Hi there all! Long time reader here; for years, and I learned a lot. Now I an facing a strange and interesting DMR channel which prompted me to post.
I am using the latest DSDPlus FastLane release and everything works fine decoding many DMR channels in my area and a P25 Simplex (I think) channel - but the P25 is for another post.
The DMR Channel in question is mainly data on DCC-1 and sometime Voice on DCC-5. It is strange because I cannot understand what kind of data is being sent. If it is some kind of telemetry or messaging then I am not interested at all, but if it is some kind of control channel then I am interested if I can understand the topografy of the network. Mainly there is data traffic, some time only voice, and sometimes data+voice. In the last scenario DSD+ goes mad and scrolls a lot of errors. No errors if it is only voice or only data. Voice decodes fine and clear - data scrolls without errors but I cannot understand what kind of data.
I've managed to record the raw input of DSD+ during an episode, which I uploaded to zippyshare @
Zippyshare.com - DSDPlus-Raw-Input_2017-09-10@151210.wav
Also I am attaching two screenshots. One of the signal on SDR# and the other of the DSD+ windows during the registration of the above audio file. On the second screenshot, the area with red rectangle on the DSD+ Event Log window is what it logs during the registration.
Is there anyone that can help me understand what kind of DMR Channel is this?
Thanks in advance,
Ben
I am using the latest DSDPlus FastLane release and everything works fine decoding many DMR channels in my area and a P25 Simplex (I think) channel - but the P25 is for another post.
The DMR Channel in question is mainly data on DCC-1 and sometime Voice on DCC-5. It is strange because I cannot understand what kind of data is being sent. If it is some kind of telemetry or messaging then I am not interested at all, but if it is some kind of control channel then I am interested if I can understand the topografy of the network. Mainly there is data traffic, some time only voice, and sometimes data+voice. In the last scenario DSD+ goes mad and scrolls a lot of errors. No errors if it is only voice or only data. Voice decodes fine and clear - data scrolls without errors but I cannot understand what kind of data.
I've managed to record the raw input of DSD+ during an episode, which I uploaded to zippyshare @
Zippyshare.com - DSDPlus-Raw-Input_2017-09-10@151210.wav
Also I am attaching two screenshots. One of the signal on SDR# and the other of the DSD+ windows during the registration of the above audio file. On the second screenshot, the area with red rectangle on the DSD+ Event Log window is what it logs during the registration.
Is there anyone that can help me understand what kind of DMR Channel is this?
Thanks in advance,
Ben