9-15B3 A
 The MF/HF transceiver produces strong AF output but no signals are heard on any frequency. What is the most likely cause?
A. The transceiver is connected to a "Dummy Load."
B. A high Standing Wave Ratio (SWR) in the antenna system.
C. A "crowbar" circuit in the power supply is activated.
D. The squelch circuit has failed.
