The Tektronix 4 Series B MSO Mixed Signal Oscilloscope sets a new standard for performance, analysis capabilities, and overall user experience in benchtop oscilloscopes, making it the ideal tool for debugging and validating embedded systems and power converters. As a second-generation product, it features a new processing platform that delivers over twice the response speed, significantly accelerating measurements and data transfer while fully supporting remote operation and control. The series offers 4-channel (MSO44B) and 6-channel (MSO46B) FlexChannel® input models to enhance design visibility. Each FlexChannel supports one analog signal (displaying waveform, spectrum, or both views simultaneously) and can be expanded to 8 digital logic inputs using the TLP058 logic probe.

Hardware performance features analog channel bandwidths from 200 MHz to 1.5 GHz with upgrade options, full-channel real-time sampling rates up to 6.25 GS/s, standard 31.25 Mpts memory depth (upgradable to 62.5 Mpts), and waveform capture rates exceeding 500,000 waveforms per second. Features a 12-bit ADC with 16-bit resolution in high-resolution mode, paired with a 13.3-inch HD (1920×1080) optically bonded capacitive touchscreen for balanced measurement accuracy and display quality. Offers extensive trigger capabilities, including standard edge, pulse width, and logic triggers, with auxiliary trigger support for ≤300 VRMS edge triggering; Synchronized multi-channel spectrum analysis facilitates noise troubleshooting and RF measurements.

Connectivity includes USB 2.0/3.1 host, USB 2.0 device (6 total USB ports), LAN Ethernet, and HDMI interface (requires connection to a 1920×1080 resolution HD monitor). Optional advanced features include enhanced spectrum view, mask/limit testing, advanced power measurement, and three-phase electrical analysis (6-channel models only). It also supports triggering, decoding, and analysis for dozens of serial protocols including I²C, SPI, CAN, and Ethernet.