NorthStar Navigation 721EU, 721US User Manual

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Page 1

Explorer 721US / 721EU

VHF Marine Radio

Operation and Installation Manual

www.northstarnav.com

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IMPORTANT SAFETY INFORMATION

Please read carefully before installation and use.

This is the safety alert symbol. It is used to alert you to potential personal injury hazards, Obey all safety messages that follow this symbol to avoid possible injury or death.

WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury

CAUTION indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury.

CAUTION used without the safety alert symbol indicates a potentially hazardous situation which, if not avoided, may result in property damage.

DISCLAIMER: It is the owner’s sole responsibility to install and use the instrument and transducers in a manner that will not cause accidents, personal injury or property damage. The user of this product is solely responsible for observing safe boating practices.

BRUNSWICK NEW TECHNOLOGIES INC. AND ITS SUBSIDIARIES AND AFFILIATES DISCLAIM ALL LIABILIT Y FOR ANY USE OF THIS PRODUCT IN A WAY THAT MAY CAUSE ACCIDENTS, DAMAGE OR THAT MAY VIOLATE THE LAW.

Governing Language: This statement, any instruction manuals, user guides and other information relating to the product (Documentation) may be translated to, or

has been translated from, another language (Translation). In the event of any conf lict between any Translation of the Documentation, the English language version of the Documentation will be the official version of the Documentation.

This manual represents the Explorer 721 as at the time of printing. Brunswick New Technologies Inc. and its subsidiaries and affiliates reserve the right to make changes to specifications without notice.

FCC Statement

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a normal installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and receiver.

Connect the equipment into an outlet on a circuit different from that to which the receiver is

connected.

Consult the dealer or an experienced technician for help.

A shielded cable must be used when connecting a peripheral to the serial ports.

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

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Contents

Secti on 1 - General Infor mation ............................................................................................................... 6

1-1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1-2 Customize your Northstar VHF Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

1-3 How to Display and Navigate Menus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

1-4 How to Enter or Change Alphanumeric Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1-5 LCD Symbols and Meanings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1-6 How the Microphone and Optional Handset Work Together . . . . . . . . . . . . . . . . . . . . . . 9

1-7 Basic Operation and Key Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Secti on 2 - The Radio Menu (MENU)

2-1 The Radio Menu Options (MENU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

2-2 Show Weather, SNR, or Happy Fish on Handset (INFO DATA) . . . . . . . . . . . . . . . . . . . . . 14

2-3 Maintain Your Buddy List (BUDDY LIST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2-4 Local or Distance Sensitivity (LOCAL/DIST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

2-5 Backlighting (BACKLIGHT) and Contrast (CONTRAST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2-6 GPS Data and Time (GPS/DATA) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2-7 GPS Simulator (GPS SIM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

2-8 Reset to Factory Defaults (RESET) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Secti on 3 - The Radio Setup Me nu (RADIO SETUP) ..................................................................................... 21

3-1 The Radio Setup Menu Options (RADIO SETUP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

3-2 Select the Channel Bank (UIC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3-3 Change Channel Names (CH NAME) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3-4 Ring and Beep Volume (RING VOL) and (KEY BEEP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

3-5 Internal Speaker Connections (INT SPEAKER) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

3-6 Set the Priority Channel (WATCH MODE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3-7 Weather Alert (Wx ALERT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

3-8 NMEA or NAVBUS Protocol (COM PORT) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3-9 Barometric Displays (BARO SENSOR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

3-10 Temperature Display (TEMPERATURE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Secti on 4 - The DSC Setup Menu (DSC SETUP) ............................................................................................ 26

4-1 The DSC Setup Menu Options (DSC SETUP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

4-2 Check Your User MMSID (USER MMSID) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

4-3 Maintain Your Groups (GROUP SETUP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4-4 Response to Individual Calls (INDIV REPLY) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4-5 ATIS MMSID & ATIS Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4-6 DSC Functionality (DSC FUNC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

..............................................................................................13

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4-7 Response Type to LL Polling Calls (LL REPLY) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

4-8 Mute the Notification Ring Tone (LL RING) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

Secti on 5 - Send and Receive DSC C alls ..................................................................................................... 30

5-1 What is DSC? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

5-2 The DSC Call Menu Options (DSC CALL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

5-3 Call an Individual (INDIVIDUAL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5-4 Call the Most Recent Incoming Call (LAST CALL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

5-5 Call a Group (GROUP CALL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

5-6 Call All Ships (ALL SHIPS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

5-7 Call using the Call Log (CALL LOG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5-8 Call using the Distress Log (DIST LOG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

5-9 Request the LL Position of a Buddy (LL REQUEST) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34

5-10 Receive an All Ships Call (RCV: ALL SHIPS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

5-11 Receive an Individual Call (RCV: INDIV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

5-12 Receive a Group Call (RCV: GROUP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

5-13 Receive a Geographic Call (RCV: GEOGRAPH) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

5-14 Receive a Polled Position Call (RCV: POSITION) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Secti on 6 - Distress Cal ls .......................................................................................................................... 37

6-1 Send a Distress Call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

6-2 Receive a Distress Acknowledgement (DISTRESS ACK) . . . . . . . . . . . . . . . . . . . . . . . . . . .37

6-3 Receive a Distress Call (RCV: DISTRESS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

6-4 Relay a Distress Call (RCV: DISTRESS RELAY) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

6-5 Relay a Distress Call from the Distress Log (RELAY) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

Append ix A - Technica l Specifications ......................................................................................................39

Append ix B - Troubleshooting ................................................................................................................. 41

Append ix C - VHF Marine Channe l Charts ................................................................................................. 42

Append ix D - MMSID and License Info rmation ......................................................................................... 54

Secti on 7 - Install the Ex plorer 721 .......................................................................................................... 55

7-1 Installation Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

7-2 Location Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

7-3 Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .55

7-4 Gimbal Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56

7-5 Change the Viewing Angle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57

7-6 Recessed Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

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7-7 Install the Microphone Bulkhead Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

7-8 Connect the Radio Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .58

7-9 Set Up the Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

7-10 Enter Your User MMSID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .59

7-11 The Completed Installation (with Optional Handset) . . . . . . . . . . . . . . . . . . . . . . . . . . . .60

Industry Canada

Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.

