Advantest R5363 Frequency counter

The Advantest R5363 is a high-speed frequency counter engineered for precision measurements across multiple parameters. It performs frequency, cycle, pulse width, and totalized count measurements with continuous operation capability - acquiring up to 14,000 data points without measurement interruption. The instrument delivers 10-digit resolution per second using a 100 ns reference clock and Advantest's proprietary Reciprocal Method, which magnifies fractional parts up to 1,000 times to achieve measurement sensitivity equivalent to a 100 ps clock.

Built-in data processing includes OK/NG decision logic, PPM display, and statistical computing functions for immediate result analysis.

Technical Specifications

• Measurement Functions: Frequency, Cycle, Pulse Width, Totalized Count


• Measurement Rate: Continuous; up to 14,000 data points without pauses


• Display: 10-digit


• Internal Clock: 100 ns reference


• Resolution: Equivalent to 100 ps clock via 1,000× magnification of fractional parts (Reciprocal Method)


• Power Supply: DC and AC drive; optional battery pack (TR15801A/B)


• Standard Interface: GPIB


• Optional Interfaces: BCD output unit (R13017), DA output unit (R13018)

Key Features

• High-resolution averaging measurement with 10-digit per-second display


• Reciprocal Method magnification extends measurement resolution 1,000 times


• Continuous measurement capability minimizes downtime


• OK/NG decision and PPM display for production testing


• Statistical computing for multi-point analysis


• Low radiation design using EMI techniques


• Active cooling fan prevents thermal drift


• Horizontal operation orientation

Typical Applications

• Electronics testing and characterization


• Component calibration verification


• Telecommunications frequency validation


• Automated test systems (via GPIB)


• Manufacturing quality assurance with statistical data logging

Compatibility & Integration The R5363 connects to test systems via standard GPIB interface. BCD and DA output units (R13017 and R13018) enable integration with legacy digital and analog control systems. Optional battery pack (TR15801A/B) supports portable or field measurement scenarios. Optimal performance requires operation in a stable, temperature-controlled environment free from vibration, moisture, and magnetic interference, with minimum 10 cm clearance around air vents.