Hey, sorry for not clarifying further and for using this group but I couldn't really find a lot of useful information on -user and it seems that more topics about rtldavis can be found here.
I do have quite a lot of experience with rtl dongles (I have about 4 of them active and capturing stuff in different bands), so I know that the problem is not related to that but specifically to rtldavis and/or the associated GO environment. As a matter of fact I use the same dongle to successfully receive data from a Oregon weather station with weewx (using rtl_433), so, as you said, the rtl toolchain is indeed working. I'm indeed in the EU so the frequency should be good (the ISS is also the EU version). *Guido Cioni* On Tue, Jul 19, 2022 at 1:56 PM Greg Troxel <[email protected]> wrote: > > [I'm answering here, but really this belongs on -users!] > > Guido Cioni <[email protected]> writes: > > > I have installed rtldavis as advised > > here https://github.com/lheijst/rtldavis and also took care of > compiling my > > own librtlsdr as advised > > here > https://groups.google.com/g/weewx-development/c/L5Lt8x87I_s/m/PP5AdFnQAQAJ > . > > After doing that I don't get anymore the message "Allocating 1 zero-copy > > buffers". > > Unfortunately it still does not find the signal from my Vantage Vue ISS > > that I just turned on with the battery. > > You didn't say what other testing you have done. I would recommend > installing rtl_433 and listening on 433.92 MHz, 315 MHz, 915 MHz if in > the US, and some other set if you are in a different ITU/regulatory > region. (One of the main rtl_433 contributors is in .de, so the docs > should have good hints for Europe (868 MHz?) -- but basically I mean the > license-free frequencies.) > > I hear quite a number of devices that aren't mine. This will let you > know if your dongle and toolchain is working. You can also assess > frequency stability. The cheap dongles are cheap! I have two of those > and one "NESDR SMArTee v2" which has a TCXO. > > Your log shows 868 MHz. That seems like EU, and I wonder if you are > sure that your ISS is the EU version. They are on 915 in the US. > > I also hear people say that the dongle should be remoted from the RPI > via a USB cable, to reduce noise. > > Take the pi out to 10 feet away from the ISS, line of sight, and try it > there. > -- 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/CAJfSxXvPX9SnmdiuUrJAGwKni7NH0fjyyi-0CQ5Tx-SfEwnH%2BA%40mail.gmail.com.
