[Elecraft] Aliens showing "Displeasure?"
Rich
RichLentz at cox.net
Tue Dec 1 20:15:51 EST 2009
Some of the newer electric blankets have a CHEAP switching P/S similar to
those on laptop power supplies. Check them out too - good possibility as
nights are colder. Some stay on whenever plugged in others cycle on and off.
Some also have an IR controlled temperature control (at least mine does)
that would cause the load to vary and thus the frequency. I need to unplug
mine when using the radio. I threw one away that had NO filtering of any
type (not even a rf choke or ferrite core) inside the white plastic box
containing the switching P/S.
Rich
JIM DAVIS-11 wrote:
>
> Gentlemen,
>
> I'm experiencing an ODD rather broad noise USUALLY on 20m @ the lower end
> of the band (CW) between
> 14.020 up to about 14.060mhz.
--
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