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Re: [TowerTalk] What do do on 80 when height restricted?

To: Jim Thomson <jim.thom@telus.net>, "towertalk@contesting.com" <towertalk@contesting.com>
Subject: Re: [TowerTalk] What do do on 80 when height restricted?
From: Tom_N2SR via TowerTalk <towertalk@contesting.com>
Reply-to: Tom_N2SR <tom_n2sr@yahoo.com>
Date: Tue, 25 Oct 2016 19:35:54 +0000 (UTC)
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Go back and read K9YC's articles about many short radials close to the 
feedpoint.  Isn't the idea to reduce/eliminate losses?    
When I added added the HF2V, I had about 4 radials and the BW on 80 was about 
150 kc.  I kept adding radials, and the bandwidth kept dropping - which is 
good, since that means that that ground losses are being reduced.   
The bandwidth finally dropped to about 50 kHz.  For an 1/8 wave antenna, that 
is pretty good.  
Tom, N2SR
PS:  How about a link to the arrl's mast calculator?   
      From: Jim Thomson <jim.thom@telus.net>
 To: towertalk@contesting.com 
 Sent: Monday, October 24, 2016 7:20 PM
 Subject: [TowerTalk] What do do on 80 when height restricted?
   
Date: Mon, 24 Oct 2016 19:40:06 +0000 (UTC)
From: Tom_N2SR <tom_n2sr@yahoo.com>
To: "towertalk@contesting.com" <towertalk@contesting.com>
Subject: Re: [TowerTalk] What do do on 80 when height restricted?

I second (or third) the HF2V. ? I had one up with about 60 radials for about 6 
years. ?Before I put it up, I had less than 30 countries on 40 and 80. ?When I 
took it down I had 240 countries on 40 and 185 countries on 80. ?
I was even able to create a switching scheme to switch resonances between cw 
and ssb. ?
Tom, N2SR

##  and how do you install  60 x  long radials  on a city lot ?    Even if the 
vert is elevated, the radials then HAVE to be  long, to resonate it on 80m.  
Thats  tough on a city lot.    The problem with ground mounted verticals, 
on city lots, is they radiate into the home.  Then with stucco homes, there is 
chicken  mesh beneath the stucco... and ditto with the neigbours, like being in 
a faraday shield.  Once elevated in the clear, the difference can be
astounding.  But radials on the low bands like  80m is tough. 

Jim  VE7RF



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