FEC_inner (ATSC)
The FEC_inner is an 8-bit unsigned integer that represents the Viterbi puncture rate to be used in the
digital carrier. The applicable puncture rates are given below.
valid values| FEC_inner | Meaning |
| 0 / 0x00 | not specified |
| 1 / 0x01 | rate 5/11 coding |
| 2 / 0x02 | rate 1/2 coding |
| 4 / 0x04 | 3/5 FEC rate |
| 6 / 0x06 | 2/3 FEC rate |
| 8 / 0x08 | 3/4 FEC rate |
| 9 / 0x09 | 4/5 FEC rate |
| 10 / 0x0A | 5/6 FEC rate |
| 11 / 0x0B | 6/7 FEC rate |
| 12 / 0x0C | 7/8 FEC rate |
| 13 / 0x0D | 8/9 FEC rate |
| 255 / 0xFF | no concatenated coding |
Ref ATSC A/81, Table 9.5
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