MEDIUM POWER
AMPLIFIERS
A350 SERIES
50 WATTS CW
DESCRIPTION
The A350 series of medium power microporcessor based instrumentation and
subsystem amplifiers provide the user with proven reliable instrumentation for a
wide variety of test and system applications.
The operating modes are selectable via front panel push button controls and the
operating mode is displayed on a one line, 16 character, LED digital display.
Additionally, salient power supply voltages, currents, and fault indicators can be
displayed.
Each amplifier can be remote controlled via the standard IEEE-48 GPIB.
Each amplifier features complete regulation of the h elix, filament and grid power
supplie s, thus providing stable operation and long life for the TWTs. The TWT is
fully protected against power supply malfunctions such as helix overcurrent.
2.0 GHz - 18.0 GHz
Optionally, the TWTAs can be supplied with complete input and output VSWR
protection.
These medium power TWTAs are compact and lightweight making them ideal for
bench operation or rack mounting.
FEATURES
• Monitor-Digital Display
o Standby
o Faults
o Helix Voltage /Current
o Collector Voltage
• Mode-Digital Display
o Power On/Off
o RF On
• Controls
o Power On
o Power Off
o RF On
o RF Off
o Local Select
• Ease of Maintenance
• Designed to meet the safety requirements of IEC-348 and UL1419
• Broadband Frequency
• C.E. Certified
APPLICATIONS
• EMC Susceptibility Testing
• Communications
• General Laboratory Instrumentation
• System Preamplifiers
• Threat Simulation
• Antenna Patterns Testing
• Component Testing
RF SPECIFICATIONS
Model
Number
A350 SERIES
A350/S 2.0 - 4.0 50 34 35
A350/EH 2.0 - 8.0 50 30 35
A350/C 4.0 - 8.0 50 40 35
A350/IJ 8.0 - 18. 0 50 35 35
A350/IJX 6.0 - 18.0 40 35 35
Spurious: -40 dBc (-50 dBc available)
In/Out Impedance: 50 Ohms
In/Out VSWR: 2.5:1 Maximum
Residual AM/FM: 1% Maximum (-40 dBc) (3)
RF Connectors :
Frequency Input Output
2.0 GHz - 18.0 GHz Type N Type N
Location: Front Panel Front Panel
ENVIRONMENTAL
Operating Temperature: 0 to 50°C (40°C @ 10,000 feet)
Relative Humidity: 95% (noncondensing)
Operating Altitude: 10,000 feet Maximum
NonOperating Temp.: -20 to 70°C
NonOperating Altitude: 50,000 feet Maximum
Frequency
Range
(GHz)
Min Pwr
Out*
(Watts)
Min Small
Signal Gain
(dB)
Max NF
(dB)
PRIME POWER
Switchable 115 or 230 VAC, ±10%, Single Phase, 50-60 Hz, 750 VA maximum.
MECHANICAL
Dimensions:
A350/C: 5.25" (133mm) H x 16.5"
(419mm) W x 22.5"
(571mm) D Rack Mount
Weight: 38 pounds (17.3 kg)
S, EH,
IJ, IJX:
5.25" (133mm) H x 16.5"
(419mm) W x 20.5"
(521mm) D Rack Mount
Cooling: Internal Forced Air
g
Air Intake: Rear Panel
Air Exhaust: Rear Panel
REMOTE OPERATION
Standard: Operating mode control and status monitoring via IEEE-488 GPIB.
OPTIONS AVAILABLE
Option 03: Reflected Power Cutoff VSWR Protection (1)
Option 04-XX: Alternate Prime Power (2)
Option 07: Input Pin diode Pulse Modulator with 40dB Isolation;
15ns rise/fall times (1)
Option 09: Integral Input Isolator (1)
Option 12: RF Sample of the output (30 dBc) (1)
Option 13: Chassis Slides for Standard 19" Rack Mounting
Option 14: Internal Preamplifier for reated power @ less than 0
input.
