Question

Which of the following frequencies are used by an airplane’s DME interrogator?

(a) 1025 mHz to 1150 mHz

(b) 1025 Hz to 1150 Hz

(c) 1025 MHz to 1150 MHz

(d) 1025 KHz to 1150 KHz

This question was addressed to me in exam.

My doubt stems from Aviation Communication Systems topic in division Aviation Communication Systems of Aircraft Maintenance

Answer 1

Correct choice is (c) 1025 MHz to 1150 MHz

To elaborate: 1025 MHz to 1150 MHz are the frequencies are used by an airplane’s DME interrogator. DME frequencies are paired to VHF omnidirectional range frequencies.