"Tobin Fricke" wrote in message
F.Berkeley.EDU
As a project to learn more about building radio receivers, I'd like to
build a WWV receiver (or maybe a receiver for the Canadian station
CHU, since it's nearby and the format sounds easier to decode). I'm
looking for suggestions for how to design such a radio, reading
material, etc.

I was thinking it might be easier to design a fixed-frequency receiver
(rather than a tunable one) because I could just select the L and C
in the resonant circuit to give the right frequency. Or, since WWV
is at such "round number" frequencies, maybe I could somehow use a
crystal oscillator?

thank you,
Tobin

You might try and find a user manual for the old Heathkit GC-1000 Most
Accurate Clock.
It synchonizes the clock and local oscillator to the WWV transmissions
at 5, 10 or 15 MHz. The kit came with a preassembled and prealigned RF
board but you still had to assemble the data recovery and other parts of
the unit. The manual includes full schematics (including RF board) and
a good theory of operation section. The only thing missing are
instructions on aligning the RF board. The silly thing works pretty but
I had to build an antenna and install it in by attic to get it to
sychronize reliably.

--
James T. White