At 06:45 PM 2/4/00 -0500, you wrote:
>
>The sensors that Fat Quarters sells are MOST CERTAINLY fluxgates!
>
>Doug
>
>
Doug,
I admit I am guessing, but have you read the description of the Precision
Navagation sensors? They put out a variable frequency square wave just like
the Speake sensors. The fluxgate sensors I know about all require
demodulating a fixed frequency flux chopping signal and that results in a
DC voltage representive of the magnetic flux. This would have to be
converted to the variable frequency signal with additional circuitry.

Jim Hannon
http://soli.inav.net/~jmhannon/
42,11.90N,91,39.26W
WB0TXL


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