[RFI] RT-21 rotor controller RF problem

Jorge Diez - CX6VM cx6vm.jorge at gmail.com
Mon Jun 4 05:11:24 PDT 2012

Hello Tim,

Thanks for the info. Nice field test :-)

I thought I had a problema in the mast, maybe not straight and doing bad in
the crapodine, but I don´t think so.

Yesterday was a windy day and it rotate full 360 degreed without problem.

Will se next time with the guy up in the tower if he can see something wrong


-----Mensaje original-----
De: Tim Duffy K3LR [mailto:k3lr at k3lr.com] 
Enviado el: domingo, 03 de junio de 2012 20:27
Para: 'Jorge Diez - CX6VM'; rfi at contesting.com
Asunto: RE: [RFI] RT-21 rotor controller RF problem

Hello Jorge:

I have 22 RT-21 controllers at my station. We have never had RFI problems -
either to the RT-21 or RFI from it - with full 6 bands of multi transmitters
in operation.

You may have a problem with your rotor on your tower (which is why the RT-21
operated in fail safe mode), not the RT-21.

Tim K3LR

-----Original Message-----
From: rfi-bounces at contesting.com [mailto:rfi-bounces at contesting.com] On
Behalf Of Jorge Diez - CX6VM
Sent: Sunday, June 03, 2012 6:02 PM
To: rfi at contesting.com
Subject: [RFI] RT-21 rotor controller RF problem



Last weekend during WPX contest I had a problem when turning my rotor with
the Green Herron RT-21 controller.


It have a feature that start slowly (4 of 10 level) till it reach the full
rotation speed (10 of 10).


When I wanted to turn with the “point and shut knob” to the right, it start
at 4, 5, 6   and didn´t reach the 10 level, it stopped turning. This didn´t
happens when I turn to the left.


So in the contest sometimes I needed to use the CW button to rotate it to
the right instead the “point and shut knob”


Absolutely no winds that cause it to stop.


Today I went to the station and the rotor worked 100% to the left and to the
right, so now I am thinking it´s a RFI problem during WPX contest


Any idea how to solve the RT-21 RFI problem?









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