AMPLIFIER RESEARCH 250T6G18
The Amplifer Research 250T6G18 is a self-contained, forced-air-cooled, broadband traveling wave tube (TWT) microwave amplifier designed for applications where instantaneous bandwidth and high gain are required. A reliable 300 watt TWT provides a conservative 250 watts minimum at the amplifier output flange. Stated power specifications are at the fundamental frequency.
The 250T6G18 amplifier's front panel digital display shows forward and reflected output plus extensive system status information accessed through a series of menus via soft keys. Status indicators include power on, warm-up, standby, operate, faults, excess reflected power warning and remote. Standard features include a built-in IEEE-488 (GPIB) interface, 0 dBm input, VSWR protection, gain control, RF output sample port, plus monitoring of TWT helix current, cathode voltage, collector voltage, external video pulsing, heater current, heater voltage, baseplate temperature and cabinet temperature.
Modular design of the power supply and RF components allow for easy access and repair. Use of a switching mode power supply results in significant weight reduction. The external video pulsing feature reduces prime power use for pulse applications.
Housed in a stylish contemporary cabinet. This unit is designed for benchtop use, but can be removed from the cabinet for rack mounting. The Model 250T6G18 provides readily available RF power for a variety of applications in Test and Measurement, (including EMC RF susceptibility testing), Industrial and University Research and Development, and Service applications.
Specifications of the 250T6G18 include:
POWER (fundamental), CW @ OUTPUT FLANGE
FLATNESS: +6 dB maximum at rated power
FREQUENCY RESPONSE: 6-18 GHz instantaneously
INPUT FOR RATED OUTPUT: 1.0 milliwatt maximum
GAIN (at maximum setting): 54 dB minimum
GAIN ADJUSTMENT (continuous range): 35 dB minimum
INPUT IMPEDANCE: 50 ohms, VSWR 2.5:1 maximum
OUTPUT IMPEDANCE: 50 ohms, VSWR 2.5:1 typical
MISMATCH TOLERANCE: Output power foldback protection at reflected power exceeding 50 watts. Will operate without damage or oscillation with any magnitude and phase of source and load impedance. May oscillate with unshielded open due to coupling to input. Should not be tested with connector off.
MODULATION CAPABILITY: Will faithfully reproduce AM, FM, or pulse modulation appearing on the input signal. AM peak envelope power limited to specified power.
VIDEO PULSE CAPABILITY
NOISE POWER DENSITY
HARMONIC DISTORTION: Minus 5 dBc max., minus 8 dBc typ.
PRIMARY POWER: 190-260 VAC, 50/60 Hz single phase, 2.0 KVA maximum
COOLING: Forced air (self-contained fans), air entry and exit in rear.
WEIGHT: 53 kg, 115 lbs
SIZE (W x H x D): 50.3 x 29.7 x 68.5 cm, 19.8 x 11.7 x 27 in
EXPORT CLASSIFICATION: ITAR
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