The HP (Hewlett-Packard) 59401A Bus System Analyzer is a test and measurement instrument designed for analyzing digital bus systems. It's used for troubleshooting and analyzing the operation of digital systems, especially those that use bus architectures. The HP 59401A is part of HP's broader range of test equipment used in electronics and communications. Here are some general features and information about the HP 59401A: Bus Systems: Designed for analyzing digital bus systems, which could include industry-standard buses like GPIB (General Purpose Interface Bus), I2C, or custom-designed buses. Interface: Typically equipped with connectors and protocols to interface with various digital bus systems. Data Capture: Capable of capturing and analyzing data on the digital bus for troubleshooting and debugging. Compatibility: Compatible with a range of digital buses used in electronic devices and systems. Applications: Used in electronics laboratories, manufacturing, and maintenance environments for debugging and testing digital systems. Display: May include a display for visualizing captured data and analysis results.

Dual input 400 MHz / 200 Msamples/s

Functionality: Time Code Generator/Reader/Tape Search and Control Unit. (1) for use in time-indexing during data acquisition; (2) decodes incoming modulated code during data playback; (3) operates as a fully automatic tape search system.