开云体育

FWIW I have not had a real need for any of the N7NB mods. The PBT is much more effective than an audio filter. What will help is a good outboard DSP. My favorite is the ClearSpeech base but I also use a JPS NIR-12 which sill slice signals to within an inch of their lives. But they are an augment to the PBT, not a replacement.

I'm not a big CW man so QSK has never been attractive to me. To each his own.

Fan controllers are sexy but IMO the temperature stability inside the radio will likely be less compromised unless you put a temperature sensor on the PTO.

On Mon, 28 Apr 2025 04:48:39 -0700
"Craig W8CS via groups.io" <craig_severson@...> wrote:

Curious if anyone has done any of these mods ( /g/DRAKE-RADIO/files/TR-7/TR7%20Visible%20modification.pdf ) to their TR-7 as suggested by Scott/N7NB?

Dug out the "Family Affair" ( ) book the other day and saw the list of mods, same as the article that Jim S posted.

The audio filter sounds like a no-brainer as I find myself engaging PBT just to tone down the harsh highs.

Would love to add true QSK as well although looks challenging.
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Craig/W8CS
Greenville, SC

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73

-Jim
NU0C