Return Loss is the decrease of forward energy in a system when some of the power is being reflected back toward the transmitter.
What will cause high return loss in an RF transmission system, including the radio, cables, connectors and antenna?
A . The use of cables longer than one meter in the RF system
B . High output power at the transmitter and use of a low-gain antenna
C . A Voltage Standing Wave Ratio (VSWR) of 1:1
D . An impedance mismatch between components in the RF system
Answer: D