.10625 8 DMR channels, 12.5kHz spaced (9600bps), to 446.19375 DMR Tier I, TDMA 2-slots
(Tier I is the licence-free (446) equivilant of the licenced VHF/UHF Tier II. Tier III = trunked)

Some PMR446 radios may be expanded to use extra channels from 445.88125 to 446.24375,
and some Binatones have a 'secret' channel 9 of 447.005

446.425=... JFMG, to 446.5125= all areas
446.45 PBR (single) Babcock Support Services Limited (0257953)
446.5125=.. JFMG, to 447.5125= various areas, links, comms, talkback simp. and duplex (base)
Links 446.5375 to 447.4875, 50kHz spaced

447.525..PBR, with gaps to 449.4875

447.525 PBR single...
447.65 on-site 34-37, to 447.6875
447.7 ? (non PBR)
447.7125 on-site 38
447.725 on-site 39
447.7375..(non PBR), to 447.7625
447.775 on-site 40
447.7875 on-site 41
447.8 PBR
447.8125 on-site 42
447.825 on-site 43
447.8375.PBR, to 447.9875

448=... PBR, to 449=

London only (split -17: shared with amateur 431-432) 6.25kHz offsets
numbering of 80 channels:
448.00625 CBS (:431.00625) ch 640
448.99375 CBS (:431.99375) ch 719

boundaries, splits, rounded carrier ranges:
448.0000= to 448.3375= -17: 431.0000= to 431.3375= (27 ch) .006 - .331
448.3375= to 448.4875= split to UHF2 (12 ch)
448.34375 CAB-S mobile channels 1-12, to 448.48125 (see +6.5: 454.84375..)
448.4875= to 448.525= -17.5: 431.3375= to 431.375= (3 ch) .493 - .518
448.525= to 448.575= single (4 ch) .531 - .568
448.575= to 448.6375= -17: 431.575= to 431.6375= (5 ch) .581 - .631
448.6375= to 448.6625= single (2 ch) .643 & .656
448.6625= to 448.8375= -17: 431.6625= to 431.8375 (14 ch) .668 - .831
448.8375= to 448.8625= single (2 ch) .843 & .856
448.8625= to 448.8875= -17: 431.8625= to 431.8875= (2 ch) .868 & .881
448.8875= to 448.9125= single (2 ch) .893 & .906
448.9125= to 448.9375= -17: 431.9125= to 431.9375= (2 ch) .918 & .931
448.9375= to 448.9625= single (2 ch) .943 & .956
448.9625= to 449.000= -17: 431.9625= to 432= (3 ch) .968 - .993

London only : some -17.5 approx splits to middle of 431-432
449.0125 from +6.5 ch13
449.025---431.38125 and from +6.6 ch19
449.0375 from +6.5 ch18
449.05----431.39375
449.0625--431.40625
449.075---431.41875
449.0875 from +6.5 ch14
449.09375= to 449.11875= Paging : 449.10625 Traffic info
449.125 single
449.1375--431.43125
449.15----431.44375
449.1625 from +6.5 ch15
449.175 from +6.5 ch16
449.1875 from +6.5 ch17
449.2-----431.45625
449.2125--431.46875
449.225---431.48125
449.2375--431.51875
449.25----431.53125
449.2625 single
449.275 single
449.2875 single
449.3 -no PBR-
449.3125 Simple UK Light (was UK General) (2002)
449.325---431.54375
449.3375--431.55625
449.35----431.56875
449.3625--431.94375
449.375---431.95625
449.3875 single
449.4 Simple UK Light (was UK General) (2002)
449.4125 single...
449.475 Simple UK Light (was UK General) (2002)
449.4875 single

449.5=... MoD

Euro Recommendation T/R 75-03 (Nice 1985) set 449.5-450 as a prefered band for UK use by
visiting foreigners for temporary PMR use, but 75-03 has not been implemented by the UK


