HIGH POWER
AMPLIFIERS
A600 Series
200 - 300 Watts CW
1.0 GHz - 18.0 GHz
DESCRIPTION
The A600 series of high power, linear broadband microwave amplifiers provide the user with proven reliable
instrumentation for a wide variety of test and system applications. Each amplifier features regulation of the
helix, filament and grid power supplies, thus providing stable operation and long life for the TWTs.
The TWT is fully protected against power supply malfunctions such as helix overcurrent, the power supply is
designed to incorporate depressed collector TWTs as manufactured by several suppliers, allowing for wide
flexibility in meeting your needs.
Optionally, the TWTAs can be supplied with complete input and output VSWR protection.
FEATURES
• Monitors
o Collector Current Voltage
o Helix Current Meter
• Satus Indicators
o Power On
o RF Standby/On
o Faults:
Helix Overcurrent
VSWR Overload
Power Supply Thermal Overload
TWT Thermal Overload
Air Flow
• Controls
o Power On/Off
o RF Stanby/On
o Fault Reset
o Local/Remote
• Ease of Maintenance
• Designed to meet the safety requirements of IEC-348 and UL1419
• Broadband Frequency
APPLICATIONS
• EMC Susceptibility Testing
• Communications
• General Laboratory Instrumentation
• System Amplifiers
• Threat Simulation
• Antenna Patterns Testing
• High Power Component Testing
RF SPECIFICATIONS
Model Frequency Min Pwr Min Sat Max NF
200 WATTS CW
A600/L 1.0 - 2.0 200 30 35
A600/S 2.0 - 4.0 200 37 35
A600/SC 2.6 - 5.2 200 35 35
A600/EH 2.0 - 8.0 200 36 35
A600/C 4.0 - 8.0 200 40 37
A600/X 8.0 - 12.4 200 40 35
250 WATTS CW
300 WATTS CW
A600/XU 8.5 - 17.0 200 37 35
A600/J 12.4 - 18.0 200 30 35
A600/IJ 8.0 - 18.0 200 30 35
A610/LS 1.0 - 2.5 250 38 35
A610/S 2.0 - 4.0 250 38 35
A610/C 4.0 - 8.0 250 40 35
A610/X 8.0 - 12.0 250 40 35
A610/U 12.0 - 18.0 250 35 35
A610/IJ 8.0 - 18.0 250 30 35
A620/IJ 6.0 - 18.0 300 34 35
*Higher output power and gains available
Spurious:
-40 dBc (-50 dBc
available)
Spurious:
In/Out
Impedance:
In/Out VSWR:
Residual
AM/FM:
RF Connectors:
Frequency:
1.0 - 8.0
8.0 - 12.4
12.4 - 18.0
8.0 - 18.0
Location:
-40 dBc (-50 dBc
available)
50 Ohms
2.5:1 Maximum
1% maximu m (-
40dBc)
Output
Input
Type N Type N
Type N WR90
Type N WR62
Type N WRD750
Front Panel
Front
Panel
ENVIRONMENTAL
Operating
Temperature:
Relative Humidity: 95% (noncondensing)
Operating Altitude: 10,000 feet Maximum
NonOperating Temp.: -20 to 70°C
NonOperating
Altitude:
PRIME POWER
208 VAC, ±10%, Three Phase, 50/60 Hz, 2.5 kVA maximum
MECHANICAL
14" H x 17" W x 25" D
Dimensions:
Weight:
Cooling:
REMOTE OPERATION
(356mm x 432mm x 635mm) Rack
Mount
175 pounds (79.6 kg)
Internal Forced Air
Air Intake: Front Panel
Air Exhaust: Rear Panel
0 to 50°C (40°C @ 10,000
feet)
50,000 feet Maximum
Standard: Operating mode control and status monitoring via dedicated circuits.
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 40 dB Isolation, 15ns rise/fall times (1)
Option 09: Integral Input Isolator (1)
Option 10: Relay Remote
Option 10-1: IEEE-488 GPIB Remote
Option 12: RF Sample of the output (-50 dBc) (1)
Option 12: RF Sample of the output (-50 dBc) (1)
Option 13: Chassis Slides for Standard 19" Rack Mounting
Option 14: Internal Preamplifier for rated power @ less than 0 input.
Option 15: Input Attenuator; 20 dB range (1)
Option 18: RF Input/Output Connectors on the Rear Panel
Other options available (2)
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
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