On Sat, 18 Sep 2004 19:24:31 -0700, Tod Glenn
wrote:

In article ,
(K9SQG) wrote:

The best place is at the output of the transmitter or linear amplifier.

Thanks all who answered.

Tod

When I've used a low-pass filter, I've simply attached it to the
output of the transceiver with a double male coax connector, so the
unwanted higher harmonics go directly into the filter, and then the
hopefully clean signal moves on to the antenna feedline.

bob
k5qwg