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Re: Halloween Coiling and the FCC
Original poster: "davep by way of Terry Fritz <twftesla-at-qwest-dot-net>" <davep-at-quik-dot-com>
>>My impression is that HAMs used to work Spacelab with
>>1W ish Walkie talkies?
> No problem there, at VHF/UHF. My comment referred to TC
> operating frequencies.
Welllll. I suggest that TC's operate (as the saying
is) DC to Daylight. (Considering UV from the gap:
may not be that far off...)
I STILL have not seen (have i missed it?)
which Rx freq was used in the 'my friend the ham
heard me 20 miles away' test. I'd be interested
While the nominal freq may be 100KHz there is
substantial power elsewhere, unless, as noted,
specifically suppressed.
Hint:
Nominal TV input sensitivity is in the microvolts
range. (varying from set to set.... thats a good
starting point.) Converting from that to power
gets complex, but can be done.
Years ago, a friend swore he could pick up a weld
shop 10 miles away on TV. Dunno fer sure...
best
dwp
...the net of a million lies...
Vernor Vinge
There are Many Web Sites which Say Many Things.
-me