Simrad RS90 Operating Manual page 101

PTT
The Push to Talk (PTT) key enables the microphone and transmits
your voice over the selected channel. For further information, see
"PTT Key" on page 27.
OK
This key has multiple functions depending on the operation you are
doing:
•
Sets the high/low transmission power.
The Hi or Lo icon on the display changes.
•
In menus, press to confirm the selection.
▲ and ▼
Used for changing channel (see "Changing channel" on page 24);
also used for scrolling through menu options.
◄ and ►
Used for adjusting squelch; also used for moving the cursor when
entering data on a wired handset.
X - Exit
When navigating menus, use [X] to clear incorrect entries, exit from
a menu without saving changes, or go back to the previous screen.
CALL/MENU
Short press to enter the DSC CALL menu and make DSC calls. See
"Introduction to DSC" on page 45.
Long press and hold to display the main menu. See "Using the
menus" on page 28.
WX
US models
In USA and Canadian waters, short press [WX] to hear the most
recently selected weather station. For further information, see
"Receiving weather alerts (US model only)" on page 32.
For all other models
The [WX] key can be programmed to a channel of your choice. For
further information see "Favourite channel (non-US models)" on
page 33.
Appendices | RS90 Operating Manual
| 101