[time-nuts] FS700 antenna

Poul-Henning Kamp phk at phk.freebsd.dk
Sat May 5 18:23:57 UTC 2012


In message <4FA56EFA.8080702 at verizon.net>, "Stan, W1LE" writes:
>The classical approach:
>
>Look at the spectrum and notch or filter out what is not wanted.

The problem with this is that the switch-mode supply is not
a very good radio-transmitter, so it wanders all over the
place and your notch filter will only catch it every so often.

The only thing that works for this, is to move your antenna
away from the (primarily magnetic) fields of switch mode
power supplies.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.



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