Don Wilhelm wrote:
With both low power out and low current drawn, there is clearly not enough
energy being developed by one of the transmit stages.
OK, this is kinda annoying, and kinda good news.
[...]
Once you have localized the problem to one stage, we can help you localize
the component
Nick,
In your original probelm description, you did not state how much power the
K2 display was indicating - and I would tend to believe it indicated that
the power was near the requested power value.
Of course, the actual power was not that high, but since the base K2 uses an
RF probe type
Don Wilhelm wrote:
In your original probelm description, you did not state how much power the
K2 display was indicating - and I would tend to believe it indicated that
the power was near the requested power value.
Think it was indicating HIGH actually. If I remember right, set at 5W,
it was
Nick,
Read that paragraph with the undertanding that the most important shared
circuits are the PLL Reference oscillator, the VCO, and the BFO stages - and
they are also measured with the RF Probe even for receiver testing - the VCO
and BFO should also be tested for correct frequency using CAL
K2 #5209, Set at 5W, TUNE, I'm drawing only 1.0A, and should expect 1.3
to 1.6. Similarly, set at 10W TUNE, I'm drawing 1.02A, not 1.8 to 2. I'm
pretty sure I'm not putting out the power I should be, and DL1+DMM also
implies I'm only putting out about 2-4W, not 5-10. This would be at
7100kHz
Nick,
With both low power out and low current drawn, there is clearly not enough
energy being developed by one of the transmit stages.
If you have not already, build up the RF Probe that came with the K2 kit and
do the Transmitter Signal Tracing steps detailed in the Troubleshooting
Appendix of
Don and Nick,
Doesn't the K2 drop the power to 2 watts during tune? Or am I thinking
of a K2 with the ATU?
I know that I was bitten by this once - I thought something was wrong
with my K2 when I was
trying to tune it up with a new antenna and I had a power meter in
line. I had set the K2 to
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