[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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