I agree with Jim, but fortunately none is none.
Expertise? I'd lay a lot more to luck as I'm located near a corner in a
mid-scale rural subdivision with 10 homes within roughly 300 yards. At
least the lots are large. It's woods on the W (back yard) and N of me.
To the S of me on the E/W road there's about 5 houses E and W and 3
across the road N of me.
OTOH it's a relatively old subdivision so I expect a few sources to pop
up. Power failures? We get too many of those. I've put well over a 100
hours on my generator in the last ten years. I run everything in here
except the amp off a 3 KVA true sin wave line conditioner. Killing the
main breakers with everything disconnected from the line conditioner
doesn't change the noise.
Generally at 3, or 4 AM, the S meter sets right down on the peg on 40
meters. I just turned the rig on and was a surprise to see it setting
on the pin. An intermittent hash came on which appeared to be from
someone tuning up quite a way down the band, but that went away. It
sounded like operating on six meters for a while. There's usually a lot
more noise in the day time.
Just had a nice QSO with WA1Y on 7.163 @ abt 10 over. First daytime
QSO in years.
After the QSO another station called but his signal just wasn't making it.
The band noise is now about S3, occasionally dropping to about 1.5
On 3/19/2018 Monday 5:02 AM, Jim Brown wrote:
On 3/19/2018 1:35 AM, Roger (K8RI) via RFI wrote:
"So far" with 5 computers, and 2 smart TVs on a CAT5 Gigabyte network
along with numerous laptops, tablets, and smartphones, on wifi I've
had no interference from "MY" stuff.
While respecting your expertise, with dozens of sources polluting our
environment, it's easy for those multiple sources to obscure each
individual source, and lead us to believe that none of them is
contributing. AND we hear our neighbors' sources.
I strongly urge everyone to replace ALL switch-mode supplies with
linear supplies and repeat any tests to prove that your "stuff" is not
part of the problem. I run lots of "stuff" on small sealed lead-acid
batteries that are float-charged from linear supplies -- everything
from cable modems, and routers to video monitors and stuff in the home
entertainment system -- and that helps. Yes, I stil hear trash from my
neighbors, but that's several dB down. Every little bit helps us hear
the weak DX. Yesterday, I worked an AF DXpedition on 160M, 7,500 miles
away.
73, Jim K9YC
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Roger (K8RI)
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