E4A09 (A)
Which of the following describes a good method for measuring the intermodulation distortion of your own PSK signal?
A. Transmit into a dummy load, receive the signal on a second receiver, and feed the audio into the sound card of a computer running an appropriate PSK program
B. Multiply the ALC level on the transmitter during a normal transmission by the average power output
C. Use an RF voltmeter coupled to the transmitter output using appropriate isolation to prevent damage to the meter
D. All of these choices are correct
