What is the basic operating concept of a synchro-type remote indicating system?

The basic operating concept of a synchro-type remote indicating system involves a remote transmitter that electrically signals a receiver. This system is typically used to transmit position data, such as the position of a control surface or the heading of an aircraft, over a distance. The synchro system utilizes electromagnetic principles, where the transmitter generates a signal that correlates with a specific parameter being measured. This signal is then received by the indicator, which translates the electrical information into a readable format for the pilot.

This method is advantageous because it allows for accurate and reliable transmission of data without requiring direct mechanical linkages, which can be subject to wear, friction, or misalignment. Additionally, since the system operates electrically, it can be incorporated into more complex avionics systems, allowing for greater integration and functionality.

The other options describe different types of systems or methods not applicable to synchro-type systems. For example, mechanical signals or pneumatic systems would rely on moving parts or pressure changes, which do not align with the electrical signaling process of synchro-type systems. Likewise, using a thermal sensor pertains to devices that operate based on temperature-measurement principles, which is also outside the scope of synchro-type indicating systems.