Which technique uses two different antennas to reduce traffic on the same frequency?(a) Spatial isolation(b) Frequency reuse(c) Multiplexing(d) ModulationThe question was posed to me at a job interview.My question is based upon Satellite Communication Systems topic in chapter Satellite Communication of Avionics

Which technique uses two different antennas to reduce traffic on the s

1.	Which technique uses two different antennas to reduce traffic on the same frequency?(a) Spatial isolation(b) Frequency reuse(c) Multiplexing(d) ModulationThe question was posed to me at a job interview.My question is based upon Satellite Communication Systems topic in chapter Satellite Communication of Avionics
Answer» Correct ANSWER is (b) Frequency reuse Easy explanation: In the frequency reuse technique two systems use the same frequency, although operating on exactly the same frequencies, they are isolated from each other by the use of special antenna techniques. For example, a VERTICALLY POLARIZED antenna will not respond to a horizontally polarized signal and vice versa. Or a left-hand circularly polarized (LHCP) antenna will not respond to a right-hand circularly polarized (RHCP) signal and vice versa.

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