The Logimetrics A340A is an RF signal generator engineered to deliver stable, accurate signals across multiple frequency bands with user-adjustable frequency and amplitude controls. This full-rack instrument operates at 50 Ohms output impedance and integrates IEEE-488 GPIB control for remote operation, making it suitable for laboratory and field service RF testing and measurement applications.
Technical Specifications
• Series: A340 Series
• Form Factor: Full-rack mountable, 5.25 inches rack height
• Output Impedance: 50 Ohms
• Frequency & Power Models:
– A3401L: 1.0–2.0 GHz, 20 W (33 dBm, 35 dBm)
– A340/S: 2.0–4.0 GHz, 20 W (33 dBm, 35 dBm)
– A340/C: 4.0–8.0 GHz, 20 W (33 dBm, 35 dBm)
– A340/CJ: 4.0–4.5 GHz, 10 W (30 dBm, 35 dBm); 4.5–18.0 GHz, 10 W (30 dBm, 35 dBm)
• Control Interface: IEEE-488 GPIB (IEEE STD 488-1978 compliant: T, L, SH, and AH functions)
– Key Features
• Multiple frequency band configurations from 1.0 GHz to 18.0 GHz
• Power outputs from 10 to 20 Watts depending on model selection
• User-adjustable frequency and amplitude controls for precise signal generation
• Remote control capability via IEEE-488 GPIB interface
• Traveling Wave Tube (TWT) amplifier technology
– Typical Applications
• Noise power testing
• Power monitor calibration
• RF circuit characterization and validation
• Field service RF measurements
– Compatibility & Integration
The A340A integrates into multi-component test configurations requiring external directional RF couplers, attenuator pads, and RF milliwatt meters. RF output must be terminated with a load rated to exceed the full power output of the selected model to prevent permanent TWT damage. Always switch RF power to OFF before changing RF loads.
