Topband: BOG question

Tom W8JI w8ji at w8ji.com
Mon Oct 5 13:32:47 EDT 2015



> Frank et. al,
> The ground does indeed affect the Vf however different types of 
> wires/cables are affected differently and the only way to know for sure is
> to measure the Vf yourself. I use old telephone cable (

None of it, including the cable type, affects the spacing of elements. That 
was Frank's point, and that was all he ever said.

Somehow what Frank said was misconstrued into meaning something about the 
transmission line mode of waves in the antenna itself, which no one ever 
disagreed about. We all know, or should know, the Vp through the length of 
the antenna is affected by ground and dielectrics.

Frank's statement was that the external wave was not affected by the Vf in 
the antenna, so the required spacing does not change between a BOG and any 
other antenna. 



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