Digital Tv: Measuring Ber - Promax TV EXPLORER HD ATSC Manual De Instrucciones

USER'S MANUAL. TV EXPLORER
In addition to the power of the digital channel (67.0 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 and the deviation
frequency of the central tuning calculated by the demodulator, measurement that
indicates the adjustment in the channel tuning.
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

5.14.7 Digital TV: Measuring BER

The TV EXPLORER
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: ITU-T J.83/B for
the measurement of QAM Annex-B modulated signals, DVB-C for the
measurement of QAM Annex-A modulated signals, ATSC for the measurement of
8-VSB modulated signals or DVB-S/S2 or DSS for the measurement of
QPSK/8PSK modulated signals. Available frequency ranges are:
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.
12/2010
HD ATSC
Figure 30.- Digital channel power measurement.
HD ATSC offers three ways to measure the error rate (BER)
[17] key.
[17] key.
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