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Re: [TowerTalk] Cob Web Antenna

To: "towertalk@contesting.com" <towertalk@contesting.com>
Subject: Re: [TowerTalk] Cob Web Antenna
From: Gary <gary_mayfield@hotmail.com>
Date: Mon, 30 Oct 2017 12:05:37 +0000
List-post: <mailto:towertalk@contesting.com>
Martin,


     I was thinking about a "reasonable" sized 40 meter antenna, which is why I 
started the thread. I was hoping someone would pop up and say they had done it.


73,

Gary kk0sd


________________________________
From: TowerTalk <towertalk-bounces@contesting.com> on behalf of Martin Sole 
<hs0zed@gmail.com>
Sent: Monday, October 30, 2017 1:29 AM
To: towertalk@contesting.com
Subject: Re: [TowerTalk] Cob Web Antenna

I think the Cobweb(b) antenna is an excellent antenna for limited space
with usefulness as a second antenna for those with a bit more space.
I've seen a lot of discussion about its use in the horizontal plane from
20m-6m. I have a couple of questions that might have simple answers.

What happens when such an antenna is mounted vertically?

Assuming vertical mounting is not massively detrimental, what happens
when a second passive element of similar shape is added at a distance,
ala 2 element yagi/quad?

Most of the Cobweb style antennas I have seen stop at 20m yet they would
seem an ideal way to get reasonable size antennas on 30/40m, I don't
consider a full size 20m quad loop overly big. What's the catch?

Martin, HS0ZED




On 29/10/2017 10:13, Dan Maguire wrote:
> KK0SD wrote:
>>>> Has anyone actually modeled a Cob Web antenna?
> More than you can shake a stick at.  See
>
> https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fac6la.com%2Faecollection9.html&data=02%7C01%7CW1JCW%40hotmail.com%7C4af03f009de944383ce208d51f5fa4b5%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C636449418005637946&sdata=sC1LpLrAL7mFHFhGBoJuMlp97o2IenrnPg0ykk%2Bq%2FQU%3D&reserved=0
>
> Dan, AC6LA
> _______________________________________________
>
>
>
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