The Logimetrics A330 is a Traveling Wave Tube (TWT) amplifier engineered for RF test and system applications requiring high gain and power output across microwave frequencies. Built around a microprocessor-based control architecture, it delivers selectable operation modes, real-time digital readouts of critical parameters, and comprehensive fault detection. Full remote control is available through IEEE-488 GPIB and RS-232C serial interfaces.
Technical Specifications
Frequency Coverage: Three models span 1.0 to 18 GHz, 4 GHz to 8 GHz, and 7 to 18 GHz.
Power Output:
• 10 W minimum (7–18 GHz model)
• 20 W minimum (4–8 GHz model A330/C); 20 W rated output (+43 dBm)
• Saturated power capability exceeds rated output by more than +3 dB
Gain: Minimum 33 dB saturated gain across the A330 series.
Noise Figure: Maximum 35 dB (A330/C model).
Power Supplies: Protected helix, filament, and grid supplies with overcurrent safeguards.
Operating Environment: 0°C to 50°C (40°C at 10,000 ft maximum altitude); 95% relative humidity (non-condensing). Non-operating range: −20°C to 70°C.
Physical: 3.5 inches height.
– Key Features
• Microprocessor-controlled operation with push-button selectable modes
• LED digital display for voltages, currents, and fault status
• Full helix overcurrent protection
• Buffered RS-232C serial ports for system integration
• IEEE-488 GPIB remote control and automation
– Typical Applications
RF power amplification in laboratory test setups, system-level transmitter characterization, and signal conditioning where mid-level microwave power and high gain are required.
– Compatibility & Integration
IEEE-488 GPIB and RS-232C interfaces enable direct integration into automated test environments and instrumentation networks. Selectable operation modes accommodate diverse signal types and test protocols.

















