[TowerTalk] High VSWR

[Doug Ronald]

SO2R is still feasible with the proper diplexer as long as the two operators can work stations in the same direction. This antenna's beamwidth is 70 degrees, so there is plenty of leeway geographically.
A hard-fought county variance was required for this antenna. Multiple towers would have been right-out.
-W6DSR

-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces at contesting.com] On Behalf Of Kelly Taylor
Sent: Sunday, September 1, 2019 06:28
To: Glenn Pritchard
Cc: Jim Thomson; dj7ww at t-online.de; towertalk at contesting.com
Subject: Re: [TowerTalk] High VSWR

I can see the attraction of a system such as this to government, where a single antenna to cover all of HF might be needed, but in an amateur station, it seems like a ton of money putting all eggs into one basket. One clamp failure and your entire antenna system is a crumpled heap of aluminum. 

Perhaps one tower is all he had space to raise, but it also seems like a huge sum of money to not even get SO2R capability.

Cool project to follow in the photo essay, and condolences on the final result, sincerely. 

73, kelly, ve4xt 

Sent from my iPhone

> On Sep 1, 2019, at 08:04, Glenn Pritchard <gpritchard7000 at gmail.com> wrote:
> 
> The antenna and tower design was fine, we had over the years installed quite a few of these systems from Sabre, Hy-Gain, Rockwell to US Antenna and never had a failure.
> It was unfortunate that the clamps were not torqued to spec.
> Reading from the projects start there were issues with the pressurized line etc.
> These tilt over LP’s are made to do this along with that tilt boom bracket.
> Cable crimp’s were never used on these turnkey LP antennas that we had installed and the rotation system has been pretty much standard.
> 
> Glenn, VA7UO 
> 
> Sent from my iPhone
> 
>> On Sep 1, 2019, at 5:13 AM, "dj7ww at t-online.de" <dj7ww at t-online.de> wrote:
>> 
>> 
>> That is a bad idea, the torque force on the rotor under high winds will become much larger.
>> 
>> 73
>> Peter
>> 
>> 
>> 
>> 
>> 
>> -----Original-Nachricht-----
>> Betreff: [TowerTalk] High VSWR
>> 
>> ##  with  more  boom on the  shorter ele  side.....vs  the   longer  ele  side, the required  rotor
>> torque  will  be  sky high.   They  have  mounted the  boom  at its   CG.   They  should have 
>> mounted at  center of  boom,  and  added  a counterweight  at  light  end  of  boom. 
>> 
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