•
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
17
CM IP-TC
CM MANAGEMENT
1/4
1/8
1/16
1/32
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
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
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
30.160
7/8
26.126
29.029
30.737
31.668
64 QAM
M odulación
FEC
Intervalo de Guarda
QPSK
16 QAM
4.000
5.000
6.000
6.960
16 QAM
188/204
14.745
18.431
22.118
25.656
32 QAM
188/204
18.431
23.039
27.647
32.071
64 QAM
188/204
22.118
27.647
33.176
38.485
128 QAM
188/204
25.804
32.255
38.706
44.899
256 QAM
188/204
29.490
36.863
44.235
51.313
ba da de 8
M odulación
RS
Symbol Rate (Baud, KSps)
•
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.
Available bit rate [Mbps] on DVB-T for a 8MHz channel
Available bit rate [Mbps] on DVB-C for a 8MHz channel
EN
