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Re: [TowerTalk] Phasing Line Excess Routing

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Phasing Line Excess Routing
From: Grant Saviers <grants2@pacbell.net>
Date: Mon, 27 Feb 2023 06:55:28 -0800
List-post: <mailto:towertalk@contesting.com>
Steve,

My tower runs for 3 2x stacks are straight to base entry panel grounded at a small shed (4x6x8') I built next to the tower base. I used the commercial tower rubber bushings as entry panel pass thru's. Then the phasing lines are connected (DINs) and coiled and stored in the shed rafters. Three coils of LDF5 since these are 10/15/20 stacks. We did TDR the full lengths to match them. I didn't want the connectors out in he weather and the coils on the tower. All 6 LDF5 are connected to the StackMatches with equal length DIN to PL jumpers of LMR400.

For the Heliax bonding, I used the Heliax grounding kits outside to the shed entry panel. Then the StackMatches also bond inside the shed to the tower ground system. So far (6yrs), no issues and the stacks work.

If you would like some pictures, contact me off list.

Grant KZ1W

On 2/27/2023 05:14, Steve Walter wrote:
Using a StackMatch and equal coax lengths is there any advice for the
excess coax in a two-stack.  80' and 50'.  I would prefer to coil the
excess 30' AFTER the shield ground at the base. This would mean one 80' run
would be continuous to the base ground block and the other would be
grounded at the 50' length and the excess coiled.  Does this significantly
affect phasing?  Or should I just coil it and then go to the ground block
so they would be identical?
Is coiling further up the tower acceptable?    Im also wondering how the
coil location affects lightning protection of the coax.

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