[600MRG] the radials on the ground repurposed...

[Warren]

Bart,

     I have been running an on-ground dipole on 630m for the past couple 
of years. It's about 460 feet total length and fed with a 50:200 ohm 
balun that is designed to work at 470kHz.   Pretty good for local work 
but not as effective as feeding my 162' flat top at 70 feet as a 
top-loaded vertical against ground.

The technical basis for earth antennas can be found in the following texts

_Near Earth and Buried Antennas_ by Lavrov and Knyazev (1967)  and 
_Antennas in Matter_ by King and Smith (1981)

https://books.google.com/books/about/Near_Earth_and_Buried_Antennas.html?id=8QJhHwAACAAJ

https://www.amazon.com/Antennas-Matter-Fundamentals-Theory-Applications/dp/0262110741

73 Warren




On 9/19/2018 9:45 PM, Bart Lee wrote:
> Seems that laying a yagi on the desert sands of Arabia does not in any 
> way interfere with its performance, because real ground is so far 
> below and the sand is a near perfect insulator.  Same goes for thick 
> ice.  So maybe those two wires themselves could make a good 160m 
> antenna.  And if so, what would it take to load it for 630m?  
> (Admittedly, I'm a lot better at imagining such things that I am at 
> making them work!) 73 de Bart, K6VK ##
> -- --
> Bart Lee, K6VK, CHRS, AWA. ARRL
>
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