GPS signals components and characteristics as described in Rinex Format Definition Document14
| GNSS System | Freq. Band /Frequency | Channel or Code | Observation Codes Pseu Range | Carrier Phase | Doppler | Signal Strength |
|---|---|---|---|---|---|---|
| GPS | L1/1575.42 | C/A | C1C | L1C | D1C | S1C |
| L1C(D) | C1S | L1S | D1S | S1S | ||
| L1C(P) | C1L | L1L | D1L | S1L | ||
| L1C(D+P) | C1X | L1X | D1X | S1X | ||
| P(AS off) | C1P | L1P | DIP | S1P | ||
| Z-tracking and similar (AS on) | C1W | L1W | D1W | S1W | ||
| Y | C1Y | L1Y | D1Y | S1Y | ||
| M | C1M | L1M | D1M | S1M | ||
| Codeless | L1N | D1N | S1N | |||
| L2/1227.60 | C/A | C2C | L2C | D2C | S2C | |
| L1(C/A)+(P2-P1)(semi-codeless) | C2D | L2D | D2D | S2D | ||
| L2C(M) | C2S | L2S | D2S | S2S | ||
| L2C(L) | C2L | L2L | D2L | S2L | ||
| L2C(M+L) | C2X | L2X | D2X | S2X | ||
| P(AS off) | C2P | L2P | D2P | S2P | ||
| Z-tracking and similar (AS on) | C2W | L2W | D2W | S2W | ||
| Y | C2Y | L2Y | D2Y | S2Y | ||
| M | C2M | L2M | D2M | S2M | ||
| Codeless | L2N | D2N | S2N | |||
| L5/1176.45 | I | C5I | L5I | D5I | S5I | |
| Q | C5Q | L5Q | D5Q | S5Q | ||
| I+Q | C5X | L5X | D5X | S5X |