At 04:43 AM 11/19/2005, Peter Chadwick wrote:
>A problem with a 1kHz supply would be stopping it getting into audio
>systems in radio, TV etc, as well as phones. Then there's the
>problem of 'singing' motors and transformers and even flourescent
>lights. So it either has to be low in frequency or high enough that
>it's beyong audibility. Then we have other problems..
>
>73
>
>Peter G3RZP
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
If you mean the mechanical vibration at 1kHz, I agree it might be
difficult to eliminate, but still worth experimenting with. If you
mean the electrical noise, it should be easy to filter I'd think. As
I said, some research would be needed to find the optimum frequency.
73, Bill W6WRT
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