[TowerTalk] 16om vertical and the number of radials

[Paul Christensen]

Jorge, 

N6LF's material is based largely on measured results in support of theory.  

Paul, W9AC

-----Original Message-----
From: TowerTalk <towertalk-bounces at contesting.com> On Behalf Of Jorge Diez - CX6VM
Sent: Friday, December 2, 2022 9:57 AM
To: Paul Christensen <w9ac at arrl.net>
Cc: Ignacy Misztal <no9e at arrl.net>; tower and HF Antenna Construction Topics. <towertalk at contesting.com>
Subject: Re: [TowerTalk] 16om vertical and the number of radials

I think Paul wants to know the "real" situation, not theory. He want to know if the theory is 100% in accordance with real big stations with many radials on the antennas

73,
Jorge
CX6VM/CW5W

El vie, 2 dic 2022 a las 11:50, Paul Christensen (<w9ac at arrl.net>) escribió:

> Ignacy,
>
> There's a lot of published information that addresses your question.  
> Some material is rooted in commercial applications and even more in 
> the amateur literature where modeling is compared with measured results.
>
> As a starting point, I would carefully read Rudy Stevens' material:
>
> https://www.antennasbyn6lf.com/design_of_radial_ground_systems/
>
> Paul, W9AC
>
> -----Original Message-----
> From: TowerTalk <towertalk-bounces at contesting.com> On Behalf Of Ignacy 
> Misztal
> Sent: Friday, December 2, 2022 9:25 AM
> To: tower and HF Antenna Construction Topics. 
> <towertalk at contesting.com>
> Subject: [TowerTalk] 16om vertical and the number of radials
>
> Do more radials on a 160m vertical bring more improvements than shown 
> by simulation?
>
> Most simulations show that going above 32 radials on 160m brings 
> minimal improvement, say 1 db to 2 max. Even for low angle signals.
>
> On the other hand, some really loud stations n 160m, say 5-10 db above 
> the crowd, use a massive amount of radials. This is for inland 
> stations, far away from salt water.
>
> Is there any discrepancy between modeling and real life performance 
> with the number of radials? Does adding radials beyond 32 help much? 
> Any real stories?
>
> Ignacy NO9E
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--
73,
Jorge
CX6VM/CW5W
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