449.75=.. Space ops/research, to 450.25= Earth-to-Space

(Czech licence-free two-way 448.490, 448.570, 448.610, 449.770, 449.810 up to 5W)

450
UHF2: 450= to 470= - emergency services, PBR, Paging, Telemetry, SRD, SAB

PBR mobile segments may contain single frequency simplex use. 12.5kHz channels. No CBS.
Data systems (RAM/Hutchinson - 14 channel pairs, 17 in UHF1) [Hear it here!] Transcomm Mobitex
UHF PMR started in the early 1960s

450-451 used to be used for Links, split +14: 464-465
other old link pairings in UHF2 used splits of 5.5, 6.5, 12.5 MHz
457-458.5, 460.5-461.5, 462.5-464, 467-470 were used.
Links have moved up the spectrum as technology has improved.

There is a Euro plan (25-08) to re-organise 450-470: (boundaries)
460 ... Base, to 470 (split -10: 450-460)

-------
OFCOM planned to find the best way to realign from 2005-2010

Keep 457/467 Marine, 466.075 paging, 458.5-459.5 SRD. All single to move to 440-450
1) 454 Paging : 440-450
2) 456 PMR : 464
3) 456/462 single PMR : 440-450
4) 457.5 Scanning Telemetry : 461.5
5) residual 999 : 466
6) 455 CAA PMR : 467
7) PMSE : 465
8) 453/460 single PMR : 440-450
9) 453 PMR : 463
10) 461 single PMR : 440-450
11) PMSE : 460
12) PMSE : 467

New Plan (approximate segments)
460.0=...PMSE
460.4=...
461.5=...Scan.Tel
462.5=...
463.32...PMR
464.84...PMSE
465.4375...
466.38...Emergency Services, to 466.92
466.937..CAA PMR
467.25=..PMSE
468.08... (468.5-469.5 in reserve due to SRD at -10)

Gaps left for future TETRA, etc.

There were so many objections, the plan was abandoned!
-------

450=... H.O. - Emergency Services and HMPs, to 453= (with 464-467.25) typical splits +13.9 or +14 (before TETRA)
(started mid 1966 as 451-452, then expanded up to 453, then down by 1MHz to include 450-451 1987-jul.1989)
25kHz channels until 1999, then used some 12.5kHz
452.0-452.275 split 14 : 466.0-466.275 used for ROC/UKWMO links in 1970s/80s

Dredging International (0734629) 12.5kHz single
450.1 450.4 450.65 450.9 451.45 464.1 464.4 464.65 464.8 465.0 466.15
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Re: The Complete UK Radio Spectrum (0 Hz to 30 EHz)

Postby M3TSY » Thu Nov 22, 2012 12:13 am

453.00625

453.00625= boundary for start of UHF2 PBR
453.0125 PBR single, or dual with mobile at 461.275
453.025..PBR, to 453.9875 dual 12.5kHz (split +6.5: 459.525-460.4875)

