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 » Thu Nov 22, 2012 12:14 am

459.4875=

459.4875=.. H.O. (.5 .5125 .5375) ex Air ambulances
459.525 ... PBR, see 453.025
460.500=... H.O., to 460.75= Some prisons. Was used for air traffic control links, to +6.5: 467...
460.7625 PBR, see 454.5
460.775 ... PBR, see 455.475 (and some 454)

461.2375... JFMG, & 461.25 (split +7.2875: 468.525 & 468.5375)


461.2625.PBR and SRBR, to 461.4875 (SRBR until 31.Dec.2003)
461.2625 PBR: Call-Systems Technology Ltd (0302545) - was SRBR
461.275 mobile - base=453.0125
461.2875 UK General 1
461.3 Alarmnet Limited (0789582) - was SRBR paging (and demo/parking for that) until end of 2006
461.3125 on-site 17
461.325 on-site 18
461.3375 on-site 19
461.35 on-site 20
461.3625 on-site 21
461.375 UK General 2
461.3875 on-site 22
461.4 on-site 23
461.4125 special events
461.425 mobile side :454.425 (was special events)
461.4375 special events
461.450 UK General 3
461.4625 on-site 24
461.475 PBR: Call-Systems Technology Ltd (0302545) - was SRBR
461.4875 PBR: Call-Systems Technology Ltd (0302545) - was SRBR

461.500 ... PBR, see 456
462.49375= boundary for end of UHF2 PBR

462.500=... H.O., to 462.75=
mobile for Fire channels 2,5,70 (from 455/457)

(US GMRS/FRS handies - and white/black/orange "dot" handhelds)
GMRS ch 1 to 8 at 462.55 to 462.725 (25kHz steps) with mobile at +5MHz
FRS ch 1 to 7 at 462.5625 to 462.7125 (25kHz steps) also used for GMRS single
& ch 8 to 14 at 467.5625 to 467.7125 (5MHz above ch 1 to 7)
462.550 G1
462.5625 F1
462.575 G2
462.5875 F2
462.600 G3
462.6125 F3
462.625 G4
462.6375 F4
462.650 G5
462.6625 F5
462.675 G6
462.6875 F6
462.700 G7
462.7125 F7
462.725 G8
F8-F14: see 467.5625...

462.756 ... JFMG fixed sites talkback (split +6.7375/+6.875: 469.493-469.868) 6.25kHz offsets
463.000=... ST, see 457.5=
464.000=... H.O., to 467.25= see 450.025=
(464.5 & 464.55 USA brown and yellow "dot" unlicensed handhelds)
466.05 Paging
466.075 Paging

467.25=..(managed by OFCOM), to 469.875= (mostly JFMG)
467.2625=...JFMG... links and talkback (+airborne)
467.275 ... see 457.25

467.525 .. Marine on-board, to 467.575 single, or dual: see -10 NOT USA/Can./Philippines
467.75... USA/Can./Philippines Marine on-board, to 467.825 (split -10.225: 457.525-457.6)
-Simp.-Rptr-
467.525 4 A G
467.5375 M K
467.550 5 B H
467.5625 N L (is also FRS-8)
467.575 6 C J
(467.750 US: M1)
(467.775 US: M2)
(467.800 US: M3)
(467.825 US: M4)

467.55... USA FRS (and GMRS repeaters in), to 467.725 - see 462.55
467.5625 F8 & Marine
467.5875 F9
467.6125 F10
467.6375 F11
467.6625 F12
467.6875 F13
467.7125 F14

(467.7625 USA J-dot unlicensed handhelds)
(467.8125 USA K-dot)
(467.85... USA silver,gold,red,blue "star" radios, to 467.925

467.6... Euro railways T/R 22-01 (Malaga-Torremolinos 1975), to 468.1 (split -10) 25kHz ch

468.0125 single.
468.018 ... JFMG, to 468.5375, see 455 and 461.237 (includes Special Event PMR)
469.493 ... fixed sites, to 469.868 - see 462.756

469.875=..H.O. England & Wales

-470=--------------------------
BROADCASTING Primary, Land Mobile as secondary (PMSE managed by JFMG).
TV in Bands IV and V, arranged in the UK as 8MHz channels from 21 to 69 ending at 862 MHz.
Exact definitions vary for Bands 4 and 5, with the gap in the middle at ch 36.

Ch 69 was never used for TV, just PMSE, which also makes use of spare channels around the band per location.
One extra 8MHz UK channel 862-870 is known as channel 70, used for SRD, especially 863-865 mics.

UK DSO (Digital Switch Over from analogue) from Nov 2008 (Selkirk, Border region) to Oct 2012 (N Ireland).
Freeview HD launched in April 2010.

Present (2012) situation :
DTTV - Digital Terrestial TV, COFDM - 2k (1705 carriers, 7.61MHz bw) or 8k (6817)
Launched (UK) as ONdigital 15 Nov 1998, changed to ITV Digital 11 July 2001, then Freeview 30 Oct 2002.
Radar has been removed (July 2009) from around channel 36, and Radio Astronomy protection (ch 38), so
the entire ch 21-69 was free for Broadcasting and PMSE until the "800 MHz band" was given to IMT.

Mobile Broadband intrusion :
Switchover planned to release channels 31-40 (600MHz Band) and 63-68 (800MHz Band) for Ofcom to re-license,
as WRC 2000 had decided to re-allocate from 806 to 960 MHz to UMTS. But seven years later, WRC-07 then
allocated 790-862MHz (ch 61-69) to mobile services throughout Region 1 (primary) as from 17.jun.2015
(in some CEPT countries it is possible to utilise this band for mobile services before 2015).
An "800 MHz Clearance" followed (2012 onwards, during DSO), to clear ch 61 & 62, and move PMSE from 69 to 38,
as a European standard 800MHz FDD channel plan was drawn up for 4G mobile broadband at 790-862.

