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Satellite Communication - Engineering

Q1:

A telephone user while talking to a person via a satellite has to wait for reply for about __________ millisecond.

A 100

B 270

C 470

D 540

ANS:D - 540

Double hop may have 540.

But double hop means two times satellite to earth and the question doesn't define this. For single-hop transmission(outgoing and receiving).

We have calculated earlier distance b/w earth to satellite is 36000km and here we have taken 36000*2 = 72000km.

Hence 240 ms is right.