London Transport Frequencies

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Re: London Transport Frequencies

Postby SilverShadow » Thu Mar 27, 2014 12:57 pm

I've merged your posts together as they are all on the same subject. Have you tried The Paddington ones I gave you? Both those frequencies are very active around London with Rail users digital/analogue as well as being the main two channels for Paddington rail staff?

I can give you some more to try around London but if you've been trying those I gave you 8 days ago and not picked anything up at all on those two (453.550 and 453.900) since then there might be a problem with your equipment that needs looking at?
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Re: London Transport Frequencies

Postby benqprready88 » Thu Mar 27, 2014 10:59 pm

SilverShadow wrote:I've merged your posts together as they are all on the same subject. Have you tried The Paddington ones I gave you? Both those frequencies are very active around London with Rail users digital/analogue as well as being the main two channels for Paddington rail staff?

I can give you some more to try around London but if you've been trying those I gave you 8 days ago and not picked anything up at all on those two (453.550 and 453.900) since then there might be a problem with your equipment that needs looking at?


I am getting mototrb signals i am using sdr and the dongle with dsd plus i just dont get anything from those frequencies you gave me i live within 2 miles of paddington station and not getting anything what settings shall i use on srsharp filter bandwith and filter band? maybe i got the settings wrong? i am getting a strong signal around 453.486 on my dsd plus its coming up with -dmr BS DATA CC=6 IDLE but no voice
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Re: London Transport Frequencies

Postby SilverShadow » Sat Mar 29, 2014 9:37 am

Most frequencies are in 12.5 steps, 453.486 is more likely than not 453.4875.

London, due to it's congestion does have more use of 6.25 steps than anywhere else though so I would set your SDR steps to 6.25.

You will find some TRBO systems transmit a lot of data in between voice so you may see a lot of data on some systems and have to be patient for the voice, you will notice if you listen to a TRBO signal on your scanner that it is a constant tone when sending data but when they talk it changes to a more random tone.

Here are a few more rail users around London for you to try all using DMR...

South West Trains, PUTNEY, WANDSWORTH - 453.1375
South West Trains, WIMBLEDON - 453.6125
South West Trains, BATTERSEA - 455.650
South West Trains, CLAPHAM - 449.1500
South Western Trains, CLAPHAM - 440.6875
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Re: London Transport Frequencies

Postby jonnyboyy » Fri Apr 04, 2014 8:49 pm

Hi, 453.5500 is a very active frequency in London used by Liverpool st, kings cross and Euston, different railway stations use different ctcss tones. Also the railway cab secure frequencies are fairly active, can send you a list of them if you want them. Also with the ibus frequencies its best to input all of them except the control channels as they are all very active.

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Re: London Transport Frequencies

Postby HAMTREKSCAN » Wed Apr 11, 2018 4:31 pm

Anyone have Color code and TG for 453.900 please? if necessary pm me thanks.
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Re: London Transport Frequencies

Postby Neil57uk » Sat Apr 14, 2018 10:36 pm

To the gent who offered to supply the CSR freqs the system was replaced last year.

To the gent who wants CC's for 453.900 please that there are many so simply enter the freq into your digi scanner and it will decode the CC for you.
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Re: London Transport Frequencies

Postby Metradio » Sat Apr 14, 2018 11:05 pm

Neil57uk wrote:...To the gent who wants CC's for 453.900 please that there are many so simply enter the freq into your digi scanner and it will decode the CC for you.

I get the feeling the OP does not have a digital scanner and is using a DMR handie..

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