Home >> Products >> AR-500A250C
Other Configurations Available.
Call our experienced Sales Staff.
Amplifier Research 500A250C
500Watt, CW 10kHz-225MHz RF Power Amplifier

Part NumberIncluded Options
Select Items To Quote
Catalog Description

Amplifier Research 500A250C

AR-500A250C 500Watt, CW 10kHz-225MHz RF Power Amplifier

The AR-500A250C is a self-contained, air-cooled, broadband, completely solid
state amplifier designed for applications where instantaneous bandwidth and
high gain are required. Push-pull LDMOS circuitry is utilized in all high
power stages in the interest of lowering distortion and improving stability.
The AR-500A250C, when used with an RF sweep generator, will provide a minimum
of 500 watts of swept power.

The AR-500A250C is equipped with a Digital Control Panel (DCP) which provides
both local and remote control of the amplifier. The DCP uses a color LCD touch
screen and a single rotary knob to offer status reporting and control
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, pulse input capability, forward RF
sample port, and a reflective RF sample port for precise power measurements.

All amplifier control functions and status indications are available remotely
in GPIB/IEEE-488, RS-232, RS-232 fiber optic, Ethernet and USB format. The
buss interface connectors are located on the back panel and positive control
of local or remote operation is assured by a switch on the front panel of the
amplifier. High efficiency universal input, power factor corrected switching
power supplies provides DC to all internal subassemblies.

The AR-500A250C 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.

The export classification of this equipment is EAR99.


INPUT FOR RATED OUTPUT: 1.0 milliwatt maximum
POWER OUTPUT @ 3dB compression
Nominal: 600 watts
Minimum: 500 watts
POWER OUTPUT @ 1dB compression
Nominal: 500 watts
Minimum: 350 watts
FLATNESS: 2.5dB maximum
FREQUENCY RESPONSE: 10kHz-250MHz instantaneously
GAIN (at maximum setting) : 57dB minimum
GAIN ADJUSTMENT (continuous range): 20dB 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,
above which may
limit to 250W reflected power. Will operate without damage or oscillation with
any magnitude and phase of source and load impedance.
MODULATION CAPABILITY:Will faithfully reproduce AM, FM, or pulse modulation
appearing on the input
HARMONIC DISTORTION:Minus 20dBc maximum at 350watts
RF POWER DISPLAY:0750 watts full scale
47-63Hz, 2500watts maximum @ 0.99 P.F. typical
RF input: See Model Configuration
RF output:See Model Configuration
Forward Sample: BNC female on front panel (coupling factor 60dB typical)
Reverse Sample : BNC female on front panel (coupling factor 60dB typical)
Pulse Modulation Input: BNC female on rear panel
Safety Interlock:15 pin female Type D on rear panel
IEEE-488: 24-pin female on rear panel
RS-232:9 pin female Type D on rear panel
RS-232 (Fiber optic):Type ST on rear panel
USB: Type B female on rear panel
Ethernet: RJ-45
COOLING: Forced air (self-contained fans)

The export classification of this equipment is EAR99.
LengthWidthHeightShip Wt
76.2 cm 68.58 cm 60.96 cm 81.82 kg
N/A Currently not available for sale


Need Configuration Assistance? Call our experienced Sales Staff.