Which of the following type of direction finder has a system that rotates the loop, using a servo system until a null is found?(a) Fixed loop(b) Rotatable loop(c) Rotating loop(d) Fixed, crossed loopI got this question in an interview for internship.The above asked question is from Point Source Radio Systems in chapter Terrestrial Radio Navigation System of Avionics

Which of the following type of direction finder has a system that rota

1.	Which of the following type of direction finder has a system that rotates the loop, using a servo system until a null is found?(a) Fixed loop(b) Rotatable loop(c) Rotating loop(d) Fixed, crossed loopI got this question in an interview for internship.The above asked question is from Point Source Radio Systems in chapter Terrestrial Radio Navigation System of Avionics
Answer» The correct choice is (c) Rotating loop Best explanation: The rotating loop is driven by a motor and forming PART of a servo system that rotates the loop until a null is found and then stops. They are sometimes REFERRED to as the RADIO compass and are housed INSIDE plastic STRUCTURES that do not reflect radio waves.

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