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Old August 8th 08, 02:13 AM posted to rec.radio.amateur.antenna
John Smith John Smith is offline
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First recorded activity by RadioBanter: Nov 2006
Posts: 2,915
Default Fluorescent light RFI solved

News Features wrote:
...

They cost more, but they're worth every penny.

Regards,

Al W6LX


When the son was in his teens and our radio room was in the basement, we
had fluorescents lighting that basement ...

He built filters for the two, double-40w-tubes, units. If I remember
correctly, he use toroids out of old 8086-8088 IBM power supplies
with--I think, a 100pf, .1 uf and 1 uf caps at the end of the "hot" ac
lead right at the ballasts--to ground, and past the toroid coils. I do
know he made sure the cases of the ballasts were grounded well also ...

It most all the noise from the general shortwave receivers in the room
.... then we noticed the computers were generating a lot of noise ...
and, we never did clear that up to our liking.

Today, my laptop generates no noise if only a couple feet away from any
gear.

I do notice unacceptable noise from wifi switches/routers, and take
great care where I locate them and how I route their wiring.

Regards,
JS