Vislink Lynx L2174 User Manual

Document: CL140072 L2174 Manual Issue 2.0 Page 23 of 26
The Table below defines the corresponding gross bit rates for DVB-T operation. This includes video, audio,
data and other transport stream data tables.
Bitrates (Mbit/s) for a DVB-T system in 8 MHz channels
Modulation
Code
Rate
Guard Interval
1/4
1/8
1/16
1/32
QPSK
1/2 4.976
5.529
5.855
6.032
2/3 6.635
7.373
7.806
8.043
3/4 7.465
8.294
8.782
9.048
5/6 8.294
9.216
9.758
10.053
7/8 8.709
9.676
10.246
10.556
16-QAM
1/2 9.953
11.059
11.709
12.064
2/3 13.271
14.745
15.612
16.086
3/4 14.929
16.588
17.564
18.096
5/6 16.588
18.431
19.516
20.107
7/8 17.418
19.353
20.491
21.112
64-QAM
1/2 14.929
16.588
17.564
18.096
2/3 19.906
22.118
23.419
24.128
3/4 22.394
24.882
26.346
27.144
5/6 24.882
27.647
29.273
30.16
7/8 26.126
29.029
30.737
31.668
10.2.2 LMS-T Operation
The following sequence defines the changes and sequence required when changing to LMS-T operation :-
Step Menu Option
Setting
1 Demodulator Æ Input Mode Demod Mode LMS-
T
2 Demodulator Æ Demod Setup Bandwidth 10 or 20MHz*
3 Demodulator Æ Demod Setup Guard
A
uto
4 Demodulator Æ Demod Setup Polarit
y
A
uto
5 Demodulator Æ Demod Setup Frequenc
y
A
sRequired
* - Auto cannot be selected in LMS-T mode
The Table below defines the corresponding gross bit rates for LMS-T operation.
Bitrates (Mbit/s) for a LMS-T system
Channels
10MHz
20MHz
Modulation Code Rate
Guard Interval
1/8
1/16
1/8
1/16
QPS
K
2/3 9.2
9.7
18.4
19.5
16QAM 2/3 18.4
19.5
36.8
39

Vislink Lynx L2174 Specifications

General

Brand	Vislink
Model	Lynx L2174
Category	Receiver
Language	English