..and 25kHz single:
453.025----459.525 on-site 1 dual
453.0375 single (459.5375 = H.O.)
453.050----459.55
453.0625---459.5625 on-site 2 dual
453.075 on-site 31 459.575 on-site 1
453.0875---459.5875 on-site 3 dual
453.100----459.6 on-site 4 dual
453.1125---459.6125 on-site 5 dual
453.125 on-site 32 459.625 on-site 2
453.1375---459.6375 BT Plc (0075934)
453.150----459.65
453.1625---459.6625 BT Plc (0075934)
453.175----459.675 on-site 7 dual
453.1875---459.6875 BT Plc (0075934)
453.200----459.7
453.2175---459.7175 BT Plc (0075934)
453.225 on-site 33 459.725 on-site 3
453.2375---459.7375 BT Plc (0075934)
453.250----459.75 W.A. shared 4
453.2625---459.7625 BT Plc (0075934)
453.275----459.775
453.2875---459.7875 BT Plc (0075934)
453.300 on-site 34 459.8 on-site 4
453.3175---459.8175 BT Plc (0075934)
453.325----459.825
453.3375---459.8375 BT Plc (0075934)
453.350 on-site 35 459.85 on-site 5
453.3625---459.8625 BT Plc (0075934)
453.375----459.875 on-site, many hospitals
453.3875---459.8875 BT Plc (0075934)
453.400 on-site 36 459.9 on-site 6
453.4125---459.9125
453.425 on-site 37 459.925 on-site 7
453.4375---459.9375 on-site
453.450 on-site 38 459.95 on-site 8
453.4625---459.9625
453.475----459.975 on-site
453.4875---459.9875
453.500----460.0 on-site 8 dual
453.5125---460.0125
453.525 on-site 39 460.025 on-site 9
453.5375---460.0375
453.550----460.05 National 4 dual (rail)
453.5625---460.0625
453.575 on-site 40 460.075 on-site 10
453.5875---460.0875 Tesco (0298142)
453.600----460.1 on-site 9 dual
453.6125 rail 453.6125---460.1125 rail
453.625 on-site 41 460.125 on-site 11
453.6375---460.1375 M&S (0284510)
453.650 on-site 42 460.15 on-site 12
453.6625---460.1625 BT (0297497)
453.675 on-site 43 460.175 on-site 13
453.6875 Demo ---460.1875
453.700
453.7125---460.2125
453.725 on-site 44 460.225 on-site 14
453.7375---460.7375 tech. assigned - on-site?
453.750----460.25 on-site 11 dual
453.7625---460.2625
453.775----460.275 tech. assigned - on-site?
453.7875---460.2875
453.800----460.3 wide area
453.8125---460.3125
453.825----460.325 tech. assigned - on-site?
453.8375---460.3375 tech. assigned
453.850----460.35 wide area
453.8625---460.3625
453.875 on-site 45 460.375 on-site 15
453.8875---460.3875
453.900----460.4 National 5 dual (rail)
453.9125---460.4125
453.925----460.425 on-site 14 dual
453.9375---460.4375
453.950 on-site 46 460.450 on-site 16
453.9625---460.4625 wide area
453.975----460.475 W.A. shared 7
453.9875---460.4875

London 2012 Olympic Delivery Authority, dual channels
453.4875 453.5375 453.7875 453.8625 453.8875 453.9375
456.3625 456.4375 456.5125 456.5875 456.6625 456.7125 456.7625 456.8125 456.8875 456.9375

454.025 ... Paging and some PBR, to 454.825

New (3.apr.2000) On-site Religious Observance Radio service i.e. "Call-to-prayer"
454.39375 454.40625 454.79375 454.80625 ( +/- 6.25kHz around 454.4 & 454.8 )
10 min.s max. broadcasts - follow-ons must wait four times the length of the
preceding message. 3km range, maybe more.

454.06875 Leicester City Council (0250278) 12.5kHz
454.08125 Leicester City Council (0250278) 12.5kHz
454.15 dual 25kHz (split +10: 464.15) i.e. Airradio
454.3 dual 25kHz (split +10: 464.3) i.e. Airradio
454.30625 Leicester City Council (0250278) 12.5kHz
454.375 dual 25kHz (split +10: 464.375) i.e. Airradio
454.4 On-site Religious Observance Radio service
454.425 Parking/Demo/hire/trunked (split +7: 461.425)
454.45 JRC (:460.825)
454.5 Divided into 2x 6.25 channels Business Radio (Area Defined) (split : 460.7625)
454.496875 Office of Communications (:460.759375) 6.25kHz nationwide (0797748)
454.503125 Office of Communications (:460.765625) 6.25kHz nationwide (0797748)
454.525 dual 25kHz (split +10: 464.525) i.e. Airradio
454.55 JRC (:460.85)
454.575 dual 25kHz (split +7: 461.575) i.e. Airradio
454.6 dual 25kHz (split +7: 461.6) i.e. Airradio
454.625 dual 25kHz (split +7: 461.625) i.e. Airradio
454.625 JRC (:460.875)
454.65 dual 25kHz (split +7: 461.65) i.e. Airradio
454.675 JRC (:460.975)
454.7 single 25kHz
454.7 dual 25kHz (split +7: 461.7) i.e. Airradio TETRA
454.725 dual 25kHz (split +7: 461.725) i.e. Airradio
454.75 dual 25kHz (split +7: 461.75) i.e. Airradio
454.775 dual 25kHz (split +7: 461.775) i.e. Airradio
454.8 On-site Religious Observance Radio service
454.81875 Leicester City Council (0250278) 12.5kHz
454.825 single

