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Re: Topband: 1000 feet 5/8" hardline or 600ohm True Ladder line.

To: Milt -- N5IA <n5ia@zia-connection.com>, k1fz <k1fz@myfairpoint.net>, Carl <km1h@jeremy.mv.com>, Mike Waters <mikewate@gmail.com>, topband <topband@contesting.com>
Subject: Re: Topband: 1000 feet 5/8" hardline or 600ohm True Ladder line.
From: "Richard (Rick) Karlquist" <richard@karlquist.com>
Date: Tue, 29 Apr 2014 10:08:19 -0700
List-post: <topband@contesting.com">mailto:topband@contesting.com>


On 4/29/2014 8:49 AM, Milt -- N5IA wrote:
=
The 420 foot long run of paralleled cables dampens the slight mismatch

The calculated loss is a mere 0.2%.  The proof is in the pudding.  It

73 de Milt, N5IA


0.2% is only 0.01 dB, that can't be right.  Maybe
you meant 0.2 dB.

The ARRL Antenna Handbook shows about 0.4 dB for 420
feet of 75 ohm 1/2 inch hardline.  Paralleling two
runs of line does not decrease the insertion loss.

Rick N6RK
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