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SLM-5650A Satellite Modem
Revision 10
Appendix H
G–16
MN-SLM-5650A
Whereas the original link used 8-PSK TPC 3/4, the Carrier-in-Carrier link used QPSK VersaFEC
0.803. The savings summary is as follows:
Item
Original Link
With Carrier-in-Carrier and
VersaFEC
Savings
Hub to
Remote
Remote to
Hub
Total
Hub to
Remote
Remote to
Hub
Total
Data Rate (kbps)
2048
2048
2048
2048
Modulation
8-PSK
8-PSK
QPSK
QPSK
FEC
TPC 3/4
TPC 3/4
0.803
0.803
Occupied BW (MHZ) 1.3
1.3
2.6
1.8
1.8
1.8
Power Eq. BW (MHz) 2.2
1.0
3.2
1.1
0.5
1.6
Leased BW (MHz)
3.2
1.8
44%
Hub HPA (W)
5.0
2.0
60%
Remote HPA (W)
11.6
4.7
60%
Note: 1 dB HPA BO for QPSK, 2 dB HPA BO for 8-PSK, 1 dB Feed Loss.
Using Carrier-in-Carrier and VersaFEC reduced the leased bandwidth by almost 44% and HPA
power by 60%.
Summary of Contents for Vipersat SLM-5650A
Page 44: ...SLM 5650A Satellite Modem Revision 10 Introduction 1 16 MN SLM 5650A Notes...
Page 56: ...SLM 5650A Satellite Modem Revision 10 Specifications 2 12 MN SLM 5650A BLANK PAGE...
Page 64: ...SLM 5650A Satellite Modem Revision 10 Installation 3 8 MN SLM 5650A Notes...
Page 80: ...SLM 5650A Satellite Modem Revision 10 Rear Panel Connectors 4 16 MN SLM 5650A Notes...
Page 158: ...SLM 5650A Satellite Modem Revision 10 Front Panel Operation 7 52 MN SLM 5650A BLANK PAGE...
Page 258: ...SLM 5650A Satellite Modem Revision 10 Serial Remote Control 10 64 MN SLM 5650A BLANK PAGE...
Page 424: ...SLM 5650A Satellite Modem Revision 10 Appendix E E 102 MN SLM 5650A BLANK PAGE...
Page 515: ......
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