[Amps] Trimming the transmission line

[Gary Smith]

Is this the (possible) reason that Collins radio stated when using the 
30-s-one to use exactly twenty feet of coax between the xcvr/xmtr and the 
linear?

This info is one of the first cautions stated in the 30-s one install 
instructions.

Just trying to keep on learning and understanding as I grow old and time 
goes by.

73's,
Gary...wa6fgi


----- Original Message ----- 
From: "Barry Kirkwood" <barry.kirkwood at gmail.com>
To: <amps at contesting.com>
Sent: Thursday, October 11, 2007 4:30 PM
Subject: [Amps] Trimming the transmission line


> Have I got it wrong?
> As I see it:
> True: Changing the length of a transmission line will not change the SWR.
> True: It the SWR is other than !:1, trimming the line may bring one to a
> point where there is a voltage or current node, and the load will be
> resistive with no reactive component.
> 73
> Barry ZL1DD
>
> -- 
> Barry Kirkwood PhD ZL1DD
> barry.kirkwood at gmail.com
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