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Bill Janssen wrote:
I would suggest using a shielded loop antenna to help with the local noise problem. The loop is directional so it could be oriented to reduce at least one source of noise. I was planning to use a coil wound on a ferrite bar core to reduce the overall size of the antenna, but the web does show people successfully using large 'air core' loops, as you've suggested. I was thinking of shielding the ferrite bar antenna by placing it in something along the lines of a copper pipe with the edge slitted, but apparently it might be bet to enclose the antenna in a U-shaped piece of metal, such that, oh, say, 1/4 of the broadside of the antenna is still exposed? I'm not sure why this should matter, though? ---Joel |
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