Jimmie D wrote:

"Ian White GM3SEK" wrote

The choke balun made from a small coil of coax would be easier to make. At
my previous QTH, four turns of about 6in diameter made a big reduction in
the levels of noise and birdies on 6m (even though those coil dimensions
weren't optimized in any way).


Using a choke made a big difference in TVI for me.

Others have reported the same.

If you have RFI, either on transmit or on receive, then a feedline choke
("current balun") at the antenna feedpoint would be the first thing to
try. It's easy to install - but even easier if you install it at the
same time as the antenna.

"Prevention is better than cure" is a very good principle.


--
73 from Ian GM3SEK 'In Practice' columnist for RadCom (RSGB)
http://www.ifwtech.co.uk/g3sek