| 摘要 |
<p>A device for the remote control of the angular position of an aerial rotor comprising a d.c. motor for the rotation of the rotor and a drive circuit adapted to cause the rotation of the motor in one direction when it receives as input a d.c. voltage higher than a reference value and in the opposite direction when it receives as input a d.c. voltage lower than the reference value. The device provides for a feeder, in proximity of the receiver, for generating at least one d.c. control voltage and comprising a regulator of the value of the voltage as a function of the desired angular position of the rotor of the aerial, and a regulator and stabilizor of the d.c. control voltage, located in proximity of the drive circuit of the motor, to obtain from the d.c. control voltage a stabilized constant voltage of a value lower than the minimum value of the d.c. control voltage, for the feeding of the drive circuit and the motor. The connection between the feeder and the regulator and stabilizor is effected through the cable for RF signals between the aerial and the receiver.</p> |
