Atec Amplifier-Research-50S1G4A User Manual
Atec Equipment
060408
160 School House Road Souderton, PA 18964-9990 • 215-723-8181 • www.ar-worldwide.com
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Model 50S1G4A,
M1 through M4
50 Watts CW
0.8–4.2GHz
The Model 50S1G4A is a solid state, self-contained, air-cooled, broadband amplifier designed for applications
where instantaneous bandwidth, high gain and linearity are required. Housed in a stylish contemporary
cabinet, the unit is designed for benchtop use, but can be removed from the cabinet for immediate equipment
rack mounting.
The 50S1G4A, when used with a sweep generator, will provide a minimum of 50 watts of RF power. Included
is a front panel gain control which permits the operator to conveniently set the desired output level. The
50S1G4A is protected from RF input overdrive by an RF input leveling circuit which controls the RF input level to
the RF amplifier first stage when the RF input level is increased above 0 dBm. The RF amplifier stages are
protected from over-temperature by removing the DC voltage to them if an over-temperature condition occurs
due to cooling blockage or fan failure. There is a digital display on the front panel to indicate the operate
status and fault conditions if an over-temperature or power supply fault has occurred. The unit can be returned
to operate when the condition has been cleared. The 50S1G4A digital panel provides control of all amplifier
functions both locally and remotely via IEEE-488 (GPIB) or RS-232 interfaces.
The low level of spurious signals and linearity of the Model 50S1G4A make it ideal for use as a driver amplifier
in testing wireless and communication components and subsystems. It can be used as a test instrument
covering multiple frequency bands and is suitable for a variety of communication technologies such as CDMA,
W-CDMA, TDMA, GSM etc. It is also suitable for EMC Test applications where undistorted modulation
envelopes are desired.
50S1G4A TYPICAL PERFORMANCE
0
20
40
60
80
100
120
OUTPUT POWER (Watts)
10
20
30
40
50
60
70
3RD ORDER INTERCEPT POINT (dBm)
0
1
2
3
4
5
FREQUENCY (GHz)
LINEAR @ 1dB COMPRESSION
LINEAR @ 3dB COMPRESSION
3RD ORDER INTERCEPT POINT