Wi-Wi Is Wireless Time Sync at 1 Nanosecond
6 hours ago
- #Wireless Time Sync
- #NAB 2026
- #Broadcast Technology
- Wi-Wi STAMP is a wireless time synchronization protocol from Japan's NICT, using 900 MHz band for picosecond-level sync and mm-level distance accuracy.
- Current prototypes achieve 20ps phase synchronization jitter and 30ns time sync; next-gen aims for 5ns in real-world use with a range of 0.2-5 km.
- Applications include wireless black burst sync for cameras and mm-level positioning, demonstrated with a shell game using three units tracking a cup.
- The 900 MHz band offers better indoor signal penetration than GNSS, useful where wiring is costly, highlighted in a 2024 presentation.
- Timing tech is becoming ubiquitous in broadcast with SMPTE 2110 and related protocols, noted at NAB 2026, with interest from companies like Ubiquiti.