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No RF output from Flex 8600

Bob KN4HH
Bob KN4HH Member ✭✭✭
in FLEX-8000 Signature Series

Last night, I powered down the 8600. This morning, I powered up the radio as normal and all indications were as usual. When I tried to enter the Tune mode, PTT activated, display shows a carrier, however, no RF output. I moved the Tune Slider to max and still no output. I entered the LSB mode and I see the normal modulation envelope on the display.

Receive.jpg Tune Carrier.jpg SSB Modulation.jpg

I have done a reset (power down and removed power cable). Any other suggestions.

Bob, KN4HH

Answers

  • Mike-VA3MW
    Mike-VA3MW Administrator, FlexRadio Employee, Community Manager, Super Elmer, Moderator admin
    edited August 2025

    It sounds like you have rebooted, but did you also do a reset? They are 2 different things.

    I see RF compression, and your Mic level is pretty hot, but maybe it is just the meters not working. Do you have an external watt meter?

  • Bob KN4HH
    Bob KN4HH Member ✭✭✭

    I used Tim’s reset procedure. No change. I connected a bird wattmeter to the radio and terminated into a dummy load. No RF present.

    I checked all bands. On 80 meters, with tune power set to max,no RF. However, the SWR indicator on the SmartSDR display showed 1.5:1 and no indication on the output indicator.

  • Trucker
    Trucker Member ✭✭✭✭

    Help Desk ticket time.

    James

    WD5GWY

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