Comtech EF Data CDM-710 Installation And Operation Manual page 126

CDM-710 Broadcast Satellite Modem
Summary of Specifications
188 Byte Format
Modulation FEC Code
DVB-S2 - Short FEC Frame = 16,200 Bits
QPSK LDPC+BCH
8PSK LDPC+BCH
16APSK LDPC+BCH
32APSK LDPC+BCH
The tables are based on a 188-byte transport stream packet. When a 204-byte frame size is selected, the data rate
increases by 204/188.
Symbol Rate
Inner Spectral
(Msps)
Code Efficiency
Rate Pilot OFF
Min Max
1/4 0.365324 0.365324 16.439560 0.357467 0.357467 16.086022
1/3 0.629060 0.629060 28.307692 0.615532 0.615532 27.698925
2/5 0.760928 0.760928 34.241758 0.744564 0.744564 33.505376
1/2 0.848840 0.848840 38.197802 0.830585 0.830585 37.376344
3/5 1.156532 1.156532 52.043956 1.131661 1.131661 50.924731
1 45
2/3 1.288400 1.288400 57.978022 1.260693 1.260693 56.731183
3/4 1.420269 1.420269 63.912088 1.389725 1.389725 62.537634
4/5 1.508181 1.508181 67.868132 1.475747 1.475747 66.408602
5/6 1.596093 1.596093 71.824176 1.561768 1.561768 70.279570
8/9 1.727961 1.727961 77.758242 1.690800 1.690800 76.086022
9/10
3/5 1.725319 1.725319 77.639344 1.692033 1.692033 76.141479
2/3 1.922040 1.922040 86.491803 1.884959 1.884959 84.823151
3/4 2.118761 2.118761 95.344262 2.077885 2.077885 93.504823
1 45
5/6 2.381056 2.381056 107.147541 2.335120 2.335120 105.080386
8/9 2.577778 2.577778 116.000000 2.528046 2.528046 113.762058
9/10
2/3 2.548792 2.548792 89.207729 2.505223 2.505223 87.682811
3/4 2.809662 2.809662 98.338164 2.761633 2.761633 96.657170
4/5 2.983575 2.983575 104.425121 2.932574 2.932574 102.640076
1 35
5/6 3.157488 3.157488 110.512077 3.103514 3.103514 108.622982
8/9 3.418357 3.418357 119.642512 3.359924 3.359924 117.597341
9/10
3/4 3.493093 3.493093 97.806607 3.419165 3.419165 95.736626
4/5 3.709309 3.709309 103.860661 3.630805 3.630805 101.662551
1 28
5/6 3.925526 3.925526 109.914715 3.842446 3.842446 107.588477
8/9 4.249850 4.249850 118.995796 4.159906 4.159906 116.477366
9/10
Data Rate (Mbps)
Pilot OFF
Min Max
NA NA NA
NA NA NA
NA NA NA
NA NA NA
8–12
Revision 9
MN/CDM710.IOM
Data Rate (Mbps)
Spectral
Pilot ON
Efficiency
Pilot ON
Min
NA NA
NA NA
NA NA
NA NA
Max
NA
NA
NA
NA