Chapter 4 - GNSS Error Sources
In Chapter 2, we introduced the concept of GNSS error sources. These are the factors that make it difficult for a GNSS receiver to calculate an exact position. In this chapter, we will look more deeply into these error sources.
Table 13: GNSS System Errors
| Contributing Source | Error Range |
| Satellite Clocks | ±2 m |
| Orbit Errors | ±2.5 m |
| Inospheric Delays | ±5 m |
| Tropospheric Delays | ±0.5 m |
| Receiver Noise | ±0.3 m |
| Multipath | ±1 m |