Amplifier Research 400A400 RF Amplifier 10 kHz – 400 MHz 400W
Description
Amplifier Research 400A400 is a self-contained, air-cooled, broadband, completely solid state amplifier designed for applications where instantaneous bandwidth and high gain are required. Push-pull LDMOS circuitry is utilized in all high power stages in the interest of lowering distortion and improving stability.
The Model 400A400, when used with an RF sweep generator, will provide a minimum of 400 watts of swept power.
The Model 400A400 is equipped with a Digital Control Panel (DCP) which provides both local and remote control of the amplifier. The DCP uses a 3.75 inch diagonal graphic display, menu assigned soft keys, a single rotary knob, and four dedicated switches to offer extensive control and status reporting capability. The display provides operational presentation of Forward Power and Reflected Power plus control status and reports of internal amplifier status.
Special features include a gain control, forward RF sample port, and a reflective RF sample port for precise power measurements. All amplifier control functions and status indications are available remotely in GPIB/IEEE-488, RS-232 and USB format. The buss interface connectors are located on the back panel and positive control of local or remote operation is assured by a keylock on the front panel of the amplifier. High efficiency universal input, power factor corrected switching power supplies provides DC to all internal subassemblies.
Housed in a stylish, contemporary enclosure, the Model 400A400 provides readily available RF power for typical applications such as RF susceptibility testing, antenna and component testing, watt meter calibration, particle accelerators, plasma generation, communications and use as a driver for higher power amplifiers.
Features
- Solid state
- Broadband
- Air cooled
- High gain
- Push-pull LDMOS circuitry
- Mismatch tolerant
- Modulation capability
- RF connector – Type N
- Interface – IEEE-488, RS-232, USB and Ethernet
Specifications
|
RATED POWER OUTPUT |
400 watts, 10 kHz-250 MHz 400-350 watts, 250 MHz-400MHz (derated slope of 033w/MHz) |
|
INPUT FOR RATED OUTPUT |
1.0 milliwatt maximum |
|
POWER OUTPUT @ 3dB compression |
350 watts, 10 kHz-250 MHz 350-300 watts, 250 MHz-400MHz (derated slope of 033w/MHz) |
|
POWER OUTPUT @ 1dB compression |
275 watts, 10 kHz-250 MHz 275-225 watts, 250 MHz-400MHz (derated slope of 033w/MHz) |
|
FLATNESS |
±3.5 dB maximum |
|
FREQUENCY RESPONSE |
10 kHz-400 MHz instantaneously |
|
GAIN (at maximum setting) |
56 dB minimum |
|
GAIN ADJUSTMENT (Continuous Range) |
20 dB minimum |
|
INPUT IMPEDANCE |
50 ohms, VSWR 1.5:1 maximum |
|
OUTPUT IMPEDANCE |
50 ohms, nominal |
|
MISMATCH TOLERANCE |
100% of rated power without foldback up to 6.0:1 mismatch, above which may limit 200W reflected power. 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 |
|
HARMONIC DISTORTION |
Minus 20 dBc maximum at 250 watts |
|
THIRD ORDER INTERCEPT POINT |
65 dBm typical |
|
PRIMARY POWER (selected automatically) |
180-264 VAC 47-63 Hz, 2500 watts maximum @ 0.99 P.F. typical |
|
REMOTE INTERFACES |
IEEE-488, RS-232, USB |
|
CONNECTORS |
|
|
RF input |
Type N female on front panel |
|
RF output |
Type N female on front panel |
|
Forward Sample |
BNC female on front panel (coupling factor 60 dB typical; data supplied) |
|
Reverse Sample |
BNC female on rear (coupling factor 60 dB typical) |
|
Safety Interlock |
15 pin female Type D on rear panel |
|
REMOTE CONTROL |
|
|
IEEE-488 |
24 pin female on rear panel |
|
RS-232 |
9 pin Subminiature D on rear panel |
|
USB |
Type B female |
|
COOLING |
Forced air (self contained fans) |
|
SIZE (W x H x D) |
50.3 x 41.9 x 56.9 cm, 19.8 x 16.5 x 22 in. |
|
WEIGHT |
45.8 kg (101 lb) |