Offsets - may be used to alleviate co-channel interference.
DTV may have negative or positive offsets of 1/6th MHz (166.666kHz) on any individual multiplex.
With Analogue TV, this involved 'offset units' of 1/12 of the Line Frequency (15.625kHz UK).
UK TV sound often appeared to be on xxx.225 or xxx.275 instead of the nominal xxx.250
due to the use of 20/12 offsets (26.041666 kHz).
With US NTSC it was approximately 10kHz, in France somewhere around 37.5kHz (29ou 37.760416? 30ou 39.0625?).
(no offsets used on analogue radio, but DAB ensembles may be shifted by some steps on the 16kHz raster)

In France the same DVB-T standard is used, so you may TV DX with a UK TV. Their "TNT" started 31.mar.2005,
and HD launched 30.oct.2008. French ASO (Analogue Switch Off) ran from November 2009 to November 2011.


bound.s--ch
470-478 21 476.425.. Australian/NZ UHF CB (if any used in the UK), 80 x 12.5kHz, to 477.4125
478-486 22
486-494 23
494-502 24
502-510 25
510-518 26
518-526 27
526-534 28
534-542 29
542-550 30
550-558 31 *7* "600 MHz Band" start (550-606)
558-566 32 *7* 'Digital dividend' from DSO, likely to be awarded to 3 more TV 'layers' (7 to 9)
566-574 33 *7*
574-582 34 *8*
582-590 35 *8*
590-598 36 *8*
598-606 37 *9* "600 MHz Band" end
606-614 38 UK PMSE (replaced ch69, confirmed 30.Jun.09) available 1-1-2012 when R. Astronomy (610) protection ended
614-622 39
622-630 40
630-638 41
638-646 42
646-654 43
654-662 44
662-670 45
670-678 46
678-686 47
686-694 48
694-702 49
702-710 50
710-718 51
718-726 52
726-734 53
734-742 54
742-750 55
750-758 56
758-766 57
766-774 58
774-782 59
782-790 60
------------ End of TV Band after DSO and 'DTT clearance' ---------

790-798 61 * "800 MHz Band" start (790-862)
798-806 62 *
806-814 63 *
814-822 64 *
822-830 65 * (824-849 & 869-894 are blocked on RX equipment sold in USA)
830-838 66 *
838-846 67 *
846-854 68 *
854-862 69 * "800 MHz Band" end - UK PMSE til end 2012. Access til at least 1.jul.2012, 1-Oct-12 Lond, NI, Tyne Tees
(862-870 70 remains SRD)

Image

800 MHz band plan for 4G LTE Mobile
FDD (Freq. Division) of 2 x 30MHz (each 30 divided into 6 x 5MHz), 41MHz split

790-791 (1MHz guardband at ch61)
791-821 Base - Downlinks DL1 to DL6
821-832 11MHz "Duplex Gap" to be used (from 1-1-2013) for PMSE, 1mW ERP without licence, or:
823-826 licenced, 20mW EIRP (RIR1009-18)
826-832 licenced, 100mW EIRP (RIR1009-13)
832-862 Mobile - Uplinks UL1 to UL6

NOTES
Analogue TV of the past :

UK System I (1969-2012) - PAL : Offsets of +/- 26.0416 kHz may be used to alleviate co-channel interference
AM Vision carrier at +1.25 (Lower Sideband vestigial)
FMW Sound carrier at +7.25 (sound 6 higher than video - 5.996 actually. 5.9996?) (50kHz deviation FM)
Nicam digital sound at +7.802 (QPSK) first test 1984, introduced summer 1991 on BBC2
(Colour at +5.683)

French System L - Secam : Offsets of +/- 37.5 (?) kHz may be used.
AM Vision carrier at +1.25 (inverted video)
AM Sound carrier at +7.75 (sound 6.5 higher than video)
Nicam digital sound at +7.55

JFMG - ch 21 to 34 - mics and talkback (split +80MHz)
Central London ONLY :
473.275 Camera Data etc. + 473.300, 473.350 1W max
473.400=... Short Term audio links, to 474= 5W max, up to 200kHz
474.0=... Indoor Talkback, to 475= (split -4 : 470= to 471=) 1W max
475.0=... ST links, to 475.25= (as 473.4)


bound.s--ch--sound-
470-478 21 477.25 can be used, remember, for special event PMR - split 4.1 for example
478-486 22 485.25
486-494 23 493.25
494-502 24 501.25 some lists show 500.0 MHz as a mil distress channel. Hmmmm ??!!!
502-510 25 509.25
510-518 26 517.25
518-526 27 525.25
526-534 28 533.25
534-542 29 541.25
542-550 30 549.25
550-558 31 557.25
558-566 32 565.25
566-574 33 573.25
574-582 34 581.25
582-590 35 589.25 + JFMG links and mics (radar on 586 until 1995)

590-598 (36) 597.25 VCRs / Computers etc
594 Aeronautical Radar 50cm - cleared by OFCOM, June 2009

598-606 37 605.25 + JFMG links (was once used for radar on 602, until 1995)
606-614 38 613.25 + JFMG mics
610 Radio Astronomy
614-622 39 621.25 + JFMG talkback (split -80MHz), to 662 NZ 50cm band
622-630 40 629.25
630-638 41 637.25
638-646 42 645.25
646-654 43 653.25
654-662 44 661.25
662-670 45 669.25
670-678 46 677.25
678-686 47 685.25
686-694 48 693.25
694-702 49 701.25 (695-720 talkback)
702-710 50 709.25
710-718 51 717.25
718-726 52 725.25
726-734 53 733.25
734-742 54 741.25
742-750 55 749.25
750-758 56 757.25
758-766 57 765.25
766-774 58 773.25
774-782 59 781.25
782-790 60 789.25
790-798 61 797.25 Military Radio Relay from 790
798-806 62 805.25
806-814 63 813.25
814-822 64 821.25
822-830 65 829.25
830-838 66 837.25
838-846 67 845.25
846-854 68 853.25
854-862 (69) JFMG SAB
862-870 (70) SRD
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Re: The Complete UK Radio Spectrum (0 Hz to 30 EHz)

Postby M3TSY » Thu Nov 22, 2012 12:17 am

-854=--------------------------
Channel 69, now part of '800 MHz Band'. Previous life as PMSE :

854=... JFMG ch69 - PMSE, mics, to 862

854.0=... "allocated to a government department", to 854.25=
854.25=.. JFMG up to 1W - mics / talkback / links, to 862
higher powered links at 856.8 and 860.6 - 200kHz b.width, or subdivided to 50kHz channels
mics only at 854.9 855.275 855.9 856.175 856.575 857.625 857.95
858.2 858.65 860.4 860.9 861.2 861.55 861.75 (all 200kHz b.width)
mic channels may be used for talkback subject to appropriate power restictions

858.750 - 859.750 only available to radiomics, indoors - because:
856=... MoD, to 859.75 "500 kHz tactical training radio relay channels"

860.1=... Shared mic channels, available accross UK, to 862=


-862=--------------------------
Channel 70, Euro-harmonised Short Range Devices band, 863 to 870
"mobile except aeronautical mobile service", to 960 (T/R 75-02)

