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TNF trick

Ken - NM9P
Ken - NM9P Member ✭✭
edited June 2020 in New Ideas
While waiting for ANF to be perfected, I have a little trick for the TNF that I sometimes use when rag-chewing with the guys on 40/75 meters. I will often keep my pan adapter zoomed so that the conversation takes up 1/3 or more of the pan. Then I create a TNF and drag it just outside my RX passband, usually to the opposite sideband. Then whenever one of the "rude crew" begins tuning up on our frequency, or jamming us, I simply drag the TNF on top of him. It is faster than creating a new one when needed... And unfortunately on those bands it is ALWAYS needed at some point during the QSO! Fast, simple, and doesn't distort the audio like the ANF does.

Comments

  • Terry K8EET
    Terry K8EET Member ✭✭
    edited July 2016
    I've also been doing that, Ken. I find it also cuts down a little noise.
  • Steve W6SDM
    Steve W6SDM Member ✭✭
    edited June 2020
    In the Flex SDR world, that's what we call carrying one in the chamber.  :)
  • Ken - NM9P
    Ken - NM9P Member ✭✭
    edited December 2016
    Yes. And we can chamber one above and another below and be ready with both barrels...
  • Bill -VA3WTB
    Bill -VA3WTB Member ✭✭✭
    edited December 2016
    Ken, I will try that on the 3000. I have never found a perfect setting for the ANF and it distorts a little all the time. I did find a setting for the NB and it works amazing, kills the noise and NO distortion, but it took some time to find the sweet spot.


  • Ken - NM9P
    Ken - NM9P Member ✭✭
    edited December 2016
    Please share your numbers. I would like to try them on my 1500.
  • Bill -VA3WTB
    Bill -VA3WTB Member ✭✭✭
    edited December 2016
    I will check when I'm home, and post them here.
  • Bill -VA3WTB
    Bill -VA3WTB Member ✭✭✭
    edited December 2016
    Hi Ken. My NR settings
    Taps 85
    Gain 16
    Delay 10
    Leak 4

    You can change this, but this is were I find good performance.
  • Lee
    Lee Member
    edited January 2015

    I find the TNF does distort the audio some (no I don't have it real wide)

    But less than the useless (close anyways ) NR

    73,

    Lee

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