NorthStar Navigation 710 VHF Transmitter, Receiver, Frequency 156.025 163.275 MHz, 35 uV

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Intermodulation Rejection ratio:

Residual Noise level: Audio output power:

Spurious response:

TRANSMITTER
Frequency:	156.025 - 157.425 MHz
Output power:	25 W / 1 W selectable
Transmitter protection:	Open / short circuit of antenna
Max Freq deviation:	+/- 5 kHz
Spurious & harmonics:	better than 2.5 μ W
Modulation distortion:	Less than 4%@ 1 kHz for a +/-3 kHz deviation
RECEIVER
Frequency:	156.025 - 163.275 MHz
12 dB SINAD sensitivity:	0.25 uV (distant) / 2.5 uV (local)
20 db SINAD sensitivity:	0.35 uV

Adjacent CH selectivity:more than 70 db (VHF 710US) more than 70 db (VHF 710EU) more than 70 db (VHF 710US) more than 70 db (VHF 710EU)

more than 68 db (VHF 710US) more than 68 db (VHF 710EU) more than -40 db unsquelched

2 W (with 8 ohm at 10% distortion)

4 W with 4 ohm external speaker

Compass safe distance: 0.5 m (1.5')

Speciﬁ cations are subject to change without notice.

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

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Contents Explorer 710 VHF Important Safety Information Contents RF Emissions Notice Customizing your Northstar VHF Radio FeaturesGeneral Information LCD Symbols and Meanings How to Display and Navigate MenusHow to Enter Alphanumeric Data PRI HI LOWX ALT BusySQL Basic Operation and Key FunctionsVOL/PWR Scan 3CHUIC DIMMenu ENTESC CALL/MENURadio Menu Options Menu Edit an Entry Maintain Your Buddy List Buddy ListBacklighting Backlight and Contrast Contrast Local or Distance Sensitivity LOCAL/DISTSet Distance Sensitivity Set Local SensitivityManually Enter Position and UTC Time Manual Set the Backlighting LevelSet the Contrast Level GPS Data and Time GPS/DATATime Offset GPS/DATA Manual SettingLocal Time Time Offset Course & Speed Display Options COG/SOG Time Display Options Time DisplayPosition Display Options LL display Select GPS SIM, then select on on or OFF oﬀ as desired Reset to Factory Defaults ResetGPS Alert Options Alert GPS Simulator SimulatorChannel Names CH Name Radio Setup Menu Radio SetupRadio Setup Menu Radio Setup Internal Speaker Connections INT Speaker Ring & Beep Volume Ring VOL and Beep VOLSet the Priority Channel Watch Mode Select Radio SETUP, then INT SpeakerNmea protocol COM Port Select Radio SETUP, then WX AlertRadio Setup INT Speaker Watch Mode WX Alert OFF Weather Alert Wx AlertMmsid DSC Setup Menu DSC SetupDSC Setup Menu Options Enter Your User Mmsid User MmsidEdit Group Name Details Maintain Your Groups Group SetupCreate a Group Group Setup Select DSC SETUP, then Group SetupEnter or Edit Your Atis Mmsid Delete a GroupResponse to Individual Calls Indiv Reply Atis Mmsid & Atis FunctionalityDSC functionality options DSC Func Enable Atis Functionality Atis FuncDSC Setup Indiv Reply Atis Mmsid Atis Func On OFF DSC Setup Group Setup Indiv Reply DSC Func On OFFDSC Func Manual LL Reply OFF DSC Setup LL ReplyIndiv Reply Auto Sending DSC calls Sending and Receiving DSC CallsAcknowledgement of an Individual Incoming Call Indiv Make a Routine Call IndividualRetrying a Routine Call Call All Ships ALL Ships Call a Group GroupSet the channel and continue as explained in Section Call using the Call Log Call LOGCall using the Distress Log Dist LOG Receiving an All Ships Call ALL Ships Request the LL Position of a Buddy LL RequestReceiving DSC Calls Receiving a Polled Position Call Position Receiving a Group Call GroupReceiving a Geographic Call Geograph Open the red cover labelled Distress Distress CallsSending a Distress Call Flooding ESC Exit RCV Distress Receiving a Distress Call DistressDistress Acknowledgement distress ack or Relay RCV DistressNorthstar VHF 710 US.EU Appendix a Technical SpecificationsUV distant / 2.5 uV local TransmitterReceiver Frequency 156.025 163.275 MHzAppendix B Troubleshooting International EU-DSC on Appendix C VHF Marine Channel ChartsSpecial Notes on International Channel Useage Page USA Channel Chart Send Receive Traffic Type Ship Name TAG Canadian Weather Channel Canada WX Noaa Weather Channel Noaa WXCanadian CG Canada Channel ChartPleasure Ship ShipWeather Digital selective calling for distress EU Inland Waterway Channels Country SpecificAIS 156.85162 Page Special Channels Appendix D Mmsid and License InformationInstallation Section Checklist pictured over Installation Options Checklist middle picture oppositeGimbal Installation Changing the Viewing Angle Recessed Installation picture belowConnecting the Radio Cable Pinout Color Wiring DetailsConnect the Radio Cables Rear view of base unit User Mmsid PO Box 978.897.6600800.628.4487 978.897.7241

TRANSMITTER

RECEIVER

Frequency:

156.025 - 163.275 MHz

0.25 uV (distant) / 2.5 uV (local)

0.35 uV