RF Emissions Notice:

This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This device’s antenna must be installed in accordance with provided instructions; and it must be operated with minimum 96 cm spacing between the antennas and all person’s body (excluding extremities of hands, wrist and feet) during operation. Further, this transmitter must not be co-located or operated in conjunction with any other antenna or transmitter.

IMPORTANT:

1. Some features described in this manual are not available on every model.

2. DSC functions will not operate on the radio until your user MMSID has been entered. See Section

7.9 for details.

3. The radio channels installed into the radio may vary from country to country, depending upon the model, and government or national communications authority regulations.

4. Brunswick New Technologies Inc. recommends that you check the radio operating licensing requirements of your country before using the radio. The operator is solely responsible for observing proper radio installation and usage practices.

5. A DSC warning label is supplied with the 721US. To comply with FCC regulations, this label must be aﬃ xed in a location that is clearly visible from the operating controls of this radio. Make sure that the chosen location is clean and dry before applying this label.

Optional Handset

This manual describes the operation and installation procedures for the Northstar Explorer 721US and 721EU base unit and microphone. An optional Northstar 701US or 701EU handset can be purchased and installed to give second station operation and intercom facilities.

5Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual

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Section 1 - General Information

1-1 Fea tur es

Congratulations on your purchase of a Northstar VHF E xplorer 721US or 721EU marine band radio. Both of these models provide the following useful features:

• Prominent channel display and rotary channel selec tor knob with PRESS TO ENTER function

• Local/Distance mode to eliminate noise in high traffic areas

• Adjustable contrast set tings for the LCD

• Adjustable keypad backlighting for easy night-time use

• Waterproof and submersible to comply with JIS-7

• GPS latitude and longitude (LL) and time display (when connected to a GPS)

• Info key to display barometric data and temperature, or Signal-to-Noise Ratio (SNR)

• Happy Fish symbol that indicates the fishing conditions

• Choice of High or Low (25 W or 1 W) transmission power

• Top centered PTT button for comfortable left- or right-handed use

• Powerful 4 W external audio output

• Access to all currently-available marine VHF channel banks (USA, Canada, International) including weather channels where available

• Special CH16 or CH16/9 key for quick access to the priority (international distress) channel

• Special 3CH key to select your three favorite channels

• PSCAN (similar to dual watch) facilit y

• DSC (Digital Select Calling) capability that meets USCG SC101 for USA, Class D Standards for EU/Canada Commercial, and Recreational Class S for Canada

• Distress call key to automatically transmit the MMSID and position until an acknowledgement is received

• Easy access to a buddy list of up to 20 favorite people

• MMSID storage for three favorite groups

• Group call and All Ships call facility

• LL position polling information and Track Your Buddy facility

• Weather alert facility. 721US only

• ATIS facility for inland water ways. 721EU only

• Alphanumeric microphone for easy, direct channel entry and information editing. 721EU only

• Useful INTERCOM facility if the optional 701US or 701EU handset is installed.

1-2 Customize you r Northstar VHF Radio

You can customize the radio to suit your individual preferences. Some preferences can be set directly through the keys as explained in this section.

Other preferences are set up through the built-in menus and these are explained in the other sections.

1-3 How to Display and Navigate Me nus

1. Hold down CALL/MENU to show the radio menu

Press CALL/MENU to show the DSC call menu.

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

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2. Only four menu items can be displayed at any one time on the LCD. Press CH + or CH - to scroll up and down the menu until the cursor is positioned at the desired option. Press ENT or push the rotary knob to display that option.

3. Make any entries or changes as explained in the following section.

4. Press ENT or push the rotar y knob to confirm changes. Otherwise, press ESC to keep the original entry.

5. Press ESC to backup one screen or exit. Any changes are active as soon as you exit the screen.

1-4 How to Enter or Chang e Alphanumeric Da ta

If your radio doesn’t have an optional alphanumeric microphone, use the + CH - key to enter alphanumeric data as follows:

• Press CH - to count through numbers, or hold down to scroll rapidly to the desired number.

• Press CH + to step through the alphabet, or hold down to scroll rapidly to the desired character.

• If you make an error, press CH - until < is displayed, then press ENT or push the rotary knob to

backup and correct the entry.

If your radio has an alphanumeric microphone, use the keypad to enter the cahnngel numbers and names. Each key has the functionality shown below.

• Use CLR to backup and ENT to confirm, or just wait for the cursor to advance automatically to the

next position when entering data (similar to mobile phone operation),

KEY 0 123456789

Normal and Menu Mode

Edit Mode

Push 1

Push 2 Space - A D G J M P T W

Push 3 ( . B E H K N Q U X

Push 4 ) “ C F I L O R V Y

Push 5 % / ? ! : # “ S & Z

0 123456789

1-5 LCD Symbols an d Meanings

The simulation shows the locations of all the following information symbols on the LCD displays.

