Question

The downlink frequency is lower than the uplink frequency.

(a) True

(b) False

The question was posed to me by my school teacher while I was bunking the class.

My doubt is from Satellite Communication Systems in chapter Satellite Communication of Avionics

Answer 1

Correct answer is (a) True

The explanation is: The original signal being transmitted from the earth station to the satellite is called the uplink, and the re-transmitted signal from the satellite to the receiving stations is called the downlink. Usually, the downlink frequency is lower than the uplink frequency. A typical uplink frequency is 6 GHz, and a common downlink frequency is 4 GHz.