That is why they use litz wire, sometimes three inches in diameter for the
coils and for the capacity hat.
The ground system includes miles of buried copper. Capacitors are larger
than trash cans and gas filled.
----- Original Message -----
From: "Bob Camp" <[email protected]>
To: "Discussion of precise time and frequency measurement"
<[email protected]>
Sent: Sunday, July 28, 2013 5:23 PM
Subject: Re: [time-nuts] GPS Spoofing
Hi
Small antennas (all antennas at 100 KHz are small) are not a matter of
wavelengths of wire in the air. They are a matter of making do with what you
have. Efficiency is more a matter of coil loss (or equivalent) than of
antenna size.
Bob
On Jul 28, 2013, at 5:12 PM, Bob Stewart <[email protected]> wrote:
So, given the size of a typical freighter these days, what's so hard about
imagining one with enough wire in the air to make that happen for whatever
political or commercial reason?
Bob
________________________________
From: Bob Camp <[email protected]>
To: Discussion of precise time and frequency measurement
<[email protected]>
Sent: Sunday, July 28, 2013 4:05 PM
Subject: Re: [time-nuts] GPS Spoofing
Hi
So in this case we're talking about "horrible" to "even more horrible" in
terms of efficiency. I'll freely grant that a 600' tower over a really
good ground plane (like say the sea) is going to be way more efficient
than anything I'd come up with. The same thing would apply to a matching
network made of coils you can stand up inside compared to anything I'd
make.
Totally off topic - In the lobby of Continental Electronics they used to
have this typical transmitter sitting there. You sort of wondered "why".
After looking at it you figured out the little ant down in the bottom was
a person. Yes, the coils and "stuff" in Omega transmitters were *big*.
Bob
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