[Lowfer] Testing material for losses

[KD7JYK DM09]

Well...  Yeah!

Testing a material in a typical microwave oven tells you the losses at the
resonant frequency of water, 2.54 GCs (GHz, KMCs et cetera).  Unless you
plan to operate there, which could prove fatal, or at the very least,
extremely painful, the test is useless.

Other industrial heating devices operate at 13.560, 27.120 and somewhere in
the 900 MHz ISDM band, the exact frequency escapes me at the moment.

Kurt

----- Original Message -----
From: <ToddRoberts2001 at aol.com>

: I've read a number of posts lately where the losses of various  possible
: coil or antenna forms has been mentioned.  We're all aware of  using
: the domestic microwave oven to test material for RF suitability,  but
: wouldn't a better test be at the frequency of the intended  use?