Don
Thanks for the suggestion but that does not fix/improve the situation.
Looking at it further I also have spikes at roughly 23, 30 and 52Khz
above and below my cursor. The 52 Khz signal is at S4 the other two are
about S2. I can turn on the PX3 and look at the display with no antenna
connected and see these spikes on every band. If I disconnect the cables
to the KX3 the signals are still there but go down to S1 in strength. I
have even tried running both on separate battery supplies but the
problem is the same. The spikes are there even if I disconnect the I/Q
cable but the spikes are very small, as soon as the I/Q cable is plugged
in the spikes increase.
Larry
n0sa
On 9/9/2016 9:22 AM, Don Wilhelm wrote:
Larry,
I suspect hum, buzz, and noise pickup on the RX I/Q cable shield
between the KX3 and the PX3.
Try "Bonding" - run a heavy wire or strap between the KX3 and the PX3
in parallel with the RX I/Q cable. The shield from old RG-8 coax
works well.
73,
Don W3FPR
On 9/9/2016 10:12 AM, Larry Naumann wrote:
I have just recently noticed that there is a continual spike that
follows my cursor. It is internally generated. In CW mode it is away
from my tuned signal by the amount of my CW side tone setting and can
be switched to above or below the cursor depending on if I am in CW
or CW-R.
These spikes occur with no antenna connected and are S4 to S5 in
strength depending on band.
I did the Opposite Sideband Rejection adjustment but show no
improvement.
I think something is either set wrong or I have an issue.
Any help or ideas are appreciated.
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