Re: 10 MHz/UTC Receiver

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From: phreique@juno.com
Date: Sat Sep 06 1997 - 02:30:50 EDT


Frank,
     I've been thinking about doing the same just for the fun of it. I
can't imagine that it's more than designing a preselector built to
receive only 10MHz. The rest is just a detector, preamps and amplifiers.
 I think the equation for figuring out the values for the preselector are
 f = SQRT(LC) or L = 1 / f^2 C or C = 1 / f^2 L where L is in
Henrys, C is in Farads, and f is in Hertz. Am I too far off guys?
It's been a long time since I've done electronics math. :-)

-Sterling W. Lombard (The Phreique) KB7JTZ
 http://www.primenet.com/~slombard

On Fri, 5 Sep 1997 12:12:12 -0500 fmathews@norfolk.infi.net (Frank
Matthews) writes:
>Fellow QRPer's
>
> I'd like to come up with a circuit that will receive the UTC
>Broadcast (10 MHz) only. Sort of like the W1AW receiver recently
>published
>in QST.
>
> Can anyone offer some help or suggestions or does this circuit
>already exist and I just haven't found it?
>
>Thanks, Frank
>
>
>Frank Matthews
>Technology Education Department
>Oscar F. Smith High School
>1994 Tiger Drive
>Chesapeake, VA 23320
>(757) 548-0696 Ext. 51
>Email/fmathews@norfolk.infi.net
>
>
>
>


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