I found that the instructions for how to route the various cables were a
helpful start, but after a LOT of trial and error I found that in some
cases other positions worked much better. And of course, some positions
work better for some birdies while other positions work better for other
birdies.
On a whim, I even did an amusing experiment where I stuffed the spaces
in the case with carbon impregnated foam (enclosed in plastic bags to
avoid potential shorts) in order to hopefully absorb some of the RF
floating around. Unsurprisingly, it didn't help a bit.
SIG RMV made all the difference in the world for me. Properly done, it
totally removed almost all of the birdies and the two or three that
remained were dropped to very low levels. It was a very clever fix by
the Elecraft team. It did, however, need to be redone when I swapped
out the old synths for the new ones even though I kept the cable
locations the same.
73,
Dave AB7E
On 7/30/2022 9:44 AM, Victor Rosenthal 4X6GP wrote:
SIG RMV can help, but before you do this, look in the manual for
instructions about how to dress the cables to and from the
synthesizers and the SUBRX. Make sure they are plugged in all the way,
too.
73,
Victor, 4X6GP
Rehovot, Israel
Formerly K2VCO
CWops no. 5
http://www.qsl.net/k2vco/
On 30/07/2022 18:33, Michael C. Marx wrote:
Hi All
I have an 11 year old K3 s/n 6xxx. I have noticed lately there seem
to be quite a few birdies pretty well everywhere. This doesn't seem
right. I hear many of them with the antenna connected. The radio is
pretty well loaded and does have the updated synthesizers. Also has
the sub rx. Any ideas of what I should do or do I need to send it
back to Elecraft?
73! Mike WB0SND
Michael Marx SND Tube Sales www.vacuumtubes.com 636-939-9190
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