Distinguish between transponder bandwidth and channel bandwidth in a SATCOM system.

• A. Transponder bandwidth is the RF spectrum allocated to the transponder; channel bandwidth is the data-carrying bandwidth within that spectrum determined by modulation/coding.
• B. Channel bandwidth refers to the RF spectrum allocated to the transponder.
• C. Transponder bandwidth is the time interval; channel bandwidth is amplitude.
• D. Transponder bandwidth is in baseband; channel bandwidth is in RF.

Answer: (B)