Messages

1

PDW Support / Re: I have some question about POCSAG decoding

« on: 25 Nov 2018, 14:17:23 »

hi
I use POC32 to solve the problem. When I receiving the same signal, the PDW displays scrambled code or tone only, but POC32 can decode normally. I don't know what happenen, but I hope to upgrade the PDW again.

2

PDW Support / Re: I have some question about POCSAG decoding

« on: 23 Nov 2018, 15:50:45 »

Thank you for your reply to my message:
For the signals from trains,I can tell you some details
Frequency:821.2375MHz
Coding mode?POCSAG
Rate:1200bps
Data transmission mode: synchronous data transmission mode.
=======================================
When someone else's computer receives and decodes
The content displayed by PDW is ?POCSAG-2 NUMERIC 1200 XXXXX XXX XXXXX?XXX means only the right number of messages
=======================================
In my computer
When i received the signal,Only POCSAG1200 will be displayed above the PDW software.
nothing has been decoded.I don't know what's going on.Maybe there's something wrong with RTL-SDR.

3

PDW Support / I have some question about POCSAG decoding

« on: 22 Nov 2018, 14:12:49 »

Hi everyone:
I have some questions about POCSAG decoding. Our country's railways and high-speed railways have a device that uses POCSAG to pass their position to ensure the safety of railway workers. Similar to the ADS-B of a civil aircraft, I use RTL-SDR to receive and use PDW. 3.2b01 decoding, but my computer can not decode, I can try it on other people's computer, the detailed parameter of decoding success is ?POCSAG-2 NUMERIC 1200?, if anyone can help me, please contact me thank you!