antenna rotator question

[tmatini]

Dear Friend
As you know some kind of TV antenna rotate by a rotor .the rotor power is supplied by Main antenna wire (the wire that carry sound and image signals).I am looking for a circuit and description to make a board for this problem. How should you lead me?
It will be appreciated if you could direct me to a correct way

Thanks
Touradj

 

[MikeMl]

It depends on what type of motor the rotator has (AC/DC/Voltage?), what kind of limit switches there are?, and what kind of rotation position sensor (pot, pulse?) it has.

 

[ke5frf]

Dear Friend
As you know some kind of TV antenna rotate by a rotor .the rotor power is supplied by Main antenna wire (the wire that carry sound and image signals).I am looking for a circuit and description to make a board for this problem. How should you lead me?
It will be appreciated if you could direct me to a correct way

Thanks
Touradj

This is incorrect. Typically rotors are powered by a "mains" or rectified voltage, not by modulated RF power.

 

[crutschow]

There are antenna rotators made that send motor power and directional signals through the antenna RF lead. But it's unlikely that you will find a circuit for this published anywhere since these tend to be proprietary.

 

[ke5frf]

There are antenna rotators made that send motor power and directional signals through the antenna RF lead. But it's unlikely that you will find a circuit for this published anywhere since these tend to be proprietary.

Indeed, he asked about TV rotors and my answer was skewed by my experience with TX/RX antennas (where this would be unthinkable). Clever that they are doing that now.

 

[tmatini]

i didnt get anything

dear friends
i am going to make an antenna with a rotator that rotator(for example a dc rotator) should supply by antenna wire.it means RF signals and dc power signals are moving through antenna wire.
its simple the rotor supplies by dc power.one way is mix a dc power and RFsingnal at first and filter dc signal in the last. i am looking for best way and some circuit if you know.

thanks for your time
Touradj