The Advantest R5362B is a dual-channel frequency counter engineered for precise frequency, period, and time interval measurements across telecommunications, electronics manufacturing, and R&D environments. Channel 1 covers 60 mHz to 3 GHz with 10 mV sensitivity and 50 Ω input impedance; Channel 2 extends from 200 Hz to 100 MHz with 1 MΩ input impedance. Both channels accept 10 mV signals with AC coupling. The instrument delivers 9-digit resolution at 1-second gate time and completes measurements in 0.08 s cycles.
– Technical Specifications
Frequency Measurement
• Channel 1: 60 mHz to 3 GHz
• Channel 2: 200 Hz to 100 MHz
• General counter range: 2 MHz to 3 GHz
• Sensitivity (both channels): 10 mV
• Input impedance: Channel 1 50 Ω, Channel 2 1 MΩ
• Maximum input voltage (Channel 1): 3 V
• Input attenuation (Channel 1): ×1, ×20
• Auto-attenuator range: 10 mVrms to 5 Vrms
Time Domain & Totalize
• Period measurement: 10 ns to 5000 s
• Positive pulse width: 200 ns to 9000 s
• Totalize function: DC to 50 MHz
Performance Metrics
• Display: 9-digit with 1-second gate
• Measurement throughput: 0.08 s
• Time base stability: 0.0000002 /yr
• External reference: 10 MHz
• Measurement method: Expanding/reciprocal system
• Noise reduction: ANS circuit with automatic sensitivity level control
– Key Features
• Dual-channel architecture with independent frequency ranges
• AC-coupled inputs on both channels
• Channel 1 provides selectable ×1 or ×20 attenuation
• Proprietary Advantest counter LSI for expanded measurement capability
• Integrated cooling fan for sustained operation
– Typical Applications
Frequency validation in RF and microwave test; period and pulse-width characterization; production-line pass/fail screening with optional TR1644 calculation unit.
– Compatibility & Integration
Optional interface units enable data output: R13001B (BCD and D/A), R13002B (GPIB and D/A). GPIB interface functions available for remote control and automated test sequences.























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