862=... HO, to 863= "Fire Service band" "currently reserved for Fire Service Telemetry"
862.9625 BA telemetry (869.5 for other industry)

863=... Low Band - Audio
Wireless speakers, Cordless headphones, consumer mics, etc ('ch 70' mics), assisted listening
10mW max (300kHz bw) Euro-harmonised 1998

864.8= 50kHz bw, to 865=
ETSI EN 300 220 "This appears to be a sub-band
for 'Narrow band analogue voice' permitted 100% duty cycle at 10mW e.r.p"
864.8125 1
864.8375 2
864.8625 3
864.8875 4 Calling
864.9125 5
864.9375 6
864.9625 7
864.9875 8

865=... Mid Band - RFID
866... proposed for Asset Tracking, to 868 (to 177-191 MHz CDMA)
867.6.. proposed ETSI paging narrow band returns, to 868.0

868=... High Band - Misc SRD, to 870 - Alarms, telemetry, control and other data

European licence-free LPD Short Range Device (SRD860) two-way radio, max legal power 5mW
on 126 channels in 5 bands

868=... 25mW ...
Band A SRD-860 868.00625-868.59375 48 ch (12.5kHz)
868.6 .. Alarms - 10mW ...
868.7 .. 25mW ...
Band B SRD-860 868.70625-869.19375 40 ch (12.5kHz)
869.2 .. Euro Social Alarms ...
869.25.. Alarms - 10mW ...
869.3... (SRD) ...
Band C2 SRD-860 869.31250-869.38750 4 ch (25kHz)
869.4... 500mW ...
Band C SRD-860 869.41250-869.63750 10 ch (25kHz)
869.65.. Alarms - 25mW ...
869.7... 5mW Cybiko
Band D SRD-860 869.70625-869.99375 24 ch (12.5kHz)


NOTES

869-894 & 824-849 are blocked on RX equipment sold in USA

864.1= .. CT2, to 868.1= phased out. No new equipment after April 2005
864.15 ch 1, to 868.05 ch 40 (100kHz steps) - 10mW 2 level FSK


-870=--------------------------

Mobile
870=... Mobile, usually Dual (870-915 mobile) with 45MHz split to 915-960 (base) ...
870 - 871 Euro-band for ERMES returns
870.0 - 870.6 announced 13.jul.2000
870 - 876 reserved for future TETRA
872 (917)
876 (921) 876.0125... proposed Euro-UIC direct-mode single freq duplex, to 876.0625 (5 x 12.5kHz) 1W
880 (925) 888... SRD, to 889 to be phased out by 2004
890 (935) 898.. ISM +/- 8 MHz
915 (960)

902... unapproved USA cordless phones, to 908 (handsets -90, +19.9 or +24)

Base
915=... Base section, to 960= (split -45: 870-915) Cellphones - GSM Global System for Mobility
915-933 "Army communications training with wide-band Triffid radio relay sets"

915=... reserved for future TETRA, Europe, to 921 (-45: 870-876) (esp 916-917, UK)
919.5=.. future Amateur, to 920= recommended by DSI2 for 2008

921=... UIC, to 925= (by 2005) Euro. Railways GSM-R system
"roll out should start in 2002 and be completed by 2006 ... following a European initiative called EIRENE"
Channel numbers GSM-R 921.2 (ch955).. E-GSM 925.2 (975).. 934.8 (1023).. 935.0 (ch 0).. GSM 935.2 (1)..
921.0.. unused guard band, to 921.1 (see 876 for direct mode)
921.2 first
924.8 last (19th)
925.0 this channel is a wasted 'guard band'

925=... E-GSM - Extended GSM, 925.2 to 935 925-960(:880-915) is UMTS Band VIII

935=... GSM, to 960= (-45: 890-915) (tech, more, more, more, MikeP) [Hear it here!]
935.2 - 959.8 (ch 1-124) TDMA 200kHz channels. Digital duplex. Scrambled. Base continuous, 1.5kW max!

935.2 - 939.6 Vodafone
939.8 - 947 O2 (Cellnet)
947.4 - 954.8 Vodafone
955.2 - 960= O2 (Cellnet)

A cellsite broadcasting on 951.2 may also be using another channel such as 954.8 for traffic
which is why it may not show up on a freq. counter.
Maximum mast-to-phone distance (due to timing limitations) is 35km (8km for 3G).
Find your local antennas with NetMonitor (Nokia)! (Motorola) (*4329 with Trium) (Siemens)
- shows channel number, signal strength in -dBm, distance to mast in 500m steps (during calls), and more!

Latest smart phones (Android) have some free apps that can show you Cell ID numbers and signal strength.

NOTES

917=... ex ETACS/TACS, to 950= 1985 - (phased out by 2005) Cellnet until 1.Oct.2000 Vodafone end of May 2001
917.0125 to 949.9875 (25 kHz duplex channels, 12.5kHz offsets)
917.0125 to 934.9625 ch 1329 to 2047
934.9875 to 949.9875 ch 0 to 600
(Control channels at 935.56-936.06 & 943.06-943.56) [Hear it here!]
917 - 924 Vodafone
925 - 933.1 Cellnet
933.9- 935.1 Vodafone

In 1987 the GSM Directive reserved the use of part of the 900MHz spectrum band for GSM
.. updated in September 2009 by Directive 2009/114/EC to allow more advanced, next generation wireless technologies
to also use this band of the radio spectrum, starting with 3G (UMTS) mobile broadband technology.

930=... CT1+ euro cordless phones, to 932= (split -45) from 1980s to 2002 ( phased out: DEC(01)01 )
930.0125.. 80 x 25kHz channels, to 931.9875 unapproved cordless phones

933=... DSRR, to 935= (Digital Short Range Radio), never happened (Euro plans withdrawn)
Draft idea announced by DTI march 1986, became Euro decision ERC/DEC/(93)01e 12th March 1993
and ETSI standard spec I-ETS 300 168 - max 4W
Base 933-935, -45 split to mobile 888-890
Control channels 933.6625 & 934.3125 : 888.6625 & 889.3125
T/R 20-10 E 1990-93 withdrawn 01 November 1996

934.0125.ex UK CB, to 934.9625 (934/81) (20 channels, 50kHz spacing) 8W 2.Nov.1981 to 31.12.1998 history
Phased out from end of 1988 due to impending DSRR which never came to be,
the 934/81 band became part of ETACS, later Extended GSM.

