Atec 50W1000B User Manual
Model 50W1000B
M1 through M5
50 Watts CW
1MHz–1000MHz
The Model 50W1000B is a portable, self-contained, air-cooled, broadband, solid state amplifier designed for applications
where instantaneous bandwidth and high gain are required. Push-pull circuitry is utilized in the high power stages to
lower distortion and improve stability. The 50W1000B, when used with an RF sweep generator, will provide a minimum
of 50 watts of swept power. Included is a front panel gain control which permits the operator to conveniently set the
desired output level. The 50W1000B is protected from RF input overdrive by limiting diodes and 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 when an over temperature, power supply, or amplifier fault has occurred. The unit can be
returned to operate when the condition has been cleared. The 50W1000B includes digital control for both local and
remote control of the amplifier. This 8-bit RISC microprocessor controlled board provides both IEEE-488 (GPIB) and
asynchronous, full duplex RS-232 control of all amplifier functions.
The export classification for this equipment is EAR99. These commodities, technology or software are controlled for export
in accordance with the U.S. Export Administration Regulations. Diversion contrary to U.S. law is prohibited.
50W1000B TYPICAL POWER OUTPUT
100
LINEAR @ 3dB COMPRESSION
80
60
LINEAR @ 1dB COMPRESSION
WATTS
40
20
0
0.1
1 10 100 1000 10000
FREQUENCY (MHz)
Approved for public release by AR RF/Microwave Instrumentation 080806
160 School House Road Souderton, PA 18964-9990 • 215-723-8181 • www.arworld.us Page 1 of 2
RATED OUTPUT POWER ............................................... 50 watts minimum
INPUT FOR RATED OUTPUT .......................................... 1.0 milliwatt maximum
POWER OUTPUT @ 3dB COMPRESSION
Nominal ................................................................ 70 watts
Minimum ............................................................... 50 watts
POWER OUTPUT @ 1dB COMPRESSION
Nominal ................................................................ 55 watts
Minimum ............................................................... 40 watts
FLATNESS ..................................................................... ±1.0 dB typical
±1.5 dB maximum
FREQUENCY RESPONSE ............................................... 1-1000 MHz instantaneously
GAIN (at maximum setting) ........................................... 47 dB minimum
GAIN ADJUSTMENT (Continuous Range) ....................... 20 dB minimum (4096 steps remote)
INPUT IMPEDANCE ....................................................... 50 ohms, VSWR 2.0:1 maximum
OUTPUT IMPEDANCE ................................................... 50 ohms, nominal
MISMATCH TOLERANCE * ............................................ 100% of rated power without foldback. Will operate without damage or
* See Application Note #27
MODULATION CAPABILITY ........................................... Will faithfully reproduce AM, FM, or pulse modulation appearing on the input
HARMONIC DISTORTION ............................................. Minus 20 dBc maximum at 50 watts
THIRD ORDER INTERCEPT POINT .................................. 57 dBm typical
PRIMARY POWER (selected automatically) ....................... 90-132, 180-264 VAC
50/60 Hz, single phase
600 watts maximum
REMOTE INTERFACES ................................................... IEEE-488, RS-232
CONNECTORS
RF.......................................................................... Type N female
REMOTE CONTROL
IEEE-488 ............................................................. 24 pin female
RS-232 ............................................................... 9 pin Subminiature D (female)
REMOTE INTERLOCK .................................................... 15 Pin Subminiature D
COOLING .................................................................... Forced air (self-contained fans)
WEIGHT ....................................................................... See Model Configurations
SIZE (WxHxD)........ ........................................................ See Model Configurations
MODEL RF INPUT RF OUTPUT WEIGHT SIZE (W x H x D)
50W1000B Type N female on front panel Type N female on front panel 25.9 kg (57.0 lb) 50.3 x 20.3 x 45.7 cm
50W1000BM1 Type N female on rear panel Type N female on rear panel 25.9 kg (57.0 lb) 50.3 x 20.3 x 45.7 cm
50W1000BM2 Same as 50W1000B with enclosure removed for rack mounting 16.4 kg (36.0 lb) 48.3 x 17.8 x 46.0 cm
50W1000BM3 Same as 50W1000BM1 with enclosure removed for rack
50W1000BM4 Same as 50W1000BM2 with gain control removed 16.4 kg (36.0 lb) 48.3 x 17.8 x 46.0 cm
50W1000BM5 Type N female on front panel Type N female on rear panel 16.4 kg (36.0 lb) 48.3 x 17.8 x 46.0 cm
Enclosure removed for rack mounting
SPECIFICATIONS, MODEL 50W1000B
oscillation with any magnitude and phase of source and load impedance.
signal
MODEL CONFIGURATIONS
mounting
19.8 x 8.0 x 18.1 in
19.8 x 8.0 x 18.1 in
19.0 x 7.0 x 18.1 in
16.4 kg (36.0 lb) 48.3 x 17.8 x 46.0 cm
19.0 x 7.0 x 18.1 in
19.0 x 7.0 x 18.1 in
19.0 x 7.0 x 18.1 in
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