[time-nuts] Firmware and antenna for Stanford Research FS700 Loran C frequency standard

[Poul-Henning Kamp]

--------
In message <36E5F870-B2DD-42BB-A1D5-24D241ACAE88 at n1k.org>, Bob Camp writes:

>> It's interesting that
>> 
>> http://www.vlf.it/feletti2/idealloop.html
>> 
>> says that sensitivity is set by the mass of copper used. To quote
>> 
>> "A single turn square loop, 1m side, made with 1kg copper has the same
>> sensitivity of a 1000 turns square loop made with 1kg copper and  same
>> dimensions. In this context, the sensitivity limit is represented only by
>> loop thermal noise:
>> 
>
>The *power* into the loop is a function of the area.

I think they're barking up another tree:  The number of turns you
can make is inversely proportional to cross-section of the wire,
so given a fixed mass of conductor, you can trade current for voltage
by the number of turns.


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