There is no crystal on 14 MHz. Because 5 + 9 makes 14. No need to
heterodyne the PTO its already in the right place. Could be the mixer
balance is off so three times the PTO is coming out the PA in the 15 MHz
region to confuse tuner. You have multiple radios, you could listen for
it there. I didn't look at the schematic that closely to see how they
caused the PTO input to feed through, probably stuff DC into the
balanced mixer to unbalance it in place of the RF from the crystal
oscillator. I didn't check the transmit mixer for a balance adjustment.
73, Jerry, K0CQ
On 9/10/2010 7:55 PM, tubsc66@aol.com wrote:
Yes, I know this is a silly sounding question, I did some more testing and it
seems to an issue on 20 meters only, I can tune
40, 15 and 10 ( I dont have any WARC bands on this radio). Is it conceivable
that there's an issue with the 20 meter crystal?
I have an Omni C that loads on 20 just fine... Thanks for the input fellas,
those of you that think Im a numbskull, you're
right!
73's
Chris KC5IIE
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