The HP 83486A with option H12 is a dual-channel optical/electrical plug-in module for the HP 83480A series sampling oscilloscopes and digital communication analyzers. It combines a calibrated optical channel with a high-bandwidth electrical channel, enabling simultaneous waveform characterization across optical and electrical domains. Option H12 enhances time resolution for more precise signal timing measurements in high-speed communication systems.
Technical Specifications
Electrical Channel
• Bandwidth: User selectable, DC to 12.4 GHz or DC to 20 GHz (–3 dB)
• Transition time (10% to 90%): 28.2 ps at 12.4 GHz; 17.5 ps at 20 GHz
• Maximum RMS noise: 0.5 mV at 12.4 GHz; 1 mV at 20 GHz
• Scale factor: 1 mV/div to 100 mV/div (eight-division full scale)
• DC offset range: ± 500 mV
• Dynamic range: ± 400 mV relative to channel offset
• Input impedance: 50 Ω
• Connector: 3.5 mm (m)
• Input reflections: ≤ 5% for 30 ps rise time
• Maximum safe input: 16 dBm peak AC ± 2 V DC
Optical Channel
• Bandwidth: Over 2.85 GHz
• Wavelength range: 1000 nm to 1600 nm (user calibration)
• Supports single-mode and multimode signals
• Average power measurement range: –30 dBm to 0 dBm (1 µW to 1 mW)
• Factory calibrated accuracy (20 °C to 30 °C): ± 5% of reading ± 100 nW ± connector uncertainty
• User calibrated accuracy (<5 °C temp change): ± 2% of reading ± 100 nW ± power meter uncertainty
• Switchable filters and integrated power meter
– Key Features
• Two independent measurement channels in single module
• Built-in switchable filters with microwave switch for rapid compliance/characterization transitions
• Calibration options for SONET/SDH (Option 040) and Fibre Channel/Gigabit Ethernet (Option 041) reference receiver standards
• Configurable averaging: 1 to 4096 averages
• Data display: 451 × 256 points horizontal/vertical resolution
• User-selectable graticules (full grid, axes, frame, or none)
• Compatible with external optical receivers via responsivity factor entry
– Compatibility & Integration
Designed as plug-in module for HP 83480A series mainframes.
