| Code Figure | Meaning |
|---|---|
| 0 | Normal operating data |
| 1 | No data (see Note 1) |
| 2 | Undetected (see Note 2) |
| 3 | Implausible data/outliers (see Note 3) |
| 4 | Beam overshooting |
| 5 | Beam blocking |
| 6 | Ground clutter |
| 7 | Sea clutter |
| 8 | Beam attenuation |
| 9 | Wet radome attenuation |
| 10 | Wind turbines |
| 11 | Insects/birds |
| 12 | Ships/aircrafts |
| 13-191 | Reserved |
| 192-254 |
Reserved for Local Use |
| 255 | Missing |
| Notes: (1) 'Undetected' means that the received radar signal is at or below noise level. (2) 'No data' describes that a data point is out of range or in a blanked sector. (3) 'Implausible data/outliers' refers to values that are not physically plausible. |