[TowerTalk] In Shack Tuner Vs. Remote Tuner for Multi-Band Antennas

[Jim Lux]

On 5/2/14, 7:09 PM, Patrick Greenlee wrote:
> Close to the antenna feed point is etter.  There are a lot more makers
> of remote automatic tuners than MFJ.
>
>

SGC and LDG both make tuners that would work.

Don't worry about whether the autotuner is "balanced" or not. It doesnt 
make any difference.  You're going to put a big ol' choke on the 
feedline anyway. If the case of the tuner is RF hot, it doesn't make any 
difference.


the real thing is packaging and mounting.


Something to think about is that "open wire line" is high Z, and 
therefore fairly low loss, even with a huge mismatch.  You can put your 
antenna up high, run some sort of pair of wires to the tuner on the 
ground, and it will probably work fairly well.

There's nothing that says that the feedline has to be any particular 
impedance, or that it has to be constant impedance, since the tuner will 
accommodate just about anything that appears at its terminals. (unless 
you wind up with some pathological length..