Absolutely true Hank... and the more loss in the coax, the "better" (wider) the
bandwidth will look when plotting the VSWR curve.
73 de Bob - KØRC in MN
----- Original Message -----
From: Hank Garretson
To: Robert Chudek - K0RC ; TowerTalk@contesting.com
Sent: Wednesday, February 28, 2007 9:21 AM
Subject: Re: [TowerTalk] Mosley TA-33 problems.........a bit long
At 10:02 PM 27 02 2007, Robert Chudek - K0RC wrote:
>You didn't say where you were measuring your VSWR. The true value
>will be accurate at the antenna feedpoint. Or at an electrical half
>wavelength of coax cut to the band of interest.
Not strictly true. Because of coax line loss, SWR at end of
electrical half wavelength of coax will be lower than SWR at the
antenna feedpoint (unless SWR at antenna feedpoint is 1:1). With
good coax, the effect will be minimal, but it will be there.
73,
Hank, W6SX
Mammoth Lakes, California
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