Crown FM150, User Manual

Page: 10 / 110

1.2.1 Stand-Alone
In the standard configuration, the FM30, FM150, and FM300 are ideal stand-alone
transmitters. When you add an audio source (monaural, L/R stereo, or composite signal),
an antenna, and AC or DC power, the transmitter becomes a complete FM stereo broadcast
station, capable of serving a community.
As stand-alone transmitters, Crown units often replace multiple pieces of equipment in a
traditional setup (exciter, audio processor, RF amplifier).
1.2.2 Backup
In the standard configuration, Crown transmitters are also used in backup applications.
Should your primary transmitter become disabled, you can continue to broadcast while
repairs take place. In addition, the FM transmitters can replace disabled portions of your
existing system including the exciter, audio processor, or amplifier. Transfer switches on
each side of the existing and backup transmitters make the change-over possible with
minimal downtime.
The DC operation option of the FM30, FM150, and FM300 make them attractive backup
units for those times when AC power is lost.
1.2.3 Exciter
In addition to the standard configuration, the FM30, FM150, and FM300 are available in op-
tional configurations to meet a variety of needs.
An "E" suffix, as in the FM30E, for example, represents an exciter-only configuration. In this
configuration, the audio processor and stereo generator boards are replaced with circuitry to
bypass their function. The exciter configurations are the least expensive way to get Crown
quality components into your transmission system.
You might consider the Crown exciter when other portions of your system are performing
satisfactorily and you want to maximize your investment in present equipment.
1-4 FM30/FM150/FM300 User’s Manual