| Binary Input | 16-QAM | ||||
| Q | Q' | I | I' | Ampliture | Angle |
| 0 | 0 | 0 | 0 | 0.311 | -135 |
| 0 | 0 | 0 | 1 | 0.850 | -165 |
| 0 | 0 | 1 | 0 | 0.311 | -45 |
| 0 | 0 | 1 | 1 | 0.850 | -15 |
| 0 | 1 | 0 | 0 | 0.850 | -105 |
| 0 | 1 | 0 | 1 | 1.161 | -135 |
| 0 | 1 | 1 | 0 | 0.0850 | -75 |
| 0 | 1 | 1 | 1 | 1.161 | -45 |
| 1 | 0 | 0 | 0 | 0.311 | 135 |
| 1 | 0 | 0 | 1 | 0.850 | 175 |
| 1 | 0 | 1 | 0 | 0.311 | 45 |
| 1 | 0 | 1 | 1 | 0.850 | 15 |
| 1 | 1 | 0 | 0 | 0.850 | 105 |
| 1 | 1 | 0 | 1 | 1.161 | 135 |
| 1 | 1 | 1 | 0 | 0.850 | 75 |
| 1 | 1 | 1 | 1 | 1.161 | 45 |