Wave Sync Watch

Sync compatible radio-controlled watches from your speaker with NTP-corrected time and live signal data.

Wave Sync Watch helps synchronize compatible radio-controlled watches when tower reception is weak or unavailable.

The app generates a precise audio signal through your device speaker. When the watch is placed directly against the speaker, some radio-controlled watches can pick up the near-field signal through their receiver coil and decode the time pattern.

This is not a long-range radio transmitter. It is a close-contact speaker-based signal tool for watches that support standard radio time protocols.

Features:

• NTP-corrected live clock
• Manual NTP sync
• Automatic protocol selection by region
• Support for WWVB, DCF77, JJY40, JJY60, MSF, and BPC
• Standard and experimental output modes
• Live envelope preview during broadcast
• Real-time transmitted-data inspector
• Physical checklist before starting transmission
• Light and dark mode