Measuring SAT, TV, CATV and Optical Signals
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Using the
MENU
context menu, under
TYPE
, the visualisation can be activated between
ECHOS/µECHOS/preECHOS
/
postECHOS
and
centreECHOS
to perform a detailed echo
analysis.
On the
fourth measurement screen
the MER is visualised per carrier. This feature allows
you to measure the MER value for each individual carrier of the DVB-T or DVB-T2 signal:
The marker can be moved along the signal envelope: At the top of the screen in the
CAR-
RIER
field, the carrier number is displayed and at the bottom of the screen the MER value
of the selected carrier.
By default, the graphic shows all signal carriers, which can be either 2000 or 8000 for
DVB-T signals or 32,000 for DVB-T2 signals, depending on the mode. By default, the
marker is positioned in the middle of the envelope curve.
Using the
MENU
context menu the number of carriers to be displayed can be selected. At
which carrier the display should start and stop is indicated. In this menu, the graphic can
also be visualised in the normal spectrum view or in the reverse spectrum view.
Similar to the SAT measurements, it is also possible for terrestrial measurements to
access the functions
channel logger
and
NIT Visualisation
via the context menu.
16.4
Performing Analogue TV Measurements
The terrestrial measuring function also makes it possible to carry out measurements on