Get ready for the FCC General Radiotelephone Operator License (GROL) exam. Study with flashcards and multiple choice questions, each with hints and detailed explanations. Prepare effectively for your licensing test!

Multiple Choice

What is the purpose of a synchro transmitter and receiver?

Synchro systems are used to send angular position as an electrical signal. The transmitter is connected to the part whose angle you want to know (such as an antenna). As the shaft turns, it creates three-phase voltages whose relative phases encode the angle. The receiver picks up those voltages and drives an indicator so you see the antenna’s position remotely. This is why the purpose is to transmit the angular position of the antenna to the indicator unit. It’s not about timing pulses, preventing operation, or controlling motor speed.

Synchro systems are used to send angular position as an electrical signal. The transmitter is connected to the part whose angle you want to know (such as an antenna). As the shaft turns, it creates three-phase voltages whose relative phases encode the angle. The receiver picks up those voltages and drives an indicator so you see the antenna’s position remotely. This is why the purpose is to transmit the angular position of the antenna to the indicator unit. It’s not about timing pulses, preventing operation, or controlling motor speed.