railway RRB JE (CBT I + CBT II) Mock Test 2024 Communication Systems Pulse Modulation Time Division Multiplexing (TDM)
The different access methods which permit many satellite users to operate in parallel through a single transponder without interfering with each other are
1. Frequency Division Multiple Access (FDMA)
2. Time Division Multiple Access (TDMA)
3. Code Division Multiple Access (CDMA)
Which of the above are correct?
1
1 and 2 only
2
1 and 3 only
3
2 and 3 only
4
1, 2 and 3