But once it heats, it will no longer be a half wave. What then?

"Cecil Moore" wrote in message
.. .
CD wrote:
If you have an FM transmitter setup to transmit 150W and you put a
thermometer about 15ft away with the FM antenna directly pointed at it,
will the thermometer reading change?

If the thermometer has a 1/2WL column of mercury,
it certainly will. :-)
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73, Cecil http://www.qsl.net/w5dxp