Public Regulated Service

This service transmits signals that can be utilized only by users approved by the government, with the goal of avoiding signal jamming and spoofing (the sending of false positioning signals).

These dedicated public signals do not just involve satellite positioning; they also include positioning augmentation and other information. In this way it is possible to acquire positioning augmentation and time information via QZSS alone, even when GPS signal jamming or spoofing occurs.

The dedicated public signals are concealed and encrypted according to original Japanese methods of a very high level, and strict security measures are also taken to ensure confidentiality.

After the development and outfitting of the seven-QZS constellation, in the future users approved by the government will be able to utilize dedicated public signals. In this way, they can obtain location, time, and other information on a continual basis via QZSS alone or jointly with GPS signals.