This document specifies class codes to classify global navigation satellite system (GNSS) receivers. The class codes represent how signals transmitted from radionavigation satellites are processed.

This document applies to all types of GNSS receiver devices.

The class codes in this document are not applicable to the following items:

—     condition of radionavigation satellites;

—     radio propagation environment including multipath, masking and obstacle;

—     additional antenna of a receiver device;

—     additional application software in a receiver device.