The HP 70420A is a spectrum analyzer mainframe module designed for integration into modular measurement systems, particularly the HP E5500 series Phase Noise Test Systems. It provides baseband phase noise testing with phase detectors and phase-lock loop circuitry, functioning as a four-slot MMS module. With Options 201 and 301 installed, it extends measurement capability to 26.5 GHz and incorporates advanced signal analysis features.
Technical Specifications
• Frequency Range (with Option 201): 50 kHz to 26.5 GHz
• High Frequency R Input Power: 0 dBm to +5 dBm
• Low Frequency L Input Power: +7 dBm to +10 dBm
• Architecture: Six internal modular bays (two boards or RF modules per bay); MC68000 processor with ROM; low-frequency signal routing and processing board; integrated power supply and control boards
• Form Factor: Four-slot MMS module
• Weight: Approximately 2 lbs
• Internal Connectivity: Seven unoccupied ribbon cable connectors for system configuration
– Key Features
• Phase noise measurement capability through integrated phase detectors and phase-lock loop circuitry
• Option 201 extends high-frequency input capability to 26.5 GHz
• Modular architecture supports integration of optional downconverter modules (70421A, 70422A, 70427A)
• Software-dependent operation requiring associated system software
• HP-IB interface for connection to printers and plotters
– Typical Applications
• Component within HP E5500 series Phase Noise Test Systems (E5501A through E5504B models)
• Baseband phase noise analysis in modular rack-mounted configurations
• Multi-instrument signal measurement within larger test systems
– Compatibility & Integration
• Operates within HP 70001A mainframes
• Integrates with HP 70004A display units
• Compatible with optional downconverter modules for extended measurement capability
• Requires associated system software for full functionality
