Gary:
Nothing heard on my K3S that is being produced by my KPA500 {s/n 3519}
on 10M and nothing seen on my P3.
I would go back through each step of the assembly process and make sure
all is correct and all hardware is tight. I do see spikes from other
sources on 10M but these are in the order of -125 dBm. Nothing out of
the KPA500 in Operate mode that I can see or hear.
73
Bob, K4TAX
On 3/9/2019 5:36 AM, Gary NC3Z wrote:
SN 3759 just received 2 days ago (kit form) and put in operational the
station. TX is fine, issue is on RX. It puts out strong spurs on 20-6M
with 10M being the worst. Tested on live antennas and dummy loads,
grounds on and off, all ancillary connectors removed, etc. So far this
is making the use of the upper bands very difficult. Now I know the
KPA500 has been around for a good amount of time so it cant be a design
issue.
I have a message into Elecraft but it's the weekend and wanted to just
run I by the groups to see if there are any ideas, as I mentioned it was
a kit, so I may have messed something up? But one big of diagnosis was I
turned off the backlight display and it reduced the spurs tremendously.
Hopefully this is a one off issue and it can be resolved.
Here is a video of what I am seeing: https://youtu.be/63fEFb3qIqM
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