Optional handset displayBase unit display

7Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual

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These symbols may not appear at all or may be shown in a different location on the optional handset.

Symbol Meaning

TX Transmitting.

HI LO Transmission power. High (HI) 25 W or Low (LO) 1 W.

WX Weather channel.

WX ALT Weather Alert. Alarm beeps will sound. 721US only.

BUSY Receiver busy with an incoming signal.

PRI Priority channel is selected.

D Duplex operation. Otherwise, blank for Simplex operation.

LOCAL Local calling is selected. Otherwise, blank for distance calling.

DSC DSC capability is available.

Indicates an incoming DSC call, or blinks to notify you of any unread Call Log

messages

Low Battery warning (activates at 10.5 V)

88 Channel selected.

USA INT CAN Selected channel bank for VHF radio operations and regulations.

X Channel is temporarily deleted from the ALL SCAN operation.

B A Channel suﬃ x, if applicable.

CH1 CH2 CH3 Shows which of the 3 favorite channels, if any, are selected.

Otherwise blank.

ATIS Enabled for use in European inland waterways. Otherwise blank. 721EU only.

DSC DSC capability is available.

ACK A message acknowledging your DSC call is being displayed.

Happy Fish symbol with one to four indicator bars to show the probability of good

ﬁ shing at your current location, based upon barometric pressure and air temperature. Four bars show that good ﬁ shing is likely. High pressure trends are associated with stable conditions and calm seas. Research indicates that best ﬁ shing occurs when barometric pressure is rising and between 1010 and 1022 mb. During these opportune conditions, most ﬁ sh are thought to feed anywhere within the water column. However, low pressure trends bring stormy seas and aﬀ ect air bladders, and these conditions make ﬁ sh move to deeper levels and become less active.

Local weather forecast based on the local temperature and stored barometric pres-

sure data. The icons are indicative only and are more accurate close to land rather than in open sea.

Digital Readout of the current barometric pressure (in mb or in/Hg) or the current

temperature (in ºC or ºF), depending upon your selection.

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

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Baro Graph. A histogram of barometric pressure readings over the past 24 hours.

A typical operational display on base unit LCD:

A typical operational display on Optional Handset LCD:

The high-resolution histogram centers automatically if the range goes oﬀ scale. Readouts are taken even when the engine and radio have been powered down (with typically less than 3mA of current drain).

A transmission on Channel 16 is being made at high power using the International channel bank .

Channel 16 is set as the Priority channel.

There is an incoming DSC DISTRESS call so the receiver is busy.

The latitude and longitude of the vessel and UTC time are shown.

3 bars by the Happy Fish indicates rising barometic trends and reasonable fishing conditions.

The weather indicates shower y conditions.

1-6 How the Micropho ne and Optional Handse t Work Together

If you have the optional handset installed, as well as the microphone:

• neither item works when both are ON hook, but you can hear the audio from the handset

speaker and adjust the handset volume.

• to use one item when it’s OFF hook, the other item must be ON hook.

• if both items are OFF hook, only the microphone works.

• in Intercom mode ONLY, both items work OFF hook.

9Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual

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1-7 Basic Operation and Key Func tions

Explorer 721

All possible keys on the base unit, the microphone, and the optional handset are listed and their functions are explained.

NOTE: Some keys or functions may not be available on your particular model of base unit, microphone, or optional handset. This example shows the 721US base unit.

Key Function

VOL PWR Volume and Power. Turn clockwise to power on. Continue to turn until a comfortable

SQL Squelch or Threshold Level. Sets the threshold level for the minimum receiver

In areas of high noise (eg close to large cities) reception may improve if sensitivity

DISTRESS Send DSC Distress Call. See Section 6.

16/9 Priority Channel. 721US only. Press to cancel all other modes and to tune into the

The default is Channel 16. To make Channel 09 the priority channel, hold down 16/9

16 Priority Channel. 721EU only. Press to cancel all other modes and to tune into the

3 CH Three Favorite Channels. Press to toggle between your favorite channels. The

To scan only one of your favorite channels, press 3CH then immediately press and

volume is reached. VOL/PWR will also adjust the settings of an external speaker, if connected.

signal. Turn fully counterclockwise until random noise is heard, then turn slowly clockwise until the random noise disappears. Make another 1/4 turn clockwise for best reception in open sea conditions.

is reduced. Either turn SQL slowly clockwise or use the LOCAL setting. See section

2.4.

priority channel. Press again to return to your original channel.

until a beep sounds and 09 is displayed.

priority channel, Channel 16, on high power. Press again to return to your original channel.

CH1, CH2, or CH3 symbol appears on the LCD to show which favorite channel is selected.

release SCAN. If you want to scan all three favorite channels, press 3CH then immediately press and hold SCAN.

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To add a favorite channel for the ﬁ rst 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 diﬀ erent 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 ﬁ nished, 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 suﬃ x (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 conﬁ rm each selection. If you make an error, select the < character then push to backup.

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

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info Information. Press on the base MIKE to toggle through the INFO display to show

the barometric historgram, the barometric readout and temperature, or the Signalto-Noise Ratio (SNR).

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.

+ CH - Channel Select. Press CH + or CH - to step through the available channels one at a

time, or hold down to scroll rapidly through all the available channels. The current channel is shown on the LCD in BIG digits with an A or B designator suﬃ x (if applicable) in small letters below the channel number. (See Appendix C for a listing of channel frequencies.)

Press CH + or CH - to scroll the cursor up and down menu options on the LCD when

navigating menus.

