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RE: Alternatives to fiberglass boom



Wayne -- a quick way to test any material is to put a small piece in your
Microwave Oven (running at full power). Heat it for 10-15 seconds. If no
spark/flames are noted and the piece is not incredibly hot, then run the
microwave for 60 seconds. If the piece is still at room temperature, it has
excellent microwave properties. If it is starting to get warm, it's probably
OK, If you can't pick it up, or if flames have been noted, forget it !!!

If it made it OK to 1 minute, then you might want to give it a try at 2-3
minutes just to make sure that the initial "good" diagnosis holds.

73 de Tom, W3IWI


> Luc Leblanc VE2DWE wrote:
>
> PVC is NOT A GOOD INSULATOR AT MICROWAVE FREQUENCIES but
> losses are acceptable at UHF frequencies.
>
> Wayne replies:
>
> Is a wooden closet rod (dry, sealed with Polyurethane) BETTER
> or WORSE than PVC at UHF frequencies?
>
> Wayne Estes     > > >  W 9 A E  < < <


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