[Elecraft] K3 Problem

Don Wilhelm w3fpr at embarqmail.com
Mon Mar 23 18:24:51 EDT 2009


Phil,

The loss in coax (especially a long run) *will* reduce the SWR measured 
at the shack end.  If the loss is great enough and a fault is far enough 
down the coax line, the  measured SWR can be quite low, even 1.0:1.  In 
other words, the SWR at the shack end will always be less than at the 
antenna - just how much lower depends on the loss in the coax.

73,
Don W3FPR

Phil LaMarche wrote:
> Thank you to all the wonderful hams who sent emails to help me this weekend.
> Thinking I had a K3 problem and really didn't.  However, I don't
> understand.....I wasn't able to connect with anyone for 7-28 MHz even though
> the Pal Star watt meter showed 100 watts and little SWR.  In desperation and
> eliminating other possibilities, I put an analyzer on the coax to the beam
> and it measured infinity across it's range.  I obviously have a coax or beam
> problem.  BUT, why did the power meter read as it did?  If that had been
> screwy, I would have immediately checked the antenna.  Antenna guys are
> coming Friday and soon I'll be happily on the air again.
>  
> What a wonder reflector and company to offer help for what ever the problem.
> I'm so glad I have a K3.
>  
> Phil
>  
>
> Philip LaMarche 
> LaMarche Enterprises, Inc.
>  <http://www.instantgourmetspices.com/> www.instantgourmetspices.com
>
> www.w9dvm.com <http://www.w9dvm.com/>  
> 800-395-7795 pin 02 
> 727-944-3226 
> FAX 727-937-8834 
> NASFT 30210 
>
> K3  #1605
>
> CCA  AC98  00827
> W9DVM 
>
>
>  
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