When editing an item containing only numbers, press CH - to step through the

numbers or hold down to scroll rapidly.

To enter a character, press Ch = to step through the alphabet or hold down to scroll

rapidly.

ENT Enter. Press ENT when navigating menus, to conﬁ rm entries and edits.

PTT Press To Talk. Press PTT to transmit at any time on an allowable channel. This auto-

matically exits you from menu mode and stops scanning.

You must release PTT to receive a signal.

If PT T sticks, a built-in timer will automatically shut down a transmission after ﬁ ve

minutes and sound the error beeps. This timer is required by FCC regulations.

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

Page 13

Section 2 - The Radio Menu (MENU)

(

Handset only

)

DSC SETUP

ly)

Hold down CALL/MENU to show the radio menu options.

Sections 1-3 and 1-4 explain how to navigate around the menu and enter, save and change data.

2-1 The Radio Menu Options (MENU )

Show weather, SNR or Happy Fish information on the handset.

NFO DATA

See Section 2-2.

BUDDY LIST

CAL/DIST

BACKLIGHT

NTRAST

GPS

DAT

RADIO SET

GPS SIM

ET (Base unit on

Maintain your buddy list.

See Section 2-3.

Set backlight level.

See Section 2-5.

MANUAL SETTING

USER MMSID

GROUP SETUP

INDIV REPLY

DSC FUNC

ATIS MMSID

ATIS FUNC

LL REPLY

UIC

CH NAME

RING VOLUME

KEY BEEP

INT SPEAKER

WATCH MODE

WX ALERT

COM PORT

BARO SENSOR

TEMPERATURE

HAPPY FISH

Turn the GPS Simulator on/oﬀ .

See Section 2.7.

(EU only)

(721US only)

Set radio sensitivity.

See Section 2-4.

Set contrast level.

See Section 2-5.

Set position & UTC manually.

See Section 2-6.

Set local time and time format.

See Section 2-6.

DSC SETUP Menu.

See Section 4.

RADIO SETUP Menu.

See Section 3.

Reset factory settings.

See Section 2.8.

13Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual

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2-2 Show Weather, SNR or Happy Fish on Handset (INFO DATA)

If you have the optional handset installed, you can use INFO DATA to show the local weather forecast (e.g. SUNNY) and a digital readout of the current barometric pressure (mb or in-Hg) and the channel name on the handset LCD.

MENU SELECT >INFO DATA BUDDY LIST LOCAL/DIST

INFO DATA >ON

OFF

After INFO DATA is selected ON, the following screen appears on the handset with Line #3 able to display 3 items of interest - temperature, Signal To Noise ratio (SNR) or HAPPY FISH quality.

• a digital readout of the current air temperature (°F or °C)

• the current Signal-to- Noise Ratio (SNR)

• the Happy Fish symbol with indicator bars.

1. Hold down CALL/MENU to display the radio menu.

2. The cursor is at INFO DATA. Press ENT then select INFO ON to display the information on the handset LCD, instead of the time and GPS position.

3. 78.4°F is replaced by SNR bars if handset is OFF HOOK.

4. Happy Fish symbol replaces TEMP/SNR if triggered after which it times out.

DISTRESS A BIT CLOUDY

78.4

°F

29.99in-Hg

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

Page 15

2-3 Maintain Your Buddy Li st (BUDDY LIST)

Use the Buddy List to store the names and associated MMSIDs of 20 favorite people.

MENU SELECT >BUDDY LIST

The following sections show to use BUDDY LIST to add, edit, and delete entries in

LOCAL/DIST BACKLIGHT

Section 3 explains how to call a buddy.

Names are stored in the order of entry, with the most recent entry shown ﬁ rst.

your buddy list.

2-3-1 Add an Entry

BUDDY LIST > MANUAL NEW ALEX TOM

1. Select BUDDY LIST. The cursor is at MANUAL NEW. Press ENT.

2. Enter the buddy name, one character at a time (this may be alphanumeric) then press ENT or push the rotary k nob repeatedly until the cursor moves to the MMSID entry line.

3. Enter the MMSID (this must be numeric) associated with that buddy name then press ENT.

4. The new buddy name and MMSID are displayed. Press ENT or push the rotary knob to store the new entry, which is displayed at the top of your buddy list.

NOTE: When the BUDDY LIST is full (20 entries), you can’t make a n ew entry until you have deleted an existi ng entry

ENTER NAME –––––––––––– ENTER MMSID –––––––––

ENTER NAME BOB ENTER MMSID 123456789

BOB 123456789 > STORE CANCEL

2-3-2 Edit an Entry

BUDDY LIST > MANUAL NEW ALEX TOM

ALEX > EDIT DELETE

EDIT NAME ALEX EDIT MMSID 112233445

1. Select BUDDY LIST. Press ENT or push the rotary knob to display the list of entries.

2. Scroll down (if required) to the incorrect entry and press ENT.

3. Select EDIT. The cursor is at the first character of the name.

4. Edit the buddy name or, to edit only the MMSID, press ENT or push the rotary knob repeatedly until the cursor moves to the MMSID line.

5. When you are finished, press ENT or push the rotary knob (repeatedly if necessary) to display the next screen.

6. Press ENT or push the rotary knob to store the changes. The buddy list is displayed again. If more changes are required, repeat Steps 2 thru 6. Otherwise, press ESC to exit.

