[TowerTalk] CDE Ham series of rotor questions

[Joe Subich, W4TV]

> Question #1 What is the full scale defection rating of the 
> meter in a CDE rotor control box, I.E. 100micro amps

     13V / 13 KOhm = 1 mA 

>               #2 Does anyone know what the output voltage is 
> for the meter transformer as show in schematics found in the 
> manual? There is no indication of secondary voltages  shown 
> in  the schematic.

Transformer is most likely 12 V since it has a halfwave 
rectifier with capacitor input filter driving the 13 V 
zener (regulator). 

None of this is rocket science ... 

73, 

   ... Joe, W4TV 
 


> -----Original Message-----
> From: towertalk-bounces at contesting.com 
> [mailto:towertalk-bounces at contesting.com] On Behalf Of Marc 
> Tessier - VE3TES
> Sent: Thursday, May 22, 2008 11:02 PM
> To: towertalk at contesting.com
> Subject: [TowerTalk] CDE Ham series of rotor questions
> 
> 
> Hello I am looking for some info if possible, I am building a 
> rotor control box for a light duty rotor I have here , and I 
> am basing my design on a Ham 2 Series of Rotor made By CDE. 
> The questions I have are as follows...
> 
> Question #1 What is the full scale defection rating of the 
> meter in a CDE rotor control box, I.E. 100micro amps
> 
>               #2 Does anyone know what the output voltage is 
> for the meter transformer as show in schematics found in the 
> manual? There is no indication of secondary voltages 
>                    shown in  the schematic.
> 
> The rotor I am using already has a 500 ohm feedback variable 
> resistor inside it, and I plan to use a circuit similar to 
> that of the Ham 2 series of rotors so I can have a meter 
> indicator as opposed to 2 silly LEDs that it had before in 
> the original controller...So its vital for me to find out the 
> answers to my 2 questions above so I can complete my design, 
> I am able to rotate the rotor with the switches I have 
> incorporated into the control, now I just need to know where 
> it is pointed ... Hi Hi !!!
> 
> Looking forward to any replies I may get both on and or off 
> the reflector...
> 
> Regards,
> 
> Marc Tessier - VE3TES
> http://home.cogeco.ca/~ve3tes http://www.eqsl.cc/Member.cfm?VE3TES
> ve3tes at cogeco.ca _______________________________________________
> 
> 
> 
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