Garmin VHF 720 - Manual (Page 25)

19
GETTING
STARTED
Tri-Watch
NOTE: If the PTT key is pressed during scanning (when
the display is changing) it will cancel SCAN and stop at
the channel last scanned. If a channel is static (being
received) you must transmit within 5 seconds after the
received broadcast ends before SCAN moves to the
next channel. After transmitting, scanning resumes when
you release the key. Pressing any other keys will cancel
the scan with the exception of the Power, Volume +,
Volume -, Squelch and Hi/low keys.
4. To remove a channel from the scan memory, simply
access it with the UP/DOWN arrow keys and press
the MEM key.
NOTE: Channels entered into memory will be
retained when the unit batteries are removed.
Tri-Watch
Tri-Watch is a method of monitoring the
emergency channel 16 and the alternate hailing
channel 9 while monitoring the channel you are
using for communications.
To use Tri-Watch:
1. First determine which channel other than 16 and 9
that you desire to monitor, then use the UP or
DOWN arrow keys to make a choice.
2. Press and hold the TRI-16/9 key for more than one
second. (Figure 8)
3. Observe the LCD display showing TRI-16-9, and
the cycling set of channel numbers indicating that
the TRI-WATCH feature is active.
4. Observe that when a transmission is received by
the third channel, reception will be briefly inter-
rupted to monitor channels 16 and 9. If reception is
on channel 9 it will be interrupted to monitor
channel 16. Channel 16 always has priority in TRI-
WATCH.
5. To cancel the TRI-WATCH feature, press the TRI-
16/9 key to monitor only channel 16 or any other
key to return to a selected channel.
FIGURE 8
Tri-Watch Display
Press and
Hold for
More Than
1 Second
TRI