Thom,
I am ignoring your request for a private email - but I believe I can
help, and there may be other K1 users out there who may want similar
information.
First I need to ask what specifically are you having trouble with in the
transmit alignment.
If it is that you cannot adjust the pre-mixer and RF bandpass filters on
the band board, all I can say is that you should re-do the receive
alignment with a strong signal source of a known frequency within the
tuning range of the K1. Although on-the-air signals may be sufficient,
they may not tell the entire story.
First make certain the BFO is adjusted properly to peak the FL3 passband
at your preferred sidetone pitch.
Then turn the switch on the bottom of the K1 board to the TEST position
and adjust the TX Offset trimmer so the audio frequency is the same as
your sidetone pitch (use SPOT to zero beat). Spectrogram is useful in
setting te audio pitch properly. You can download Spectrogram from my
website www.w3fpr.com. Scroll down on the opening page for the links.
After doing that, re-do the Premixer and RF Bandpass adjustments in
transmit mode with the OUT parameter set to 1.5 watts. Adjust for peak
output power on each band.
I can do the alignment/repair/calibration of your K1 if you do not want
to pursue it on your own.
You can send me a private email and I will send you my service form.
73,
Don W3FPR
On 11/20/2017 8:11 PM, Thom wrote:
I built my K1 and I was so careful to make sure I did everything right.
I have the receiver aligned but for some reason I cannot get the
transmitter to align at all.
I do not have the time, with everything going on, to try and
troubleshoot this thing.
I would like to find someone I can send this radio to and get it up and
running like it should.
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