Amplifier Research 250S1G4 The Amplifier Research 250S1G4 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 250S1G4 Amplifier include:

Features:

• Provides a minimum of 250 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 graphic liquid crystal 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 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 the back panel
• Local/Remote switch 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:
• As a driver amplifier in testing wireless and communication components and subsystems
• As 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 output power:  250 watts minimum
• Input for rated output:  1.0 milliwatt maximum
• Power output @ 3dB compression:
• Nominal:  280 watts
• Minimum:  240 watts
• Power output @ 1dB compression:
• Nominal:  240 watts
• Minimum:  200 watts
• Flatness: 
• Typical:  ±2.0 dB
• Maximum:  ±2.5 dB
• Frequency response:  0.8 – 4.2 GHz instantaneously
• Gain (at maximum setting):  54 dB minimum
• Gain adjustment:  15 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 225 watts
• Third order intercept point:  64 dBm typical
• RF power display:  Digital, forward and reflected
• Primary power:  
• 120-240VAC
• 50/60 Hz, single phase
• 1450 watts
• Connectors:
• RF:  Type N female on front panel
• Safety Interlock: 15 pin female subminiature D on rear panel
• Remote computer interface:  IEEE-488 (GPIB) and RS-232 connector on rear panel
• Remote computer interface (fiber optic):  ST Conn Tx and Rx RS-232
• Operate interface:  RJ-11 on rear panel
• USB 2.0:  Type B
• Ethernet:  RJ-45
• IEEE-488 (GPIB) Interface and RS-232:  Allows control and monitoring of all front panel controls except keylock position control
• Cooling:  Forced air (self contained fans)

Provides a minimum of 250 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 graphic liquid crystal 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 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 the back panel

Local/Remote switch 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:

• As a driver amplifier in testing wireless and communication components and subsystems
• As 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 graphic liquid crystal 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

As a driver amplifier in testing wireless and communication components and subsystems

As 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 output power:  250 watts minimum

Input for rated output:  1.0 milliwatt maximum

Power output @ 3dB compression:

• Nominal:  280 watts
• Minimum:  240 watts

Power output @ 1dB compression:

• Nominal:  240 watts
• Minimum:  200 watts

Flatness: 

• Typical:  ±2.0 dB
• Maximum:  ±2.5 dB

Frequency response:  0.8 – 4.2 GHz instantaneously

Gain (at maximum setting):  54 dB minimum

Gain adjustment:  15 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 225 watts

Third order intercept point:  64 dBm typical

RF power display:  Digital, forward and reflected

Primary power:  

• 120-240VAC
• 50/60 Hz, single phase
• 1450 watts

Connectors:

• RF:  Type N female on front panel
• Safety Interlock: 15 pin female subminiature D on rear panel
• Remote computer interface:  IEEE-488 (GPIB) and RS-232 connector on rear panel
• Remote computer interface (fiber optic):  ST Conn Tx and Rx RS-232
• Operate interface:  RJ-11 on rear panel
• USB 2.0:  Type B
• Ethernet:  RJ-45

IEEE-488 (GPIB) Interface and RS-232:  Allows control and monitoring of all front panel controls except keylock position control

Cooling:  Forced air (self contained fans)

Nominal:  280 watts

Minimum:  240 watts

Nominal:  240 watts

Minimum:  200 watts

Typical:  ±2.0 dB

Maximum:  ±2.5 dB

100% of rated power without foldback

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

120-240VAC

50/60 Hz, single phase

1450 watts

RF:  Type N female on front panel

Safety Interlock: 15 pin female subminiature D on rear panel

Remote computer interface:  IEEE-488 (GPIB) and RS-232 connector on rear panel

Remote computer interface (fiber optic):  ST Conn Tx and Rx RS-232

Operate interface:  RJ-11 on rear panel

USB 2.0:  Type B

Ethernet:  RJ-45

    

• Amplifier Research 250S1G4A - Datasheet (126 kB)