OK John,
disconnect C6 and C7 - desolder and use the common point of C11 and
C41
disconnect C1 and L1 . L1 you need desolder only the start end. Use the
common point going to relay and C142.
connect the two points listed above. You are done. Now check and
see.
I had the similar result in an earlier board. Here is what one looked, no
issue with this board.
Raj
At 31-12-2017, you wrote:
Raj,
Could you suggest a method for bypassing L1-L3? I'm not sure how I would
do that with any temporary change, any approach I can think of would be
permanent and then attempting to reverse the damage later.
And where is the output filter on the board?
Something is definitely off center, I set the Raduino to transmit out of
band and the power tails off in a rather symmetrical pattern centered on
7000khz, with another attachment showing the output power vs
frequency.
Thanks!
John
On 12/29/2017 11:20 PM, Raj vu2zap wrote:
Could be something with L1-3.
Temporarily bypass the filter and try another test.
I have one board with the filter centered a bit and gives less power
higher up the band
but we work only till 7.2MHz.
It could be the output filter also.
Raj
Raj vu2zap