NorthStar Navigation 710 VHF installation manual 3CH, Uic, Dim, Scan

H/L	Transmission Power. High (HI) 25 W or Low (LO) 1 W. Press to toggle between high
	or low transmission power for the entire channel bank. The HI or LO selection is
	shown on the LCD.
	Some channels allow only low power transmissions. Error beeps will sound if the
	power transmission setting is incorrect.
	Some channels allow only low power transmissions initially, but can be changed
	to high power by holding down H/L and PTT at the same time. See Appendix C for
	a complete listing of channel charts.
3CH	Three Favourite Channels. Also on the microphone. Press to toggle between your
	favourite channels. The CH1, CH2, or CH3 symbol appears on the LCD to show which
	favourite channel is selected.
	To scan only one of your favourite channels, press 3CH then immediately press
	and release SCAN. If you want to scan all three favourite channels, press 3CH then
	immediately press and hold SCAN.
	To add a favourite 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 favourite
	channels in the CH2 and CH3 locations respectively.
	If you try and add another favourite channel it will overwrite the existing CH3. CH1
	and CH2 remain unless you delete them.
	To delete a favourite channel, select that channel then hold down 3CH until the
	CH1, CH2 or CH3 symbol disappears off the LCD.
UIC	Channel Bank. 710US only. Press to toggle between USA, International or Canadian
	channel banks. The selected channel bank is displayed on the LCD along with the
	last used channel. All the channel charts are shown in Appendix C.
U/I	Channel Bank. Press to toggle between channel banks. Note that the channel banks
	available are dependent upon your VHF radio model. The selected channel bank is
	displayed on the LCD along with the last used channel. All the channel charts are
	shown in Appendix C.
DIM	Backlighting. 710EU only. Press to toggle between the backlighting settings. OFF
	will extinguish all the backlighting except for the DISTRESS key. (Otherwise, use the
	menu to change the backlight setting.)
SCAN	Scan. 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 (ALT) 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
	screen. If the signal ceases for more than 5 seconds, the scan restarts.
	Press ENT 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 screen to designate a
	skipped channel. Note that it is not possible to skip over the priority channel.
	Press SCAN to stop at the current channel.
+ CH -	Channel Select. Also on the microphone. The current channel is shown on the screen
	in BIG digits with an appropriate designator suffix A or B in small letters below the
	channel number.

Northtstar Explorer VHF Series: 710US, 710EU Operation and Installation Manual 9