I have a big wire (maybe AWG 1 or more) under ground to the shack. From
there a AWG 8 in the back of the desk with singre wires to each radio, amp,
rotors, antenna selector, etc.
For now the problem was solve taking off the ground from the MFJ-434..!
73,
Jorge
CX6VM/CW5W
-----Mensaje original-----
De: towertalk-bounces@contesting.com
[mailto:towertalk-bounces@contesting.com] En nombre de W2RU - Bud Hippisley
Enviado el: Sábado, 08 de Noviembre de 2008 01:26 p.m.
Para: towertalk@contesting.com
Asunto: Re: [TowerTalk] RF in rotor control ?
On Nov 8, 2008, at 9:48 AM, Jorge Diez - CX6VM wrote:
> 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!!...
>
This sounds similar to a problem discussed many years ago about hum induced
in receivers by the TailTwister T2X rotor controller when the brake solenoid
was activated. As I recall, the "quick" solution was to switch from the
3-wire power cord plug that was stock on the T2X box and use a 2-wire
adapter or other means of breaking the safety ground. I think the person
who analyzed the problem back then said the symptoms indicated a problem
with the ham's shack grounding.
Bud, W2RU
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
No virus found in this incoming message.
Checked by AVG.
Version: 7.5.549 / Virus Database: 270.9.0/1774 - Release Date: 07/11/2008
07:58 p.m.
No virus found in this outgoing message.
Checked by AVG.
Version: 7.5.549 / Virus Database: 270.9.0/1774 - Release Date: 07/11/2008
07:58 p.m.
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|