Hi Rich,
Thanks for the correct github repo.  There are two github repos that have 
very similar names.  The first repo (
https://github.com/lheijst/weewx-rtldavis) installation instructions are 
missing a few things.

https://github.com/lheijst/weewx-rtldavis

*https://github.com/lheijst/rtldavis <https://github.com/lheijst/rtldavis>*

After I installed using the repo you suggested I got the driver compiled 
and was able to run it stand alone.  It soon it found the ISS transmitter 
and I thought things were good.  I rebooted the RPi and ran it again and it 
doesn't seem to be doing anything.

pi@raspberrypi:~/work/src/github.com/lheijst/rtldavis $ $GOPATH/bin/rtldavis 
-tf US
18:54:36.723394 rtldavis.go VERSION=0.12
18:54:36.724355 tr=1 fc=0 ppm=0 gain=0 ex=0 maxmissed=51 actChan=[0] maxChan
=1
18:54:36.725198 BitRate: 19200
18:54:36.725323 SymbolLength: 14
18:54:36.725403 SampleRate: 268800
18:54:36.725485 Preamble: 1100101110001001
18:54:36.725561 PreambleSymbols: 16
18:54:36.725638 PreambleLength: 224
18:54:36.725713 PacketSymbols: 80
18:54:36.725786 PacketLength: 1120
18:54:36.725860 BlockSize: 512
18:54:36.725934 BufferLength: 2048
Detached kernel driver
Found Rafael Micro R820T tuner
18:54:37.234946 Hop: {ChannelIdx:0 ChannelFreq:902419338 FreqError:0}
Exact sample rate is: 268800.001367 Hz
18:54:37.425818 GetTunerGain: 0 Db
18:54:37.425898 SetFreqCorrection 0 ppm Successful
Allocating 1 zero-copy buffers
18:54:37.430642 Init channels: wait max 135 seconds for a message of each 
transmitter
18:56:53.244105 Init channels: wait max 135 seconds for a message of each 
transmitter
18:56:53.244325 Hop: {ChannelIdx:0 ChannelFreq:902419338 FreqError:0}

I moved the rtl-sdr dongle to a PC and ran SDRsharp with no issue.  Is 
there any additional debugging that can be done from the command line?

Thanks,
Patrick

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