ALEX 111223344 > STORE CANCEL

15Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual

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2-3-3 Delete an En try

BUDDY LIST > MANUAL NEW ALEX TOM

TOM > EDIT DELETE

DELETE BUDDY TOM > YES NO

1. Select BUDDY LIST. Press ENT or push the rotary knob to display the list of entries.

2. Scroll down (if required) to the entry you want to delete and press ENT.

3. Select DELETE then select YES.

4. The entry is deleted immediately and the buddy list is displayed again.

2-4 Local or Distan ce Sensitivity (LOCAL/D IST)

Use LOCAL/DIST to improve the sensitivity of the receiver either locally (LOCAL) or

MENU SELECT INFO DATA

LOCAL is NOT recommended for use in open sea conditions. It’s designed for use

BUDDY LIST > LOCAL/DIST

See also SQL (Squelch Control) in Section 1.6.

over distances (DIST).

in areas of high radio noise; e.g. when you’re close to a city.

2-4-1 Set Distance Sensitivi ty

SENSITIVITY > DISTANT LOCAL

1. Select LOCAL/DIST then select DIST.

2. Press ENT or push the rotary knob to activate the DIST setting. This disables local sensitivity and the menu is displayed again.

2-4-2 Set Local Sensitivit y

SENSITIVITY DISTANT > LOCAL

LOCAL is displayed on the LCD in reverse video, as a reminder that local sensitivity is selected.

1. Select LOCAL/DIST then scroll to LOCAL.

2. Press ENT or push the rotary knob to activate the LOCAL setting. This disables distance sensitivity and the menu is displayed again.

2-5 Backlighting (BACKLIGHT ) and Contrast (CONTRAST)

MENU SELECT LOCAL/DIST > BACKLIGHT CONTRAST

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

Use BACKLIGHT to set the backlight levels for the LCD at a comfortable level.

The microphone keypad backlighting is either ON or OFF.

The DISTRESS key backlighting can’t be switched oﬀ .

Use CONTRAST to set the contrast level for the LCD.

Page 17

2-5-1 Set the Backlig hting Level

BACKLIGHT

LO HI PRESS ENT

1. Select BACKLIGHT.

2. Use CH + or CH - to select a comfortable backlight level.

3. Press ENT or push the rotary knob to conﬁ rm the new level and return to the menu.

2-5-2 Set the Contrast Le vel

1. Select CONTRAST.

CONTRAST

LO HI PRESS ENT

2. Use CH + or CH - to select a comfortable contrast level.

3. Press ENT or push the rotary knob to conﬁ rm the new level and return to the menu.

2-6 GPS Data and Time (GPS/DATA)

MENU SELECT BACKLIGHT CONTRAST > GPS/DATA

This information is important because it will be used if you transmit a DSC distress call.

If your vessel has an operational GPS navigation receiver, the radio automatically detects and updates the vessel position and the local time.

However, if the GPS navigation receiver is disconnected or absent, you can specify the vessel position and the local time manually, using the GPS/DATA option.

2-6-1 Manually Ente r Position a nd UTC Time (MANUAL)

NOTE: This function is available only when an operational GPS receiver is NOT connected.

GPS/DATA > MANUAL SETTING

1. Select GPS/DATA, then MANUAL.

2. Enter the latitude, then the longitude, then the UTC.

3. Press ENT or push the rotary knob when all the information is correct.

The vessel’s latitude and longitude are shown on the screen, with the UTC time. After entering your

manual LL position, the preﬁ x “M” in the normal GPS screen indicates a manual entr y. The manual entries are cancelled if a real GPS position is received.

MANUAL LL ––’ ––’ ––––N ––’ ––’ ––––W MAN ––:––UTC

17Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual

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2-6-2 Local Time (TIME OFFSET)

The local time can be set by entering the time oﬀ set between UTC and local time as follows.

GPS/DATA MANUAL >SETTING

GPS/DATA > TIME OFFSET TIME FORMAT TIME DISPLY

TIME OFFSET >+01:30

02:30PM LOC

1. Select GPS/DATA, then SETTING.

2. Select TIME OFFSET to enter the diﬀ erence between UTC and local time. Half hour increments can be used with a maximum oﬀ set of ±13 hours.

In this example, a diﬀ erence of +1.5 hours has been entered and the local time is displayed with the

suﬃ x LOC.

International Date Line

†

STANDARD TIME ZONES

Daylight Saving Time (Summer Time),

usually one hour in advance of Standard

Map outline © Mountain High Maps

Compiled by HM Nautical Almanac Office

180°

Corrected to January 2005

Zone boundaries are approximate

Time, is kept in some places

150°W

120°W

90°W

60°W

‡

30°W

+330

+430

0°

C D F

Standard Time = Universal Time + value from table

+530

+630

+930

‡

30°E

+10

+10 30

+11

+11 30

+12

+13

M†

+14

No Standard Time legallyadopted

60°E

-1

-2

-3

-330

-4

-5

-6

90°E

M Y

-7

-8

-830

-9

-930

-10

-11

-12

120°E

International Date Line

150°E

‡

180°

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

Page 19

2-6-3 Time Format Option s (TIME FORMAT)

Time can be shown in 12 or 24 hour format.

GPS/DATA MANUAL > SETTING

SETTING TIME OFFSET > TIME FORMAT TIME DISPLAY

TIME FORMAT > 12 Hr 24 Hr 07:15AM LOC

1. Selec t GPS/DATA, then SETTING.

2. Select TIME FORMAT.

3. Select 12 Hr or 24 Hr as desired. In this example, 12 hour format has been selected so the LCD shows

the AM or PM suffix.

2-6-4 Time Di splay Options (TIME DISPLAY)

If you’ve entered the time manually as described in the previous sections, the time is shown ALWAYS with the preﬁ x M.

