Overview
Amplifier Research 50W1000B 50 Watt CW, 1 - 1000 MHz RF Power Amplifier
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-488 232 control of all amplifier functions.
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| Typical Power Output |
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| SPECIFICATIONS | |
| RATED POWER OUTPUT | 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*E | 100% of rated power without foldback up to 6.0:1 mismatch above which may limit to 250 watts reflected power. 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. |
| HARMONIC DISTORTION | Minus 20 dBc maximum at 50 watts |
| THIRD ORDER INTERCEPT POINT | 57 dBm typical |
| RF POWER METER | 600 watts full scale |
| 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 Input | 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 (approximate) | 25.9 kg (57.0 lb) |
| SIZE (W x H x D) | 50.3 x 20.3 x 45.7 cm 19.8 x 8.0 x 18.1 in |