959=... CT1 euro cordless phones, to 960= (split -45) from 1980s to 2002 ( phased out: DEC(01)01 )
959.0125.. 40 x 25kHz channels, to 959.9875

There is an Amateur 33cm allocation in the USA from 902 to 928 MHz, and 922-927 in NZ (ARRL Bandplans 2012)

-960=--------------------------
Aero. Navigation (DME/IFF),
Military Link16/JTIDS (969-1206) Tactical Data Link / Secure Voice (timeslot divided)
on 969 (single channel) or hopped over 51ch (3MHz spaced), avoiding +/-20MHz around IFF channels.
DME dates back to the 1950s.

966 Astronomy +/-4 MHz

978.... DME Ground reply X channels, to 1087 (paired with 1xx.x0 MHz) (to +63)
978 ADS-B Universal Access Transceivers (air+ground) FAA/US for Euro use by 2012 (1MHz bandwidth)
1025... DME Air mobile channels, to 1150 (1-126 x 1 MHz channels; 1-16 and 60-69 not used)
Selected in aircraft by tuning to a paired channel between 108 and 118 MHz
Pulses transmitted by the aircraft, returned by the ground station & time difference measured.
1104... DME Ground reply Y channels, to 1213 (paired with 1xx.x5 MHz) (to -63)

TACAN is like DME for slant distance measurement
but the return pulses give bearing info instead of using any VHF signal

1030 SSR/IFF (Squalk) Ground (secondary radar - rotating), air reply on 1090 (4MHz bandwidth)
use AM to detect (pulses stand out more over silence than over noise) [Hear it here!]

1164 - 1215 future GPS L5 and Galileo downlinks (WRC 2000)
with 1260-1300 and 5010-5030 - uplinks at 1300-1350 and 5000-5010


-1,215=---microwaves---(1.215 GHz)--------
Mobile, military, radar, navigation, fixed etc...

Rather specialist, wavelengths of less than 30cm really do allow
for high gain antennas, with very narrow beamwidths. Cable losses
become very noticeable and/or untenable. Mobile "flutter" quite
severe, mobile systems need many more base stations to cover a given
area. Most useful uses are direct fixed links, point to point, satellite
(line of sight), low range etc.
So - mostly un-interceptable and/or digital.

1215... Civil airport radar, to 1350 & radiolocation, satellite

1246... Russian GLONASS GPS L2, 0-12: 1246+n(0.4375) see 1602

23cm
[checked and updated 2012] (RSGB Bandplan 2012)
1240=... Amateur 23cm band, to 1325= CW,SSB/FM/TV secondary

1240=... Alternative Narrowband/Beacon...
1240.75 FM/DV repeaters in (see 1249)
1241=... Data...
1242=... ATV repeaters in (see 1300)...
1249=... FM/DV repeaters (spit -8.25 :1240.775...) future use
1249.025 to 1249.225

1249.25=...
1250=... CAUTION to avoid interefence to Primary User...
1260-1270 Amateur Satellite uplinks
1290=...

1290.994= repeaters in (see 1297)...
1291.494=... All modes

1296=... Preferred Narrowband Segment, to 1297 (MGM=Machine Generated Mode)
1296... CW,MGM...
1296.0...EME, to 1296.025
1296.138 PSK31
1296.15.. SSB,CW,MGM...
1296.2 Centre of Activity
1296.4.. Linear transponder input, to 1296.6
1296.5 Image Mode Centre of Activity (SSTV, Fax etc)
1296.6 Narrowband Data Centre of Activity (MGM, RTTY etc)
1296.6.. Linear transponder output, to 1296.7

1296.75.. Beacons...

1297... FM/DV repeaters RM0 to RM19 (split -6 :1291..)
1297.0 RM0 GB3NO Norwich
1297.025 RM1 (not in use)
1297.05 RM2 GB3FM Farnham
1297.075 RM3 GB3PS Royston, GB3SE Stoke-on-Trent
1297.1 RM4 (not in use)
1297.125 RM5 (not in use)
1297.15 RM6 GB3MM Wolverhampton
1297.35 RM14A :1277.35 (-20) GB3AK Alveston
1297.375 RM15 GB3WC Flockton
(1297.475 RM19 not in UK yet, like others not listed)
1297.5.. FM/DV simplex, to 1298=
1297.50 SM20 FM calling
to
1297.725 SM29 DV calling
1297.75 SM30
1297.9 Voice Gateways, to 1297.975
1298=... All Modes, to 1299= General mixed analogue/digital in 25kHz ch:
1298.025 RS1
to 1298.275..German repeaters, to 1298.65 (split -28 :1270..)
1298.975 RS39 1298.025..French repeaters, to 1298.70 (split -28 :1270..)
1299=... Data...
1299.75= FM/DV 25kHz ch:
1299.775
to 1299.85 RM0A :1293.85 (-6) GB3BK Romley
1299.975
1300=... ATV
TV repeater outputs from 1985 (UK)

-1325= ---
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Re: The Complete UK Radio Spectrum (0 Hz to 30 EHz)

Postby M3TSY » Thu Nov 22, 2012 12:17 am

-1,350=------------------

1,350=...Civil fixed links (split +142: 1492-1517) new. JRC links
1370..Radioastronomy, to 1400

1,375=...Govt / MoD links (split +52: 1427-1452)
"radio relay training... wide-band surveillance, video, data links, aeronautical telemetry"
1394 Civil video links - MPT 1349 standard (band 1389-1399)

1,400=...Transmission Prohibited
Astronomy, Space Research, SETI, Hydrogen Line. Certain frequencies around here
propagate very well through the universe, so the boffins listen here for extra-
terrestial transmissions. But surely the little grey men are doing the same thing?
1420 SETI@Home (+/-1.25MHz)

1,427=...Govt links (split -52: 1375-1400)
1450... Civil links, to 1467.5 (split +62.5: 1512.5-1530.0) x

1,452=...L-Band DAB & links
DAB "23 blocks of spectrum available... 9 of these blocks have been made available for terrestrial use
using the Eureka 147 technology... availability of the band is not assured until 2007...
The remaining 14 blocks are currently earmarked in CEPT for satellite digital radio."
LA 1452.192-1453.728
LB 1453.904-1455.440
LC 1455.616-1457.152
LD 1457.328-1458.864
LE 1459.040-1460.576
LF 1460.752-1462.288
LG 1462.464-1464.000
LH 1464.176-1465.712
LI 1465.888-1467.424

