Ed Vance wrote to All:

 EV> When I read about the FCC wanting comments on RF Exposure, I thought
 EV> about it a bit and the thought came to me that RF Oscillators are in
 EV> lots and lots of electronic things.

RF exposure that they're talking about doesn't even compare to placing a
100 watt incandescent light bulb in your mouth and tuning the finals in a
RF linear amplifier by brightest light... 8^)

 EV> Sure they are low power but they can radiate "measurable" RF.
 EV> 

yeah...

 EV> When I was a child I use to sit near the large radio listening to
 EV> shows every night.

Been there, done that. My sister, being of the younger generation, sat
on the floor in front of the ole B&W TV and watched her programs, 'up
close and personal'.

 EV> Some times I would be by myself and turn the dial from station to
 EV> station just to watch the Green Eye Tube blink.

Wow! I haven't seen one of those in a coon's age.

 EV> That's a lot of RF Exposure! and I was just a little kid.

8^)

 EV> I forget now what it was that I learned had a crystal oscillator
 EV> frequency in the 20 meter band, but after I learned about it I tuned
 EV> my RCVR to that frequency and heard some noise.

I still get that noise, as this PC generates the same oscillator noise in
my present gear. My Police Scanner does too, but fortunately, it has a
'lock out' button to eliminate that frequency.

 EV> Also I rmemeber when I had a all mode 2 meter rig I heard
 EV> interference in the lower part of the band from the cable TV wire
 EV> that runs along side my QTH.

Tune it just right and you may have heard the audio from certain channels,
as the frequency used shares the 2mtr band, just below 144MHz.

 EV> I don't have a cable service, but I could hear their RF Leak.

Yeup. I did too.

 EV> Oh Yes, Computers have crystal oscillators too! IIRC the Commodore 64
 EV> oscillators frequency is 1 Mc/s.

Oh yes...

 EV> Yes I AM A BIG LID.   . . . .    . .       _ . _

I think that RF oscillator energy has cooked some of the fat away here...


         R\%/itt


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