300T2G8 Amplifier Research TWT Amplifier

Additional Features:

• Power (fundamental), CW, @ Output Connector: Nominal: 350 watts; Minimum: 300 watts
• Linear @ 1 dB Compression: 75 watts minimum
• Flatness: ±12 dB maximum, equalized for ±5 dB maximum at rated power
• Frequency Response: 2.5-7.5 GHz instantaneously
• Input For Rated Output: 1.0 milliwatt maximum
• Gain (at maximum setting): 55 dB minimum
• Gain Adjustment (continuous range): 35 dB minimum
• Input Impedance: 50 ohms, VSWR 2.0:1 maximum
• Output Impedance: 50 ohms, VSWR 2.5:1 typical
• Mismatch Tolerance: Output power foldback protection at reflected power exceeding 60 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. 
• Harmonic Distortion: Minus 3.0 dBc maximum, Minus 4.5 dBc typical
• Primary Power: 190-260 VAC, 50/60 Hz single phase, 3.0 KVA maximum 
• Cooling: Forced air (self contained fans), air entry and exit in rear

The Model 300T2G8 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 TWT provides a conservative 300 watts minimum at the amplifier output connector. Stated power specifications are at the fundamental frequency.

The 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, external video pulsing, RF output sample port, auto sleep, plus monitoring of TWT helix current, cathode voltage, collector voltage, heater current, heater voltage, baseplate temperature and cabinet temperature.