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  • A survey of marine radio progress, with special reference to R.M.S. �Queen Mary�
    A movable outer scale, divided into 360 degrees, is provided for obtaining true bearing and is operated by a Sperry repeater motor mounted inside the binnacle and in step with the master gyro -compass.
  • Global Mobile Satellite Communications
    If the assigned common signaling channel signal is identified during this search the step tracking system takes over to switch the antenna above/below and to each � � changes to the vessel�s course by sensing signal changes in the ship�s gyro repeater circuitry. Satellite signal strength is monitored and if necessary, the A/E stepper motors are commanded to search for �
  • Electronic Applications
    � of iron carried on the gyro, caused almost zero torque and hence no disturbance to the gyro, but the output of the amplifier drove an azimuth motor with sufficient torque to operate repeater compass transmitters, metal mike � � accuracy of the master gyro . So electronics first stepped into the Sperry Company as a new tool which solved one of our �
  • The electrical engineering aspect of degaussing
    The ship's heading at any instant is indicated by a gyro - repeater mounted adjacently, and under hand control the operator rotates the control switches to the corresponding position shown on the indicator plate, thus actuating the con- tactors to give the required � � and MQ are of the face-plate type and are provided with 20 steps ; those for coils � � Fleet had already been fitted with D.G. installations energized from low-voltage motor - generators, another scheme �
  • A History of Some Foundations of Modern Radio-Electronic Technology
    But in 1912, the Sperry Gyroscope Company and the U. S. Navy were developing a precise and reliable motor -driven gyrocompass with remote repeaters . Here, of course, the gyro setting was changed manually from time to time. The gyroscope for the Natalia, therefore, was fitted with electromag- netic solenoids to step the course setting �
  • Gyro compasses for gunfire control
    It is operated by a strong e-minute step-by- step motor operated in the usual way by the �Static� on board. It would be of convenience if the repeater could be illuminated at night when necessary. � moment to discuss \\.hat happens to t l c rrxlings of a gyro compass when it �
  • C.W. radio aids to homing and blind approach of naval aircraft
    Any change in the ship's course is introduced into the differential gear (see Fig. 2) by a step-by- step motor driven from the ship's gyro -compass system, and causes the carriage carrying the intermediate wheels to be displaced. ^yro-compassl repeater supp|y|�" .
  • The Radio Equipment of the Steam Yacht "Elettra"
    One electrically operated repeater for steering purposes is located on the bridge, and another on the top � Figure 2 shows the yacht being steered by Sperry gyro compass. is supplied by a motor alternator driven from the yacht's main lighting battery. The filament current is supplied by small step -down transformers and is regulated by chokes with variable �
  • A mathematical model for single-stack step motors
    A MATHEMATICAL MODEL FOR SINGLE-STACK STEP MOTORS DuringWorld War II, the U.S. Navyapplied this device in various naval equipment such as a gyro compass repeater .