& Worldspace digital satellite broadcasting 1467-1492 (7025-7075 MHz uplinks) more
3 sat.s, each with 3 beams of 2 TDM carriers (one left, one right circular pol.)
TDMs are QPSK modulated, overall rate of 3.68 Mbit/s - 96 so called Prime Rate Channels
(PRCs) having 16 kbit/s each. MP3 audio coding. 2.3MHz TDM sep. detail
Receivers cover 1453.384 to 1490.644 MHz (52 centers currently: 1467.184-1490.644, 0.460 MHz steps)
Orbital positions :
AfriStar 21 East - 1469R 1471L 1478R 1481L (MHz & Pol)
AsiaStar 105 East - 1473R 1475L 1478L 1480R 1488R 1490L
AmeriStar 95 West - (2002)

1467.5..Civil links, to 1472.5 (split +40.0: 1507.5-1512.5) x
1488.25..JFMG links, to 1490.75

1,492=...Civil fixed links (split -142: 1350-1375)
1507.5..Civil links, to 1512.5 (split -40.0: 1467.5-1472.5) x
1512.5..Civil links, to 1530 (split -62.5: 1450.0-1467.5) x

1,517=...Civil links, JFMG, one-way, possible future MSS expansion
1517... JFMG, ant. restrictions : 1517.25 Horizontal 1517.75 Vertical
1518... JFMG, to 1525 available until further notice from OFCOM

1,525=...Satellite comms downlinks - Inmarsat GMDSS etc (uplinks 1626.5-1660.5) (+101.5) SpaceChecker
Thuraya (digital) - (Feeder Links E-S 6425-6725MHz, S-E 3400-3625MHz)
1535-1544 30kHz FM comms, 25kHz steps : 1535.025... ch 001, to 1543.475 ch 339

1,559=...Radionavigation, to 1626.5=
1,575.42 Navstar GPS Nav L1 C/A (military accuracy with 1227.6 L2 +/-14MHz) spread (20,231km orbit)
The L1 carrier is modulated by all three GPS data streams, C/A, P and Nav/System Data.
The L2 carrier is modulated by two GPS data streams, P-code and Nav/System Data.
The L3 carrier 1381.05 MHz is a non-navigation signal associated with nuclear burst detection.
L4 is 1379.913 MHz (1841.4 MHz had been considered)
L5 1176.45 MHz (third 'civil' signal) band 1166-1186
1,602... Russian GLONASS L1, 0-12: 1602+n(0.5625) spread spectrum

1,610=...Mobile-satellite systems, uplinks (down at -101.5)
1,610=...LEO MSS, to 1626.5= (up&down) CDMA i.e. Globalstar, Iridium (TDMA, 780km up)
1,645.5..Distress EPIRBs, to 1646.5 (Inmarsat E) 1645.6-1645.8?

1,660.5=.Radioastronomy, to 1668

1,668=...H.O. links (with 1698-1700)

1,670=...TFTS ground stations (see 1800), possible future MSS (TFTS "1670.5 and 1671.5")
Sondes (met & mil), to 1690

1,675=...Meteo satellite, to 1710
1,677=...H.O. mobile applications, to 1685
1,683=...possible future MSS, to 1690
1,690=...Weather Satellite HRPT (Hi-res pics), to 1710= NOAA, GOES, MeteoSat. EUMETSAT:
1675.181 DCP, to 1675.381 - 3kHz b/w
1675.929 PCM telemetry - 30kHz b/w
1686.833 DATTS format - 660kHz bandwidth / Burst PCM 5.4MHz b/w
1691 A1 20.5dBW
1694.5 A2 19dBW
HRI 660kHz b/w, WEEFAX 26kHz b/w
MDD ch1 1695.6438, ch2 1695.7250, ch 3 1695.7562, ch4 1695.7874 +/- 15.6kHz (360kHz b/w)

1,698=...H.O. links, to 1700 (with 1668-1670)

1,710=...links, radioastronomy, Skynet uplinks, PCN mobile phones, to 1880= :

1,785=...JFMG 50mW, to 1800=
1785.7...radio mics, to 1799.3
1790=... secondary to H.O. links, to 1798

1,800.30.TFTS in-flight digital phones (air-ground), to 1804.969 (164 x 30.303 kHz channels : ground at -130)
To be withdrawn (2002 decision) and kept for harmonised use, probably MSS

1,805=...PCN mobile phone system GSM 1800, to 1880= (split -95: 1710-1785) UMTS Band III
Standard : 1805.2 to 1879.8 (374x TDMA 200kHz channels) Digital duplex. Scrambled. Base continuous. info.
Channels numbered 512-885 Foreign GSM 1900 (split -80) : 1930.2 (512) - 1989.8 (810)

1805.2 - 1810.8 O2 (Cellnet) (ex 1805-1807.5 TFTS guard)
(1807.5-1815.5 H.O. Fixed links split: +494.5)
1811 - 1816.6 Vodafone
1816.8 - 1846.6 T Mobile (One 2 One) (ex 1820-1860 links, split: -110)
1846.8 - 1876.6 Orange
1876.7=- 1880= guard-band to protect DECT

(1873.5-1897.5) offshore Fixed Links (split: -108)

1,880=...DECT Digital Euro. Cordless Telephones, to 1900=
1881.792..ch1, to 1897.344 ch10 (steps of 1.728 MHz) encrypted, base continuous (pulses), less than 250mW
Single Freq. Duplex (Digital TDMA) - supporting 12 conversations at once per channel

1,900=...future UMTS, to 1980= (with 2110-2170) IMT-2000, FPLMTS 3G 3rd generation mobile issues
"licences will comprise three of (2x10)+5MHz (C,D,E), one of 2x15MHz (B) and one of (2x15)+5 MHz (A)."
WRC 2000 added 806-960, 1710-1885, 2500-2690 (Satellite 2500-2520 & 2670-2690),
and for satellite: 1525-1544 & 1545-1559, 1610-1626.5 & 1626.5-1645.5 & 1646.5-1660.5, 2483.5-2500
1900=.. single, to 1920=
1902.4 D
1907.4 E
1912.4 C
1917.4 A
1919.9= guardband, to 1920=
1920=.. paired, to 1980= mobile/uplink see +190 (2110-2170)

1,980=...MSS, to 2010
2,010=...3G licence-exempt band, to 2025 (first carrier 2013 or higher, last 2022.2)

2,025=...FWA, to 2110 (with 2200-2290) "2 x 45 MHz identified by CEPT as harmonised bands for tactical radio relay."
JFMG 20-100W Not within 5km of Bude or Menwith Hill

