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Topband: Inv L Radiation Patterns?

To: topband@contesting.com
Subject: Topband: Inv L Radiation Patterns?
From: Steve Harrison <k0xp@k0xp.com>
Date: Sun, 14 Jan 2024 17:59:22 -0800
List-post: <mailto:topband@contesting.com>
Has anybody plotted the radiation patterns for inverted Ls on 160? I'm particularly interested in those for relatively-low antennas, say 40 ft max, over fairly-poor ground such as desert sand with the water table perhaps 120 feet down.

TNX,

Steve K0XP


On 1/2/2024 6:56 AM, VE6WZ_Steve wrote:
Today I uploaded a short 6 minute video showing how to use the Kiwi radios 
located all over the world to test your transmit antenna.

How is the front-to-back on your 4 square really performing?
It the dipole or the vertical performing better on the DX path?
Make an azimuth polar plot of your Yagi and see how it compares to modelling.  
How does the pattern change across the band?

This is not a new thing, but in this video I describe the method for those that 
may not be familiar with it.
No test equipment is needed.  All that’s required is a PC sitting beside your 
radio.

Using the “S-meter” function on the Kiwi radios makes it quick and easy to 
record signal levels from your transmit antenna.
This method is far more accurate than trying to estimate a signal level while 
watching a bouncing analog or digital S-meter.

https://youtu.be/_BMeVJQ_cwI  <https://youtu.be/_BMeVJQ_cwI>

73, es HNY to all
Steve, VE6WZ
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