Grundig Digital Radio User Manual
Page 40
DIGITAL RADIO GUIDE
TERRESTRIAL TRANSMISSION SYSTEMS - ISDB-TSB
40
(8)
Transmission capacities
The transmission capacities of the single-segment and the triple-segment are
shown in Table 4.3 and 4.4 respectively.
Table 4.3: Information bit rates for
the single-segment transmission (Segment BW=6/14MHz)
Information Rates (kbps)
Carrier Modulation
Convolutional Code
Guard
Interval
Ratio 1/4
Guard
Interval
Ratio 1/8
Guard
Interval
Ratio 1/16
Guard
Interval
Ratio 1/32
1/2
280.85
312.06
330.42
340.43
DQPSK
2/3
374.47
416.08
440.56
453.91
3/4
421.28
468.09
495.63
510.65
QPSK
5/6
468.09
520.10
550.70
567.39
7/8
491.50
546.11
578.23
595.76
1/2
561.71
624.13
660.84
680.87
2/3
748.95
832.17
881.12
907.82
16QAM
3/4
842.57
936.19
991.26
1021.30
5/6
936.19
1040.21
1101.40
1134.78
7/8
983.00
1092.22
1156.47
1191.52
1/2
842.57
936.19
991.26
1021.30
2/3
1123.43
1248.26
1321.68
1361.74
64QAM
3/4
1263.86
1404.29
1486.90
1531.95
5/6
1404.29
1560.32
1652.11
1702.17
7/8
1474.50
1638.34
1734.71
1787.28
Table 4.4: Information bit rates for the triple-segment transmission*
5
Information Rates (kbps)
Carrier Modulation
Convolutional Code
Guard
Interval Ratio
1/4
Guard
Interval Ratio
1/8
Guard
Interval Ratio
1/16
Guard
Interval Ratio
1/32
1/2
0.842
0.936
0.991
1.021
DQPSK
2/3
1.123
1.248
1.321
1.361
3/4
1.263
1.404
1.486
1.531
QPSK
5/6
1.404
1.560
1.652
1.702
7/8
1.474
1.638
1.734
1.787
1/2
1.685
1.872
1.982
2.042
2/3
2.246
2.496
2.643
2.723
16QAM
3/4
2.527
2.808
2.973
3.063
5/6
2.808
3.120
3.304
3.404
7/8
2.949
3.276
3.469
3.574
1/2
2.527
2.808
2.973
3.063
2/3
3.370
3.744
3.965
4.085
64QAM
3/4
3.791
4.212
4.460
4.595
5/6
4.212
4.680
4.956
5.106
7/8
4.423
4.915
5.204
5.361
5 In the case of the triple-segment transmission, information rate can be calculated by the combination of segment
information rates.