User's Manual - Crown Broadcast
User's Manual - Crown Broadcast
User's Manual - Crown Broadcast
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1.1 Your TransmitterThe FM30, FM150, and FM300 are members of a family of FM stereo broadcasttransmitters. <strong>Crown</strong> transmitters are known for their integration, ease-of-use, andreliability.The integration is most apparent in the standard transmitter configuration whichincorporates audio processing, stereo generation, and RF amplification withoutcompromised signal quality. A single <strong>Crown</strong> transmitter can replace several pieces ofequipment in a traditional system.Ease-of-use is apparent in the user-friendly front panel interface and in the installationprocedure. Simply select your operating frequency (using 5 external switches), add anaudio source, attach an antenna, and connect AC or DC power and you're ready tobroadcast. Of course, the FM series of transmitters also feature more sophisticatedinputs and monitoring connections if needed.Reliability is a <strong>Crown</strong> tradition. The first <strong>Crown</strong> transmitters were designed for rigors ofworldwide and potentially portable use. The modular design, quality components,engineering approach, and high production standards ensure stable performance.Remote control and metering of the transmitter are made possible through a built-in I/Oport. For more direct monitoring, the front panel includes a digital multimeter display andstatus indicators. Automatic control circuitry provides protection for high VSWR as wellas high current, voltage, and temperature conditions.Illustration 1-1 FM150 Stereo <strong>Broadcast</strong> TransmitterThis manual describes the FM30, FM150, and FM300 because all three transmittersshare common design factors. Specific product differences are noted throughout themanual. In physical appearance, the FM30 differs from the FM150 and FM300 in that itlacks the power amplifier and cooling fan assembly on the back panel.1-2 FM30/FM150/FM300 User’s <strong>Manual</strong>