User Manual

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The ATSC TRANSMITTER is a complex piece of equipment and its setting could be a difficult task. The
multitude of parameters are arranged in six tree-like menus, starting from the six top-level menu icons. In this
way, it is simpler and more comfortable to find the desired parameter.
3.3.5 COMPOSITION OF A MENU
An example menu (the RF menu) is depicted in the figure below.
The title of the menu (RF in this example) is written at the leftmost side of the titlebar. Every menu is composed
by several items, but only four of them are shown at the same time on the display. The first item is always
“Exit...”. One of the item is selected and is shown in reverse colours. By rotating the knob to the right
(bottom), the selected item is changed and the menu is scrolled down to its last item. By rotating the knob to
the left (up), the menu is scrolled up to its first item. The scrollbar drawn on the left of the items gives an idea
about the selected item position in the menu: the position of the small tab inside the scrollbar changes depending
on the selected item, from the top to the bottom of the outer rectangle representing the bar. There are 3 types
of item in a menu, characterized by a different suffix appended to the item name:
• submenus, with leading dots ( );
• read/write parameters, with a right arrow ( ) suffix;
• read-only parameters, without any suffix.
In case of failure, the value of the failed parameter (read/write or read-only) blinks to show the malfunction,
until the alarm condition disappears. If the “Modulator no communication” alarm is present, the value of
parameters related to the modulator is indicated as “???”.
- Submenus
A submenu item is indicated by the name of the submenu and the leading dots. By clicking on a submenu (e.g.,
by clicking the knob when a submenu item is selected), a new child menu is shown, browsing the tree-like
menu from the top to the bottom. As before, this new (sub) menu is composed by several items that can be
other submenus or parameters.