At 09:56 AM 9/23/99 -0500, you wrote:
>
>Hi all,
>
>I found out why the company I sell for silver plates their cavity filters.
>
>The filters are hogged out of a block of aluminum. Aluminum stinks as an
>RF conductor as the losses are too high.
Better scrap all those aluminum HF and VHF antennas then ...
Therefore, they plate the
>aluminum with silver in order to improve the conductivity and Q of the
>parts. In some cases, if a customer wants to save money and doesn't need
>the super low loss performance, we will sell unplated filters.
>
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