[EMAIL PROTECTED] wrote:
50Hz hum on key down on hi fi
Similar problem on mains MW radio.
Freezing of PC modem on key down.
My suggestions, in order:
1) Try wrapping the speaker leads of your hi fi around ferrite rods or toroids.
If this doesn't clear it up, try wrapping the mains cord from the hi fi around
a ferrite as well. Try to get as many turns as possble. The clamp-on beads are
not effective at HF.
2) Treat the radio in a similar fashion.
3) Use an inline telephone filter (such as the k-com or similar) on your modem
phone line. Also wrap the power wire to the modem around a ferrite.
4) Add a balun of some kind to your dipole.
There's a lot more that you can do, but this basic stuff should help.
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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