Amplifier Research 250W1000B - High-Performance RF Amplifier

RENT AMPLIFIER RESEARCH 250W1000B (call for availability)

The Amplifier Research 250W1000B is a cutting-edge, portable, self-contained RF amplifier that delivers robust performance in demanding applications. This air-cooled, completely solid-state amplifier is engineered to meet the needs for instantaneous bandwidth, high gain, and exceptional linearity. With advanced push-pull circuitry in all high-power stages, the 250W1000B minimizes distortion while enhancing stability. When paired with a sweep generator, this model ensures a minimum output of 250 watts of RF power.

Equipped with a state-of-the-art Digital Control Panel (DCP), the AR 250W1000B offers both local and remote control capabilities. The DCP features a digital display, menu-assigned softkeys, a single rotary knob, and four dedicated switches for easy access to critical functions (POWER, STANDBY, OPERATE, and FAULT/RESET). Operational data, including Forward Power and Reflected Power, along with comprehensive control status and internal amplifier reports, are presented clearly on the display. Special features such as gain control, internal/external automatic level control (ALC) with front panel threshold adjustment, pulse input capability, and RF output level protection optimize functionality. The integrated RF detector supports self-testing and operational verification. Safety is enhanced with DC current sensing and individual fusing for all output stages.

The amplifier supports remote operation through GPIB/IEEE-488 and RS-232 interfaces, with a host of connections available at the rear panel. A keylock on the front panel further ensures secure control between local and remote settings.

Designed with a modern, compact bench-top enclosure, the 250W1000B is ideal for a variety of RF applications, including RF susceptibility testing, antenna and component testing, watt meter calibration, and serving as a driver for frequency multipliers and higher power amplifiers. A safety interlock can be integrated through a rear panel connector for added precaution.

Specifications:

• Rated Output Power: 250 watts minimum
• Input for Rated Output: 1.0 mW Max
• Power Output @ 3dB Compression:
  • Nominal: 300 watts, Minimum: 250 watts
• Power Output @ 1dB Compression:
  • Nominal: 250 watts, Minimum: 200 watts
• Flatness: 2.0 dB maximum, 1.5 dB typical
• Frequency Response: 80-1000 MHz instantaneously
• Gain (at maximum setting): 54 dB minimum
• Gain Adjustment (Continuous Range): 18 dB minimum (4096 steps remote)
• Input Impedance: 50 ohms, VSWR 2.0:1 maximum
• Output Impedance: 50 ohms nominal
• Mismatch Tolerance: 100% of rated power without foldback; operates without damage or oscillation with any magnitude and phase of source and load impedance.
• Modulation Capability: Faithfully reproduces AM, FM, or Pulse modulation appearing on input signal.
• Harmonic Distortion: -20 dBc maximum at 200 watts, -20 dBc typical @ 250 watts
• Third Order Intercept Point: 62 dBm typical
• Noise Figure: 10 dB maximum, 8 dB typical
• Primary Power: 100-260 VAC, 40/400Hz, single phase, 1000 watts maximum
• Remote Interfaces:
  • IEEE-488 24 pin female
  • RS-232 9 pin Subminiature D (female)
  • Fiber Optic ST Conn Tx and Rx RS-232
  • USB 2.0 Type B
  • Ethernet RJ-45
• Safety Interlock: 15 pin Subminiature D
• Cooling: Forced air (self-contained fans)
• Export Classification: EAR99