Why are received spread spectrum signals resistant to interference?
What spread spectrum communications technique uses a high-speed binary bit stream to shift the phase of an RF carrier?
How does the spread spectrum technique of frequency hopping work?
What is the primary effect of extremely short rise or fall time on a CW signal?
What is the most common method of reducing key clicks?
What is the advantage of including parity bits in ASCII characters?
What is a common cause of overmodulation of AFSK signals?
What parameter evaluates distortion of an AFSK signal caused by excessive input audio levels?
What is considered an acceptable maximum IMD level for an idling PSK signal?
What are some of the differences between the Baudot digital code and ASCII?
What is one advantage of using ASCII code for data communications?