[TowerTalk] 16om vertical and the number of radials

[Paul Christensen]

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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