Dvb-T2 Measurement - Deviser S7200 User Manual

Part II: Settings and Measurements
6-8

DVB-T2 Measurement

The DVB-T2 (standard EN 302755) measurement's version history includes v1.1.1, v1.2.1, and v1.3.1. v1.3.1
added a "T2-Lite" profile, intended for simpler receiver implementations and very low capacity applications
such as mobile broadcasting; although it may also be used with conventional stationary receivers. T2-Lite is
a "light" version of DVB-T2 standard (T2-Base) with some complex components removed, allowing for
implementation of mobile devices with low complexity and power consumption. T2-Lite is specified in an
updated version of the DVB-T2 standard (published by ETSI in 2012 [EN 302 755 v.1.3]).
The S7200 supports the DVB-T2 signal test in EN 302 755 v1.1.1, v1.2.1 and v1.3.1. A variety of measurement
functions are available: average power, MER, CBER, VBER, constellation test, echo pattern, and L1 and PLP
information.
6-8.1 Measurement Settings
In order to demodulate 8VSB signals, the user must first set up the following parameters:
Channel type: the first step is to set the channel type to DVB-T/H in the channel plan editor (see Chapter 3
for details).
Center Frequency: the carrier center frequency
Other DVB-T2 parameters will be auto-set according to the pilot, P1 symbol, and L1 pre-signaling and post-
signaling. If the above settings are in place and a clear signal is received, the S7200 can correctly
demodulate 8VSB. Tap T2 Info to view P1 symbol and L1 pre/post-signaling info.
6-8.2 CBER and VBER
See subsection 6-7.2 above.
6-8.3 Average Power
In the Average Power interface, DVB-T2 signal power is displayed as a histogram. MER, CBER, and VBER
readings are listed in the lower-left.
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