Ivan wrote:
try to make a rectangular coil, about 1 ft x 1 ft, some 30 turns wound
by a fairly thin magnet wire (#25 to #30). Bring it into resonance at
60 kHz by a capacitor, some 8000 - 10000 pF. Place the coil
vertically, aiming to the transmitter, and place the clock to its
center. You do not need any mods of the clock. The signal should be
significantly stronger.

Now, just so I understand you correctly, you're saying I don't
actually connect this loop antenna to the clock? I just place the
clock in the center of it, and the loop antenna (I guess) induces a
stronger signal in the clock's internal antenna? Wow, I'd love that.
As for the loop ends, I just connect them together across the cap?

And when you say "vertically, aiming to the transmitter", you mean
that the plane of the loop intersects with the transmitting station,
right? That is, I don't point the *face* of the loop at the
transmitter, I point the edge towards it. Right?


So, anyway, I'm making an antenna. Alright I downloaded and
played with Reg's program and have a configuration that might work
well.

Can I stack wire turns, and if not, why not? It seems that all the
designs have the wire turns lined up next to each other like:

*****

and never

*****
*****
*****

Is there something about keeping each loop *exactly* the same
circumferential length (not even 0.2% difference) that dramatically
affects loop antenna performance? Or some other affect?

I'd like to fill a 5mm x 5mm cross section with wire turns, which
means stacking them.