Hi all, I would like to ask you a basic question. I receive the BCCH and CCCH (PCH and AGCH) GSM channels with gsm-tvoid and gsmdecode. I use USRP. For instance, to do that, I type something like:
./gsm_scan.py -p d -r e -c 104 | ../../../gsmdecode/src/gsmdecode -i > myfile.txt The problem is that a lot of messages are missed. While I am receiving I can see warning messages like the followings: sch.c:254 ERR: conv_decode 7 gsmstack.c:162 cannot decode fnr=0x002921c8 ts=0 gsmstack.c:162 cannot decode fnr=0x002921ce ts=0 gsmstack.c:162 cannot decode fnr=0x002921e2 ts=0 gsmstack.c:162 cannot decode fnr=0x002921ed ts=0 gsmstack.c:162 cannot decode fnr=0x002921f1 ts=0 .... ... sch.c:254 ERR: conv_decode 7 gsmstack.c:162 cannot decode fnr=0x00292229 ts=0 sch.c:254 ERR: conv_decode 1 .... The BTS (Base Station) from I am receiving is really near my USRP. What Could I do to solve this? Any Suggestion? Thanks in advance for your time. Cheers Jose
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