However, if the vessel’s position is being updated through a GPS navigation receiver, you can switch the time display ON or OFF as follows:

GPS/DATA TIME OFFSET TIME FORMAT > TIME DISPLY

TIME DISPLY ON > OFF

1. Select GPS/DATA, then SETTING.

2. Select TIME DISPLY.

3. Select ON or OFF as desired. In this example, OFF has been selected and so the LCD no longer shows the time.

If the time display is set ON, course and speed data are NOT displayed on the LCD (see section 2-5-6).

2-6-5 Position Dis play Options (LL displa y)

If you’ve entered the vessel position manually as described in the previous section, the vessel position is shown ALWAYS with the suﬃ x M.

However, if the time is being updated through a GPS navigation receiver, you can switch the vessel position display ON or OFF as follows:

GPS/DATA TIME FORMAT TIME DISPLY > LL DISPLAY

LL DISPLAY ON > OFF

1. Select GPS/DATA, then SETTING.

2. Select LL DISPLAY.

3. Select ON or OFF as desired. In this example, OFF has been selected and the screen no longer shows the vessel position.

2-6-6 Course & Spe ed Display Options (COG/SOG )

Use this option to display course over ground (COG) and speed over ground (SOG) data on the screen.

GPS/DATA TIME DISPLY LL DISPLY > COG/SOG

COG/SOG > ON OFF

If COG/SOG is set ON, the time is NOT displayed on the screen (see section 2-5-4).

1. Select GPS/DATA, then SETTING.

2. Select COG/SOG.

3. Select ON or OFF as desired. In this example, ON has been selected, so the screen shows the bearing and speed.

19Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual

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2-6-7 GPS Alert Opt ions (ALERT)

The GPS alert is usually set to ON so that if the GPS navigation receiver is disconnected, the alarm sounds.

GPS/DATA LL DISPLY COG/SOG > GPS ALERT

GPS ALERT > ON OFF

1. Select GPS/DATA, then SETTING.

2. Select GPS ALERT.

3. Select ON or OFF as desired.

2-7 GPS Simulator (GPS SIM)

The GPS Simulator is set to OFF whenever the radio is turned ON or whenever real GPS data is available through the COM port. However, if you want to test the GPS Simulator, turn it ON as follows:

MENU SELECT DSC SETUP RADIO SETUP > GPS SIM

1. Select GPS SIM, then select ON or OFF as desired.

Whenever the GPS Simulator is turned ON, simulated Speed Over Ground

(SOG), Course Over Ground (COG), and LL position appear on the screen. This data is updated automatically during the simulation.

IMPORTANT: It’s not possible to send a DSC transmission when you’re in GPS Simulator mode.

2-8 Reset to Factor y Defaults (RESET)

Use RESET to return every setting to the factory defaults EXCEPT all MMSID settings and the entries in your buddy list.

MENU SELECT RADIO SETUP GPS SIM > RESET

1. Selec t RESET. The radio asks for confirmation.

2. Select YES to reset the radio and return to the menu.

RESET RADIO ARE YOU SURE > YES NO

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

Page 21

Section 3 - Radio Setup Menu (RADIO SETUP)

Hold down CALL/MENU then scroll down and select RADIO SETUP. Press ENT or push the rotary knob to show the RADIO SETUP menu options.

Sections 1-3 and 1-4 explain how to navigate around the menu and enter, save and change data.

3-1 The Radio Setup Menu Optio ns (RADIO SETUP)

UIC (721US only)

CH NAME

RING VOLUME

KEY BEEP

INT SPEAKER

WATCH MODE

WX ALERT (721US only)

COM PORT

BARO SENSOR

TEMPERATURE

HAPPY FISH

Select the channel bank (721US only) See Section 3-2.

Edit or delete channel names.

See Section 3-3.

Set the volume level of the incoming call notiﬁ cation beeps.

See Section 3-4.

Set the volume level of the beeps.

See Section 3-4.

Turn the radio’s internal speakers ON or OFF.

See Section 3-5.

Select Dual or Tri watch scanning.

See Section 3-6.

Turn the WX Alert scanning mode ON or OFF. (721US only) See Section 3-7.

Select NMEA or NAVBUS protocol for communications between the radio and any other instruments.

See Section 3-8.

Select the barometric units, calibrate the sensor, turn the display ON or OFF.

See Section 3-9.

Select the temperature units, calibrate the sensor.

See Section 3-10.

Select the HAPPY FISH alarm to be ON or OFF.

See Section 3-11.

3-2 Select the Channe l Bank (UIC)

721US only.

There is a choice of three channel banks; USA, International, or Canadian (see Appendix C for details).

1. Select RADIO SETUP.

RADIO SETUP > UIC CH NAME RING VOLUME

UIC > USA INT’L CANADA

2. The cursor is at UIC. Press ENT or push the rotary knob to display the list of channel banks.

3. Select the channel bank to use then press ENT or push the rotary knob to conﬁ rm the setting and return to the menu.

21Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual

Page 22

3-3 Change Channel Na mes (CH NAME)

The channel charts are listed in Appendix C with their default name tags. CH NAME gives you the option to edit or delete the channel name tags displayed on the screen.

RADIO SETUP > CH NAME RING VOLUME KEY BEEP

EDIT CH NAME TELEPHONE

CH NAME 01

TELEPHONE

SAVE CH NAME PHONE1 > YES NO

TELEPHONE > EDIT DELETE

1. Select RADIO SETUP, then CH NAME.

2. Use CH + or CH - to step through the channels with their names until you see the channel name you want to change, then press ENT or push the rotary knob. In this example, the channel name TELEPHONE associated with channel 01 is being changed to PHONE1.

