"Chuck" wrote in message ...
This addresses a question I thought I saw on this group not long ago. I
apologize for not being able to post this in a timely way. I also
apologize
if this information has already been posted.

The question was whether it was necessary to provide an RF ground for the
transmitter in addition to the RF ground provided at the ATU. I believe
the
answer is generally no.

The best place for grounding is at the ATU. Grounding the TX is not
necessary then. If you only ground the TX, high RF currents will flow on the
outside of the coax from ATU to ground and as a result the coax will radiate
too.

Meindert
PE1GRV