Analogue Tv: Measuring The Video Carrier Level - Promax TV EXPLORER HD ISDB-T Manual

USER'S MANUAL. TV EXPLORER
Satellite band - Analogue channels
Level
C/N
Satellite band - Digital channels (DVB-S/S2/DSS):
Channel Power
C/N
MER
CBER
VBER
LBER
In order to change the measurement highlighted, press the
monitor will appear cyclically all the measures available for the signal on tune.

5.14.1 Analogue TV: Measuring the Video Carrier Level

In the measurement mode of analogue signals, the TV EXPLORER
ISDB-T/T , monitor can work as an analogue indicator of level representing the signal
B
present in the input.
11/2010
HD ISDB-T/T
B
Level measurement of the currently tuned carrier.
Ratio between the modulated signal level the equivalent noise
power for a same bandwidth.
Channel power is measured assuming that power spectral
density is uniform throughout channel bandwidth.
To measure it correctly it is indispensable to define the
Channel BW.
Ratio between the modulated signal power and the equivalent
noise power for a same bandwidth.
Modulation Error Ratio. Complementary measurement of the
Noise Margin for DVB-S and DSS and Link Margin for DVB-S2.
The BER measurement (Bit error rate) for the digital signal
before error correction (BER before FEC).
(Only for DVB-S and DSS) The BER measurement (Bit error
rate) for the digital signal after error correction (BER after
Viterbi).
(Only for DVB-S2) The BER measurement (Bit error rate) for the
digital signal after error correction (BER after LDPC).
[12] key. On the
HD
Page 49