454.8375=
454.84375..."CAB Secure" (Rail CAB-S or CSR) ch 1-12, to 454.98125 (split -6.5: 448.34375-448.48125)
1 454.84375:448.34375 12.5kHz spaced with 6.25kHz offsets
2 454.85625:448.35625 control (data)
to
12 454.98125:448.48125

13 455.5125:449.0125 (-6.5)
14 455.5875:449.0875
15 455.6625:449.1625
16 455.675 :449.175
17 455.6875:449.1875
18 455.5375:449.0375
19 455.625 :449.025

CSR/NRN replaced by GSM-R (921-925MHz) between 2007 and 2013.

454.85...PBR, to 454.975

454.9875=...JFMG, to 455.4625= short term links and location talkback base (with 468.018-468.506) (+airborne)


455.475..PBR, to 455.85 (split +5.3/5.5/5.65: 460.775-461.225) was mostly Airports (CAA), now various on-site too
some channels were once split -6.5: 449.0375-449.1875 - as is the current CAB-S system

single or dual +5.3 +5.5 +5.65
455.475 --- 460.775
455.4875--- 460.7875
455.5 --- 460.8 461.0
(455.5125 13)
455.525 --- 461.175
455.5375--- 461.1875 (and CAB-S 18)
455.55 --- 460.85 461.2
455.5625--- 460.8625 461.2125
455.575 --- 460.875 461.075 461.225
(455.5875 14)
455.6 --- 460.9
455.6125--- 460.9125 461.1125
455.625 --- 460.925 461.125 (and CAB-S 19)
455.6375--- 460.9375
455.65 --- 460.95
(455.6625 15)
(455.675 16)
(455.6875 17) (was once paired +4.0: 459.6875)
455.7 --- 461.0
455.7125--- 461.0125
455.725 --- 461.025 461.225
455.7375--- 461.0375
455.75 --- 461.05
455.7625--- 461.0625
455.775 --- 461.075
455.7875--- 461.0875
455.8 --- 461.1
455.8125--- 461.1125
455.825 --- 461.125
455.8375--- 461.1375
455.85 --- 461.15

455.8625 ?
455.875 ?
455.8875... H.O., to 455.9875 Fire Service on-site ("fireground") etc.
455.9875 Inter Service Liason, ch 69 (as ch 70 with 462.5375)


456.0... PBR, to 456.9875 dual 12.5kHz (split +5.5: 461.500-462.4875) and single:
456.0 ---461.5 National 18 dual
456.0125---461.5125 STH/demo/parking Trunked
456.025 ---461.525 on-site 15 dual
456.050 ---461.550 W.A.Shared 8

456.0625---461.5625 JRC
to
456.3125---461.8125 (21 ch)

