I had two of them and both had RFI, on 12 meter band, it was a
broadband noise of
S2 or so. If your noise level is higher than S3 then you may not even
notice it as it
was noise similar to the noise floor, as wide as the band.
Had other "spots" on other bands that had hash but not too bad.
Have tried many switchers and every one I have had put noise someplace,
if you mention
that on this reflector all you get is a tirade of people with S5 to S6
band noise levels
screaming they hear nothing, they are correct they hear nothing.
Elecraft even admits the switcher they sell has noise.
I have a very very low external noise level at this QTH, so linear
supplies are the only way
I am sure to be free of noise, birdies, and crap internally. YMMV
Merv K9FD
EME on 6m, terrestrial on 2 & 432 with antennas directly above the shack.
Noise floor very low (usually) so anything added very apparent. I haven’t noticed
anything at HF.
The only problems I’ve had at HF were a particular model of Samsung monitor,
and PGE powerlines where HV ran on the old ceramic insulators. K6TU’s
recommendation to file complaints with PUC was effective in getting those
replaced.
These SS-30M supplies have been around a long time. Do others report RFI
problems?
73
Josh W6XU
Sent from my mobile device
On May 18, 2020, at 10:30 AM, Jim Brown <[email protected]> wrote:
Sounds like it's quiet on the bands where you do EME. What bands are those?
Anything on HF?
73, Jim K9YC
On 5/17/2020 9:47 PM, Josh Fiden wrote:
Only when the moon’s at the same heading!
Shack is E of array which is on about 25’ of Rohn 45, so bottom antennas are
quite low.
House is SE and I have to turn off fluorescent lights and washing machine.
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