[time-nuts] Loran-C ICs
Brooke Clarke
brooke at pacific.net
Tue Jan 2 16:56:42 EST 2007
Hi Poul:
I'm trying to make a micro controller based unit, not a PC type. So
there's much less horsepower available. That's why I like the envelope
detector by Burhans. An email from Dave Mills indicated that you had
one of his ISA card receivers but that a 12 bit PCI version would be better.
Have Fun,
Brooke Clarke
w/Java http://www.PRC68.com
w/o Java http://www.pacificsites.com/~brooke/PRC68COM.shtml
http://www.precisionclock.com
Poul-Henning Kamp wrote:
>In message <459ACCD5.201 at pacific.net>, Brooke Clarke writes:
>
>
>>Hi:
>>
>>I found a Loran-C circuit from 1984 done by Ralph Burhans that uses the
>>MC1350 Video-IF amplifier and the MC1357 Sound-IF amp and Quadrature
>>detector, but these are no longer available. Does anyone know of
>>replacement parts? The circuit appears in "Low-Frequency Receiving
>>Techniques, Building and Using VLF Antennas" a Gernsback publication.
>>
>>
>
>Don't bother. You will get much better results by putting an
>A/D converter on the signal and spending a bit of CPU power.
>
>(see http://phk.freebsd.dk/loran-c for inspiration)
>
>
>
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