NorthStar Navigation Explorer 721EU CH2 and CH3 locations respectively, Weather alert mode is on

	To add a favorite channel for the first time, select that channel then hold 3CH to store
	it in the CH1 location. Repeat the procedure to store two more favorite channels in
	the CH2 and CH3 locations respectively.
	If you try and add another favorite channel it will overwrite the existing CH3. CH1
	and CH2 remain unless you delete them.
	To delete a favorite channel, select that channel then hold down 3CH until the CH1,
	CH2 or CH3 symbol disappears off the LCD.
SCAN	Scan. Scanning is not allowed in some European countries. Otherwise, press to
	scan between your current channel and the priority channel in DUAL or TRI WATCH
	mode. The weather channel is also scanned if the USA channel bank is selected and
	the weather alert mode is ON.
	Hold down SCAN to enter ALL SCAN mode where the priority channel is checked
	every 1.5 seconds.
	When a signal is received, scanning stops at that channel and BUSY appears on the
	LCD. If the signal stops for more than 5 seconds, the scan restarts.
	Press ENT or push the rotary knob to temporarily skip over (lock out) an“always busy”
	channel when in ALL SCAN mode and resume the scan. An X is shown on the LCD
	to designate a skipped channel. It’s not possible to skip over the priority channel.
	Press SCAN to stop at the curr.ent channel.
CALL/MENU	Radio Menu, DSC Set up Menu, Radio Set up Menu and DSC CALL Menu.
	Hold down to show the radio menu (see Section 2) and to access the radio set up
	menu (see Section 3) and the DSC set up menu (see Section 4).
	Press to enter the DSC call menu and to make DSC calls (see Section 5).
WX	Weather Channel. 721US only. In USA and Canadian waters, press to hear the most
	recently selected weather station. The WX symbol is displayed on the LCD.
	Press CH + or CH - to change to a different weather channel. Press WX again to
	return to the most recent channel.
	If the weather alert mode is ON and an alert tone of 1050 Hz is broadcast from the
	weather station, it’s picked up automatically and the alarm sounds. Press any key
	to hear the weather alert voice message.
IC or H/L IC	Intercom. Optional 701US or 701EU handset required. Hold down to enter Intercom mode
	on USA models. EU models need just a single press and release.. This disables the radio
	receiver except for incoming DSC calls and the intercom calls the other unit.
	Press PTT when invited. When you’re finished, press ESC to exit Intercom mode or
	put the handset back on hook.
ESC	Escape. Use ESC when navigating menus, to clear incorrect entries, to exit from a
	menu without saving changes, and to back up to the previous screen.
Rotary knob	Channel Select. Turn to select a channel. The current channel is shown on the LCD
	in BIG digits with an A or B designator suffix (if applicable) in small letters below the
	channel number. (See Appendix C for a listing of channel frequencies.)
	Push to activate the ENTER function.
	You can also use the rotary knob for alphanumeric entry if you don’t have an alpha-
	numeric micrphone. Turn to step through alphanumeric characters one at a time
	then push to confirm each selection. If you make an error, select the < character
	then push to backup.

Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual 11