[Elecraft] Notch Filter/DSP

[Daniel]

Hi to group,

I had a slight hearing problem after listening to my spkr audio from the Elecraft K2.

I got this high pitch noise on top of someone's voice on an HF Frequency.  I tried using my filters and RF gain backed down to get rid of it.  Doesn't work.  

Is there a way that I can notch my audio, like the feature that other factory built radios have.

Could Elecraft design a speaker like the ClearSpeech Am-Com with a Notch button on the side to filter left and right signals to get just the voice?

Or I could just get off of my own seat and do it...

I have no intention to modify my radio unless it is an official mod/change.  But would rather have a plug-in circuit.  Does the KAF2 which I do not have, solve these problems?


Daniel
KG4DNI

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