[Elecraft] Remote Antenna Tuner

[Darrell Bellerive]

Jack,

I believe these are the tuners you mention:

http://www.hamware.de/hardware/tuner402/at402-e.htm
http://www.hamware.de/hardware/tuner415/at415-e.htm

Darrell   VE7CLA   K2 #1973

On Sun, 2003-09-07 at 14:38, Jack Brindle wrote:
> On Sunday, September 7, 2003, at 11:52  AM, Sverre Holm wrote:
> 
> > I wonder, is there anything fundamentally difficult in making an
> > automatic balanced tuner, say an automatic version of the BLT-tuner or
> > another Z-match tuner? - or is the problem that there aren't enough
> > people interested so that noone has bothered to try?
> 
> This is exactly like the previous discussion of "why hasn't someone  
> done that?" The answer is that it simply is an exercise waiting for the  
> right person knowing the right technology  to get the right brainstorm.
> 
> Having said that, there is one balanced tuner on the market at present,  
> marketed by a German company. Sorry, I don't have the URL at my  
> fingertips, but could look it up if pressed. The unit uses a mirrored  
> version of the standard auto antenna tuner that just about everyone  
> else uses. I suspect then it has the same limitations as these units.
> 
> There actually is some magic to creating a truly balanced automated  
> tuner of the kind in discussion. Manual versions of this were much in  
> vogue up until the late 70s, and still in use in my shack). I believe  
> the magic is not that difficult, and actually results from a  
> simplification of the overall design. The big problem is much more  
> difficult to solve - having the time to actually build a unit!
> 
> - Jack Brindle, WA4FIB
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