Amplifier Research 900S1G4 Solid State Amplifier 0.8GHz–4.2GHz 900W
Description
Amplifier Research 900S1G4 is a portable, self-contained, air-cooled, broadband, completely solid-state amplifier designed for applications where instantaneous bandwidth, high gain and linearity are required.
The Model 900S1G4, when used with a sweep generator, will provide a minimum of 900 watts of RF power instantaneously from 0.8 to 4.2 GHz.
The Model 900S1G4 is equipped with a Digital Control Panel (DCP) which provides both local and remote control of the amplifier. The DCP uses a graphic Liquid Crystal Display, menu assigned softkeys, a single rotary knob, and a dedicated power on/off switch 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 and RF output level protection.
All amplifier control functions and status indications are available remotely in GPIB/IEEE-488 format, RS-232 hardwire and fiber optic, USB, and Ethernet. The buss interface connector is 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.
The Model 900S1G4 is designed to have low spurious signals, linearity and is extremely load tolerant which enables it to be used in many RF applications such as: RF susceptibility testing, antenna/component testing, and communication technology testing. It can be used as a test instrument covering multiple frequency bands and is suitable for a variety of communication technologies such as CDMA, W-CDMA, TDMA, GSM, UWB, WiMAX etc.
The 900S1G4 is part of AR’s Expandable Power concept, which gives the amplifier much more versatility. The 900S1G4 consists of three 350S1G4 sub-amplifiers housed in a single equipment rack with a controller.
The 900S1G4 can function as one amplifier or be separated and operate as three separate 350S1G4 amplifiers which can be used independently. The 900S1G4 can be upgraded in the future to an 1200S1G4 by simply adding one more 350S1G4 sub-amplifier, upgrading the controller and performing minor tuning.
Features
- Broadband
- Solid State
- Mismatch Tolerant
- Gain Control
- Modulation Capability
- Digital Control Panel
- Automatic Primary Power Selection
- RF Input Leveling Circuit – Overdrive Protection
- Over Temperature Protection
- Standard Remote Interfaces
Specifications
RATED POWER OUTPUT |
900 watts minimum (0.8-4.2 GHz) |
INPUT FOR RATED OUTPUT |
1.0 milliwatt maximum |
POWER OUTPUT @ 3dB COMPRESSION |
|
Nominal |
1000 watts |
Minimum |
875 watts |
POWER OUTPUT @ 1dB COMPRESSION |
|
Nominal |
850 watts |
Minimum |
725 watts |
FLATNESS |
±2.5 dB maximum |
FREQUENCY RESPONSE |
0.8-4.2 GHz instantaneously |
GAIN (at maximum setting) |
59.6 dB minimum |
GAIN ADJUSTMENT (Continuous Range) |
20 dB minimum |
INPUT IMPEDANCE |
50 ohms, VSWR 2.0:1 maximum |
OUTPUT IMPEDANCE |
50 ohms, nominal |
MISMATCH TOLERANCE |
100% of rated power without foldback. 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 900 watts |
THIRD ORDER INTERCEPT POINT |
68 dBm typical |
RF POWER DISPLAY |
Digital, forward and reflected |
PRIMARY POWER (selected automatically) |
100-240 VAC 50/60 Hz, single phase 6300 watts maximum |
CONNECTORS |
|
RF INPUT |
Type N female on front panel |
RF OUTPUT |
Type 7/8 EIA on rear |
REMOTE INTERFACES |
|
IEEE-488 |
24 pin female |
RS-232 |
9 pin Subminiature D (female) |
RS-232 (Fiber-optic) |
Type ST |
USB 2.0 |
Type B |
Ethernet |
RJ-45 |
SAFETY INTERLOCK |
15 Pin female subminiature D on rear panel |
COOLING |
Forced air (self contained fans) enters front and bottom |
SIZE (W x H x D) 2 Cabinets) |
56.1 x 173 x 82.3 cm, 22.1 x 68 x 32.4 in |
WEIGHT (approximate) |
340.2 kg (750 lbs) |