MONITOR
Pressing and holding the MONITOR button for 1 second will let you hear noise so you can adjust the volume level of the radio when not receiving a signal. This should be used to check activity on your current channel before transmitting. Press and release the Monitor button for 1 second to get out of Monitor mode.
SCAN
Your Nautico1 can scan all channels for activity. To enter, quickly press the SCAN button. Repeat the same procedure to exit. Your radio will rapidly scan each of the channels and stop on any active channel for 5 seconds before resuming scan. When you press the PTT button to transmit on an active channel, the scanning function will stop and remain on the active channel. To resume
scanning, quickly press the 
button.
INSTANT CHANNEL 16/9
Channel 16 (Distress Channel) is used for calling other stations or for distress alerting. Channel 16 is automatically monitored during both dual watch and tri watch. You must monitor Channel 16 while standing by. Channel 16 is only to be used in emergency situations. You can also switch to Channel 9, the
CALL TONE
Your Nautico1 can transmit a call tone for a fixed length of time. To send a call tone, press the PTT button twice within ½ second. The TX icon will appear while transmitting a call tone and a tone can be heard on the speaker for confirmation.
KEYPAD LOCK
To avoid accidentally changing the radio setting, press the MENU button 4 times then press an up/down button to choose ON. The KEY LOCK icon will appear on the display. PTT and CH 16 will still be active. To unlock the keypad, press the
MENU button once, then press the 
button to choose OF.
DISPLAY ILLUMINATION
During Power on, the display illumination will activate for approx. 7 seconds. The display illumination can also be activated when the MENU button is pressed.
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