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Re: [TowerTalk] ...and another coax adapter question

To: Scott Townley <scott@nx7u.net>
Subject: Re: [TowerTalk] ...and another coax adapter question
From: Jack Brindle via TowerTalk <towertalk@contesting.com>
Reply-to: Jack Brindle <jackbrindle@me.com>
Date: Fri, 24 Nov 2023 16:29:39 -0600
List-post: <mailto:towertalk@contesting.com>
One of the big problems with off-brand connectors and adapters is their power 
handling capabilities. This is especially noted in the right-angle adapter. We 
see a lot of arcing when higher power is applied. 
Higher power in this case is anything above just a few hundred watts. Whenever 
I see an amplifier log report with a lot of high reflected power or PA 
Dissipation faults, I immediately start looking at the 
connectors and feed line for problems. These are usually found in one of 
several places - right angle adapters, and baluns that were meant for low 
power, but have been over-stressed with high
power.

My advice? If the right-angle adapters aren’t Amphenol, throw them out.

73,
Jack, W6FB


> On Nov 24, 2023, at 12:59 PM, Scott Townley <scott@nx7u.net> wrote:
> 
> Say I have a pile of coax adapters on my bench (we all do, right?).
> 
> How do I separate the wheat from the chaff?  I have a fully equipped 
> bench...I would think the go-to would be a TDR measurement.  Any 
> better/additional suggestions?
> 
> TIA,
> 
> -- 
> Scott NX7U
> 
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