[Hammarlund] Yaesu Rotor Problem

[K0DAN]

I a\seem to remember reading that you were loathe to climb...I can 
understand. However, a connector clean-up or even a cable replacement beats 
the alternative of replacing the whole damn rotor. This message was meant to 
paint the glass as 1/2 full....hope I succeeded.

73
Dan
K0DAN

----- Original Message ----- 
From: "Glen Zook" <gzook at yahoo.com>
To: "Barry Fox" <foxbw at comcast.net>; <hammarlund at mailman.qth.net>
Sent: Sunday, May 06, 2007 6:54 PM
Subject: Re: [Hammarlund] Yaesu Rotor Problem


>I have "narrowed down" the problem source.
> Unfortunately, it seems to be at the rotor end and not
> the control box end.  I took resistance measurements
> at a "splice" in the control cable which is located
> near the bottom of the tower (took loose the cable
> back into the shack).  The Yaesu uses 5 wires.  Of
> these 2 are used for the motor and 3 go to the
> indicator potentiometer.  I had to splice the wire
> when a squirrel decided to make a meal out of the
> wire.
>
> The 3 wires should be completely separate from the 2
> wires.  However, I am getting a resistance between all
> 5 wires.  What I think is that the weatherproofing on
> the connector that goes into the side of the rotor
> itself has become compromised and corrosion has built
> up causing the resistance (not a short but around 100
> ohms).  I am going to have to climb the tower and
> bring the rotor and the connector to the ground for a
> complete cleaning.
>
> The control wire has been in use for almost 35 years
> at this location and for about 5 years before that in
> another house in which I lived in this particular city
> before purchasing the present abode.  I am going to
> replace the wire while I am "at it"!  The wire "seems"
> to be OK, but 40 years is definitely a LONG time for
> use.
>
> Glen, K9STH
>
>
> --- Barry Fox <foxbw at comcast.net> wrote:
>
> I have no experience with Yaesu rotors, but there is a
> lot of info on their various problems in the
> tower-talk archives. The mailing list addr is:
> towertalk at contesting.com I am not quite sure how to
> access the archives, however.
>
>
>
>
>
>
>
>
>
> Glen, K9STH
>
> Website:  http://k9sth.com
>
>
>
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