[TowerTalk] Rotor Selection Advice Wanted - Heavy Duty

White, Howard drpaper at kleega.com
Mon Jan 8 16:22:24 EST 2007


I do not know where he comes up with that hearsay nonsense...

The Yaesu G2800DXA does not have any of these alleged problems...

I have MonstIR#1   - it has been up for 2 years... 

Far longer than any other MonstIR!!!

I am about 1 mile from the Pacific Coast about 600' ASL with a clear shot at
every wind that comes from Japan.

Using a Yaesu G-2800DXA...NO SLIPPAGE on the rotor...

I chose the G-2800DXA because it had the best braking rating of all
rotors...

And it does not seem to have any problem whatsoever turning the array.

http://www.ky6la.com/monstir_project.htm  

__________________________________________________________
Howard S. White Ph.D. P. Eng., VE3GFW/K6  ex-AE6SM  KY6LA
Website: www.ky6la.com  
"No Good Deed Goes Unpunished"
"Ham Antennas Save Lives - Katrina, 2003 San Diego Fires, 911"

-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of
donovanf at starpower.net
Sent: Monday, January 08, 2007 11:09 AM
To: towertalk at contesting.com
Subject: Re: [TowerTalk] Rotor Selection Advice Wanted - Heavy Duty

Rick,

As far as I'm aware, the 2800 has been proven time-and-again to be incapable
of holding a MonstIR in even a moderate wind.  I suggest you avoid
needlessly repeating this mistake, and implement your prop-pitch solution
right from the start.

73!
Frank
W3LPL

---- Original message ----
>Date: Mon, 8 Jan 2007 10:21:12 -0800 (PST)
>From: "Rick Karlquist" <richard at karlquist.com>  
>Subject: Re: [TowerTalk] Rotor Selection Advice Wanted - Heavy Duty  
>To: "Stone, Gary R." <Gary.Stone at va.gov>
>Cc: el34guy at aol.com, towertalk at contesting.com, ericksonw at gmail.com
>
>I have a MonstIR that I am putting on an HDX5106.  I am going
>to use the M2 rotator that I got with the tower.  If it breaks,
>I am going to replace it with a prop pitch.  The ProSisTel will
>not fit into my tower.  Probably not even a 689.  Neither will
>the large Alfa Spid, and the smaller one is not strong enough.
>AFAIK, there are no other alternatives, unless you want to mount
>a ProSisTel or large Alfa on top of the tower.  Then the rotor
>has to take all that extra stress, or you have to build a superstructure
>on top of the tower with a bearing above the rotor.
>
>Rick N6RK
>
>
>
>
>
>Stone, Gary R. wrote:
>> Hi,
>>
>> I have the ProSisTel, the model (number escapes me - but it is the one
>> rated for 39 sq feet).  I have been happy with it for the time I have
>
>> WARC7 about 12 feet about the Optibeam).  I would not (personally)
>> recommend the M2 Orion rotator (went thru 3 of them).
>>
>> Gary Stone, N5PHT
>>
>
>> I have a Steppir Monstir antenna (Love it by the way).
>>
>> It has a Wind Surface Area of 23.9 square feet.
>
>>
>> The rotor will be mounted in a US Towers 589 or 689 as soon as I can
>> purchase a used one (any leads on this would also be appreciated!).
>>
>> 73,
>>
>> Bill Erickson
>>
>> N6MXU
>> _______________________________________________
>
>
>
>_______________________________________________
>
>
>
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