2,110=...3G Base/Downlink, to 2170= (split -190: 1920-1980) 12 x 5MHz channels on a 0.2MHz raster (some overlap)
2110.0= guardband, to 2110.3= freq. = 2075.2 + (ch * 0.2) Dec(99)25 UMTS Band I
2112.8 A (A has 14.6MHz) 2112.8 is lowest allowed carrier (ch 188), 2167.2 highest (ch 460)
2117.6 A
2122.4 A
2124.9=
2127.4 C (C has 10MHz)
2132.4 C
2134.9=
2137.4 B
2142.? B (B has 14.8MHz) must be 5MHz between operators, less is OK for one operator
2147.2 B
2149.7=
2152.2 D (D&E have 10MHz each)
2157.2 D
2162.2 E
2167.2 E
2169.7= guardband, to 2170.0=

2,170=...MSS, to 2200 (and 1980-2010)

2,200=...SKYNET satellites telemetry downlinks, to 2290

"Sat. Telecommand, Telemetry and Control (TT&C) ... at 1760 - 1840 MHz for the command uplinks"

2,300... Airborne Telemetry, to 2330 (extension to 2400)

2,310=...Ham 13cm band, to 2,450= (2360 UK Police A-G Video?)
"military fixed, telemetry and mobile.. long-range airborne telemetry links are particularly protected."

2,400=...deregulated band, to 2483.5 (WiFi 802.11b 11Mbps, 802.11g 54Mbps)
Some FWA in Scotland
JFMG video links & cameras, to 2.68 (20MHz channels?) (+ some video senders)
2402.. Bluetooth digital SRD ch0, to 2480 ch78 (79 x 1MHz channels) within 2401.5= to 2480.5=
1600 hops per sec over 32 channels
2402.. FHSS ch2, to 2480 ch80
2403.. HomeRF, to 2477 (75 x 1MHz OR 5 x 15MHz channels)
2446.. Auto.Vehic.Ident. (500mW) and RFID (up to 4W), to 2454
2450 ISM, your microwave oven (2455). Really.

PRR Personal Role Radio (mil) (435MHz remote PTT)
"2,400 - 2483 MHz, 256 Channels available, 100 mW, QPSK (Direct Sequence Spread Spectrum)"

2,483.5=.MSS, to 2500=

2,500=...see 2,620

2,570=...UMTS TDD, to 2,620
2,620=...UMTS Band VIII, FDD IMT-E, to 2,690= (split -120: 2500-2570) 4G LTE 14 x 5MHz ch?

2,700=...Radar, to 3100 - 10cm band
2700-2900 "airfield surveillance and traffic control radars for civil aviation, and military airfields."
2900-3100 "Civil maritime, air traffic control and range safety radars, together with naval radars."

3.100=...Mil radio location, to 3400
"heavily used for high-powered land, airborne and naval radars with a considerable geographical spread"

3400-3600 "MoD assigns some frequencies for airborne and naval radars and for radar development."
"also agreed to civil use of this band for mobile TV Outside Broadcasts and for civil FWA."
3,400=...Ham 9cm band, to 3,475=

3,442=...Police helicopter video downlinks, to 3475

3,475.6=.FWA/RFA/RLL, to 3,492.688 (split -50: 3425-3442) used by Ionica 1993-??(97?)
2001 report : 3425-3442 paired with 3476-3493, 2x17MHz (51MHz duplex)

3,500=...PMSE, to 3600 - 5 video channels

3,605=...FWA, to 3689 (3925-4009) 2x36MHz "currently used by Tele-2"

3,675=...C-Band satellite TV, to 4,200=

4,200=...Mil/Civil aircraft precision radar altimeters and ground proximity warning systems, to 4400=

4,400=...NATO harmonised military fixed and mobile services, to 5000= "fixed links between military establishments"
"wide-band channels for 'down-the-hill' high capacity links for tactical area communications systems."
Future tropospheric scatter systems, wideband, "ranges in excess of 300 kilometres"

5,000=...Microwave Landing System, to 5,150=

5,150=...RLAN Short Range High Data Rate Nomadic Equipment, to 5,875=
(802.11a), to 5350
5,250=...EESS, to 5460
5,350=...radar... "Military tactical radars use 5250-5850 for short to medium range functions"
5,650=...Ham 6cm band, to 5,850=

5,795=...RTTT (Road to vehicle systems), to 5.805 (possibly to 5.815) tolls etc. DEC(02)01
with 63-64 GHz (vehicle-to-vehicle or road-to-vehicle) and 76-77 GHz (radar)

7,125=...Fixed to 8500 - ERO prefered channels

7,250=...UK SKYNET fixed satellite down-links (MSS down at 7250-7300), to 7750
"The up-link is engineered at 7900-8400 with 7900-7950 MHz for MSS up-links"
"the primary military link to UK forces overseas. The satellite allocation is a harmonised NATO band"
Mil. downlink band 7300-7750 MHz is shared with civil fixed links

8500-10125 "allocated to the radiolocation service although the band 9300-9500 is primarily
for radio navigation. The band is widely used for military radars including battlefield radar,
surveillance radars at ranges and MoD DPA sites, precision approach radars at many airfields and
on naval vessels for missile control and tracking. Assignments exist also for wide band data links"

9,000 Radar, to 9500 - 3cm band

10,000=...Ham 3cm band, to 10,150= - and 10,300= to 10,500=
10,065 TV repeater o/p
FWA service at 10.125-10.225 paired with 10.475-10.575
"MoD manages the band 10.125-10.5 GHz for high discrimination radars, some of which are in development
or on trial, and airborne data links"

10,500 SRD - movement detectors

10,680=...Space research, to 10.7=


-10,700=--(10.7 GHz)-----------
Satellite TV, Ku band - Astra,Eutelsat,Intelsat etc. (35,876km up)
"FREE TO AIR Mpeg2 SATELLITE RADIO" (with bit rates)

10,700=..FSS (fixed sat. service)
11,700=..BSS (DBS - Band VI)
12,500=..Telecom

-12,750=-----------------------
These are really small radio wavelengths...

