Amplifier Research 25A250A RF Amplifier 10 kHz – 250 MHz 25W
Description
Amplifier Research 25A250A amplifier is a self-contained, broadband unit designed for laboratory applications where instantaneous bandwidth, high gain and moderate power output are required. Utilization of push-pull MOSFET circuitry lowers distortion, improves stability and allows operation into any load impedance without damage.
The Model 25A250A, when used with an RF sweep generator, will provide a minimum of 25 watts of swept power.
The Model 25A250A includes a front panel control which permits the operator to conveniently set the amplifier's desired output level.
Housed in a stylish contemporary enclosure, the Model 25A250A provides readily available RF power for typical applications such as RF susceptibility testing, antenna and component testing, watt meter calibration, and use as a driver for higher power amplifiers.
The 25A250A utilizes a switching power supply with universal and auto ranging input which will automatically accept from 90 to 135 VAC or from 180 to 270 VAC at 47 to 63 Hz.
Features
- Solid state
- Broadband
- Air cooled
- High gain
- Push-pull MOSFET circuitry
- Mismatch tolerant
- Modulation capability
- RF connector – Type N
- Interface – IEEE-488, RS-232
Specifications
|
RATED POWER OUTPUT |
25 watts minimum |
|
INPUT FOR RATED OUTPUT |
1.0 milliwatt maximum |
|
POWER OUTPUT @ 3dB COMPRESSION |
|
|
Nominal |
32 watts |
|
Minimum |
25 watts |
|
POWER OUTPUT @ 1dB COMPRESSION |
|
|
Nominal |
20 watts |
|
Minimum |
15 watts |
|
FLATNESS |
±1.0 dB typical ±1.5 dB maximum |
|
FREQUENCY RESPONSE |
10 kHz-250 MHz instantaneously |
|
GAIN (at maximum setting) |
44 dB minimum |
|
GAIN ADJUSTMENT (Continuous Range) |
18 dB minimum |
|
INPUT IMPEDANCE |
50 ohms, VSWR 1.5:1 maximum |
|
OUTPUT IMPEDANCE |
50 ohms, nominal |
|
MISMATCH TOLERANCE |
100% of rated power without foldback. Will operate without damage or oscillation with any magnitude and phase of source and load impedance. |
|
MODULATION CAPABILITY |
Will faithfully reproduce AM, FM, or pulse modulation appearing on the input signal |
|
NOISE FIGURE (above 1.0 MHz) |
16 dB typical |
|
HARMONIC DISTORTION |
Minus 20 dBc maximum at 15 watts |
|
THIRD ORDER INTERCEPT POINT |
54 dBm typical |
|
PRIMARY POWER (selected automatically) |
90-135, 180-270 VAC 47 to 63 Hz, single phase 200 watts maximum |
|
CONNECTORS |
|
|
RF |
Type N female on front panel |
|
COOLING |
Forced air (self contained fans) |
|
SIZE (W x H x D) |
50.3 x 15.5 x 30.0 cm, 19.8 x 6.1 x 11.8 in. |
|
WEIGHT |
15.9 kg (35 lb) |
