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Re: Topband: WEB address correction: : RDF in the real-world

To: Topband <topband@contesting.com>
Subject: Re: Topband: WEB address correction: : RDF in the real-world
From: donovanf@starpower.net
Date: Fri, 4 Mar 2016 13:00:36 -0500 (EST)
List-post: <topband@contesting.com">mailto:topband@contesting.com>
The correct URL is: 

www.qsl.net/k1fz/bogantennanotes.html 

----- Original Message -----

From: "K1FZ-Bruce" <k1fz@myfairpoint.net> 
To: "Topband" <topband@contesting.com> 
Sent: Friday, March 4, 2016 5:54:09 PM 
Subject: Topband: WEB address correction: : RDF in the real-world 


IV3PRK at HC1PF with the help of friends proved with extensive research and 
modeling, that a BOG antenna is a tuned circuit not a traveling wave antenna. 

Please see the IV3PRK research and modeling links at the bottom of my BOG 
antenna page www.bogantennanotes.html 

www.qsl.net/k1fz/bogantennanotes,html 

73 
Bruce-k1fz 



The Bog is a travel wave antenna, and it is based on the difference in velocity 
on the ground and on the wire, it does not interact or deteriorate with other 
vertical structures like the flags. The SAL antenna is really a K9AY very 
complicated but same directivity and RDF, the TX antenna does deteriorate the 
pattern and you can’t see the same reduction in signal to noise ratio because 
the REAL RDF is no longer the same as the CALCULATED RDF. The BoG performance 
is more predictable, like the beverages and the real RDF is close to calculated 
RDF. 

The idea was to quantity what directivity can do for you in practical DXing. 

Regards 
JC 

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----- End forwarded message ----- 

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