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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.
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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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