In article ,
David wrote:
These are ion the same ISM frequency as microwave ovens (2450 mHz as I
recall). Satellite radio is the closest licensed service that may be
affected. A part 15/ISM device may not cause interference to a
licensed service.

Part 18 covers a whole series of bands, mostly HF and Microwave, and
a pretty much blanket use of LF. (For LF, the important part is how
much crud you put back into the powerline). For HF, the bands are
6.78 MHz +/- 15 kHz,
13.56 MHz +/- 7 kHz,
27.12 MHz +/- 163 Khz. (Yup, Citizens Band)

It's got my favorite line that I've found so far in the regs.

18.306a "ISM equipment operating on a frequency specified in (paragraph)
18.301 is permitted unlimited radiated energy in the band specified for
that frequency". (You're not allowed to modulate any information on it,
though).

Mark Zenier Washington State resident

David: These are ion the same ISM frequency as microwave ovens (2450 mHz as
I recall).

The ovens I'm aware of operate around 10GHz.

A magnetron for 2.45 GHz would be the size of a roast.G

Bill, K5BY

http://www.wi-fiplanet.com/tutorials...le.php/3116531

http://www.awimicrowaves.com/detail.asp?id=630

On 19 Jun 2004 04:47:40 GMT, (WShoots1) wrote:

David: These are ion the same ISM frequency as microwave ovens (2450 mHz as
I recall).

The ovens I'm aware of operate around 10GHz.

A magnetron for 2.45 GHz would be the size of a roast.G

Bill, K5BY

In article ,
WShoots1 wrote:
David: These are ion the same ISM frequency as microwave ovens (2450 mHz as
I recall).

The ovens I'm aware of operate around 10GHz.

A magnetron for 2.45 GHz would be the size of a roast.G

Look at the name plate, it'll have the frequency along with the serial
number, power consumption, and whatever other part 18 label the FCC
requires.

The $99 Sharp's (that I regularly take apart to repair the damn carousel
axles), clearly state 2450 MHz and the magnetron, with all its magnets and
flanges, is only about the size of a coffee cup.

They're using the "new" rare earth magnets, which are loads of fun to
play with. The main reason to scrap out ovens (and hard disk drives,
too). Watch out for ceramics containing Beryllium that's in a lot of
high power RF parts, though. And don't get your fingers in between two
of them where you can't keep them apart.

Mark Zenier Washington State resident

Mark: The $99 Sharp's (that I regularly take apart to repair the damn
carousel axles), clearly state 2450 MHz and the magnetron, with all its magnets
and flanges, is only about the size of a coffee cup. They're using the "new"
rare earth magnets, which are loads of fun to play with.

Ah so... I forgot about those new magnets. I've been retired from the
electronics and computers service business for 13 years, and it's all I kind do
to keep up with home computers. G

Thanks much, Mark, and you other folks, too, who have treated this dinosaur
kindly. G

73,
Bill, K5BY