E4E11 (B)
What could be the cause of local AM broadcast band signals combining to generate spurious signals on the MF or HF bands?
A. One or more of the broadcast stations is transmitting an over-modulated signal
B. Nearby corroded metal connections are mixing and reradiating the broadcast signals
C. You are receiving skywave signals from a distant station
D. Your station receiver IF amplifier stage is overloaded
