Amplifier Research 1000A250
RF Amplifier 100 kHz - 250 MHz, 1000W CW

Amplifiers - RF and Microwave >> 1 GHz or Less and 1000 Watt or More >> RF Amplifier 100 kHz - 250 MHz, 1000W CW





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Product Overview

RENT AMPLIFIER RESEARCH 1000A250 RF AMPLIFIER

The Amplifier Research 1000A250 is a self-contained, air-cooled, broadband, completely solid-state amplifier designed for applications where instantaneous bandwidth and high gain are required. Push-pull MOSFET circuitry is utilized in all high power stages in the interest of lowering distortion and improving stability.

The AR 1000A250 Amplifier is equipped with a Digital Control Panel (DCP) which provides both local and remote control of the amplifier. The DCP uses a 3¾-inch diagonal graphic 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, internal/external automatic level control (ALC) with front panel control of the ALC threshold, pulse input capability and RF output level protection. Also included is an internal RF detector which provides an output for use in self-testing or operational modes.

All amplifier control functions and status indications are available remotely in GPIB/IEEE-488 format, and RS-232 hard wire and fiber optic. The buss interface connectors are located on the back panel and positive control of local or remote operation is assured by a keylock on the front panel of the amplifier.

High efficiency universal input, power factor corrected switching power supplies provides DC to all internal subassemblies.

Housed in a stylish, contemporary enclosure, the Model 1000A250 provides readily available RF power for typical applications such as RF susceptibility testing, antenna and component testing, watt meter calibration, particle accelerators, plasma generation, communications and use as a driver for higher power amplifiers.

Specifications of the Amplifier Research 1000A250 include:

RATED OUTPUT POWER...................................................................... 1200 watts, 100 kHz – 100 MHz

1200 – 700 watts, 100 MHz – 250 MHz

(derating slope of 3.33 watts/MHz)

INPUT FOR RATED OUTPUT............................................................... 1.0 milliwatt maximum

POWER OUTPUT @ 1 dB COMPRESSION .......................................... 900 watts, 100 kHz – 100 MHz

900-400 watts, 100 MHz – 250 MHz

(derating slop of 3.33 watts/MHz)

FREQUENCY RESPONSE...................................................................... 100 kHz - 250 MHz instantaneously

GAIN (at maximum setting) ..................................................................... 61 dB minimum

FLATNESS............................................................................................... ± 3.5 dB maximum

± 0.8 dB with internal leveling

GAIN ADJUSTMENT (continuous range)............................................... 20 dB minimum

INPUT IMPEDANCE.............................................................................. 50 ohms, VSWR 1.5:1 maximum

OUTPUT IMPEDANCE.......................................................................... 50 ohms, VSWR 2.5:1 maximum

MISMATCH TOLERANCE......................................................................100% rated power without foldback up to 6.0:1 mismatch above which may

limit to 600 watts reflected power, from 100 kHz to 100 MHz. Limited to 250

watts reflected power from 100 MHz to 250 MHz.

MODULATION CAPABILITY................................................................. Will faithfully reproduce AM, FM or Pulse modulation appearing on the

input signal.

HARMONIC DISTORTION.....................................................................Minus 20 dBc maximum at 750 watts

THIRD ORDER INTERCEPT POINT ..................................................... 68 dBm typical

RF POWER DISPLAY ............................................................................. 0 - 2000 watts full scale

PULSE MODE GATING CHARACTERISTICS

Signal (into 50 ohms)....................................................................... + 2.0 to 6.0 VDC

Rise Time ......................................................................................... 0.5 microseconds maximum

Fall Time ......................................................................................... 0.5 microseconds

RF RISE/FALL TIME .............................................................................. 10 nanoseconds maximum

PRIMARY POWER.................................................................................. 187-264 VAC

47-63 Hz, single phase

(user must specify)

5,000 watts maximum at .95 P.F. typical

CONNECTORS

RF Input...........................................................................................See Model Configurations

RF Output ........................................................................................See Model Configurations

External Leveling Inputs..................................................................Type BNC female on front panel

Pulse Modulation Inputs..................................................................Type BNC female on front panel

Detected RF Output .........................................................................Type BNC female on front panel

Remote Control................................................................................ 24 pin female GPIB/IEEE-488 and 9-pin RS-232 connectors on rear panel

Remote Control (Fiber Optic)..........................................................ST connector. Tx and Rx RS-232.

Safety Interlock................................................................................ 15 pin female Type D on rear panel

IEEE-488 (GPIB) INTERFACE & RS-232.............................................. Allows control of all amplifier functions and monitoring of all status

indications.

COOLING ...............................................................................................Forced air (self contained fans)

WEIGHT (maximum)............................................................................... 136 kg (300 lb)

SIZE (W x H x D)..................................................................................... 56.1 x 109.2 x 88.9 cm (22.1 x 43.0 x 35.0 in)

 Alternatives to 1000A225:

• Amplifier Research 1000A250
• Amplifier Research 1200A225