Amplifier Research 125S1G4 The Amplifier Research 125S1G4 is a portable, self-contained, air-cooled, broadband, and completely solid-state ampifier designed for applications that require instantaneous bandwidth, high gain, and linearity. Its push-pull circuitry is utilized in all power stages lowering distortion and improving stability.Features and Specifications of the Amplifier Research 125S1G4 Amplifier include:

Features:

• Provides a minimum of 125 watts of RF power when used with a sweep generator
• Digital Control Panel (DCP):
• Provides both local and remote control of the amplifier
• Uses a digital display:
• Provides operational presentation of Forward Power and Reflected Power
• Provides control status
• Provides reports of internal amplifier status
• Uses menu assigned softkeys
• Uses a single rotary knob
• Uses four dedicated switches: POWER, STANDBY, OPERATE, and FAULT/RESET
• Offers extensive control and status reporting capability
• Gain control and RF output level protection
• All control functions and status indications are available remotely in GPIB/IEEE-488 format, RS-232 hardwire and fiber optic, USB, and Ethernet
• Bus interface connector on back panel
• Keylock on front panel assures positive control of local or remote operation 
• Low level of spurious signals and linearity make it ideal for these various uses:
• A driver amplifier in testing wireless and communication components and subsystems
• A test instrument covering multiple frequency bands
• For communication technologies including CDMA, W-CDMA, TDMA, GSM, etc.
• For EMC Test applications where undistorted modulation envelopes are needed

Specifications:

• Rated power output:  125 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:  120 watts
• Minimum:  100 watts
• Flatness: 
• Typical:  ±1.5 dB
• Maximum:  ±2.0 dB
• Frequency response:  0.7 – 4.2 GHz instantaneously
• Gain (at 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:  0-200 watts
• 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
• Third order intercept point:  60 dBm typical
• Harmonic distortion:  Minus 20 dBc maximum at 115 watts
• Spurious:  Minus 73 dBc typical
• Phase Linearity:  ±1.0 deg/100 MHz, typical
• Primary power (selected automatically):  
• 90-132, 180-264 VAC
• 50/60 Hz, single phase
• 900 watts maximum
• Connectors:
• RF:  Type N female
• Remote interfaces:
• IEEE-488:  24 pin 
• RS-232:  9 pin Subminiature D
• 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)

Provides a minimum of 125 watts of RF power when used with a sweep generator

Digital Control Panel (DCP):

• Provides both local and remote control of the amplifier
• Uses a digital display:
• Provides operational presentation of Forward Power and Reflected Power
• Provides control status
• Provides reports of internal amplifier status
• Uses menu assigned softkeys
• Uses a single rotary knob
• Uses four dedicated switches: POWER, STANDBY, OPERATE, and FAULT/RESET
• Offers extensive control and status reporting capability

Gain control and RF output level protection

All control functions and status indications are available remotely in GPIB/IEEE-488 format, RS-232 hardwire and fiber optic, USB, and Ethernet

Bus interface connector on back panel

Keylock on front panel assures positive control of local or remote operation 

Low level of spurious signals and linearity make it ideal for these various uses:

• A driver amplifier in testing wireless and communication components and subsystems
• A test instrument covering multiple frequency bands
• For communication technologies including CDMA, W-CDMA, TDMA, GSM, etc.
• For EMC Test applications where undistorted modulation envelopes are needed

Provides both local and remote control of the amplifier

Uses a digital display:

• Provides operational presentation of Forward Power and Reflected Power
• Provides control status
• Provides reports of internal amplifier status

Uses menu assigned softkeys

Uses a single rotary knob

Uses four dedicated switches: POWER, STANDBY, OPERATE, and FAULT/RESET

Offers extensive control and status reporting capability

Provides operational presentation of Forward Power and Reflected Power

Provides control status

Provides reports of internal amplifier status

A driver amplifier in testing wireless and communication components and subsystems

A test instrument covering multiple frequency bands

For communication technologies including CDMA, W-CDMA, TDMA, GSM, etc.

For EMC Test applications where undistorted modulation envelopes are needed

Rated power output:  125 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:  120 watts
• Minimum:  100 watts

Flatness: 

• Typical:  ±1.5 dB
• Maximum:  ±2.0 dB

Frequency response:  0.7 – 4.2 GHz instantaneously

Gain (at 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:  0-200 watts

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

Third order intercept point:  60 dBm typical

Harmonic distortion:  Minus 20 dBc maximum at 115 watts

Spurious:  Minus 73 dBc typical

Phase Linearity:  ±1.0 deg/100 MHz, typical

Primary power (selected automatically):  

• 90-132, 180-264 VAC
• 50/60 Hz, single phase
• 900 watts maximum

Connectors:

• RF:  Type N female
• Remote interfaces:
• IEEE-488:  24 pin 
• RS-232:  9 pin Subminiature D
• 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)

Nominal:  140 watts

Minimum:  120 watts

Nominal:  120 watts

Minimum:  100 watts

Typical:  ±1.5 dB

Maximum:  ±2.0 dB

100% of rated power without foldback

Will operate without damage or oscillation with any magnitude and phase of source and load impedance

90-132, 180-264 VAC

50/60 Hz, single phase

900 watts maximum

RF:  Type N female

Remote interfaces:

• IEEE-488:  24 pin 
• RS-232:  9 pin Subminiature D
• RS-232 (fiber optic):  Type ST
• USB 2.0:  Type B
• Ethernet:  RJ-45

IEEE-488:  24 pin 

RS-232:  9 pin Subminiature D

RS-232 (fiber optic):  Type ST

USB 2.0:  Type B

Ethernet:  RJ-45

    

• Amplifier Research 125S1G4 - Datasheet (137 KB)