[Elecraft] Baluns & wires & feeders (oh, my!)

[wd4lst at windstream.net]

Great Idea - thanks for pointing me to the obvious <GR>. 
Just as I was contriving a highly complex solution to a non existent problem!!
Besides, one could always use another balun.
73s
Pete
> 
> From: Karl Larsen <k5di at zianet.com>
> Date: 2006/10/07 Sat AM 07:07:13 CDT
> To: Dave G4AON <elecraft at astromag.co.uk>
> CC: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] Baluns & wires & feeders (oh, my!)
> 
> Dave G4AON wrote:
> > There is a simple way to measure the efficiency of a balun, make two of
> > them and connect them "back to back". Measure the power fed to them and
> > the corresponding output power. Obviously this doesn't take a mismatched
> > antenna into account.
> >   
>     I did just that about this 5 years ago. I used two MFJ tuners 
> connected by the 4:1 baluns in each. I fed one from my MFJ Antenna 
> Analyser and hooked a 50 ohm resister to the other tuner. I measured the 
> voltage across the resistor with a RF probe.
> 
>     Alas I can't locate the paper where I wrote down the results. Over 
> the bands the loss was around 10-15% I recall and I thought that was 
> about what I expected.
> 
> 
> 73 Karl K5DI
> 
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Pete Axson
WD4LST
17901 NE 18th Ave
Citra, FL 32113