The HP/Agilent 70906B RF SECTION is a front-end converter module for the HP 70000 Modular Spectrum Analyzer mainframe, processing RF and microwave signals across a 50 kHz to 26.5 GHz frequency range. The module converts incoming signals to a 21.4 MHz intermediate frequency for analysis by downstream IF and display modules. It requires a preselector for proper operation and does not include an integrated input attenuator, making it part of a complete modular measurement system rather than a standalone unit.
Technical Specifications
• Frequency Range: 50 kHz to 26.5 GHz
• Intermediate Frequency (IF): 21.4 MHz
• Input Impedance: 50 Ohm
• First IF Output: 321.4 MHz (available for frequencies > 2.7 GHz)
• First IF Output Level: -21 dBm ± 3 dB
• First IF Output Impedance: 50 Ohm
• Local Oscillator Input Range: 3.0 to 6.6 GHz at +1.5 to +12 dBm
• LO Input Termination: 50 Ohm when not in use
• Physical Dimensions: 8 × 6 × 4 inches
• Weight: 5 lbs
– Key Features
• SMA connector for local oscillator signal input
• SMA connector for 321.4 MHz first IF output in high-band operation
• 321.4 MHz input via semi-rigid cable connection during normal operation
• SMB connector for final IF signal output to IF modules
• Multiple-pin modular system interface bus for mainframe integration
• Preselector-dependent design for optimized RF front-end performance
– Typical Applications
• High-frequency spectrum analysis from 50 kHz through 26.5 GHz
• Microwave signal characterization and measurement
• Multi-stage RF measurement systems requiring modular architecture
– Compatibility & Integration
The 70906B integrates directly into the HP 70000 Modular Spectrum Analyzer mainframe alongside IF, local oscillator, and display modules. Operation requires a preselector such as the HP 70600A or HP 70601A. The module connects via its modular system interface bus, receiving mainframe power and control signals.
