Monitor Mode - Raymarine Ray230 Owner's Handbook Manual

3-26 Operations
Using All Scan
Press the FUNC key followed by the 2/SCAN key The messages MEM
and SCAN flash for 3 seconds on the LCD. Before the 3 seconds elapse,
press the 2/SCAN key again to begin All Scan. If the 3 seconds elapse
before you press the 2/SCAN key, the radio will enter Memory Scan.
Pressing the 2/SCAN key or the CLR key during the scan cancels All Scan.
Note: No key functions are accepted while transmitting, Multi-calling,
or operating on the Weather or Private channels.

3.5.22 Monitor Mode

Monitor operation can be implemented in one of two modes: Dual-Watch
or Tri-Watch.
Dual-Watch
In Dual-Watch Mode, the RAY230/RAY230E operates on the Working
Channel while constantly monitoring the Priority Channel. The radio locks
onto the Priority Channel or the Working Channel whenever it becomes
active, then returns to Dual-Watch when there is no activity.
To start Dual-Watch Mode, select the desired Working Channel then press
the MON key. The Working Channel is displayed on the 7-segment display
and the Priority Channel appears on the right side of the dot matrix display.
To end Dual-Watch mode at the current channel, press the MON key or
the CLR key. If Dual-Watch mode is initiated at Channel 70, the operation
is cancelled and an error alert sounds.
Tri-Watch for US Model RAY230
In Tri-Watch Mode, the RAY230 operates on the Working Channel while
constantly monitoring the Priority Channel then the previously selected
Weather Channel for severe weather alert broadcasts. When a signal is
detected on the Working Channel or Priority Channel, that channel becomes
active. When there is no longer any activity on the Working Channel or
Priority Channel, the RAY230 returns to Tri-Watch.
If a weather alert broadcast is detected, the RAY230 emits an alert tone and
the WX indicator blinks. Tri-Watch mode terminates and the radio switches
to the WX channel to monitor the severe weather broadcast.