I had similar line conducted RF issue with my brand new Samsung gas
range/stove. 30 watts turned on the gas oven and adjusted the clock
randomly. Installation of a computer type line filter solved my
problem. Samsung was not interested or wanted to address the issue. I
did prevail and finally a Samsung engineer admitted the design problem.
No solution from Samsung. I would buy AC connected Samsung product with
the option to return in case of RF issue. Perhaps Consumer Report
should evaluate products for RF susceptibility the FCC sure not interested.
73, Lou KE1F.
On 1/4/2021 5:21 PM, Jon Poland wrote:
Is the Windom in your attic or outside? My guess is that your antenna is
parallel to the house wiring, and is inducing a current on the ground or
neutral wire. A replacement AFCI breaker might fix the problem. Or a
heavy choke on the AC.
This may or may not be your situation. Most newer houses run all electric
wires from the breaker box up into the attic and back down to wherever they
need to be. At least in single-story homes. That puts the attic antenna
close to the unshielded house wiring.
In my house, it wasn't the AFCI that would go nuts, but the doorbell would
ring when I went over 35 Watts on 20m. I had to install a choke on the
doorbell wire to stop that. Now, every time I transmit, I imagine the
doorbell or smoke detector going off in my neighbor's 2-story next to me.
jon N0WL
On Mon, Jan 4, 2021 at 2:32 PM Tom Doligalski via Elecraft <
[email protected]> wrote:
Should have mentioned that there up is no trouble at 25 watts.
Certainly no trouble at 100 watts back at Field Day.
Sent from my iPad
On Jan 4, 2021, at 12:57 PM, Tom Doligalski <[email protected]> wrote:
Over the last several weeks I’ve been having problems with the arc
fault detector (AFCI) in my fusebox.This does not control the power to the
shack, but to our garage door operners.
It seemed random at first, but I think I’ve tracked it down a bit.
Running an Elecraft K3/KPA500/KAT500 combo. The AFCI ONLY trips when on
80 CW, running 100 watts (the KPA500 in standby bode). If the KPA500 is ON
(running 500 watts) there is no problem.
Seems fine on other bands….
80M antenna is a Carolina Windom. The usual baluns/line
isolator/grounding stuff.
Any ides?
Kinda worried that there is an issue with the 100 W amp in the K3.
73.
Tom W4KX
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