AMPLIFIER RESEARCH 120S1G3
The Amplifier Research 120S1G3 Microwave Amplifier is a premier choice for professionals seeking a portable, self-contained, and air-cooled solution for various demanding applications. Its solid-state design ensures instant bandwidth availability, high gain, and commendable linearity, making it the go-to amplifier for extensive RF testing.
Engineered with push-pull circuitry in all high power stages, the AR 120S1G3 minimizes distortion while enhancing stability, delivering a consistent 120 watts of RF power when paired with a sweep generator.
Key Features:
- Digital Control Panel (DCP): Offers local and remote control with a digital display, menu-assigned softkeys, a user-friendly rotary knob, and four direct operation switches for POWER, STANDBY, OPERATE, and FAULT/RESET.
- Operational Insights: Real-time data on Forward Power and Reflected Power along with detailed control statuses and internal amplifier reports are presented on the DCP.
- Advanced Control Options: Features include gain control, internal/external automatic level control (ALC) with front-panel ALC threshold adjustment, pulse input capability, and RF output level protection.
- Integrated RF Detection: The internal RF detector enables self-testing and operational assessment of the amplifier's performance.
- Remote Connectivity: GPIB / IEEE-488 and RS232 formats allow for comprehensive remote access and control, with a keylock on the front panel ensuring secure operation.
This amplifier is expertly suited for use as a driver amplifier in testing wireless and communication components across multiple frequency bands. It caters to various modern communication technologies, including CDMA, W-CDMA, TDMA, and GSM, as well as EMC Test applications where precise modulation envelopes are critical.
Specifications:
- Rated Power Output: 120 watts minimum
- Input for Rated Output: 1.0 milliwatt maximum
- Power Output @ 3dB Compression: Nominal 140 watts; Minimum 120 watts
- Power Output @ 1dB Compression: Nominal 122 watts; Minimum 100 watts
- Flatness: ±1.5 dB typical; ±2.0 dB maximum; ±1.0 dB Internal Leveling
- Frequency Response: 0.8 – 3.0 GHz, instantaneously
- Gain (Maximum Setting): 51 dB minimum
- Gain Adjustment: Continuous range, 15 dB minimum (4096 steps remote)
- Input Impedance: 50 ohms, VSWR 2.0:1 maximum
- RF Power Display: 0–150 Watts
- Output Impedance: 50 ohms, nominal, VSWR 2.5:1 maximum
- Mismatch Tolerance: 100% of rated power without foldback; operates without damage under any magnitude and phase of source/load impedance.
- Modulation Capability: Faithfully reproduces AM, FM, or pulse modulation on input signal.
- Third Order Intercept: Refer to chart; points determined using two tones spaced 1 MHz apart, typical for W-CDMA systems.
- Harmonic Distortion: -20 dBc max at 100 watts
- Spurious Signals: -73 dBc Typ.
- Phase Linearity: ± 1.0 deg/100 MHz, Typ.
- Primary Power: Automatically selected; 90-132, 180-264 VAC; 50/60 Hz, single phase; 1200 watts maximum