Option 15: Input Attenuator; 20dB range (2)
Option 18: RF Input/Output Connectors on the Rear Panel (1)
Option 30: RF Output Power displayed on Di
(1)
Panel Display (1)
Option 30R: Reflected Power Metering
Other options available (2)
ital Front Panel Display
NOTES:
(1) Option may affect rated output power and gain
(2) Consult factory for features and other functions
(3) Typically -46 dBc AM; -55 dBc FM
SOLID-STATE AMPLIFIERS
A350 SERIES
50 WATTS CW
1.0 GHz - 2.0 GHz
DESCRIPTION
The A350 series of medium power microporcessor based instrumentation and
subsystem amplifiers provide the user with proven reliable instrumentation for a
wide variety of test and system applications.
The operating modes are selectable via front panel push button controls and the
operating mode is displayed on a one line, 16 character, LED digital display.
Additionally, salient power supply voltages, currents, and fault indicators can be
displayed.
Each amplifier can be remote controlled via the standard IEEE-48 GPIB.
This am plifier u tilizes c lass A linear po wer devices that provide excellent
linearity, high gain, and wide dynamic range. High efficiency operation is
achieved by employing a unique broadband microstrip RF network and advanced
GaAs FET devices.
These solid- state amplifiers are compact and lightweight making them ideal for
bench operation or rack mounting.
The amplifier is protected for load VSWRs fr om open to short (at all phases) with
an internal isolator. Input/output VSWR is specified at 2:1 max.
FEATURES
• Monitor-Digital Display
o Standby
o Faults
• Mode-Digital Display
o Power On/Off
o RF On
• Controls
o Power On
o Power Off
o RF On
o RF Off
o Local Select
• Ease of Maintenance
• Designed to meet the safety requirements of IEC-348 and UL1419
• Broadband Frequency
• C.E. Certified
APPLICATIONS
• EMC Susceptibility Testing
• Communications
• General Laboratory Instrumentation
• System Preamplifiers
• Threat Simulation
• Antenna Patterns Testing
• Component Testing
RF SPECIFICATIONS
Model
Number
A350 SOLID-STATE SERIES - FULL RACK 5.25" HIGH
A350/L 1.0 - 2.0 50 50 10
Harmonics: -20 dBc typical @ 1 dB comp.
Spurious: >-60 dBc
In/Out Impedance: 50 Ohms
In/Out VSWR: 2.0:1 Maximum
RF Connectors :
Frequency Input Output
1.0 GHz - 2.0 GHz Type N Type N
Location: Front Panel Front Panel
ENVIRONMENTAL
Operating Temperature: 0 to 50°C (40°C @ 10,000 feet)
Relative Humidity: 95% (noncondensing)
Operating Altitude: 10,000 feet Maximum
NonOperating Temp.: -20 to 70°C
NonOperating Altitude: 50,000 feet Maximum
Frequency
Range
(GHz)
Min Pwr
Out*
(Watts)
Min Small
Signal Gain
(dB)
Max NF
(dB)
PRIME POWER
Switchable 115 or 230 VAC, ±10%, Single Phase, 50-400 Hz, 350 VA maximum.
MECHANICAL
Dimensions:
A350/L-SS: 5.25" (133mm) H x 16.5" (419mm) W x 20.5"
(521mm) D Rack Mount
Weight: 38 pounds (17.3 kg)
Cooling: Internal Forced Air
Air Intake: Rear Panel
Air Exhaust: Rear Panel
REMOTE OPERATION
Standard: Operating mode control and status monitoring via IEEE-488 GPIB.
OPTIONS AVAILABLE
g
Option 04-XX: Alternate Prime Power (2)
Option 07: Input Pin diode Pulse Modulator with 40dB Isolation;
15ns rise/fall times (1)
Option 12: RF Sample of the output (30 dBc) (1)
Option 13: Chassis Slides for Standard 19" Rack Mounting
Option 15: Input Attenuator; 20dB range (2)
Option 18: RF Input/Output Conne ctors on the Rear Panel
Option 22: Internal System Diagnosis
Option 30: RF Output Power displayed on Di
(1)
Panel Display (1)
Other options available (2)
NOTES:
(1) Option may affect rated output power and gain
(2) Consult factory for features and other functions
ital Front Panel Display
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