[TowerTalk] Coax is too long

[Bob Turner]

The less reflected power seen at SWR meter the better the SWR looks.    One way to reduce reflected power it to loss / loose it on the way back.

Bob

-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of Chuck Dietz
Sent: Wednesday, October 9, 2019 3:56 PM
To: Bryan Fields <Bryan at bryanfields.net>
Cc: towertalk at contesting.com
Subject: Re: [TowerTalk] Coax is too long

I’m not understanding what loss has to do with SWR.

Chuck W5PR

On Wed, Oct 9, 2019 at 11:34 AM Bryan Fields <Bryan at bryanfields.net> wrote:

> On 10/9/19 2:19 PM, Dave Thompson wrote:
> > Besides cutting it shorter and installing a new connector  can I 
> > coil up the bottom and if so do it at the bottom of the tower or 
> > where it goes
> into
> > the house.  The SWR is OK but I need to get it off the ground.
>
> Cut it and reterminate it.
>
> SWR doesn't always matter when the coax is long, 200' of LMR400 on 440 
> is about 6 db of loss, and that makes for 12 db of return loss, or 
> ~1.6:1 VSWR.
> You could leave the coax shorted at the end and it would still show a 
> 1.6:1 VSWR on your meter in the shack.
>
> --
> Bryan Fields
>
> 727-409-1194 - Voice
> http://bryanfields.net
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