Raymarine Ray215e Owner's Handbook Manual page 59

4-4 Operation with Full Function Handset
Note: An MMSI number is required to operate the DSC equipment
in this radio. You can program the MMSI number yourself using the
operation described in Section 4.7.4.2 (if regulations in your country
permit MMSI number programming by the radio owner) or you can
have your authorized Raymarine dealer/distributor program the
number for you.
ALL SHIP key
Switches to the All Ships Call mode for Safety and Urgency
transmissions. Descriptions of subsequent operations appear below
in Section 4.6.18.6 Transmitting All Ships Call.
VOL UP/DOWN key
Changes the sound volume of the handset. Pressing the UP key
increases the volume, while the DOWN key causes it to decrease.
The number of segments in the VOL bar graph on the LCD display
will increase or decrease accordingly. This setting does NOT affect
the volume of the base station or external speaker.
SQ UP/DOWN (SCROLL) key
Increases or decreases the squelch sensitivity. Pressing the UP
key increases the squelch, while the DOWN key decreases it. The
number of segments in the SQ bar graph on the LCD display will
increase or decrease accordingly. This key is also used as a scroll
key for selecting menu items and other settings, as described below.
16 key
Switches between the Working or Private Channel and Channel 16
(the Priority Channel).
Note: The POWER label over this key does not pertain to the
RAY215E.
MON/TRI key
Starts the Dual-Watch monitor mode. Pressing the FUNC key
followed by the MON/TRI key initiates the Tri-Watch monitor mode.
1/MEM key
This key inputs the number 1. When an alphanumeric response is
appropriate, this key alternates between entering a 1 and a space. If
the channel number indicated on the LCD display is not currently
stored in memory, pressing the FUNC key followed by the 1/MEM
key enters that channel number into memory. If the currently indicated
channel has already been stored, pressing the FUNC key followed
by the 1/MEM key deletes that channel from memory.