Letter Re: Radio Communication and Antennas
All radios need an antenna and the type of antenna chosen will determine important performance characteristics. Let us start with a radio most people are familiar with. The citizens band radio is typically supplied with some form of mobile vertical whip style antenna. This antenna is usually mounted vertically on the vehicle and it radiates radio frequency energy with mostly vertical polarization. Most CB users have vertical antennas so they are most sensitive to similar signals having vertical polarization. If a person using CB radio wanted to make his signal heard by his comrades more and less by people outside …