6.1.3
Menu Options for Constellation tool
On the bottom of the screen there are four menus accessible via the function
keys.
It displays the channel / frequency where is pointing
the cursor and accesses the tuning menu.
It displays the selected transmission standard menu
and accesses the signal parameters.
It displays the Tools menu.
It displays the Advanced menu.
In the Advanced menu there are some options for the constellation configuration.
► G id
They are:
r type:
Full Grid: The grid where the constellation is displayed is a complete
grid.
Cross Grid: The grid where the constellation is displayed is made of
►
hese are divided in signalling carriers and data
carriers. This option allows selecting the range of carriers to be displayed
between the first and last.
crosses.
Start Carrier/Stop Carrier:
The transmission of any digital channel consists of about 8,000 carriers, of
which 6,817 are useful. T
6.2
LTE Ingress test
6.2.1
Description
le networks. This mobile
communication standard uses a frequency band close to the bands used by
me screen
measurements with LTE filter and without LTE filter and thus if there is any
interference it can be detected and take appropriate action to fix it.
Long Term Evolution is a new standard for mobi
television. For this reason it can cause interferences.
The LTE Ingress Test identifies this type of interferences in a television
distribution system, so that they can be compared on the sa
6-58
April 2013
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