E1A01 : Why is it not legal to transmit a 3 kHz bandwidth USB signal with a carrier frequency of 14.348 MHz?
A
USB is not used on 20-meter phone
B
The lower 1 kHz of the signal is outside the 20-meter band
C
14.348 MHz is outside the 20-meter band
D
The upper 1 kHz of the signal is outside the 20-meter band
Correct Answer: The upper 1 kHz of the signal is outside the 20-meter band