I'd try a couple things, 1. add "-u true" to see if it's picking up any transmitters on any channel. And try specifying a gain value "-gain 338" or so, 0 should be automatic gain, but it never hurts to try to set it yourself. It's odd that it's reporting the SetFreqCorrection as '0' but it obviously knows the correct number, but that's a low enough PPM that it should still be able to lock.
I assume this rtl/antenna has been checked on some other program and frequencies to make sure it's working. -Steve On Wed, Sep 23, 2020 at 2:46 PM Germano Soru <[email protected]> wrote: > Thank you Steve for the quick response. (sorry i think it sent it > directly to your email) > I am using an x86/x64 system. > I have tried with both the one bundled with Debian and the compiled one > linked in the git repo. > > Occasionally the Zero buffer does pop up, there are no errors or > warnings that come with it, just no data seams to be found > > germano@weewx:~$ $GOPATH/bin/rtldavis -tf US -tr 1 -ppm -14 > 22:38:14.085423 rtldavis.go VERSION=0.15 > 22:38:14.094201 tr=1 fc=0 ppm=-14 gain=0 maxmissed=51 ex=0 > receiveWindow=300 actChan=[0] maxChan=1 > 22:38:14.094250 undefined=false verbose=false disableAfc=false > deviceString=0 > 22:38:14.094526 BitRate: 19200 > 22:38:14.094538 SymbolLength: 14 > 22:38:14.094545 SampleRate: 268800 > 22:38:14.094552 Preamble: 1100101110001001 > 22:38:14.094559 PreambleSymbols: 16 > 22:38:14.094566 PreambleLength: 224 > 22:38:14.094572 PacketSymbols: 80 > 22:38:14.094579 PacketLength: 1120 > 22:38:14.094585 BlockSize: 512 > 22:38:14.094592 BufferLength: 2048 > Found Rafael Micro R820T tuner > 22:38:46.554454 Hop: {ChannelIdx:0 ChannelFreq:902419338 FreqError:0 > Transmitter:0} > Exact sample rate is: 268800.001367 Hz > 22:38:46.823028 GetTunerGain: 0 Db > 22:38:46.823774 SetFreqCorrection 0 ppm Successful > 22:38:46.830107 Init channels: wait max 135 seconds for a message of > each transmitter > 22:41:02.643549 Init channels: wait max 135 seconds for a message of > each transmitter > 22:41:02.645021 Hop: {ChannelIdx:0 ChannelFreq:902419338 FreqError:0 > Transmitter:0} > > > On Wed, 2020-09-23 at 14:08 -0700, Steve Wormley wrote: > > If you're using the version from: https://github.com/lheijst/rtldavis > > it should just work provided you told it "-tr US" and provided any > > ppm correction. > > > > Now, the one problem you may have is if you're using the system > > provided librtlsdr, and if it's saying something about Zero Copy > > Buffers, not sure if it's a problem on x86/amd64 but the Raspberry > > Pi's definitely didn't like it. Unless they fixed that you'll need to > > uninstall the system librtlsdr and compile one from scratch per the > > instructions and give it the -DENABLE_ZEROCOPY=0 flag when compiling. > > (Or set LD_LIBRARY_PATH to your version if you don't want to remove > > the system version) > > > > -Steve > > > > > > > > > > > > On Wed, Sep 23, 2020 at 1:06 PM Germano S <[email protected]> wrote: > > > Hello, > > > Just checking in if there is still development on this driver. > > > > > > I was given a used Vantage pro (US) a not to long a ago. I have > > > installed everything as far as i can tell, but rtldavis reports no > > > data being transmitted which makes me think my frequencies are > > > incorrect. > > > > > > I am running on Debian 10 (Buster) with Weewx 4.1.1 along with an > > > RTL-SDR V3 which has been calibrated. I am scanning the frequencies > > > to see if i can find anything. > > > > > > If anyone can give me a bit of further direction or if anyone has > > > succeeded i would be most appreciative. :) > > > > > > > > > > > > > > > > > > On Friday, May 10, 2019 at 5:45:24 PM UTC+1 [email protected] > > > wrote: > > > > Luc > > > > > > > > Is there a way to put the Channel Id, Channel Freq, and Error > > > > into the LOOP packet with the data? I looked through rtldavis.py > > > > but could not find a the spot. > > > > > > > > Rich > > > > > > -- > You received this message because you are subscribed to the Google Groups > "weewx-development" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-development/304359d87fec7cb94a5d40e8819f3e111b419804.camel%40soru.me.uk > . > -- You received this message because you are subscribed to the Google Groups "weewx-development" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-development/CAF47bhF0u6Ng1wHAUiZj-x%2BwH55rmuSM7MUUn7AQXzSo6b7%2Bmg%40mail.gmail.com.
