PDW Pager Decoder

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PDW Pager Decoder

Postby welshmonitor » Wed Mar 07, 2018 2:02 pm

I have recently got back into monitoring pager transmissions using the above program, I have got it working great via my BCT15X & sound card on my PC.
I'm wondering if anybody has any lists of Capcodes (address) for transmissions covering the RNLI, Coastguard, or anything of interest in South East Wales.
I'm using freq 153.0250MHz (FM) which is yielding some really good results, but 90% of it appears to be for Devon, Cornwall, Bristol etc & I would like to use the Filter option, to flag up anything that is listed above.

Any help, ideas, suggestions etc would be most appreciated.

Thanks

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Re: PDW Pager Decoder

Postby Metradio » Wed Mar 07, 2018 5:00 pm

Why not just down load the RNLI Launch Alerter ?

https://rnli.org/what-we-do/lifeboats-a ... nch-alerts

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Re: PDW Pager Decoder

Postby Minus1 » Wed Mar 07, 2018 6:52 pm

The RNLI have their own UK wide paging system on 153.075 MHz
I reserve the right to ignore people who have made no attempt to the read the manual, and expect others to do it for them.
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Re: PDW Pager Decoder

Postby welshmonitor » Wed Mar 07, 2018 11:01 pm

Thanks for the replies, I have tried monitoring the RNLI on the 153.075 but not heard anything at all, will keep at it though. As for the RNLI Desktop pager alert, I do have that running too, but im old school and much prefer to hear/receive things via my own equipment where at all possible. Thank for the info though, it's very much appreciated :thumbup:
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Re: PDW Pager Decoder

Postby Chris P » Thu Mar 08, 2018 9:22 am

please note however the on line RNLI launch alert set up is that it has an inbuilt delay of around 30 minutes in order to give the crews time to launch before the onset of onlookers or photographers etc (however well meaning )at the launch sites. With lives at risk no responsible person would want anyone slowing down the launch or getting in the way .
Regards Chris aka G8FFF nipper or tazmin88
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Re: PDW Pager Decoder

Postby welshmonitor » Thu Mar 08, 2018 7:38 pm

Just to add to my original post, most of the messages I'm getting on 153.0250 MHz appear to dispatch to medical incidents, quite possibly to Ambulances, Now I cant think of any ambulance crews that I have met in the past carrying pagers, therefore is it possible that the messages being received are some form of Mobile Data Terminal (MDT) messages ??
An example of the messages if getting are :-

18:30-82 INC ALERT No: 11654163 Breathing Problems, AT:, ???????????????????????????????????????????????????????????????????????????????????????????????????, Time of Call: 08/03/2018 18:28:03 Tel: 08456 047251


Please note I have replaced the address of the incident with ??????? so as not to fall foul of data protection issues etc


Any input or insight to that would be most appreciated.

Thank you

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Re: PDW Pager Decoder

Postby mr_erratic » Sun Mar 11, 2018 7:56 pm

They are essentially pager messages sent to MDTs which have the capability to decode the POCSAG protocol (see key features in pic)

Image

I'm in the North West and monitor 153.350 MHz regularly. It is full of dispatch messages for North West Ambulance Service, Lancashire FRS, Greater Manchester FRS with other users being Network Rail (Integrated Control Centres), South Western Ambulance Service, Surrey FRS, Hampshire FRS etc.

If you know of some of the terminology used in the RNLI dispatch messages you could set a text filter instead of looking for specific capcodes. My filter file has 7 filters for Fire & Rescue Services and 304 AMPDS codes for Ambulance services.

Image
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Re: PDW Pager Decoder

Postby welshmonitor » Mon Mar 12, 2018 1:13 pm

Thanks for the reply mr-erratic

Just as I thought it is an MDT link, that would account for the number of medical dispatch msgs that I get, I dont get to see many Fire/Rescue service msgs, just a few each day really.

Is it easy to obtain a list of capcodes or is it just a matter of noting down the ones that appear on the main window when something close/interesting appears?
Secondly do you know if all Fire/Rescue services use this form of transmission for MDT?? If so then I can try to find the frequency & capcodes for my local Fire/Rescue service.

I seem to get the best decoding & number of msgs on 153.0250MHz, I have tried other frequencies in the 153-154 MHz area, but dont get good results with decoding.

Thanks & Regards

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Re: PDW Pager Decoder

Postby LincsVRS » Mon Apr 09, 2018 8:10 pm

Interested in this thread as from googling I am yet to see anyone confirming they have 100% Decoded RNLI Pagers. The frequencies I've pulled out of google so far are:
153.000
153.075
153.0250
153.400
153.3375
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Re: PDW Pager Decoder

Postby geoffsearle » Fri Aug 17, 2018 4:28 pm

RNLI cap codes are here: http://www.transmission1.net/viewtopic.php?t=29246
It is an old list but most still up to date.

I’m trying to run PDW with a 3.5 phono jack from my receiver into the microphone jack on my PC, but can’t get anything!
Any advice on setup please?
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