RF Transmitters Information  Show all RF Transmitters
Manufacturers  RF transmitters are electronic devices that
create continuously varying electric current, encode sine waves,
and broadcast radio waves. RF transmitters use oscillators to
create sine waves, the simplest and smoothest form of
continuously varying waves, which contain information such as
audio and video. Modulators encode these sign wives and antennas
broadcast them as radio signals. There are several ways to
encode or modulate this information, including amplitude
modulation (AM) and frequency modulation (FM). Radio techniques
limit localized interference and noise. With direct sequence
spread spectrum, signals are spread over a large band by
multiplexing the signal with a code or signature that modulates
each bit. With frequency hopping spread spectrum, signals move
through a narrow set of channels in a sequential, cyclical, and
predetermined pattern.  Selecting RF Transmitters  Selecting RF
transmitters requires an understanding of modulati