3. Select EDIT and press ENT or push the rotary knob to edit the existing name tag. Enter the new name over the existing name. It can be a maximum of 12 characters.

To delete the channel name, just select DELETE then press ENT or push the rotary knob.

4. Press ENT or push the rotary knob (repeatedly if necessary) to display the YES/NO conﬁ rmation.

5. Press ENT or push the rotary knob to conﬁ rm the new channel name tag or the deletion, then press ESC to return to the menu.

3-4 Ring and Bee p Volume (RING VOLUME) and (KEY BEEP)

Set the volume level of the incoming signal beeps (RING VOLUME) and/or the error and warning beeps (KEY BEEP) as follows:

RADIO SETUP > CH NAME RING VOLUME KEY BEEP

RING VOLUME > HIGH LOW

KEY BEEP > HIGH LOW OFF

1. Select RADIO SETUP, then RING VOLUME or KEY BEEP as appropriate.

2. Select a HIGH or LOW volume. (You can turn the beeps oﬀ completely by selecting KEY BEEP then OFF.)

3. Press ENT or push the rotary knob to conﬁ rm the new volume setting and return to the menu.

3-5 Internal Speake r Connections (INT SPEAKER)

Switch the radio’s internal speaker ON or OFF. (The external speaker is always ON if a speaker is plugged into the external speaker jack.)

RADIO SETUP RING VOLUME KEY BEEP > INT SPEAKER

INT SPEAKER > ON OFF

1. Select RADIO SETUP, then INT SPEAKER.

2. Select ON or OFF then press ENT or push the rotary knob to conﬁ rm the setting and return to the menu.

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

Page 23

3-6 Set the Priorit y Channel (WATCH MODE)

If you have the 721EU, watch mode is similar to a dual watch, scanning between the priority channel and the working channel. CH16 is the priority channel.

If you have the 721US and are operating on USA or Canadian channel banks, you can set the priority channel to cover both CH16 and CH09 as well as the working channel, as follows:

RADIO SETUP KEY BEEP INT SPEAKER > WATCH MODE

WATCH MODE > ONLY 16CH 16CH+9CH

1. Select RADIO SETUP, then WATCH MODE.

2. Select ONLY 16CH for dual watch mode, or 16CH+9CH for tri watch mode.

3-7 Weather Aler t (WX ALERT)

721US only.

The NOAA provides several weather forecast channels on USA and Canadian channel banks. If severe weather such as storms or hurricanes are forecast, the NOAA broadcasts a weather alert on 1050 Hz. You can set up the radio to pick up weather alerts, as follows:

1. Select RADIO SETUP, then WX ALERT.

2. Select ON then press ENT or push the rotary

RADIO SETUP INT SPEAKER WATCH MODE > WX ALERT

WX ALERT ON > OFF

knob to conﬁ rm the setting and return to the menu. (If you select OFF, the alarm won’t sound when there’s a weather alert.)

3. When a weather alert is broadcast, the alarm will sound. Press any key to hear the weather alert voice message.

3-8 NMEA or NAVBUS protocol (COM PORT )

You can add the radio to a group of instruments using NMEA or NAVBUS protocol.

NAVBUS is automatically activated when present, so that data such as barometric pressure and history, temperature, DSC polling positions and distress data are available to any other Northstar instruments using NAVBUS. However, the barometric and temperature readings from the radio can be turned OFF if you prefer to use the readings from a diﬀ erent instrument.

Select your GPS data source to come from either NMEA or NAVBUS as follows:

3-8-1 NMEA GPS data source (GPS SOURCE)

RADIO SETUP WATCH MODE WX ALERT > COM PORT

COM PORT NMEA > GPS SOURCE BARO & TEMP

GPS SOURCE > NMEA NAVBUS

GPS SOURCE NMEA > ON OFF

1. Select RADIO SETUP, then COM PORT.

NMEA CHECKSUM > ON OFF

2. Select GPS source, then select NMEA.

3. The cursor is at ON. Press ENT or push the rotary knob to conﬁ rm the setting and show the CHECKSUM option.

4. CHECKSUM ON is the usual setting. The cursor is at ON. Press ENT or push the rotary knob to conﬁ rm the setting and return to the menu.

23Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual

Page 24

3-8-2 NAVMAN GPS data source (GPS SOURCE)

RADIO SETUP WATCH MODE WX ALERT > COM PORT

COM PORT NMEA > GPS SOURCE BARO & TEMP

GPS SOURCE NMEA > NAVBUS

1. Select RADIO SETUP, then COM PORT.

2. Select GPS source, then select NAVBUS.

3. The cursor is at ON. Press ENT or push the rotary knob to conﬁ rm the setting and return to the menu.

GPS SOURCE NAVBUS > ON OFF

3-8-3 Use the 721 as barometric pressu re and temperature da ta source (BARO & TEMP)

RADIO SETUP WATCH MODE WX ALERT > COM PORT

COM PORT NMEA GPS SOURCE > BARO & TEMP

BARO & TEMP > ON OFF

1. Select RADIO SETUP, then COM PORT.

2. Select BARO & TEMP.

3. The cursor is at ON. Select ON to have the radio provide the barometric and temperature data to other instruments connected. Select OFF to have another instrument to act as the source of this data.

