Amplifier Research 400A400The Amplifier Research 400A400 RF Amplifier 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 Model 400A400, when used with an RF sweep generator, will provide a minimum of 400 watts of swept power. The AR 400A400 Amplifier is equipped with a Digital Control Panel (DCP) which provides both local and remote control of the amplifier. The DCP uses a 3.75 inch diagonal graphic display, menu assigned softkeys, a single rotary knob, and four dedicated switches 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, 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 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 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 enclosure (if not sylish, it’s at least noticable!), the Amplifier Research 400A400 Amplifier 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 AR 400A400 Amplifier include:RATED OUTPUT POWER ……………………………………….. 400 watts, 10kHz-250MHz  400-350 watts, 250MHz-400MHz (derated slope of .33W/MHz) INPUT FOR RATED OUTPUT …………………………………… 1.0 milliwatt maximum POWER OUTPUT @ 3 dB compression ……………………. 350 watts, 10kHz-250MHz  350-300 watts, 250MHz-400MHz (derated slope of .33W/MHz) POWER OUTPUT @ 1 dB compression …………………….. 275 watts, 10kHz-250MHz  275-225 watts, 250MHz-400MHz (derated slope of .33W/MHz) FLATNESS …………………………………………………………… . ± 3.5 dB maximum FREQUENCY RESPONSE ……………………………………….. 10 kHz–400 MHz instantaneously GAIN (at maximum setting) ……………………………………. 56 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, above which may limit to 200W 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 signal HARMONIC DISTORTION ……………………………………… Minus 20 dBc maximum at 250 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 CONNECTORS  RF input ……………………………………………………….. See Model Configurations  RF output ……………………………………………………… See Model Configurations  Forward Sample …………………………………………….. BNC female on front panel (coupling factor 60 dB typical; data supplied)  Reverse Sample ……………………………………………… BNC female on front panel (coupling factor 60 dB typical)  Safety Interlock ………………………………………………. 15 pin female Type D on rear panel  REMOTE CONTROL  IEEE-488 …………………………………………………… 24-pin female on rear panel  RS-232 …………………………………………………….. 9 pin female Type D on rear panel  USB …………………………………………………………. Type B female COOLING ………………………………………………………….. Forced air (self contained fans) WEIGHT, maximum ……………………………………………… 45.8 kg (101 lbs) SIZE (W x H x D) …………………………………………………… 50.3 x 41.9 x 56.9 cm (19.8 x 16.5 x 22.0 in) EXPORT CLASSIFICATION ……………………………………… EAR99      

• Amplifier Research 400A400 - Datasheet (76 Ko)