07-16-13 17:27 Roy Witt wrote to Ed Vance about RF Exposure

 RW> {at}MSGID: 
 RW> Ed Vance wrote to Roy Witt:

 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.

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

 EV> Now I remember what device put the signal at a 20 meter frequency,
 EV> It is my Commodore 64.  IIRC 14.31818 Mc/s is some standard
 EV> frequency for Video (I think).

 RW> Which means while you're on the air near that frequency, the
 RW> computer is offline... 8^)

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

 RW>> Oh yes...

Roy,
I was wrong.
I Think it IS the Commodore 64 that had the 14 Mc/s crystal in it.

 EV> I'm thinking the 14.31818 Mc/s is the Crystal Freq. but I think
 EV> the C=64 clock rate is 1 Mc/s.
 EV> (I've heard some 6502/6510's ran at 2 Mc/s)

 RW> My Pentium runs at 4MHz...

Can it add 2 + 2 correctly?
The Pentium 60 couldn't IIRC.

I never heard of any Pentium slower than 60, was that 4 a typo?

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

When I was in High School I was called a BIG LID a year before
I earned my Novice License by the students who were Hams.

It's a Hard Tradition to uphold, but I try.
I've never denied being a LID as I have other Hams say.

_ _ . . .   . . . _ _

... Thesaurus: ancient reptile with an excellent vocabulary.
--- MultiMail/MS-DOS v0.49
--- SBBSecho 2.12-Linux