Towertalk
[Top] [All Lists]

Re: [TowerTalk] Comet GP-6NC question

To: "towertalk@contesting.com" <towertalk@contesting.com>, Jim Brown <jim@audiosystemsgroup.com>
Subject: Re: [TowerTalk] Comet GP-6NC question
From: Tom WA9WSJ via TowerTalk <towertalk@contesting.com>
Reply-to: Tom WA9WSJ <wa9wsj@yahoo.com>
Date: Sun, 6 Dec 2020 18:52:11 +0000 (UTC)
List-post: <mailto:towertalk@contesting.com>
 Hi Jim,
Thanks for your replies.
I agree with your thoughts. I have a comet gp-9 and I have had to replace the 
in-line capacitors a couple of times due to close lightning strikes.This gp-6nc 
is probably built in similar fashion. Making the internal element longer will 
probably be a pain, in addition to making the fiberglass covering tube longer 
even if I get it to tune lower. As you suggest, I'll put an analyzer on it to 
see how wide banded it might be. Maybe I'll get lucky and will work on the ham 
bands. I was hoping someone went through this before I tried it, so as to get 
some pointers. Thanks again for your thoughts.
73,
Tom



    On Saturday, December 5, 2020, 04:42:10 PM MST, Jim Brown 
<jim@audiosystemsgroup.com> wrote:  
 
 On 12/5/2020 3:36 PM, Jim Brown wrote:
> Here's the poop sheet.
> https://cometantenna.com/wp-content/uploads/2013/09/gp-9nc.pdf

Wrong part number, it's for a longer, higher gain antenna, and the 
website yields an error for the right part number.

The tuning on antennas like this is strongly dependent on element 
length, and there are likely internal components connecting the two 
elements. My guess is that it won't be easy to modify.

73, Jim K9YC
_______________________________________________



_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
  
_______________________________________________



_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk

<Prev in Thread] Current Thread [Next in Thread>