[Elecraft] Balun suggestions

Wes (N7WS) wes at triconet.org
Thu Feb 4 20:35:26 EST 2016


I was wrong.  Clearly, I'm dreaming.

On 2/4/2016 5:38 PM, Don Wilhelm wrote:
> Wes,
>
> I don't mean to be contentious, but under ideal conditions, what Ron said is 
> true.  Even though we often refer to the output of the KAT500 (or any other 
> device that normally connects to a coaxial line, the currents on the output 
> should be equal and opposite - which is the definition of balanced.
> Consider the currents between the center conductor and the inside of the 
> shield for coax.  They must be equal and opposite.  It is the common mode 
> current on the outside of the feedline that produces any unbalance.
>
> So connecting a balanced feedline to a PL-259 is not so far fetched - 
> providing the shell of the PL-259 (and enclosure of the KAT500) is not 
> grounded.  If you have decided to ground your KAT500, then you would need to 
> use a balun - so "it all depends". Be aware of "sneak grounds".
>
> 73,
> Don W3FPR
>
> On 2/4/2016 7:17 PM, Wes (N7WS) wrote:
>> I just pinched myself; I'm not dreaming and it's not April 1st, so I guess 
>> you're serious.
>>
>> You are also so wrong on so many points, I'm not going to waste time trying 
>> to refute or correct them.
>>
>> Jim, please ignore everything said below.
>>
>> Wes  N7WS
>>



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