The Subcarrier Traffic Information Channel (STIC) system is intended for one way transmission of relatively high-speed data using subcarriers on broadcast FM signals to mobile and fixed users. It is designed to be highly flexible, allowing for trade-offs among payload data rate, robustness, battery savings, and transmission delay. The standardized STIC system supports the original Mobile High Rate STIC encoding methods¹ as tested by the NRSC HSSC Subcommittee.

This standard defines the STIC system. It focuses on the over-the-air protocol in the lower layers of the protocol stack. Consequently, this standard generally provides information required for the signal processing at the transmit end of the system.

¹ As developed by The MITRE Corporation