[Antennas] BCB Loop Antennas
David Kelley
[email protected]
2002年9月27日 14:15:19 -0400
At 04:01 AM 9/27/2002 -0400, you wrote:
>For BCB, a loop receiving antenna can be as simple as a
>tuned circuit (consisting of a coil, which is the loop
>itself, in parallel with a variable capacitor) resonant
>at the received frequency. One side of that circuit is
>connected to ground, and the other side is connected to
>the antenna input. Alternatively, a BCB receiver with
>a builtin loopstick antenna may simply be placed inside
>the loop, without any wires connecting the loop's tuned
>circuit to the receiver--simply orient the receiver for
>maximum received signal, once the variable capacitor has
>been tuned for the intended frequency.
I can confirm that this trick works. I tried it a long time
ago with a table-top AM radio.
73,
Dave NB4J
--
Dave Kelley, NB4J
Lewisburg, PA
Union County