Hi Luc, I'm trying to get rtlsdr receiving on my EU (UK) VP2 and am not getting any data when testing with $GOPATH/bin/rtldavis I notice that the receiver tuner gain appears to be set to 0 Db If I use the RTL dongle in Windows and use SDR# and tuner gain to 0, then it is as deaf as a post and needs some gain for it to receive signals. Can you change the tuner gain? I know from other uses in Linux, it is possible to set gain(s) or AGC.
Google turns this up... https://github.com/bemasher/rtldavis/issues/3 (2nd post down with possibility to change gain) My output so far ... pi@sheevaplug:~$ $GOPATH/bin/rtldavis 16:37:43.031432 rtldavis.go VERSION=0.11 16:37:43.033277 tr=1 fc=0 ppm=0 ex=0 maxmissed=51 actChan=[0] maxChan=1 16:37:43.037735 BitRate: 19200 16:37:43.038632 SymbolLength: 14 16:37:43.039369 SampleRate: 268800 16:37:43.040329 Preamble: 1100101110001001 16:37:43.041106 PreambleSymbols: 16 16:37:43.042106 PreambleLength: 224 16:37:43.043029 PacketSymbols: 80 16:37:43.044103 PacketLength: 1120 16:37:43.044990 BlockSize: 512 16:37:43.045873 BufferLength: 2048 Detached kernel driver Found Rafael Micro R820T tuner 16:37:43.510046 Hop: {ChannelIdx:0 ChannelFreq:868077250 FreqError:0} Exact sample rate is: 268800.001367 Hz 16:37:43.701273 SetFreqCorrection 0 ppm Successful 16:37:43.702261 GetTunerGain: 0 Db 16:37:43.707200 Init channels: wait max 17 seconds for a message of each transmitter 16:38:01.658391 Init channels: wait max 17 seconds for a message of each transmitter 16:38:01.690025 Hop: {ChannelIdx:0 ChannelFreq:868077250 FreqError:0} 16:38:19.641552 Init channels: wait max 17 seconds for a message of each transmitter 16:38:19.673082 Hop: {ChannelIdx:0 ChannelFreq:868077250 FreqError:0} 16:38:37.604817 Init channels: wait max 17 seconds for a message of each transmitter 16:38:37.636377 Hop: {ChannelIdx:0 ChannelFreq:868077250 FreqError:0} 16:38:55.555271 Init channels: wait max 17 seconds for a message of each transmitter 16:38:55.586802 Hop: {ChannelIdx:0 ChannelFreq:868077250 FreqError:0} 16:39:13.509975 Init channels: wait max 17 seconds for a message of each transmitter 16:39:13.579969 Hop: {ChannelIdx:0 ChannelFreq:868077250 FreqError:0} this repeats endlessly Nigel.
