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TOMALVORD
TOMALVORD Member ✭
in SmartSDR for Windows
My FLEX-6400 has the inability to transmit RF from 4.010.1 to 5.199.9 MHz.
Windows 11 SmartSDR v3.7.3
I hear modulation from the monitor, see a waveform on the Panadapter and TX Ready shows.
The Turf file opened the transceiver on all other frequencies needed.
Help Desk is getting a 6400 setup to try and duplicate.
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Best Answer

  • Mike-VA3MW
    Mike-VA3MW Administrator, FlexRadio Employee, Community Manager, Super Elmer, Moderator admin
    Answer ✓

    I think this sounds like a hardware issue. The TURF files are pretty solid and others have used the same one without issue or modification.

    Tim will resolve this with you.

Answers

  • Mike-VA3MW
    Mike-VA3MW Administrator, FlexRadio Employee, Community Manager, Super Elmer, Moderator admin

    This sort of issue can only be resolved by the Helpdesk.

    I tested your situation on a 6600, but I was not able to recreate it. The only other information that would be useful would be the exact frequency rather than a range. I tried a dozen frequencies in that range and there was no issue.

    If you use a watt meter on the radio into a dummy load, there is no RF showing on the watt meter? The easy way to test this is to set the Tune to 100%, push the tune button and see if you get 100 watts on the watt meter.

    If you don't have a wattmeter/dummy load, it is something every ham should have for some basic testing. I'd recommend that you do what you can to acquire one. They are very handy.

    73

  • TOMALVORD
    TOMALVORD Member ✭
    Thank you Mike,
    I did the tune into my dummy load. Results were no rf out. I attached an image.
    I'm working with the help desk.
    B)
  • Mike-VA3MW
    Mike-VA3MW Administrator, FlexRadio Employee, Community Manager, Super Elmer, Moderator admin
    edited March 2024

    What happens if you turn DAX off (Blue box, middle right)

  • TOMALVORD
    TOMALVORD Member ✭
    Good morning,
    I tried DAX off, on, output none, or 1 no change as soon as I move the freq out of the dead zone 1 mHz; full output power.
    I think it might be a line or two of the code in the TURF file that opens the transmitter freq range interlock. I don't do programing, but my Tesla is completely controlled with software just as the Flex radio,

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