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The Model 250TR1G2z5 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.
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POWER (fundamental), CW @ OUTPUT FLANGE
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Nominal: 300 watts
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Minimum: 250 watts
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FLATNESS: ±12 dB maximum
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FREQUENCY RESPONSE: 1-2.5 GHz instantaneously
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INPUT FOR RATED OUTPUT: 1.0 milliwatt maximum
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GAIN (at maximum setting): 53 dB minimum
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GAIN ADJUSTMENT (continuous range): 35 dB minimum
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INPUT IMPEDANCE: 50 ohms, VSWR 2.0:1 maximum
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OUTPUT IMPEDANCE: 50 ohms, VSWR 2.5:1 typical
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MISMATCH TOLERANCE: Output power fold back 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.
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MODULATION CAPABILITY: Will faithfully reproduce AM, FM, or pulse modulation appearing on the input signal. AM peak envelope power limited to specified power.
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VIDEO PULSE CAPABILITY
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Pulse Width: 0.05 microseconds min
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Pulse Rate (PRF): 100kHz max
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RF Rise and Fall: 30 ns max (10% to 90%)
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Delay: 300 ns max from pulse input to RF 90%
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Pulse width distortion: ±30 ns max (50% points of output pulse width compared to 50% points of input pulse width)
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NOISE POWER DENSITY
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(pulse on): Minus 70 dBm/Hz (maximum), Minus 72 dBm/Hz (typical)
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(pulse off): Minus 140 dBm/Hz (typical)
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HARMONIC DISTORTION
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Below 10 GHz, minus 5 dBc max., minus 7 dBc typ.
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10-12 GHz, minus 8 dBc max., minus 12 dBc typ.
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Above 12 GHz, minus 20 dBc max., minus 30 dBc typ.
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PRIMARY POWER: 190-260 VAC, 50/60 Hz single phase, 2.5 KVA maximum
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CONNECTORS
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RF input: Type N female on rear panel
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RF output: Type WRD –750D24 waveguide flange on rear panel
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RF output sample port: Type N female on rear panel
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GPIB: IEEE-488 (f) on rear panel
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Interlock: DB-15 (f) on rear panel
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Video: BNC-female on rear panel
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COOLING: Forced air (self contained fans), air entry and exit in rear.
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SIZE AND WEIGHT: See Model Configurations
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