Fixed links - 23/25/38GHz bands, 32, 51.4-52.6, 55.78-59

13,250=.."aeronautical radio navigation and radiolocation. The band is widely used for
airborne doppler radars and naval radars", to 14=
14,620=..harmonised NATO band, to 15.23 - "fixed and mobile communications and airborne data links.
The band is also used for short-range radio relay and fixed links"
15,700=..MoD, to 17.3 - "wideband data, command links, trial radars, survey, distance measuring and
civil airfield movement control radar devices" 15.7-17.1 NATO harmonised
20,200=..harmonised NATO band, to 21.2 "planned for down-link military mobile satellite systems,
paired with the up-links at 43.5-45.5 GHz ... some USAF systems use this band in the UK."
"There is great pressure for this band to be used for civil satellite systems of non-NATO countries"

24,000=..Ham 12mm band, to 24.25= and SRD movement detectors
26,500=..NATO harmonised, to 27.5= fixed and mobile "planned for wide band systems"
27,500=..Fixed/Fixed Satellite '28GHz Band', to 29.5=
28-28.5 BFWA Broadband Fixed Wireless Access, with 29-29.5 'forward and return channels of 112 MHz'
(28.0525-28.4445 with 29.0605-29.4525)
29,500=..Satellite Interactive Terminals, to 30=
30,000=..NATO harmonised, to 31= no MoD use but paired with 20.2-21.2
31,300=..EESS, Space Research, Radioastronomy, to 31.8
31,800=..Fixed Links, to 33.4 "All SRDs are to be withdrawn from this band by 31st December 2003"
33,400=..NATO harmonised radiolocationn, to 36= "Naval, land and airborne tracking radars"
36,000=..NATO harmonised, to 37= "military fixed and mobile services: there is no current use"
39,500=..NATO harmonised, to 40.5= "planned for satellite systems.. paired with 50.4-51.4 .. no current use"
40,500=..future ITC 7mm MVDS Multipoint Video Distribution, to 42.5=
47,000=..Ham 6mm band, to 47,200=
59,000=..UK : fixed, mobile and radiolocation services, to 64= "MoD manages the mobile and radiolocation usage"
59 - 61 NATO harmonised
63,000 2nd Phase Road Traffic and Transport Telematics
71,000=..Fixed, Fixed satellite, Mobile, and Mobile satellite services, to 74
75,500=..Ham 4mm band, to 76,000= until 31.dec.2006
76,000 Vehicle Radar Systems
77,000=..MoD Radiolocation. to 81= "Trials are current"
77,500=..Ham 4mm band, to 78,000= from 1.jan.2003 (and 78-81 secondary)
81,000=..Fixed, Fixed satellite, Mobile, and Mobile satellite services, to 84
86,000=..EESS, Space Research, to 92=
92,000=..Fixed, Fixed satellite, Mobile and Radiolocation services, to 95= Mod "Trials are current"
95,000=..Mobile, Mobile satellite, Radio navigation satellite, short range radiolocation devices, to 100=
134,000=..Ham 2mm band, to 136,000= from 1.jan.2003 (and 122.25-123 + 136-141 secondary)
142,000=..Ham 2mm band, to 144,000= until 31.dec.2006
248,000=..Ham 1.2mm band, to 250,000= (and from 2003, 241-248 GHz secondary)

Radio or Far Infra-Red? There's a bit of overlap near 1mm wavelengths...
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Re: The Complete UK Radio Spectrum (0 Hz to 30 EHz)

Postby SilverShadow » Mon Feb 25, 2013 12:06 am

-275,000=-----(275 GHz)--------
Far Infra-Red, to 25,000 GHz (over 1mm to 12µm)

-25,000,000=--(25 THz)---------
Infra-red

-441 THz=----------------------

Image

370-390nm Ultraviolet
400-418nm Violet
430-485nm Blue
495-505nm Turquoise
525nm Green
555-575mn Yellow/Green
585-595nm Yellow
595-605nm Amber
605-620nm Orange
620-635nm Orange/Red
640-700nm Red
700-1300nm Infra-red

-1,666 THz=--------------------
Far Ultraviolet 180nm-91nm

-3,289 THz=--------------------
Extreme Ultraviolet 91nm-10nm
912-100 Angstroms

(or UV A 380-320nm, UV B 320-290nm (middle), UV C 290-10nm)

-30,000,000,000=--(30 PHz)-----
X-rays 10nm-10pm
100-0.1 Angstroms

-30,000,000,000,000=-(30 EHz)--
Gamma rays 10pm-100fm and beyond

That's enough. Obsessive? Me? Hehe.. wonder what a "profiler" would say about all this!


Frequency multiplied by wavelength gives 300,000,000 m/s - the speed of light...
or 299,792,458 to be more exact.

300 mHz > 3000 mHz 1Gm > 100Mm easier to count s/cycle than c/s !
3 Hz > 30 Hz 100Mm > 10Mm VERY long waves! Natural 'Earth' waves
30 Hz > 300 Hz ELF 10Mm > 1Mm Bass!
300 Hz > 3000 Hz ILF 1000km > 100km Voice frequencies (sound)
3 kHz > 30 kHz VLF 100km > 10km
30 kHz > 300 kHz LF 10km > 1km
300 kHz > 3000 kHz MF 1km > 100m
3 MHz > 30 MHz HF 100m > 10m
30 MHz > 300 MHz VHF 10m > 1m
300 MHz > 3000 MHz UHF 1m > 10cm
3 GHz > 30 GHz SHF 10cm > 1cm
30 GHz > 300 GHz EHF 1cm > 1mm mainly experimental
300 GHz > 30 THz THF 1mm > 10um limits of radio / far infra-red
30 THz > 300 THz 10um > 1um infra-red light
300 THz > 3000 THz 1um > 100nm infra red > visible > ultra violet (near & far)
3 PHz > 30 PHz 100nm > 10nm extreme ultra violet
30 PHz > 30 EHz 10nm > 10pm x-rays
30 EHz > 10pm > Gamma rays

1 micron = 1 micrometre = 1um = 1000nm = one thousandth of a mm

10 Angstrom = 1 nanometre i.e. 5000A=500nm 1A=0.1nm=100pm

X unit (Xu) = approx. 0.001002 angstrom, or 100.2 femtometres, defined by
M. Siegbahn in 1925. Formerly used for measuring the wavelength of X rays
and gamma rays now measured in picometres (pm) or femtometres (fm).

