Digital Tv: Measuring Ber - Promax PRODIG-3 Manual Del Usaurio

On selecting the CHANNEL POWER measurement mode, the screen displays
the following information:
In addition to the power of the digital channel (55.8 dBµV in previous figure) this
also shows the tuning frequency or channel, depending on the tuning mode selected,
and the offset frequency to calculate the digital channel power.
For the power measurement of a digital channel to be correct it is essential to
have previously defined the channel bandwidth using the Channel BW option, in the
Measurements Configuration menu that appears when pressing

5.14.5 Digital TV: Measuring BER

The PRODIG-3 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-T for the
measurement of COFDM modulated signals or DVB-S for the measurement of
QPSK modulated signals. Available frequency ranges are:
DVB-T
DVB-S
Page 44
10 30 50 70
FREQ: 650.00 MHz
-3 kHz
CH: 43
MPEG-2
Figure 23.- Digital channel power measurement.
signals
(COFDM)
signals
(QPSK)
USER'S MANUAL. PRODIG-3
90 110 130
C/N: >21.3 dB
» POWER: 55.8 dBµV
MER: 19.5 dB
CBER: 5.0E-2
VBER:
5.3E-4
45 MHz to 865 MHz.
950 MHz to 2150 MHz.
[17] key.
[17] key.
03/2008