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Chapter 4: General Operations 27
4.12 Using the Monitor Modes
The Watch Modes monitor the programmed Priority Channel and other user-
selected channel(s). The watch is halted when activity is detected on a
monitored channel. The Ray54E is equipped with 2 types of monitor
operations: Dual Watch and Tri Watch.
Note: Monitor modes are disabled when the ATIS operation is active.
Dual Watch
Press and release the DW/TRI key to activate the Dual Watch mode.
DUAL CH16 appears in the dot matrix display.
Dual Watch monitors the current working channel
and Channel 16 in cycle.
Dual Watch is demonstrated in the figure to the left;
the sample working channel is CH 72.
Press and release the DW/TRI key to terminate Dual
Watch and return to the previous working channel.
Press and hold the DW/TRI key to terminate Dual Watch mode and go into
Tri Watch mode.
Press and release the CLEAR key to terminate Dual Watch mode and return
to the last-used channel.
Press and release the 16/PLUS key to terminate Dual Watch mode and
switch to the Priority Channel.
Note: During Dual Watch mode, the SCAN/SAVE, USER and CH keys are
inactive and sounds an error beep if pressed.