System information

S7000 Series TV Analyzer Operation Manual
47
3.1.2 DVB-C
The interface of DVB-C Channel Measurement refers to Figure 3-5. It can measure Power
level/MER/PRE-BER/POST-BER and so on.
Figure 3-5
3.1.2.1 Parameters
 CH, Show the channel number of the current channel.
 FREQ, frequency (5MHz ~1050MHz).
 BW, bandwidth (1MHz ~50MHz).
 MODE, modulation type.
When STD is J.83A and J.83C, MODE is 16QAM, 32QAM, 64QAM, 128QAM and 256QAM;
When STD is J.83B, MODE is 64QAM and 256QAM;
When STD is J.83D, MODE is 8VSB and 16VSB.
 SR, symbol rate.
When STD is J.83A, J.83B and J.83C, SR range is from 4 MS/s to 7 MS/s;
When STD is J.83D, the fixed SR is 10.762 MS/s.
 STD, standard (J.83A, J.83B, J.83C, J.83D).
3.1.2.2 Operation
 VIEW Press the key to switch the display between Power level/MER/PRE-BER/POST-BER when the
current channel type is DVB-C.
 CONS Press the key to enter Constellation diagram function directly.
 BER Press the key to enter BER function directly.
 EVS Press the key to enter EVS function directly (The key works when STD is J.83A, J.83B and J.83C.).
 SPECT Press the key to enter SEPCTRUM function directly.
 CNR Press the key to enter CNR function directly.