http://elecraft.85.s1.nabble.com/Baluns-wires-feeders-oh-my-tp394281p394285.html
report back. I will do it just like I did it when I measured MFJ tuner
loss. You can see what I do by clicking on MFJ on my web page at:
> 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 <
[hidden email]>
>> Date: 2006/10/07 Sat AM 07:07:13 CDT
>> To: Dave G4AON <
[hidden email]>
>> CC:
[hidden email]
>> 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
>>
>> _______________________________________________
>> Elecraft mailing list
>> Post to:
[hidden email]
>> You must be a subscriber to post to the list.
>> Subscriber Info (Addr. Change, sub, unsub etc.):
>>
http://mailman.qth.net/mailman/listinfo/elecraft
>>
>> Help:
http://mailman.qth.net/subscribers.htm>> Elecraft web page:
http://www.elecraft.com>>
>>
>
>
> Pete Axson
> WD4LST
> 17901 NE 18th Ave
> Citra, FL 32113
>
>
>
>
Subscriber Info (Addr. Change, sub, unsub etc.):