[TenTec] FW: [Fwd: Feedline loss calculator]

[Robert & Linda McGraw K4TAX]

This is one of the reasons that I do not like the idea of running coax from 
the tuner to the outside where it is then connected to a balun for the 
purpose of using a balanced feed system.  Oh I realize that the coax run is 
short but at high SWR values coax gets very lossey.  From my point of view I 
rather deal with the balanced line, and it's not near as critical as most 
think, all the way from the antenna feed point to the tuner/balun output. 
I believe in extrapolating every tenth of a dB in performance out of a 
system.

73
Bob, K4TAX


----- Original Message ----- 
From: "Rob Atkinson K5UJ" <k5uj at hotmail.com>
To: <tentec at contesting.com>
Sent: Thursday, October 06, 2005 4:18 PM
Subject: [TenTec] FW: [Fwd: Feedline loss calculator]


> this was posted to tower talk reflector--it is a pretty cool calculator 
> that
> lets you compare losses of different feedlines keeping other conditions
> constant.  compare for example the loss of 600 ohm open wire feed with 
> that
> of RG213 on 7 mhz, for 100 feet and swr of 10:1
> It may open your eyes about losses in your lines, especially on low
> frequencies, that you may have assumed were negligible, even at low swr.
>
> http://www.ocarc.ca/coax.htm
>
> rob/k5uj
>
> _________________________________________________________________
> Express yourself instantly with MSN Messenger! Download today - it's FREE!
> http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/
>
> _______________________________________________
> TenTec mailing list
> TenTec at contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>