When entering “Modulator Setting” submenu, user can find below different
parameters can be set and the LCD window would show as below:
As the
B-QAM-SDI-IP-2CH-LL
(DVB-C Modulating) is with 4 carrier outputs,
“3.1”-“3.4” represent the “Carrier A”, “Carrier B”, “Carrier B”, and “Carrier D”
respectively. User can enter “3.1”/“3.2”/“3.4”/“3.4” to set the corresponding modulating
parameters. Submenus (taking “3.1” as an example) are as below:
Standard
There are three possible options provided for selecting
Standard
: J.83A (DVB-C), J.83B,
J.83C when the display shows them, user just need swift LEFT and RIGHT key to choose.
Constellation
Three different constellations: J.83A (DVB-C), J.83B, J.83C will show on the LCD
window when Constellation been entered.
J.83A (DVB-C) contains 16QAM, 32QAM, 64QAM, 128QAM, and 256QAM;
J.83B contains 64QAM, 256QAM;
J.83C contains 64QAM, 256QAM.
3.1 Output A
3.2 Output B
3.3 Output C
3.4 Output D
3.5 ASI Output
3.1 Output A
3.1.1 Standard
3.1.2 Constellation
3.1.5 RF Out Level
3.1.6 RF On
3.1.3 Symbol Rate
3.1.4 RF Frequency
SDI Encoder Modulator
User Manual
B-QAM-SDI-IP-2CH-LL
www.questtel.com