Precision of GPS
The precision of the GPS varies according to the number of satellites from which signals are received and the conditions of the sky.
| Number of Satellites | Condition | Description |
|---|---|---|
| None | Faulty reception | The GPS cannot be utilized due to a faulty GPS receiver or antenna, or other fault or interference. |
| 2 or less | Impossible to detect vehicle position | The GPS function is normal. The satellite signals received by the GPS are too few to detect the vehicle position. |
| 3 | Vehicle position detectable in 2 dimensions | The longitude and latitude of the vehicle position can be detected (less precise than detection in three dimensions). |
| 4 or more | Vehicle position detectable in 3 dimensions (elevation displayed) | The longitude, latitude and altitude of the vehicle position can be detected (more precise than the detection in two dimensions). |