ADInstruments S7200 Operation Manual page 165

AD INSTRUMENTS S7200 TV Signal Analyzer Operation Manual
The bit error rate after the Viterbi correction is known as VBER or post Viterbi. It
should be better than 2E-4 (2 errors in every 10000 bits of data).
In average power measurement interface, the screen display DVB-T/H signal
average power, MER, CBER and VBER. The average power use the histogram
display.
Figure 6-37 DVB-T/H Average Power Measurement
S7200 DVB-T/H constellation function has multi-type display: All carriers
constellation, only one carrier constellation, hierachical modulation constellation.
S7200 DVB-T/H function default display all carriers constellation, as the Figure
6-38 show. When user taps the soft button [CARRIER], parameter "CARRIER" can
be edit in the parameters list. User taps this parameter position, a drop-down list
let user choose carrier number. If a carrier number followed by text "DATA", it
means this carrier is used for data transmission. If a carrier number followed by
text "TPS", it means this carrier is used for TPS (Transport Parameter Signaling)
transmission. The DATA carrier constellation as the Figure 6-39 show. The TPS
carrier constellation as the Figure 6-40 show.
153