You can find the answers to the following questions in Appendix A, "Answers to Chapter Review Questions."
RF signals offer relatively short range as compared to light signals. True or false?
What type of weather impacts RF signals the most?
Why does interference cause errors in wireless networks?
What are sources of RF interference?
Multipath affects higher data rates more than lower data rates for 2.4 GHz systems. True or false?
What is meant by a diffused infrared light system?
Approximately up to what range do direct infrared systems operate?
How does modulation make it possible to transmit information through the air?
What attributes of a signal does QAM change in order to represent information?
Spread spectrum generally requires user licenses. True or false?