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Luca Bongiorni luca.bongiorni1 at studenti.unimi.itHi all, just to explain what i mean, i've attached a sample and the log from layer23. http://pastebin.com/pepx0tdv As you can see from the log i got the immediate-assign. and the i can see the slots. The only thing that i could be strange is the signal strength that sometimes is good and sometimes reaches -100 dBm. Here is the gprsdecode's output: http://pastebin.com/p7XrtKAt Obviously i tried other ARFCNs of all operators (with different c118/c123, FTDI cable) and i got always the same behaviour. Have you some hints to suggest? Tomorrow i will try with some DP-L10 and pubblish the relative results. P.S: As i already stated, Nohl's samples are well decoded and showed into wireshark. Regards, Luca > Hi Harald, > > Actually i could use some old phones that supports only GPRS (e.g. t68i, t39m, etc..), but these phones are not enough useful and i will explain why: > > - i would like to use a phone that has field-test engineering; > - i would like to set the phone to camp only in a fixed ARFCN. > > I was also trying a Pirelli DP-L10, but unfortunately i can only fix the band and not the arfcn. > > > Btw... after a while i finally found how to force my Blackberry to work on GPRS on a fixed arfcn: > > - Select an arfcn; > - Lock to this cell; [ http://tinyurl.com/3dcc6vm ] > - Disable Uplink 8-PSK; [ http://tinyurl.com/3dxp85d ] > > Finally the phone is ready to start the tests. [ http://tinyurl.com/3rhldrn ] > > > As you can see, that engineering field-test is very useful because is showing which Coding Scheme and TS are used. > > > Unfortunately at this point... even if i tried a lot of times, i could see imm-ass, the TS, but when i'm trying to decode the dumps... nothing is decoded and i cannot even decode third-party sessions that obviously i could find on the same arfcn that i'm using. > > So, at this state of art, I could decode only samples released from Nohl. > Someone else is having same problems? > > > Regards, > > Luca > -------------- next part -------------- A non-text attachment was scrubbed... Name: bursts_20110729_2215_112_1463626_0e.dat Type: application/x-ns-proxy-autoconfig Size: 49100 bytes Desc: not available URL: <http://lists.osmocom.org/pipermail/baseband-devel/attachments/20110829/21a6333c/attachment.bin>