[TowerTalk] Rotor options besides a Prop Pitch?

john at kk9a.com john at kk9a.com
Mon Mar 4 20:45:35 EST 2019


I imagine that cost is K9OM's deterrent and not the noise. Having a motor spinning at 10,000 RPM turning your antennas is a sweet sound!  

John KK9A

-----Original Message-----
From: N2TK, Tony [mailto:tony.kaz at verizon.net] 
Sent: Monday, March 04, 2019 6:49 PM
To: john at kk9a.com
Cc: towertalk at contesting.com; rlvz at aol.com
Subject: Re: [TowerTalk] Rotor options besides a Prop Pitch?

The prop pitch will turn a house. But they can be loud. Some reduce the voltage so they don’t scream. Use rubber gaskets for isolation based on my experience. Nothing stronger than a prop pitch. Now using the large Prosistel with a 500 ohm pot with a Green Heron controller from WX0B
Tony

Sent from my iPhone

> On Mar 4, 2019, at 7:35 PM, <john at kk9a.com> <john at kk9a.com> wrote:
> 
> I turned a very heavy-duty home brew 20m beam with a 36' boom and a 2el 40m
> Optibeam in windy Aruba with a Yaesu G-2800 DXA without any issues, ever.
> 
> John KK9A
> 
> 
> RVZ rlvz at aol.com 
> Hi Guys,
> 
> I'd like to thank everyone for your rotor recommendations regarding my post
> seeking the "strongest and most reliable rotor".  The "Prop Pitch" was the
> big winner with almost no competition!
> I'm seeking strong and reliable rotors for multiple towers and may not need
> a PropPitch for towers with smaller antenna loads.  Such as, for a tower
> holding a single HF Yagi with a 36' to 42' boom and 18 to 20 sq.ft. of wind
> load, besides a Prop Pitch are there any strong and reliable rotor options
> for this size antenna load?
> 
> Thanks & 73,
> Dick- K9OM
> 
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> 
> 
> 
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