[TowerTalk] Freezing prop pitch rotor

[john at kk9a.com]

Is this a K7NV rebuilt prop pitch that is freezing?  I thought that he 
addressed water ingress in converting them into rotators.

Regarding heating, I have used silicone strip heaters in Ring Rotators with 
great success.  Another option is to move your tower further south.

John KK9A / 4


To: "'towertalk at contesting.com'" <towertalk at contesting.com>
Subject: [TowerTalk] Freezing prop pitch rotor
From: "Zivney, Terry L." <00tlzivney at bsu.edu>
Date: Wed, 1 Dec 2010 14:55:12 -0500
List-post: <towertalk at contesting.com">mailto:towertalk at contesting.com>

I seem to be having some problems with my small prop pitch rotor freezing up
When the temperature is below freezing.  I'm assuming it's a two part 
problem.
First, water must be getting in somehow.
Second, the water freezes when its cold.

My rotor installation looks like the fifth picture at
http://www.k7nv.com/proppitch/id36.htm

So, first, how do I manage to reduce water ingress?
Second, how do I manage to heat the rotor?   I don't have 120v at the tower
And it is about 400 feet from the house.

Terry Zivney, N4TZ/9