[TowerTalk] please advise on terminated vee beam design

[Chris BONDE]

The patent was US 4511898 Terminated Inverted V Antenna with Matching 
Transformer.  I think that it is a narrow patent with the main part being 
the matching transformer.
Chris opr VE7HCB


At 05:41 PM 2001-11-04 -0800, Chris BONDE wrote:

>At 03:16 AM 2001-11-04 -0500, K7GCO@aol.com wrote:
>>I heard back then some one had patent of some kind on the termination concept
>>and RCA wanted to use it without paying.  This story doesn't sound right.
>>Anyhow whoever wanted to use it without paying royalties came up with another
>>way to terminate a Vee Beam.  They dropped a wire to the ground at the end of
>>the Vee Beam and then laid it on the ground for about 200'.  This seems to
>>work but it's not a purely resistive termination and can vary from band to
>>band.  There are several ways to compensate for this and/or improve it.  At
>>the ground secure point, running Nicrom wire on the ground for say 200' is
>>more resistive.
>
>There was a patent on a terminated inverted "V".  I use to have a copy of 
>it.  It was and end fed inverted "V" with the far end terminated with a 
>non-inductive resistor.  To improve efficiency, I believe, it was 
>suggested to run a wire from the grounded terminated resistor under the 
>antenna in the gound back to the gounding part of the feed.
>
>There is another terminated antenna in a vertical format.  Part of the 
>tuning is a line running from the base of the vertical to the shack to a 
>type of tunning circuit.  I have never heard any comments thereon.
>
>I would suggest that a line running under the antenna joined to the 
>grounding termination and to the gounding feed would be more efficient 
>than jus using the earth, soil for the gounding circuit.
>
>Chris opr VE7HCB


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