Measuring SAT, TV, CATV and Optical Signals
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Using the
MENU & ?
contextual menu, it is possible to activate visualisation and select
between ECHOS/
µ
ECHOS/preECHOS/
postECHOS
and
centreECHOS
via
TYPE
.to carry
out a detailed echo analysis.
The
fourth screen
visualises the MER per carrier. This function allows the user to meas-
ure the MER value for each carrier composing the DVB-T or DVB-T2 signal:
It is possible to move the marker along the signal envelope: At the top of the screen,
the
CARRIER
field indicates the carrier number and at the bottom, the MER value of the
selected carrier is displayed.
By default the graph visualises all signal carriers which, depending on the mode, can be
2000 or 8000 for DVB-T, or 32000 for DVB-T2 signals. The marker is positioned at the
centre of the envelope by default.
Using the
MENU & ?
contextual menu, it is possible to select the number of carriers to be
displayed. It is necessary to specify from which carrier to start to plot and at which carrier
to stop. In this menu it is also possible to visualise the graph in the normal spectrum view
or in the reverse spectrum view.
Similarly to what has been described for the SAT measurements, it is also possible in the
terrestrial measurement interface to access the
CHANNEL LOGGER
and
VISUALIZE NIT
functions using the contextual menu.
Summary of Contents for MSK 130
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