Tabla de contenido
Idiomas disponibles
Idiomas disponibles
CM IP-TC
CM MANAGEMENT
• Change of the output modulation between DVB-T (COFDM) and DVB-C (QAM)
• In order to switch the modulation, press
• After a short period uf upgrading the electronics, the output modulation will change
Modulación
FEC
1/2
2/3
QPSK
3/4
5/6
7/8
1/2
2/3
16 QAM
3/4
5/6
7/8
1/2
2/3
64 QAM
3/4
5/6
7/8
Intervalo de Guarda
1/4
1/8
1/16
1/32
4.976
5.529
5.855
6.032
6.635
7.373
7.806
8.043
7.465
8.294
8.782
9.048
8.294
9.216
9.758
10.053
8.709
9.676
10.246
10.556
9.953
11.059
11.709
12.064
13.271
14.745
15.612
16.086
14.929
16.588
17.564
18.096
16.588
18.431
19.516
20.107
17.418
19.353
20.491
21.112
14.929
16.588
17.564
18.096
19.906
22.118
23.419
24.128
22.394
24.882
26.346
27.144
24.882
27.647
29.273
30.160
Available bit rate [Mbps] on DVB-T for a 8MHz channel
26.126
29.029
30.737
31.668
ba da de 8
Symbol Rate (Baud, KSps)
Modulación
RS
4.000
5.000
6.000
14.745
18.431
22.118
16 QAM
188/204
18.431
23.039
27.647
32 QAM
188/204
22.118
27.647
33.176
64 QAM
188/204
25.804
32.255
38.706
128 QAM
188/204
29.490
36.863
44.235
256 QAM
188/204
Available bit rate [Mbps] on DVB-C for a 8MHz channel
• Both standards allow using
different constellations,
output channel bandwith,
different protection rate
(FEC), guard intervals and
symbol rates.
• Anyhow the higher
protection, the lower
available output bandwith
• These adjustements will
allow the correct reception in
all the distribution network.
6.960
25.656
32.071
38.485
44.899
51.313
EN
17
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