Pete,
Any chance you can borrow a P3 to see if those spurs are present both
with and without the computer?
That would be a good test if you can manage it.
The other thing that may help is to bond the K3 to the other gear,
following the paths of the IF out coax and also the audio cables. Bond
from box to box rather than trying to "ground" everything to a single
point (which may cause additional noise pickup. Use the information on
that subject from Jim Brown K9YC.
If everything else other than the K3 is plastic cased, bond to BNC
connector shells and/or computer I/O connector jackscrews.
73,
Don W3FPR
On 11/27/2018 9:44 PM, N4ZR wrote:
Trouble is, my computer supplies N1MM+, including its spectrum
display. Catch 22
______________________________________________________________
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:[email protected]
This list hosted by: http://www.qsl.net
Please help support this email list: http://www.qsl.net/donate.html
Message delivered to [email protected]
