The Model 15T4G18A is a self contained, forced air cooled, broadband traveling wave tube (TWT) microwave amplifier designed for applications where low harmonic content is required in sub-band ranges and where wide instantaneous bandwidth, high gain and moderate power output are required.
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POWER (fundamental), CW, @ OUTPUT CONNECTOR
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FLATNESS
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±9 dB maximum, 4.2 - 18 GHz
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±5dB maximum, 8.0 - 18 GHz
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FREQUENCY RESPONSE: 4.2-18 GHz instantaneously or one of three selectable sub-bands in low harmonic mode
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INPUT FOR RATED OUTPUT: 1.0 milliwatt maximum
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GAIN (at maximum setting): 41 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 foldback protection at reflected power exceeding 20 watts (10 watts in low harmonic mode). 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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NOISE POWER DENSITY
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HARMONIC DISTORTION (in user selectable sub-band at 10 watts)
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Minus 20dBc maximum,
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Minus 30dBc typical
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HARMONIC DISTORTION (full band at 15 watts)
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4.2-4.5GHz; Minus 0dBc maximum, Minus 1dBc typical
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4.5-5GHz; Minus 1dBc maximum, Minus 2dBc typical
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5-7GHz; Minus 2.5dBc maximum, Minus 4dBc typical
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7- 10 GHz; Minus 5dBc maximum, Minus 9dBc typical
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10 - 12 GHz; Minus 8dBc maximum, Minus 12dBc typical
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Above 12 GHz; Minus 20dBc maximum, Minus 30dBc typical
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PRIMARY POWER
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99-260 VAC
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50/60 Hz single phase
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600 VA maximum
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CONNECTORS
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RF input: Type N precision female on rear panel
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RF output: Type N precision female on rear panel
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RF output sample port: Type N precision female on rear panel
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GPIB: IEEE-488 (f)
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Interlock: DB-15 female on rear panel
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COOLING: Forced air (self contained fans), air entry and exit in rear.
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WEIGHT (approximate): 32 kg, 70 lbs.
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SIZE (W x H x D): 50.3 x 16.5 x 68.6 cm, 19.8 x 6.5 x 27 in.
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