Raymarine Ray230 Owner's Handbook Manual page 26

3-3
Operations
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.
2/SCAN key
This key inputs the number 2. When an alphanumeric response is
appropriate, each press of this key alternately inputs the characters 2,
A, B, then C. Pressing the FUNC key followed by the 2/SCAN key
toggles Scan mode ON or OFF. Scan mode is described below in
Section 3.5.21.
3/CELL key
This key inputs the number 3. When an alphanumeric response is
appropriate, each press of this key alternately inputs the characters 3,
D, E, then F. Pressing the FUNC key followed by the 3/CELL key
connects the handset with any auxiliary communication equipment
with DTMF interface (RAYCOM Cellular, Mini-M, etc.) connected to
the AUX port at the rear of the transceiver. See section 3.5.19.
4/INT key (RAY230 only)
This key inputs the number 4. When an alphanumeric response is
appropriate, each press of this key alternately inputs the characters 4,
G, H, then I. Pressing the FUNC key followed by the 4/INT key alternates
the frequency groups from US mode to International mode to Canadian
mode.
4/US key (RAY230E only)
This key inputs the number 4. When an alphanumeric response is
appropriate, each press of this key alternately inputs the characters 4,
G, H, then I. Pressing the FUNC key followed by the 4/US key alternates
the frequency groups between US mode and International mode.
Note: Access to the US frequency group is only available with a
software upgrade from your dealer. Otherwise this feature is disabled.