Digital Tv: Measuring Ber; Dvb-C Signals - Promax TV EXPLORER II Manual De Instrucciones

USER'S MANUAL. TV EXPLORER II/II+

5.14.7 Digital TV: Measuring BER

The TV EXPLORER II / II+ offers three ways to measure the error rate (BER) of
digital signals depending on the type of used modulation.
To select the BER measurement mode:
1) Select digital signals Measurements Configuration pressing
2) Select by means of Signal option from CONFIGURATION menu: DVB-C for the
measurement of QAM modulated signals, DVB-T/H for the measurement of
COFDM modulated signals or DVB-S/S2 for the measurement of QPSK/8PSK
modulated signals.
3) Enter the parameters relative to the digital signal which appear in the
measurement CONFIGURATION menu, as described previously.
4) Select the option to exit from measurements CONFIGURATION menu.
5.14.7.1

DVB-C signals

Once determined the parameters of QAM signal, it will be possible to measure
BER, press the [12] key until the BER measurement display appears.
In the BER measurement mode, the monitor will show a display like the following
one:
-6
FREQ:
CH:
MPEG-2 TS
Figure 29.- DVB-C (QAM) signals BER measurement screen.
12/2013
-5 -4 -3
650.00 MHz C/N:
-3 kHz POWER:
43 MER:
» BER:
[17] key.
-2 -1
16.5 dB
66.2 dBµV
24.7 dB
3.4 E-4
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