Towertalk
[Top] [All Lists]

[TowerTalk] A Question of GAIN

To: <towertalk@contesting.com>
Subject: [TowerTalk] A Question of GAIN
From: n7cl@mmsi.com (Eric Gustafson)
Date: Mon, 19 Oct 1998 08:08:51 -0700

Josh,

I think it would go more like:

4.6 (for array element) + 3 (for the next one) + 3 (for the next
  two) - (losses in harness and connectors)

So I wouldn't expect more than 10 dBd net.  And then only on the
band where the spacing was optimum.

73, Eric  N7CL


>From: "Josh Logan" <jlogan@bewellnet.com>
To: <towertalk@contesting.com>
>Date: Sun, 18 Oct 1998 16:17:14 -0600
>
>Assume a person built a 4 stack of C3 Force 12 multi band yagis
>
>The C3 is given 4.6 dbd net gain for 20m
>
>IF stacked at say 35ft, 65 ft, 95 ft and 125 ft
>What would be resulting GAIN?   
>
>I would guess around 4.6 + 3.0 + 3.0 + 3.0 = 13.6 dbd net gain
>
>Is this reasonable??  What is a good spacing ?  30 ft  ?
>assuming 20m performance is important.
>
>Josh  N7XM        dreaming of Four Stack

--
FAQ on WWW:               http://www.contesting.com/towertalkfaq.html
Submissions:              towertalk@contesting.com
Administrative requests:  towertalk-REQUEST@contesting.com
Problems:                 owner-towertalk@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm


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