Amplifier Research 500A250C Amplifier
The Amplifier Research 500A250C is a robust air-cooled, broadband amplifier engineered for applications demanding high gain and instantaneous bandwidth. Its push-pull LDMOS circuitry is designed to reduce distortion while enhancing stability, ensuring optimal performance in diverse settings. When paired with an RF sweep generator, this amplifier consistently delivers a minimum output of 500 watts of swept power.
The unit features an advanced Digital Control Panel (DCP) that allows for both local and remote access. The DCP is equipped with a vibrant color LCD touch screen and a convenient rotary knob, providing seamless status reporting and control functionalities.
Key operational metrics displayed on the DCP include Forward Power, Reflected Power, and internal amplifier status. Notable features such as gain control, pulse input capability, and sample ports for forward and reflection RF ensure precise power measurements. Comprehensive control options are available through GPIB/IEEE-488, RS-232, RS-232 fiber optic, Ethernet, and USB connections, supported by back panel interface connectors. A dedicated front panel switch simplifies the choice between local and remote operation. The amplifier’s components are powered by high-efficiency universal input, power factor corrected switching power supplies, minimizing energy consumption while maximizing output.
This amplifier is housed in a modern, sleek enclosure, making it suitable for various applications including RF susceptibility testing, antenna and component evaluations, wattmeter calibration, particle accelerators, plasma generation, and as a driver for higher power amplifiers.
Key Specifications of the Amplifier Research 500A250C:
- Rated Output Power: 500 watts
- Input for Rated Output: 1.0 milliwatt maximum
- Power Output @ 3 dB Compression:
- Power Output @ 1 dB Compression:
- Frequency Response: 10 kHz–250 MHz instantaneously
- Gain (at maximum setting): 57 dB minimum
- Gain Adjustment (continuous range): 20 dB minimum
- Input Impedance: 50 ohms, VSWR 1.5:1 maximum
- Output Impedance: 50 ohms, nominal
- Mismatch Tolerance: 100% rated power without foldback up to 6.0:1 mismatch
- Modulation Capability: Supports AM, FM, or pulse modulation
- Harmonic Distortion: -20 dBc maximum at 350 watts
- Third Order Intercept Point: 65 dBm typical
- RF Power Display: 0–750 watts full scale
- Primary Power: 180 - 264 VAC 47–63 Hz, 2500 watts maximum @ 0.99 P.F. typical
