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FM4000 User’s Manual

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1.1 Your Transmitter Package

The FM4000 is a highly efficient transmitter package designed to set a new standard

in FM transmitter design offering modularity, ease of use, and long-term reliabil-

ity. The FM

4000 package includes two (2) PA2000 amplifiers, two (2) PS2000 power

supplies, a

combiner with coupler, a transmitter controller, and all necessary cabling.

The PA

4000 transmitter package requires no tuning and typically provides 75% RF

efficiency across the band. The PS

2000 power supplies are power factor corrected and

90% efficient. Modern MOSFET technology ensures high AC to RF efficiency

(better than 70% overall) and long-term reliability. The unmatched efficiency of

this

transmitter significantly improves your bottom line by providing cooler

operation and lower power costs.

These modular units are uniquely designed to be lightweight and compact for

convenient shipping, and require only

fourteen RU spaces for installation. Installa-

tion is made simple with just three interconnections between

each amplifier and

power supply. In addition, built-in digital metering and status indicator capabili-

ties enable intuitive operation to further augment the user-friendly design.

Economic long-term reliability is ensured through our carefully engineered solid-

state design.

Each PA2000 features four field-replaceable 500–watt power modules.

This

transmitter delivers 400 to over 4000 watts of RF power output. Use your

existing exciter or purchase the FM

4000T which includes our award-winning FM250

exciter for an unbeatable

kW transmitter package.

Illustration 1–1 FM

4000 Transmitter Package

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