3GSDI

3GSDI, also known as 3G-SDI, is a broadcast standard for transmitting uncompressed digital video signals. It is part of the SMPTE (Society of Motion Picture and Television Engineers) 310M standard and is a successor to previous SDI (Serial Digital Interface) standards. 3G-SDI offers a higher data rate than its predecessors, specifically 3 Gbps (gigabits per second), which allows for the transmission of higher-resolution and higher-frame-rate video content.

This increased bandwidth is crucial for modern video production, enabling the transport of uncompressed 1080p video at 50 or 60 frames per second, as well as various other high-definition formats. 3G-SDI uses coaxial cables for signal transmission, with specific connectors like BNC being common. It maintains backward compatibility with older SDI standards, meaning 3G-SDI equipment can often accept signals from 1.5G-SDI and HD-SDI sources. The standard is widely adopted in professional broadcast studios, live event production, and post-production facilities due to its reliability and the high quality of the uncompressed video it delivers. Its robust nature and established infrastructure make it a cornerstone of professional video workflows.