Televes T.0X DVBS2-COFDM CI TWIN MUX 3TP(2SAT):2CH - Manual (Page 16)

MUX DVBS2_QAM/COFDM CI Twin
16
1QAM
Mod: 256QAM
IQ: normal
Baud:6.900Mb
The available options for this menu as well as their
possible values are:
•
16QAM, 32QAM, 64QAM, 128QAM and 256QAM
for QAM modulation order.
•
The IQ parameter is the modulation format
selection ,and can be set to “normal” or
“inverted”.
•
Note: The bandwidth required depends on the
number of services present on the output
(those selected as ON or DCY, see menu of
services).
5.1.b.1 COFDM1 modulation menu
(only to the Ref. 564301)
In the following main menu you can select, for
each of the two outputs 1 or 2:
•
Modulation bandwidth 7 or 8 MHz
•
Modulation order: QPSK, 16QAM, 64QAM.
•
Guard interval GI (1/4, 1/8, 1/16, 1/32) and FEC of
the modulation (1/2, 2/3, 3/4, 5/6, 7/8).
1COFDM
8MHz 64QAM
GI:1/8
FEC:3/4
5.1.b.2 COFDM2 modulation menu
(only to the Ref. 564301)
This menu allows to select, for each of the two
outputs:
•
Cell-id parameter (cell identifier) of the COFDM
modulation.
•
Normal/Inverted mode of the COFDM output.
1COFDM
Cell_id:
0x0000
IQ: normal
Note: The bandwidth required depends on the
number of services present on the output
(those selected as ON or DCY, see menu of
services).
5.1.c Output menu
Next main menu shows the output frequency/
channel, the output level control and the output
mode selection, for each of the outputs.
SALIDA
Ch:C21
(474.00MHz)
Niv:99 Norm.
2OUTPUT
Ch:C21
(474.00MHz)
Lev:99 Norm.
SALIDA
Frec: 474.00
Nivel: 99
Salida:Norm.
2OUTPUT
Freq: 474.00
Level: 99
Output:Norm.
To change a parameter press the key until the
desired parameter flashes. Then the value of this
field can be changed by means of the keys and
.
The output frequency ranges from 46 to 862 MHz.
The output level control permits values within a
scale from 00 up to 99.
Choices for output mode are the following:
•
Norm Standard output mode.
•
CW Continuous wave mode. It is generated a
carrier on the selected frequency.
•
OFF No output is generated.
•
NULL It is generated a modulation with null
packets.