[Elecraft] Interference on 17M
Michael Carter
Mike.Carter at unh.edu
Tue Apr 19 16:17:10 EDT 2022
William, I suspect you had an attachment
stripped by the reflector. Was it a sound
file or spectrum view?
Ron, does the RFI occur only on 17M?
I presume you've checked other bands?
The switch-mode power conversion
in PV inverters can generate RFI
across a broad spectrum, but it would
be unusual to have an isolated spectral
peak, even line-broadened, at one
discrete frequency in the 18 MHz
range. The switching frequencies
in power converters are typically
much lower. The harmonics of the
switching frequency could appear
in the 17M band, but those would
be weak relative to the fundamental
in the few hundred kHz to perhaps
2 MHz range.
Ron, do you have HF portable RX
capability, even if only temporarily
in your car? Some phone calls or
emails to other hams in your
community would help with local
RFI checks.
Keep us posted!
73,
Mike, K8CN
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