2. What is the process of sending voice, speech, music or image intended for reception by the general public?

Short wave broadcasting operates in what band?

The transmitting antenna for an AM broadcast station should have a _____ polarization

What broadcasting service

must use directional antennas?

De Forest invented the triode or

Also known as ____

A __________ polarized wave radiates energy in both the horizontal and vertical planes and all planes in between

Since the early 1920s amateur radio operators (or "hams"), limited to lower transmitter power than broadcast stations, have taken advantage of__________ for long distance (or "DX") communication

. _______ band are used for television broadcasting, cell phones, satellite communication, personal radio services, walkie-talkies, cordless phones, and numerous other application

The _____ band is a major part of the shortwave band of frequencies, so communication at these frequencies is often called shortwave radio