Atec A350-IJ User Manual

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