multiple sdr's 2 for op25 and 1 for adsbx software

Discussion in 'Hardware' started by Jay Dub, Nov 21, 2021.

  1. Jay Dub

    Jay Dub New Member

    I typed up my question and the forum thinks it's spam. There are no websites, no email addresses. What is causing it to think it's spam? So here's a shorter version as I delete content until it takes it.

    I'm running a laptop with Linux Mint 20.2. I have op25 running 2 different rtl-sdr units. That's configured and running fine. I installed adsbx by script method. No worky.

    How/where can I assign the serial number for the adsbx software to use my radarbox flightstick?

    Thanks for any help.
    Jay
     
  2. Jay Dub

    Jay Dub New Member

    Found 3 device(s):
    0: Realtek, RTL2838UHIDIR, SN: 00000002 <-- RTL-SDR for op25
    1: Realtek, RTL2838UHIDIR, SN: 00000004 <-- RTL-SDR for op25
    2: Realtek, RTL2838UHIDIR, SN: 00000003 <-- Radarbox Fligthstick I want to use for adsbx
     
  3. Jay Dub

    Jay Dub New Member

    mlat no pager says:
    Nov 20 21:10:44 opeyserver adsbexchange-mlat[2753]: Could not connect to 127.0.0.1:30005, retry in 30 seconds.

    It says this until it times out.
     
  4. Jay Dub

    Jay Dub New Member

    When I go to the adsbx / myip page it says "no feeder connection". I did a reboot and ditto.
     
  5. Jay Dub

    Jay Dub New Member

    I moved this radarbox sdr from another laptop running mint 20.2 that I used the adsbx script to install and it worked. Makes me think it's trying to use one of my rtl-sdr units that's already in use by op25.
     
  6. wiedehopf

    wiedehopf Administrator Staff Member

    You need a decoder, the adsbexchange install scripts don't bring one to not disturb existing installs of a decoder.
    As you don't have a decoder yet, install readsb: https://github.com/wiedehopf/adsb-scripts/wiki/Automatic-installation-for-readsb

    As described on the above page, the settings are in /etc/default/readsb
    Change the --device 0 to --device 00000003

    Due to particularities i'd recommend using at least double digit serials, so 11 12 13 or whatever.
    This is because the device argument is also used to identify the serial by ascending id starting with 0.

    Best thing to check is obviously the decoder journal logs as described in the readsb install link already provided.
    The feed scripts will work fine once readsb is producing data on port 30005.

    Once you're done and have the local map interface and the feed scripts working, you should also check for MLAT sync:
    https://map.adsbexchange.com/mlat-map/
     
  7. Jay Dub

    Jay Dub New Member

    Thank you Mr. Wiedehopf. That took care of it. Once configured it pulls from the proper sdr. I'm showing on the mlat map again.

    Thanks again,
    Jay