系统内冗余或重复数据的度量，表明存储和潜在性能问题效率低下。
1 BEC = 0.7 SP
1 SP = 1.429 BEC
例子:
将15 向后误差校正转换为信号功率冗余：
15 BEC = 10.5 SP
| 向后误差校正 | 信号功率冗余 |
|---|---|
| 0.01 BEC | 0.007 SP |
| 0.1 BEC | 0.07 SP |
| 1 BEC | 0.7 SP |
| 2 BEC | 1.4 SP |
| 3 BEC | 2.1 SP |
| 5 BEC | 3.5 SP |
| 10 BEC | 7 SP |
| 20 BEC | 14 SP |
| 30 BEC | 21 SP |
| 40 BEC | 28 SP |
| 50 BEC | 35 SP |
| 60 BEC | 42 SP |
| 70 BEC | 49 SP |
| 80 BEC | 56 SP |
| 90 BEC | 63 SP |
| 100 BEC | 70 SP |
| 250 BEC | 175 SP |
| 500 BEC | 350 SP |
| 750 BEC | 525 SP |
| 1000 BEC | 700 SP |
| 10000 BEC | 7,000 SP |
| 100000 BEC | 70,000 SP |
规则