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TG- Low RF power

Mr Radio
Mr Radio Member ✭✭✭
in Power Genius XL Amplifier

Setup: F6700, PGXL,TG

I use an Endfed antenna about 150 ft long configured as an inverted L It works fine on 40m band and higher.There is a problem on 80 and 160m band. TG displays message>Low RF Power< and turning is aborted. In the same time PG displays message >PGXL is ready for transmissions< which is obviously false. Turning RF power is set to 25W and I am reluctant to increase it.

Any comments and suggestions about this matter?

Tom

Answers

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

    Have you tried a higher power?

  • WX7Y
    WX7Y Member ✭✭✭✭

    As Mike commented tune at a higher power level, I always tune at around 45Watts with the TGXL.

    A half wave for 80 meters is approx. 132' and 160 Meters is 264' so it should tune fine on 80 Meters if your close to 132' long but your really pushing it trying to tune it on 160 Meters, even if it does tune most of your signal will be gobbled up as heat on your RF Transformer, feedline and tuner.

  • bahillen
    bahillen Member ✭✭✭

    Be sure in testing you only have one slice open. It often happens to me that the Tuner Genius tunes a different antenna than what I thought because I didn’t change the focus.

    Check the antenna SWR on all bands before the TG to see what you are working with on all bands. Better yet do your test with a dummy load. Also you can bypass the tuner and zero in on the issue into the dummy load.

    73

    Bill

    W9JJB

  • Mr Radio
    Mr Radio Member ✭✭✭

    Thanks for your comments/suggestions, OMs.

    I am somewhat reluctant to use a higher turning power, but I will try as OM Bret suggest.


    Tom

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

    What radio? How do you have it connected?

    Dave wo2x

  • JasonSt
    JasonSt Member ✭✭
    Tom -

    I had the same problem last night—although the radio said it was transmitting, it did not send any RF to the antenna, tuner, or amp. I power-cycled the radio and reset it by holding the power button until it turned blinking white, and that fixed the problem.

    Jason KD9ZHF

    > @"Mr Radio" said:
    > Setup: F6700, PGXL,TG
    > I use an Endfed antenna about 150 ft long configured as an inverted L It works fine on 40m band and higher.There is a problem on 80 and 160m band. TG displays message>Low RF Power< and turning is aborted. In the same time PG displays message >PGXL is ready for transmissions< which is obviously false. Turning RF power is set to 25W and I am reluctant to increase it.
    > Any comments and suggestions about this matter?
    > Tom
  • Mike-VA3MW
    Mike-VA3MW Administrator, FlexRadio Employee, Community Manager, Super Elmer, Moderator admin

    I am somewhat reluctant to use a higher turning power, but I will try as OM Bret suggest.

    As per the TGXL manual, it requires a minimum of 20 watts to tune.

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