[TowerTalk] RF in rotor control ?

Jorge Diez - CX6VM cx6vm.jorge at adinet.com.uy
Sun Nov 9 02:39:21 EST 2008


 
Hi Mike,

Rotor cable and coaxial from antennas came together under ground from tower
to shack. I will add some split beads before it is connected to the rotor
control box.

73,
Jorge
CX6VM/CW5W


-----Mensaje original-----
De: Michael Germino [mailto:ad6aa at sbcglobal.net] 
Enviado el: Domingo, 09 de Noviembre de 2008 12:04 a.m.
Para: towertalk at contesting.com; Jorge Diez - CX6VM
Asunto: Re: [TowerTalk] RF in rotor control ?

I would guess the problem is not coming from the rotor control box, but from
the cable (Or power cable) coming out of the box acting as a antenna.

Try separating the rotor cable from the other cables of your station or try
some split beads on the Rotor cables.

If it was me I would just leave the ground wire off the MFJ.

Mike
73, AD6AA


--- On Sat, 11/8/08, Jorge Diez - CX6VM <cx6vm.jorge at adinet.com.uy> wrote:

> From: Jorge Diez - CX6VM <cx6vm.jorge at adinet.com.uy>
> Subject: Re: [TowerTalk] RF in rotor control ?
> To: towertalk at contesting.com
> Date: Saturday, November 8, 2008, 6:48 AM Hi Steve,
> 
> Prosistel control (original with PST61D rotor). From control to 
> MFJ-434 is 1 feet.
> 
> I disconected the ground from MFJ-434 to get it longer from controller 
> and no problem. Seems the problem is when conected to ground!!...
> 
> I put the MFJ-434 again 1 feet from the rotor control WITHOUT ground 
> and no problem. I connect the ground and start the problem. I 
> disconnect again the ground and NO problem... Incredible...
> 
> I don´t know how to know if there´s PWM...
> 
> 73,
> Jorge
> CX6VM/CW5W
> 
>

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