1 Fermi = 1fm = about the size of an atom's nucleus

Metric prefixes

Ten to the power of
-33 vunkto v
-30 wekto w
-27 xonto x
-24 yocto y
-21 zepto z
-18 atto a Greek: atten = eighteen
-15 femto f Greek: fempten = fifteen
-12 (trillionth) pico p 'little bit'
-9 (billionth) nano n nanos = dwarf
-6 (millionth) micro u mikros = small
-3 (thousandth) milli m mille = thousand
-2 (hundredth) centi c centum = hundred
-1 (tenth) deci d decimus = tenth
1 (ten) deca da deka = ten
2 (hundred) hecto h hekaton = hundred
3 (thousand) kilo k Greek: Khilioi = 1000
( 4 (ten thous.) myria my myriad = 10000 ) an old one! (info)
6 (million) mega M megas = great
9 (billion) giga G gigas = giant
12 (trillion) tera T teras = monster
15 (quadrillion) peta P pente = five (General Conference of Weights and Measures 1975)
18 (quintillion) exa E hex = six
21 (sextillion) zetta Z z in latin (General Conference of Weights and Measures 1990)
24 (septillion) yotta Y y in latin
27 (octillion) xona X x in latin
30 (nonillion) weka W w in latin (bronto b/B is a myth)
33 (decillion vunda V v in latin
36 (undecillion)
39 (dodecillion) These American terms obviously increment by one per
42 (tredecillion) thousand. In Europe however, we prefer to do it by
45 (quattuordecillion) millions. Thus a Euro billion is a million millions
48 (quindecillion) and not a thousand millions.
51 (sexdecillion)
99 (dotrigintillion)
100 (googol)
120 (novemtrigintillion)
303 (centillion)
googol (googolplex)

Gloss.

ACARS Air Comms Addressing/Reporting System
AM Amplitude Modulation (power output varies with modulation, can cause interference)
AMR Automatic Meter Reading
CB Citizens Band (or Complete B*llocks)
CBS Common Base Station - PBR via a dealer who supplies equipment and airtime
A.K.A. Community Repeaters.
Each set of users have their own CTCSS tone so they don't hear any other groups
CDMA Code-Division Multiple Access ("random" hopping/spread spectrum)
two users in the same band won't be on the same channel at the same time
..or at least not for long
COFDM Coded Orthogonal Freq. Division Multiplex (cough dee-em; NOT Cod FM!)
CSR Coastal Station Radio (international channels or private)
CTCSS Continuous Tone Coded Squelch System
CW Continuous Wave (for Morse) - as opposed to spark transmissions
DAB Digital Audio Broadcasting
DGPS Differential GPS (sends details of the current GPS error)
DME Distance Measuring Equipment
DSI Detailed Spectrum Investigation (survey)
EPIRB Emergency Position-Indicating Radio Beacon
ERP Effective Radiated Power (takes antenna system gain/loss into account)
GLONASS GLObal NAvigation Satellite System (GLObal'naya Navigatsionnay Sputnikovaya Sistema)
GPS Global Positioning System
H.O. Home Office (govt dept)
Hz Hertz - one cycle per second. MHz is millions per second.
EESS Earth Exploration Sat. Service
ERMES European Radio MESsaging - paging standard
ETACS Extended TACS
FDMA Freq. Div. Multiple Access (sharing a system using different freq.s - i.e. trunking)
FM Frequency Modulation (freq varies with modulation, fixed power causes less problems)
FSK Freq. Shift Keying
FWA Fixed Wireless Access
ILR Independent Local Radio
INR Independent National Radio
ISM Industrial/Scientific/Medical
JFMG Joint Frequency Management Group (SAB)
JRC Joint Radio Co.
LEO Low Earth Orbit
LPD Low Power Devices
MBR Maritime Business Radio
MSS Mobile Satellite Service
PAMR Public Access Mobile Radio (like CBS, but trunked, over wider areas. Some telephone access too)
PBR Private Business Radio (OFCOM's new preferred term)
PMR Private Mobile Radio (what everyone else calls it)
PMSE Program Making & Special Events
POCSAG A paging standard
RDS Radio Data System (57kHz sub-carrier on the audio modulation)
RMR Remote... see AMR
RQAS Radio Quality Assurance Scheme (ISO 9000)
RSL Restricted Service Licence (short term broadcast)
SAB Services Ancillary to Broadcasting
SAP ..to Program making
SAR Search and Rescue
SETI Search for Extra-Terrestial Ignorance
SOLAS Safety Of Life At Sea (meetings)
SSB Single Side-Band ("half" of AM, with the carrier suppressed) USB Upper or LSB Lower
SRBR Short Range Business Radio
SRD Short Range Devices
STH Short Term Hire (now called "Suppliers Light")
TACS Total Access Comms System
TDMA Time Division Multiple Access (in-turn sharing of a freq.)
TETRA TErestial Trunked RAdio (or "how the police will avoid your monitoring")
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Re: The Complete UK Radio Spectrum (0 Hz to 30 EHz)

Postby SilverShadow » Mon Feb 25, 2013 12:09 am

Updated and reformatted with a big thanks to RF-man :P
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Re: The Complete UK Radio Spectrum (0 Hz to 30 EHz)

Postby Davie Boy » Sat Oct 28, 2017 12:02 am

Very informative and detailed look at the spectrum thanks.... :thumbup:

one small update....

M3TSY wrote: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


These are now not used.... I believe there is a new reserve channel on the tetra network....
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Re: The Complete UK Radio Spectrum (0 Hz to 30 EHz)

Postby Mark5R » Sat Oct 28, 2017 12:20 am

Davie Boy wrote:Very informative and detailed look at the spectrum thanks.... :thumbup:

one small update....

M3TSY wrote: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


These are now not used.... I believe there is a new reserve channel on the tetra network....


Dont they still have a licence and retain 166.4375/171.2375? I thought they still had this and while out on travels outside of my qth area and a local high spot I go to for DX very recently I have picked up NHS/ambulance/medical coms a fair few times on 166.4375? By recently I mean the past few weeks and not years :mrcool:
Whistler TRX-2 ~ Funcube Dongle Pro+
Baofeng UV-5R ~ Baofeng UV-3R+
GRE PSR-225 ~ Uniden Bearcat BCT-15X
Cobra 29LTD ~ Cobra MT115
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Re: The Complete UK Radio Spectrum (0 Hz to 30 EHz)

Postby Davie Boy » Sat Oct 28, 2017 12:58 am

Mark5R wrote:Dont they still have a licence and retain 166.4375/171.2375? I thought they still had this and while out on travels outside of my qth area and a local high spot I go to for DX very recently I have picked up NHS/ambulance/medical coms a fair few times on 166.4375? By recently I mean the past few weeks and not years :mrcool:


They could do but I don't think so somehow....

You have the scanning directory so have a look in it....

....the giveway is that not long after tetra more and more new users were allocated 166.4375.... general users like Taxis for instance.... Red Cross and SJA still use it I think.... so you could of heard them.... or even a hospital or PTS on a standard licensed frequency.... Tetra is only for main-scheme communications and EMS and doesn't cover hospital buildings etc.
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