The Varian CPI VZX-6980G4 is a high-power pulsed klystron amplifier engineered for demanding industrial and scientific applications. Part of the 6900G series, this amplifier delivers stable RF amplification across a broad frequency spectrum with gain specifications between 30 to 37 dB at rated power and gain stability of ±0.25 dB/day at constant drive and temperature. The unit incorporates multi-stage depressed collector (MSDC) technology for high efficiency—klystron amplifiers in this class achieve 65% minimum efficiency. Output VSWR protection is standardized, and spurious performance reaches typically -50 dBc excluding harmonics. A high-efficiency switching power supply enables reliable operation in field and laboratory environments.
Technical Specifications
• Type: Klystron Amplifier (CPI 6900G series)
• Gain: 30–37 dB at rated power; ±0.25 dB/day stability
• Efficiency: 65% minimum (multi-stage depressed collector design)
• Spurious Output: Typically -50 dBc (excluding harmonics)
• Power Supply: High-efficiency switching design
• Dimensions: 12.25″H × 19″W × 24″D
• Weight: 195 lbs / 89 kg
– Key Features
• Output VSWR protection (standardized option)
• IEEE 488 bus remote control for ATE integration
• Stable output power and operational integrity across thermal and electrical variation
• Multi-stage depressed collector technology for efficiency optimization
– Typical Applications
• Radar systems
• Medical accelerators
• High-energy physics research
• Test and measurement
• EMC radiated immunity testing
• Satellite communications (uplink and broadcasting)
– Compatibility & Integration
Designed for integration into complex systems requiring high-reliability RF amplification. Remote control options enable automated test environments and system-level command and monitoring.
