Jeremy,
Yes, an RF probe would be useful to evaluate the health of the crystal
for 40 meters.
Since those crystals are reliable, I suspect that you have a problem
with the Pre-Mixer Bandpass Filter.
You need to have at least 200mV peak to peak signal (70 mV measured with
an RF Probe) to provide a good signal level to the mixers.
I am on vacation right now, so I do not have the schematics available
right now to give you specific probe points, I can give them Monday if
you have trouble locating them.
73,
Don W3FPR
On 12/8/2016 10:36 PM, Jeremy Klotz wrote:
Hello,
I recently finished the receiver portion of my K1 (40m/20m). I successfully
aligned the 20
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