Welcome to the FlexRadio Community! Please review the new Community Rules and other important new Community information on the Message Board.
Need the latest SmartSDR or 4O3A Genius Product Software?

SmartSDR v3.9.19 and the SmartSDR v3.9.19 Release Notes
SmartSDR v2.12.1 and the SmartSDR v2.12.1 Release Notes

The latest 4O3A Genius Product Software and Firmware
If you are having a problem, please refer to the product documentation or check the Help Center for known solutions.
Need technical support from FlexRadio? It's as simple as Creating a HelpDesk ticket.

Where can i find the format of the UDP message that SmartSDR logger send when i log a QSO

Eric_M0REQ
Eric_M0REQ Member ✭✭
in SmartSDR for Mac
I am trying to write a utility to receive the WSJT-X format UDP grams so that i can log the QSO in CloudLog but i can't find the format anywhere

Answers

  • KD0RC
    KD0RC Member, Super Elmer Moderator

    Hi Eric, The radio uses UDP for discovery and for audio/video (Vita-49 protocol). All else goes via the TCP/IP API.

    Take a look at the API documents to get an idea of how it works.

    https://github.com/flexradio/smartsdr-api-docs

    There is also a C# FlexLib that you can use to access the API from a Windows DotNet environment. I recommend this if you are programming for Windows.

    FlexLib: Class List (flexradio.com)

    Node Red is also available. Dave, WO2X and Alan, WA9WUD have built some sophisticated flows for Node Red that you might be able to capitalize on. Sorry, I don't have a working link for Node Red at the moment, but someone here can point you in the right direction if you ask.

  • AA5SH
    AA5SH Member ✭✭
    edited September 2022

    They are defined here in the wsjt-x source code and there are examples also on sourceforge.

    NetworkMessage.txt

    I couldn't paste the link. But just put https at the beginning should get you there.

    sourceforge.net/p/wsjt/wsjtx/ci/master/tree/UDPExamples/

    Good Luck

    Michael, AA5SH

  • AA5SH
    AA5SH Member ✭✭
    edited September 2022

    Sorry wrong hpp file, I added the right one. Starts around like 117 or so.

  • Eric_M0REQ
    Eric_M0REQ Member ✭✭
    Ok thanks I found that the payload in the UDP message is ADIF format. It threw me as it looks a bit like JSON but isn’t. Fortunately CloudLog expects ADIF wrapped in a JSON envelope.

Categories