The Keysight 85309B is a downconverter module that extends the frequency measurement capabilities of the Keysight 8530A microwave receiver. It downconverts microwave signals to an intermediate frequency (typically 20 MHz) for precise signal analysis across an expanded frequency range. This single-input module delivers low-noise performance with exceptional channel isolation, making it ideal for network analyzer systems requiring broadband frequency coverage from DC to microwave bands.
Technical Specifications
Frequency Range
• Overall: 10 MHz to 50 GHz
• Low Frequency Band: 0.1 GHz to 1 GHz
• High Frequency Band: 0.3 GHz to 18 GHz
Signal Levels
• Input Power: +10 dBm to +30 dBm
• Output Power: -10 dBm to +10 dBm
• Gain: 0 dB
Isolation & Switching
• Channel-to-channel Isolation: 100 dB
• RF Isolation: > 80 dB
• Switching Speed: 80 dB) and exceptional channel separation (100 dB)
• Ultra-fast switching capability (< 1 µs) for dynamic measurement applications
– Compatibility & Integration
Designed specifically for the Keysight 8530A receiver platform. Operates with Keysight 85320A/B mixers to enable downconversion workflows. Available with optional rack mount kits featuring handles (5063-9221) or flush mounting (5063-9214).
