Amplifier Research 25S1G6 Microwave Amplifier : The Amplifier Research 25S1G6 is a solid-state, Class A design, selfcontained, air-cooled, broadband amplifier designed for applications where instantaneous bandwidth and high gain are required. Housed in a sfylish contemporary cabinet, the unit is designed for benchtop use, but can be removed from the ca binet for immediate equipment rack mounting. The 25S1G6, when used with a sweep generator, will provide a minimum of 25 watts of RF power. Included is a front panel gain control which permits the operator to conveniently set the desired output level. The 25S1G6 is protected from RF input overdrive by an RF input leveling circuit which controls the RF input level to the RF amplifier first stage when the RF input level is increased above 0 dBm.The RF amplifier stages are protected from over-temperature by removing the DC voltage to them if an over temperature condition occurs due to cooling blockage or fan failure. There is a digital display on the front panel to indicate the operate status and fault conditions when an over-temperature or power supply fault has occurred. The unit can be returned to operate when the condition has been cleared. The 2551 G6 includes digital control for both local and indications are available remotely in GPIB/IEEE-488 format, RS-232 hardwire and fiber optic, USB, and Ethernet. The bus interface connector is located on the back panel and positive control of local or remote operation is assured by a Local/ Remote switch on the front panel of the amplifier. Functions and Specifications for the Amplifier Research 25S1G6 Microwave Amplifier Includes: SMALL SIGNAL GAIN FLATNESS: ±1.5 dB typical ±2.0 dB maximum FREQUENCY RESPONSE: 0.7–6GHz instantaneously INPUT FOR RATED OUTPUT: 1.0 milliwatt maximum GAIN (at maximum setting): 44 dB minimum GAIN ADJUSTMENT (Continuous Range): 10 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.Will operate oscillation with any magnitude and phaseof source and load impedance. MODULATION CAPABILITY: Will faithfully reproduce AM, FM, orpulse modulation appearing on the input signal HARMONIC DISTORTION: Minus 20 dBc maximum at 25 watts(1-6GHz) Minus 15 dBc typical at 25 watts (0.7-1GHz) SPURIOUS: Minus 73 dBc typical THIRD ORDER INTERCEPT POINT: 50 dBm typical NOISE FIGURE: 10 dB typical PRIMARY POWER (selected automatically): 90-132, 180-264VAC 50/60 Hz, single phase 300 watts maximum CONNECTORS: RF Type N female REMOTE INTERFACES:IEEE-488: 24 pin femaleRS-232: 9 pin Subminiature D (female)RS-232 (fiber optic): Type ST USB 2.0: Type B Ethernet: RJ-45 SAFETY INTERLOCK: 15 Pin Subminiature D COOLING: Forced air (self contained fans) EXPORT CLASSIFICATION: EAR99     

• Amplifier Research 25S1G6 - Datasheet (134 KB)