Regenerative CW

Hi,

I read with interest Joe KF7CX article about regenarative CW.

I struggled a little bit to find out all about circuitry, but finally I think i have a good idea of how to build a complete interface.

I have a small question about the Youtube demonstration : there is a pot to vary sidetone frequency, and you can hear it very well on the video audio. But Hipermite is a very narrow and fixed frequency... So is this pot really usable?

Thanks for advice.

Gerard F6EEQ

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Permalink Reply by Chuck aa0hw on January 2, 2020 at 12:50pm

Hi Gerard

i just asked KF7CX about his REGEN range of pitch and here is what he replied to me in an email:

FROM KF7CX

"I'd say that the 500 Hz - 900 Hz range for my iCW Regneration box is probably about right. It's based on the frequency adjustment pot in the audio oscillator that precedes the Hi-Per-Mite. I think you can push the Hi-Per-Mite bandwidth by driving the filter with enough input so the range can be more than the 200 Hz bandwidth would suggest it should be."

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Permalink Reply by Chuck aa0hw on January 2, 2020 at 1:36pm

ALSO from KF7CX

"Gerard should know that he can build the Hi-Per-Mite to suit a tone frequency range that he might prefer. You might want to send him the attached table."