[TowerTalk] Remote Tuner with ZS66BKW or OCF Dipole

Patrick Greenlee patrick_g at windstream.net
Mon Jul 27 21:58:31 EDT 2015


Jim, Thanks for the link.  I have saved the presentation so I can revue 
it as desired.  A bit late to impact my next project as the tower is on 
order and the antenna is on the shop floor in 4 boxes. The good news 
(whew!)  I don't think I am in violation of any of the things you 
pointed out.  The tower is a Tashjian DX-70 and the antenna is a 6m-80m 
Yagi.  Well, the 80m is a dipole but the rest is a Yagi.

Thanks again for sharing.

Patrick    NJ5G

On 7/27/2015 11:53 AM, Jim Brown wrote:
> On Mon,7/27/2015 6:31 AM, Patrick Greenlee wrote:
>> I don't do many A-B comparisons between the OCF dipole and the 
>> vertical anymore, having seen the results so many times before. 
>> Rarely does the dipole win a shootout by much margin.  results are 
>> close but the vertical usually does a little better.  One solid 
>> exception is contacting a friend 120 air miles away.  Sorry, senior 
>> moment (CRS), I don't recall the band but the OCF worked him well and 
>> the vertical was useless. We chalked it up to takeoff angle. This 
>> result is repeatable. 
>
> Not surprising. See http://k9yc.com/VertOrHorizontal-Slides.pdf
>
> The problem with OCF dipoles is that you can't choke them to kill the 
> RX noise.
>
> 73, Jim
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