Atec 30S1G3 User Manual
160 School House Road, Souderton, PA 18964-9990 USA
Phone 215-723-8181•FAX 215-723-5688
The Model 30S1G3 is a solid state, self-contained, air-cooled, broadband amplifier designed for
MODEL 30S1G3
M1, M2, M3
30 WATTS CW
0.8 - 3.0 GHz
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 30S1G3, when used with a sweep generator, will provide a minimum of 30 watts of RF power.
Included is a front panel gain control which permits the operator to conveniently set the desired
output level. The 30S1G3 is protected from RF input o verdrive 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 a n 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 30S1G3 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 30S1G3 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.
MODEL 30S1G3
Typical Performance
60
3RD ORDER INTERCEPT POINT
LINEAR @ 3dB COMPRESSION
40
LINEAR @ 1dB COMPRESSION
20
OUTPUT POWER (Watts)
0
0 1 2 3 4
FREQUENCY (GHz)
60
40
20
3RD ORDER INTERCEPT POINT (dBm)
0
REV082202
SPECIFICATIONS
Model 30S1G3
RATED POWER OUTPUT......... 30 WATTS MINIMUM
INPUT FOR RATED OUTPUT............ 1.0 MILLIWATT
MAXIMUM
POWER OUTPUT @ 3dB COMPRESSSION
Nominal................................................................... 37 watts
Minimum ................................................................. 30 watts
POWER OUTPUT @ 1dB COMPRESSION
Nominal................................................................... 32 watts
Minimum................................................................. 25 watts
FLATNESS .................................................... ±1.5 dB typical
..................................................................... ±2.0 dB maximum
FREQUENCY RESPONSE ........................... 0.8 - 3.0 GHz
.......................................................................... instantaneously
GAIN (at maximum setting)..................... 45 dB minimum
GAIN ADJUSTMENT.........................(Continuous Range)
..........................................................................10 dB minimum
................................................................... (4096 steps remote)
INPUT IMPEDANCE ............................................. 50 ohms
..............................................................VSWR 2.0:1 maximum
OUTPUT IMPEDANCE........................ 50 ohms, nominal
MODEL CONFIGURATIONS
MODEL
NUMBER
30S1G3 Type N female on front panel Type N female on front panel 35.0 kg (77.0 lb)
30S1G3M1 Type N female on rear panel Type N female on rear panel 35.0 kg (77.0 lb)
30S1G3M2 Same as 30S1G3 with enclosure removed for rack mounting 25.6 kg (57.0 lb)
30S1G3M3 Same as 30S1G3M1 with enclosure removed for rack mounting. 25.6 kg (57.0 lb)
RF INPUT RF OUTPUT WEIGHT SIZE (W x H x D)
MISMATCH TOLERANCE
100% of rated power without foldback. Will
operate without damage or oscillation with any
magnitude and phase of source and load
impedance. (See Application Note #27)
MODULATION CAPABILITY
Will faithfully reproduce AM, FM, or pulse
Modulation appearing on the input signal
THIRD ORDER INTERCEPT
See chart. The third order intercept points for
this chart have been determined using two
tones spaced 1 MHz apart. This is typical for
W-CDMA systems. Closer tone spacing such as
60 kHz generally provides about a 1db to 3db
improvement in the IP.
HARMONIC DISTORTION..........................Minus 20 dbc
...........................................................................max at 25 watts
SPURIOUS................................................Minus 73 dbc Typ.
PHASE LINEARITY................... ±± 1.0 deg/100 MHz, Typ
PRIMARY POWER ......................(Selected Automatically)
................................................................90-132, 180-264 VAC
...............................................................50/60 Hz, single phase
...................................................................340 watts maximum
CONNECTORS
RF ............................................................ Type N female
REMOTE INTERFACES
IEEE-488.............................................24 pin male
RS-232....................9 pin Subm iniature D (male)
SAFETY INTERLOCK ................. 15 pin Subminiature D
COOLING........................ Forced air (self contained fans)
50.3 x 20.3 x 54.6 cm
19.8 x 8.0 x 21.5 in
50.3 x 20.3 x 54.6 cm
19.8 x 8.0 x 21.5 in
48.3 x 17.8 x 54.6 cm
19.0 x 7.0 x 21.5 in
48.3 x 17.8 x 54.6 cm
19.0 x 7.0 x 21.5 in
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