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Amplifiers > RF Solid State Amplifiers > 250A250A RF Amplifier 250 Watts CW 10KHz-250MHz DCP GPIB RS232 by Amplifier Research

250A250A RF Amplifier 250 Watts CW 10KHz-250MHz DCP GPIB RS232

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Product Description & Specs

The Model 250A250A is a self-contained, air-cooled, broadband, completely solid state amplifier designed for applications where instantaneous bandwidth and high gain and linearity are required. Push-pull MOSFET circuitry is utilized in all high power stages in the interest of lowering distortion and improving stability. The Model 250A250A, when used with an RF sweep generator, will provide a minimum of 250 watts of swept power.
The Model 250A250A is equipped with a Digital Control Panel (DCP) which provides both local and remote control of the amplifier. The DCP uses a 4 line vacuum flourescent 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 GP IB / IEEE-488 and RS-232 format. The buss interface connector is 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
Frequency: 10KHz to 250MHz
Power: 250 watts
Flatness: ±1.5dB max; ±.5dB with internal leveling
Input for Rated Output: 1.0mW
Gain: 54dB minimum with 25dB gain control


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