In message , k4kqz
writes

'Jeff[_15_ Wrote:
;795578']-

Which is valid at the microwave oven frequency. Might be relevant at
HF, or more likely, not.

tom
K0TAR-

It is highly unlikely that a material that is OK at 2GHz will be worse
at HF.

Jeff

Actually, a material can be perfectly fine at microwave frequencies and
bad at HF. And vice versa. The microwave oven test should only be
considered a *very rough* indication of material suitability.

Care to suggest one or two examples of materials where RF losses are
higher at HF?
--
Ian