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 |