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Keying Delay when using Flex 6400M + HRD + WSJT-X

David DeVos KF8QL
David DeVos KF8QL Member ✭✭
in Third-Party Software
As recommended I have WSJT-X connect to HRD, and then HRD connects to the Flex 6400. I did this to use the HRD alert function which shows me what contacts are new to me.
The problem is a over 1 second delay from the time I see WSJT showing Tx to the time the radio goes into transmit. This is bad on FT-8, but I've been making contacts. It's REALLY bad on FT-4 because of the shorter transmit time.
I'm using BktTimesync for my PC clock, and that is working well. But I don't understand why I'm getting so much delay!

Best Answer

  • Mr Radio
    Mr Radio Member ✭✭✭
    Answer ✓

    OM David,

    Open CAT application and create PTT type COM port. Note its number.

    Open RADIO setup in WSJT-X and in PTT settings select this port and select RTS.

    You can also activate VOX in SSDR and select it WSJT-X RADIO setup, but I found it not very stable and responsive at times.

    I very much prefer JTDX improved version rather than WSJT-X.


    Tom

Answers

  • David DeVos KF8QL
    David DeVos KF8QL Member ✭✭

    Thank You Mr. Radio - that works much better!

    73 de KF8QL

  • David Decoons, wo2x
    David Decoons, wo2x Member, Super Elmer Moderator

    I personally use CAT in WSJT-X for PTT instead of PTT Com port. The commands from SSDR CAT to radio are the same and one less com port to clutter the CAT panel.

    73 Dave wo2x

  • Mick W8BE
    Mick W8BE Member ✭✭

    Dave is spot on. You only need HRD for logging when using WSTJX. Create a CAT port for tcp on 60001 and then set WSJTX to use localhost:60001 for the com and enable CAT .

  • Mick W8BE
    Mick W8BE Member ✭✭

    To follow up on my post. Here are the WSJT-X settings for the radio.. In this case I use port 60000

    image.png

    and the SmartCAT config…

    image.png

    image.png

    Now WSJT-X will control your PTT and and band changes.

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