(The following would be a nice mod to be built into the radios. The f/w could prevent accidental Tx.)
I don't know if anything like this has been mentioned before. Furthermore, I don't know how many people use a product like the MFJ Matchmaker (TM) to tune their manual tuners. A similar product is also available by at least one other mfg. I happen to have the Matchmaker.
I use open-wire feedline, so I find the Matchmaker very handy. It emits spread-spectrum noise, but doesn't transmit RF. With the unit turned on, one adjusts the tuner for minimum S-meter reading on the radio's frequency. I initially make a quick-sheet of settings for each 50 Khz across the bands and use it to get me in the ball-park when I change freqs. Then I tweak the tuner.
Now to the point. With the P3, a nice Vee occurs in the noise at the center of the screen (vfo-A) when the tuner is adjusted correctly while the Matchmaker is turned on.
That is very nice when the band is crowded and the signals cover up the noise from the Matchmaker. I don't have to find a quiet spot to tune. I can now quickly tune the tuner right on a frequency in use without causing any interference by watching the P3. It is much quicker for 'search and pounce'.
I have taken a picture of what the Vee looks like if anyone is interested. They can email me offline at
[hidden email]
Dick, n0ce
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