wrote:

1) The DX-160 has an Antenna trim knob, so is a preselctor redundant?
2) The 9:1 matching impedance transformer is intriguing, but can they
be found/purchased already built?


Some food for thought...

http://web.telia.com/~u85920178/


Which has this in it. It's hard to find, but it's there.

http://web.telia.com/~u85920178/antennas/balun0.htm

mike

MII - Thank You Very Much for this Link / URL ~ RHF
..
..
WHAT -?- "RF BALUNs" - by Harry Lythall [SM0VPO]
..
BALUN = http://web.telia.com/~u85920178/antennas/balun0.htm
..
WHY -?- Should "I" Read this WebPage / Check-Out this Link URL ?
..
READ = http://web.telia.com/~u85920178/antennas/balun0.htm
..
Elemination of Radiation from the Feeder Cable
..
Makes the Antenna Radiation Pattern Predictable.
..
Dramatically Reduces QRM, TVI to neighbours.
..
Helps to Keep RF Out of the Shack.
..
CHECK-OUT = http://web.telia.com/~u85920178/antennas/balun0.htm
..
..

RHF wrote:

MII - Thank You Very Much for this Link


.....blush...






mike