Atec Amplifier-Research-250S1G4 - Manual

Model 250S1G4,
M1 through M5
250 Watts CW
0.8-4.2GHz
The Model 250S1G4 is a portable, self-contained, air-cooled, broadband, completely solid-state amplifier designed for
applications where instantaneous bandwidth, high gain and linearity are required. Push-pull circuitry is utilized in all high
power stages in the interest of lowering distortion and improving stability. The Model 250S1G4, when used with a sweep
generator, will provide a minimum of 250 watts of RF power.
The Model 250S1G4 is equipped with a Digital Control Panel (DCP) which provides both local and remote control of the
amplifier. The DCP uses a graphic liquid crystal display, menu assigned softkeys, a single rotary knob, and four dedicated
switches (POWER, STANDBY, OPERATE and FAULT/RESET) to offer extensive control and status reporting capability. The
display provides operational presentation of Forward Power and Reflected Power plus control status and reports of internal
amplifier status. Special features include a gain control and RF output level protection.
All amplifier control functions and status indications are available remotely in GPIB/IEEE-488 format, RS-232 hardwire
and fiber optic, USB, and Ethernet. The bus interface connector is located on the back panel and positive control of local
or remote operation is assured by a Local/Remote switch on the front panel of the amplifier.
The low level of spurious signals and linearity of the Model 250S1G4 make it ideal for use as a driver amplifier in testing
wireless and communication components and subsystems. It can be used as a test instrument covering multiple frequency
bands and is suitable for a variety of communication technologies such as CDMA, W-CDMA, TDMA, GSM etc. It is also
suitable for EMC Test applications where undistorted modulation envelopes are desired.
The 250S1G4 has the ability to be upgraded at a later date to the Model 350S1G4, 350 watt amplifier. Upgrading to the
Model 350S1G4 allows for future upgrades by utilizing our Expandable Power Technology.
The export classification for this amplifier is 3A001. These commodities, technology or software are controlled for export
in accordance with the U.S. Export Administration Regulations. Diversion contrary to U.S. law is prohibited.
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Freq. (GHz)
MODEL 250S1G4 TYPICAL POWER OUTPUT
P1dB P3dB Psat
Approved for public release by AR RF/Microwave Instrumentation 013114
160 School House Road Souderton, PA 18964-9990 • 215-723-8181 • www.arworld.us Page 1 of 3