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Showing results for tags 'paging'.
Hi Folk, I am using RTL-SDR to take dump of cell tower located in my region. Till now,I am able to take GSM incoming call dump which is working perfectly OK. Now, , my goal is to analyze GPRS connection initiation (GPRS attach) and corresponding signaling data. I have tried the scenario by switching OFF and then ON the mobile data but I couldn't see any packets related to GPRS. Is there something I am missing?
Hey guys, I have been following along for a while and was happy to see some sdr action enter into the scene. I live in the north bay and have been watching some of the paging systems that are around here. Typically these are high power stations (some low band VHF, some High band VHF, some 400Mhz but mostly 800mhz) so getting a strong signal is easy with a stock rtl-sdr antenna. I am using PDW in windows (http://www.discriminator.nl/pdw/index-en.html). it may be worth while for members of this forum to check out. The amount of data that pours over the air from these is amazing. They send out data that isn't just local to the area but often is from other parts of the state. I have seen personal medical information get relayed from one medical staff to another during shift changes, status of equipment get sent out to techs (servers, HVAC, communication gear), Basketball game stats, Names of clients to be picked up by taxi services with contact numbers etc. I don't know if pagers are so old school they have been over looked or people just aren't interested in what they see but it seems to me that there is potential here. I would think that people smarter than me could write a program to sort this out by sender and start logging lots of info on a target. Check it out and see what you think. Keep the segments rolling, good stuff!