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Old January 25th 07, 02:01 AM posted to rec.radio.amateur.antenna
John Smith I John Smith I is offline
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First recorded activity by RadioBanter: Dec 2006
Posts: 1,154
Default Local station bad harmonics on 80 meters

RST Engineering wrote:
Because he's got a SINGLE frequency interfering with his station. To hell
with covering the entire band. A single parallel resonant network will do
something in the order of 80 dB of rejection if the L and C are at LEAST
something reasonable for Q.

Care to calculate the order of filter that will do 80 dB as a low pass
filter? And the Q of the components necessary to make the insertion loss
negligible at 160 meters?


Jim


Krist! Whatever was I thinking?

Yanno, if he even just sits back and thinks about it long enough, he
might be getting excited over his present problem for nothing!

Maybe if he just practiced a little Zen he could learn to actually enjoy it?

Many roads lead to the same destination--the high pass is but one ...

Regards,
JS