[Elecraft] Re: RF Coupleing

[Ron D'Eau Claire]

Quite true Jim. 

In this case Eric is saying there may be a leakage path through a relay.
That doesn't affect how RF behaves in coax, but if that relay is leaking RF
it can explain how controlling RF leakage elsewhere, such as by using coax,
might not help. 

In both cases, theory supports reality. 

As you said, one must know enough - not just about electronics theory - but
enough about the situation to understand what to expect. 

Ron AC7AC


-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Jim Brown
Sent: Wednesday, July 16, 2008 5:15 PM
To: Elecraft List
Subject: Re: [Elecraft] Re: RF Coupleing


On Wed, 16 Jul 2008 13:59:26 -0700, Eric Swartz - WA6HHQ, Elecraft wrote:

>Unfortunately theory does not always match reality.

Theory ALWAYS matches reality -- when you know enough about both. :) 

>(i.e. there
>are more variables than the person applying the theory is aware of..) 

Like I said. :) 

>In
>this case we tried coax and it had no impact on improving isolation.  
>The predominant leakage path is inside the ant switching relay. 

Makes sense. 

Jim K9YC 



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