12
RF On
This interface is to decide whether to enable the RF (carrier A) output or not.
OFF
: to disable programs to output through carrier A.
ON
: to enable programs to output through carrier A.
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.
16QAM: Quadrature Amplitude Modulation is 16
32 QAM: Quadrature Amplitude Modulation is 32
64QAM: Quadrature Amplitude Modulation is 64
128QAM: Quadrature Amplitude Modulation is 128
256QAM: Quadrature Amplitude Modulation is 256
Setting method is just the same. When the display shows them, user just need swift LEFT and
RIGHT key to choose and repressing “ENTER” for confirm.
Symbol Rate
The symbol rate range of both J.83A (DVB-C) & J.83C is 5Msps to 9Msps and J.83B is fixed and
cannot be changed.
RF Frequency
The RF output frequency range is from 30 to 999MHz with 1K stepping. After entering the RF
RF On
Off
On
Encoder-modulator
User Manual
B-QAM-HDMI-IP-4CH
www.questtel.com
sales@questtel.com