456.2625---461.7625 National 35 dual
456.3375---461.8375 STH/demo/parking Trunked
456.35 ---461.85 on-site 16 dual
456.375 ---461.875 National 38 dual
456.3875---461.8875 STH or either singly
456.4 ---461.9 National 39 dual
456.4125---461.9125 National 40 dual
456.425 ---461.925 National 41 dual
456.4625---461.9625 STH/demo/parking Trunked
456.475 ---461.975 W.A.Shared 9
462.050 ex UK General
456.5625---462.0625 STH/demo/parking Trunked
456.575 on-site 47 462.075 on-site 25
456.600 ---462.100 on-site 18 dual
456.625 on-site 48 462.125 on-site 26
456.650 ---462.150 on-site 19 dual
456.675 ---462.175 on-site 20 dual
456.6875---462.1875 STH/demo/parking Trunked
456.725 on-site 49 462.225 on-site 27
456.775 on-site 50 462.275 on-site 28
456.800 on-site 51 462.300 on-site 29
456.825 ---462.325 on-site 23 dual
456.875 ---462.375 on-site 24 dual
456.8625 STH (ex RQAS) 462.3625 STH
462.375
456.900 on-site 52 462.400 on-site 30
456.925 ---462.425 demo/parking or either singly
456.9625---462.4625 STH/demo/parking Trunked
456.975 PBR 462.475 STH
456.9875---462.4875 STH (or 456.9875 singly)

CIBS 456.975 was the Coach and Independent Bus Sector emergency 5W channel (til 31.12.04)

457.0= ... H.O. (some split +5.5), to 457.25=
Fire Service (source : PROMA) Incident/BA channels

457.256 ... JFMG short term location talkback base, to 457.468 (with 467.293-467.531) 6.25 kHz offsets
457.475=... H.O. (Fire)
457.4875 ch 7

457.5=.. Scanning Telemetry, to 458.5= (split +5.5: Outstations at 463-464)
457.50625-458.49375 Scanners, 12.5kHz channels 1 to 80 (i.e. 6.25kHz offsets) - with 463.00625-463.99375

457.525 ... Marine on-board comms, to 457.575 (may be split +10) International
2W max. Was 25kHz spaced, WRC-97 added 2 x 12.5kHz channels at 457.5375 and 457.5625
For USA/Can./Philippines territorial waters, 25kHz, an extra 457 channel and a different split:
457.525 to 457.6 (split +10.225: 467.75-467.825)
-Simp.-Rptr-
457.525 1 D G
457.5375 O K
457.550 2 E H
457.5625 P L
457.575 3 F J
(457.600 US: R4)


458.5
458.5=.. Telemetry, SRD, Model Control, Local Comms, to 459.5=

458.5=.. Telemetry, SRD, to 459.1=

458.5=... Telemetry, Telecommand - Industrial/Commercial - 500mW, to 458.95
458.825 Fixed Alarms 100mW
458.8375 Portable Alarms 100mW
458.9 Vehicle paging 100mW
458.9625=..Medical/Bio, to 459.1=

458.525..model control, to 459.475 - channels 1 to 39

458.85.. On-site paging / local comms, to 459.475 (25kHz)
459.0 some single use

"Simple Site Light" (2008) cheaply licensed 2W Voice/Paging like "Simple UK Light" (ex "UK General")
but allowing base stations and 25kHz b/w. Shared with r/c models, but that's low power - CTCSS deals with it.
459.05
(459.075 why the gap?)
459.1
to (25kHz steps)
459.475

Simple Site Light replaced "self-select" one-way paging and the "Local Communications" licence that paired:
459.125, .15, .25 .35 .45 : 160.0 .025 .05 .075 .1 or 164.2 (any pairings)
459.175 to 459.3 (except 459.25) : 159.6375-159.7 (not .6875) or 164.2 (any pairings)
459.325 : 161.0125
459.375 : 161.0375
459.400 : 161.0625
459.425 : 161.0875
459.475 : 161.1125

Simple Site Light users may use 459 Single, or make their own pairings from :
26.2375 26.410 26.4375 26.4625 26.545 26.588 26.6155 26.6695 26.7255 26.8155 26.8655 26.865
and the above 459 channels (459.05 - 459.475)
Paging and Data:
49.0 - 49.4125, 49.4875,
159.6375 - 159.675, 159.7, 161.0 - 161.11250, 164.2
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