[TowerTalk] 40M rotary dipole

[Dave Sublette]

Well regarding the bonding of the coax shield at the top and bottom of the tower… I’m having a hard time understanding this.  If the shield of the coax is connected to the top of the tower(or at the point on the tower where the antenna is mounted), one side of the dipole then is connected to the tower at that point. I would think that would disturb the radiation pattern, the match, and anything else that can be disturbed (including me) !   

Dave, K4TO 
> On Sep 20, 2017, at 8:04 PM, Wes Stewart <wes_n7ws at triconet.org> wrote:
> 
> It's not even pretty easy to measure these values.
> 
> On 9/20/2017 3:29 PM, Jim Thomson wrote:
>> ##  Pretty easy to get 7500-11,000 ohms of RS these days.... using just 4 x cores +  teflon  RG-142U..and thats
>> from   160-10m. http://myantennas.com/wp/product/cmc-230-5k/     He can put a balanced output on the box...
>> with whatever coax connector you want on the input side.   Put 2 of these in series for an eye opener.
> 
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