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Auto antenna not working on 20 meters

Jim WA9ABB Member
edited January 2020 in FLEX-6000 Signature Series
My auto antenna tuner suddenly does not work on 20 meters. All other bands are fine. When you try to auto tune on 20, it goes into a 1 to 2 second aborted cycle and gives a successful tune indication. But there is no power output when you click on the Tune button no matter where you move the tune power slider. Also no SWR is indicated. I have tried two different antennas with different feed lines. The two antennas worked fine till this evening. I have powered the 6700 down and disconnected the power cord several times with no resolution of the problem. I have closed and reloaded SSDR.  I have tried opening and closing new slices and get same results on all slices. I usually operate digital modes (psk31 and JT65) and only run15 to 20 watts. Reception is fine on all bands including 20 meters.


  • Jim WA9ABB
    Jim WA9ABB Member
    edited January 2020
    Additional testing with dummy load shows no output on 160 (never used before) or 20 meters. Must be some problem other than the auto antenna tuner. All remaining HF bands have full output into dummy load. ANT1 or Ant2 connections have same symptoms.
  • Peter
    Peter Member ✭✭
    edited May 2014

    Hi Jim,

    Have you tried resetting the radio.
    Hold the ok button on the front of the rig whilst powering on will reset the radio to factory defaults.


  • Ernest - W4EG
    Ernest - W4EG Member ✭✭
    edited January 2015

    That is exactly what I had to do.

    Everything worked well after that.

  • Tim - W4TME
    Tim - W4TME Administrator, FlexRadio Employee admin
    edited March 2017
    I have converted this topic to a support HelpDesk ticket (http://helpdesk.flexradio.com) for expedited issue resolution.  If anyone else is experiencing an issue similar to this one, please submit a HelpDesk support ticket for issue resolution.

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