Keysight 53230A, 2-ch FC1-class Frequency Counter, 15 Digits resolution 350 MHz

Tired of missing tiny frequency shifts that can ruin a test? The Keysight 53230A is a high-performance, two-channel frequency counter that gives you crystal-clear readings up to 350 MHz. Engineers, technicians, and hobbyists use it to measure signals, time intervals, and pulse widths with 15-digit resolution. If you have struggled with slow, low-accuracy counters, this instrument removes guesswork and saves you time on every measurement.

Keysight 53230A, 2-ch FC1-class Frequency Counter, 15 Digits resolution 350 MHz

Many labs need a single device that can count frequency, period, duty cycle and more without swapping equipment. Missing a function means extra hardware, extra cost, and more chance of error. The 53230A solves this by offering two analog inputs, external trigger, and a full set of measurement functions in one compact unit. Its fast 12 k measurements per second and built-in analysis let you see trends instantly, so you can act on data right away.

Key Features

• Frequency range 0 Hz to 350 MHz (expandable to 15 GHz with optional module).
• Time-interval resolution of 20 ps for ultra-fast edges.
• Measurement rate up to 12 000 readings per second.
• Internal memory stores up to 1 000 000 measurements.
• Input impedance selectable 1 M or 50 for flexible source matching.
• External trigger input for synchronized measurements.
• Frequency ratio, phase and duty-cycle calculations built in.
• Continuous measurement mode for real-time monitoring.
• Timestamping records exact time of each reading.
• Optional GPIB and LAN interfaces for automated test systems.

Specifications