In article ,
Michael A. Terrell wrote:

micky wrote:

On Fri, 09 Nov 2012 22:18:39 -0500, "Michael A. Terrell"
wrote:

....
I don't think so. And if that were the case, then a
radio transmitter broadcasting at 600 KHz would require an antenna
that was a third of a mile long.


No, it doesn't. AM BC band broadcast antennas are not a full
wavelength, and the aren't resonant at the transmit frequency.


Please say more about that. Thanks!


They all
use use L/C networks to make the tower work at the allocated frequency.

What, some kind of impedance matching?


Some ATU are as large as the AM transmitter when the tower is difficult
to configure.

ATU -- what's that?


Thanks!

David


PS: And if you feel like writing a bunch, give us all a tutorial!