RF and Universal Counter / Timers Migration Guide
Application Notes
The Keysight Technologies, Inc. 53131A, 53132A, 53181A (531xxA) RF and universal frequency counters have long established the benchmark for optimal frequency and time measurements.
The 53210A, 53220A, and 53230A (53200A Series) counters offer a replacement for the 531xxA family, providing even more capabilities in the speed and accuracy that only frequency counters can provide. The 53200A Series also provides new and advanced capabilities for a broader variety of applications.