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CDM-710G High-Speed Satellite Modem
Front Panel Operation
4. HSSI Data Rate Limit of 1 Mbps is violated with QPSK 1/2 at 1Msps, so the minimum symbol rate is
1.011270 Msps (pilot off) and 1.035920 Msps (pilot on).
Table 6-2. Symbol Rate / Data Rate Range – Short FECFrame* and 188 Byte Format
Modulation
FEC Code
QPSK
LDPC+BCH
8PSK
LDPC+BCH
16APSK
LDPC+BCH
32APSK
LDPC+BCH
* Notes:
1. DVB-S2 - Short FECFrame = 16,200 Bits.
2. For G.703 fixed Data Rates, limit maximum Symbol Rate to less than the maximum indicated in Table 6-2.
For more information on this interface, see Chapter 12. SINGLE G.703 (E3/T3/STS-1) INTERFACE
(CDI-10-1).
3. HSSI Data Rate limit of 70 Mbps may be reached before Symbol Rate limit is reached. For more
information on this interface, see Chapter 13. HSSI INTERFACE (CDI-60).
4. HSSI Data Rate Limit of 1 Mbps is violated with QPSK 1/2 at 1Msps so the minimum symbol rate is
1.178079 Msps (pilot off) and 1.203980 Msps (pilot on).
Symbol Rate
Inner
Spectral
(Msps)
Code
Efficiency
Rate
Pilot OFF
Min
Max
1/4
0.365324
1/3
0.629060
2/5
0.760928
1/2
0.848840
3/5
1.156532
2/3
1
45*
1.288400
3/4
1.420269
4/5
1.508181
5/6
1.596093
8/9
1.727961
9/10
3/5
1.725319
2/3
1.922040
3/4
2.118761
1
45*
5/6
2.381056
8/9
2.577778
9/10
2/3
2.548792
3/4
2.809662
4/5
2.983575
1
35*
5/6
3.157488
8/9
3.418357
9/10
3/4
3.493093
4/5
3.709309
5/6
1
28*
3.925526
8/9
4.249850
9/10
Data Rate (Mbps)
Pilot OFF
Min
Max
0.365324
16.439560
0.629060
28.307692
0.760928
34.241758
1.000000
38.197802
1.156532
52.043956
1.288400
57.978022
1.420269
63.912088
1.508181
67.868132
1.596093
71.824176
1.727961
77.758242
N/A
N/A
N/A
1.725319
77.639344
1.922040
86.491803
2.118761
95.344262
2.381056
107.147541
2.577778
116.000000
N/A
N/A
N/A
2.548792
89.207729
2.809662
98.338164
2.983575
104.425121
3.157488
110.512077
3.418357
119.642512
N/A
N/A
N/A
3.493093
97.806607
3.709309
103.860661
3.925526
109.914715
4.249850
118.995796
N/A
N/A
N/A
6–15
Revision 1
MN-CDM710G
Data Rate (Mbps)
Spectral
Pilot ON
Efficiency
Pilot ON
Min
Max
0.357467
0.357467
16.086022
0.615532
0.615532
27.698925
0.744564
0.744564
33.505376
0.830585
1.000000
37.376344
1.131661
1.131661
50.924731
1.260693
1.260693
56.731183
1.389725
1.389725
62.537634
1.475747
1.475747
66.408602
1.561768
1.561768
70.279570
1.690800
1.690800
76.086022
N/A
N/A
N/A
1.692033
1.692033
76.141479
1.884959
1.884959
84.823151
2.077885
2.077885
93.504823
2.335120
2.335120
105.080386
2.528046
2.528046
113.762058
N/A
N/A
N/A
2.505223
2.505223
87.682811
2.761633
2.761633
96.657170
2.932574
2.932574
102.640076
3.103514
3.103514
108.622982
3.359924
3.359924
117.597341
N/A
N/A
N/A
3.419165
3.419165
95.736626
3.630805
3.630805
101.662551
3.842446
3.842446
107.588477
4.159906
4.159906
116.477366
N/A
N/A
N/A
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