The HP/Agilent 70902A is an IF section module that processes 21.4 MHz intermediate frequency signals within the HP 70000 Modular Measurement System. It delivers detected video output to the system’s video processor and provides a 3 MHz IF output for connection to external instruments such as demodulators, digitizers, and oscilloscopes.
Technical Specifications
• Resolution Bandwidth: 10 Hz to 300 kHz
• Input Signal: 21.4 MHz from RF section or external mixer interface
• Output Signals: Detected video signal and 3 MHz IF output
• Bandwidth Adjustment: 10% incremental steps; 1, 3, 10 sequence capability
• Module Width: 1/8-width format
• System Slots: One slot in HP 70000 MMS
– Key Features
• Resolution bandwidth filters with narrow selectivity from 10 Hz to 300 kHz
• Calibrated logarithmic amplifiers for amplitude accuracy
• Log amplifier detection and video filtering circuits
• Dual-output capability: video signal to processor and 3 MHz IF to external instruments
• Expandable bandwidth performance when paired with HP 70903A IF Section (extends to 3 MHz)
• Modular System Interface Bus (MSIB) for high-speed digital control
– Typical Applications
• Spectrum analysis with selectable narrow-band resolution
• IF signal conditioning and detection
• Intermediate frequency distribution to demodulation and digitization equipment
• High-resolution signal measurement in HP 70000 systems
– Compatibility & Integration
The 70902A operates as a slave module controlled by a system master such as the HP 70900A(B) Local Oscillator. It integrates into the HP 70000 Modular Measurement System architecture via the MSIB control interface. Performance extends to 3 MHz resolution bandwidth when used with the HP 70903A IF Section.

















