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## Re: [TowerTalk] Balun Recommendation

 Subject: Re: [TowerTalk] Balun Recommendation Steve Hunt Thu, 19 Apr 2012 17:09:41 +0100 mailto:towertalk@contesting.com>
 ```Gerald, Exactly so - simple Ohm's Law, and easy to confirm with modelling! 73, Steve G3TXQ On 19/04/2012 12:42, TexasRF@aol.com wrote: > Hi All, this is an observation from an innocent bystander: > > With constant power level, if the antenna Z increases, The voltage > increases as well, right? Conservation of energy then requires the current to > decrease, right? > > The rf voltage on the coax shield where it connects to the antenna would > be the voltage referenced to ground at that half of the antenna. The choke > current would be that voltage divided by the choke impedance (also > referenced to ground), Is that right? > > So, one might think that a higher Z antenna = higher E = higher choke > current? If so, power loss is then I^2 X whatever resistive loss is present in > the choke. > > 2X Z = 1.414 X voltage = 1.414 X choke current = 2 X loss. if the above is > true? > > 73, > Gerald K5GW > > > > > > > > > > _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/towertalk ```
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