Newtec EL170 - Page 20

Table of Contents
User Manual for EL170/970/470 IP Satellite Modulator/
Demodulator/Modem
version 4.2
xix
SHAPING THE FUTURE OF SATELLITE COMMUNICATIONS
6.7.1 Copy a Configuartion on a Different Device ..............................................94
7 Block Diagram ..............................................................................................96
7.1 Monitoring and Control ..................................................................................96
7.2 EL 170 Modulator...........................................................................................96
7.3 EL 970 Demodulator ......................................................................................98
7.4 EL 470 Modem ...............................................................................................99
7.4.1 Modulator Functionality .............................................................................99
7.4.2 Demodulator Functionality .......................................................................100
8 Technology .................................................................................................101
8.1 Modulation Standards ..................................................................................101
8.1.1 DVB-S ......................................................................................................101
8.1.2 DVB-DSNG ..............................................................................................102
8.1.3 DVB-S2 ....................................................................................................102
8.2 Pilots in DVB-S2 ..........................................................................................106
8.2.1 What are Pilots ........................................................................................106
8.2.2 Why are pilots used in DVB-S2 ...............................................................106
8.2.3 When are Pilots Used in DVB-S2 ............................................................106
8.3 Single Channel Per Carrier (SCPC) and Multiple Channel Per Carrier
(MCPC) ..................................................................................................................107
8.3.1 Single Channel Per Carrier .....................................................................107
8.3.2 Multiple Channel Per Carrier ...................................................................107
8.4 Processing Modes .......................................................................................107
8.4.1 Processing Mode 1 – Eth (IP) -> Air(TS) .................................................110
8.4.2 Processing Mode 2 – Eth(IP)<->Air(XPE) ...............................................113
8.4.3 Processing Mode 3 - Eth(IP)<->Air(GSE) ...............................................114
8.4.4 Processing Mode 4 – Eth(ntS2BBF)<->Air(S2BBF) ................................115
9 Features ......................................................................................................116
9.1 FlexACM ......................................................................................................116
9.1.1 Introduction ..............................................................................................116
9.1.2 In-band Signalling ....................................................................................133
9.2 The Noise and Distortion Estimator (NoDE) ................................................136
9.2.1 Introduction ..............................................................................................136
9.2.2 How Does NoDE work .............................................................................136
9.3 Equalink .......................................................................................................138
9.4 Demodulator Statistics .................................................................................139
9.4.1 FEC-rate and mod ...................................................................................139
9.4.2 Frame type ..............................................................................................139