Was just wondering if coax feed with balun at centerpoint would be better
than ladderline feed with balun at tuner output (and no, my tuner doesn't
have an internal balun).

Tuner-balun-ladder-antenna is better. Lower losses if
the tuner is doing anything, i.e. antenna is not 50+j0 ohms.

Since you are considering using ladder-line, you must be thinking a little
about efficiency; wouldn't ChokeBalun-BalancedTuner-ladder-antenna be at
least as good and maybe even better?

--
--Myron A. Calhoun.
Five boxes preserve our freedoms: soap, ballot, witness, jury, and cartridge
PhD EE (retired). "Barbershop" tenor. CDL(PTXS). W0PBV. (785) 539-4448
NRA Life Member and Certified Instructor (Home Firearm Safety, Rifle, Pistol)

wrote:

Was just wondering if coax feed with balun at centerpoint would be better
than ladderline feed with balun at tuner output (and no, my tuner doesn't
have an internal balun).


Tuner-balun-ladder-antenna is better. Lower losses if
the tuner is doing anything, i.e. antenna is not 50+j0 ohms.


Since you are considering using ladder-line, you must be thinking a little
about efficiency; wouldn't ChokeBalun-BalancedTuner-ladder-antenna be at
least as good and maybe even better?

Yes, but that really needs either an expensive floated or balanced tuner
or a remotely controlled one. I use an SGC230 in exactly the line up you
suggested.

Most manual unbalanced ATUs will have an RF hot chassis in that configuration
and hand proximity effects will make them very tricky to tune.

vy 73

Andy, M1EBV

Tuner-balun-ladder-antenna is better....
... wouldn't ChokeBalun-BalancedTuner-ladder-antenna be ... better?
Yes, but that really needs either an expensive floated or balanced tuner
or a remotely controlled one....

Not counting the choke balun (coax coiled on an oatmeal box), my
"expensive" balanced tuner consists of a variable capacitor, two
inductors, and two alligator clips. When my antenna configurations
settle down (probably not soon), I may replace the alligator clips
with a two-dec rotary switch. (Of course, if I had two identical
rotary inductors, I wouldn't need the alligator clips!)
--
--Myron A. Calhoun.
Five boxes preserve our freedoms: soap, ballot, witness, jury, and cartridge
PhD EE (retired). "Barbershop" tenor. CDL(PTXS). W0PBV. (785) 539-4448
NRA Life Member and Certified Instructor (Home Firearm Safety, Rifle, Pistol)