3-9 Barometric Displ ays (BARO SENSOR)

A barometric sensor in the microphone measures air pressure changes, enabling the radio to provide three useful aids towards weather prediction and fishing conditions, particularly when you’re close to large land masses. (See the information on the Happy Fish icon in Sec tion 1.5.) The radio can show:

• a weather icon to indicate five different conditions (SUNNY, PARTLY CLOUDY, CLOUDY, RAINY, SNOW). The local air pressure trends combined with the local temperature determines which weather icon is displayed. (NOTE: In open ocean conditions the weather icon can be less accurate than when close to large land masses.)

• a digital readout of air pressure (in mb or in/Hg).

• a graphical display of barometric pressure changes over the past consecutive 24 hours. Barometric data is maintained even if the radio is switched

off.

NOTE: If the vessel Batter y Master is turned OFF, the BARO history is erased.

3-9-1 Set the Barometric Unit s (BARO UNITS)

RADIO SETUP WX ALERT COM PORT > BARO SENSOR

BARO SENSOR > BARO UNITS BARO DISPLY BARO CAL.

1. Select RADIO SETUP, then BARO SENSOR.

2. The cursor is at BARO UNITS. Press ENT or press the rotary knob.

3. The cursor is at MILLIBARS. Press ENT or press the rotary knob to show barometric pressure in MILLIBARS or select INCHES to show barometric pressure in inches of mercury.

BARO UNITS > MILLIBARS INCHES

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

Page 25

3-9-2 Switch the Barometric Di splay ON or OFF (BARO DISPLY)

RADIO SETUP WX ALERT COM PORT > BARO SENSOR

BARO SENSOR BARO UNITS > BARO DISPLY BARO CAL.

1. Select RADIO SETUP, then BARO SENSOR.

2. Select BARO DISPLY.

3. The cursor is at LCD OFF. Press ENT or press the rotary knob to switch OFF the barometric display on the base unit, or select LCD ON to show the barometric display on the base unit.

IMPORTANT: LCD OFF is the default. This minimises the current drain of the standby vessel battery to about

3mA average. If the barometric display is set to LCD ON the current drain is continuous at about 85mA.

BARO DISPLY > LCD OFF LCD ON

3-9-3 Calibrate the Barome tric Sensor (BARO CAL.)

The barometric functions and icons work best when calibrated to local conditions. The operating range is from 960mb to 1060mb.

RADIO SETUP WX ALERT COM PORT > BARO SENSOR

BARO SENSOR BARO UNITS BARO DISPLY > CAL

CAL MODIFY? > ± 0.00 In-Hg PRESS ENT

1. Select RADIO SETUP, then BARO SENSOR.

2. Select BARO CAL. then change the setting to match the reading on an accurate instrument nearby or the reading given by a local weather station.

3-10 Temperature Di splay (TEMPERATURE)

A temperature sensor in the microphone measures air temperature changes.

3-10-1 Set the Temperature Un its (UNITS)

RADIO SETUP COM PORT BARO SENSOR > TEMPERATURE

TEMPERATURE > UNITS CAL.

1. Select RADIO SETUP, then TEMPERATURE

2. The cursor is at UNITS. Press ENT or press the rotary knob.

3. The cursor is at ºC. Press ENT or press the rotary knob to display the temperature in ºC (Celsius) or select ºF to show the temperature in Fahrenheit.

TEMP SENSOR > ˚C ˚F

3-10-2 Calibrate the Tempe rature Reading (CAL .)

The temperature sensor works best when calibrated to local conditions.

RADIO SETUP COM PORT BARO SENSOR > TEMPERATURE

TEMPERATURE > UNITS CAL.

1. Select RADIO SETUP, then TEMPERATURE.

2. Select CAL. then change the setting to match the reading on an accurate instrument nearby or the reading given by a local weather station.

CAL MODIFY? > ± 0.00 In-Hg PRESS ENT

25Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual

Page 26

Section 4 - DSC SETUP Menu

A valid user MMSID must be entered to access the DSC functions. If you don’t have a user MMSID, see Appendix D.

Hold down CALL/MENU then scroll down and select DSC SETUP. Press ENT or push the rotary knob to show the following DSC SE TUP menu options.

Sections 1.3 and 1.4 explain how to navigate around the menu and enter, save and change data.

4-1 DSC SETUP Menu Options

USER MMSID

GROUP SETUP

INDIV REPLY

ATIS MMSID

ATIS FUNC

DSC FUNC

LL REPLY

Check your user MMSID. See section 4.2. To enter your user MMSID for the ﬁ rst time, see Section 7-9.

Enter or change the name and/or details of a group.

See section 4.3.

Choose an automatic or manual response to calls (721US only). See section 4.4.

Enter or change your ATIS MMSID (721EU only). See section 4.5.

Enable/disable the ATIS function (VHF 721EU). See section 4.5.

Turn the DSC operation ON or OFF.

See section 4.6.

Select the type of response to an LL polling request.

See section 4.7.

4-2 Check Your User MMSID (USER MMSID)

You can display and read your user MMSID at any time.

1. Select DSC SETUP.

2. The cursor is at USER MMSID. Press ENT or push the rotary knob.

3. The LCD shows your user name and MMSID.

4-3 Maintain Your Gr oups (GROUP SETUP)

Use GROUP SETUP to create, edit, or delete 1, 2, or 3 groups of frequently called people stored in alphanumeric order. A group MMSID always starts with 0.

4-3-1 Create a Group (GROUP SETUP)

1. Select DSC SETUP, then GROUP SETUP.

2. If this is the FIRST TIME that you’re entering a group name, a line of nine zeros appears. Otherwise, any existing group names are displayed. Press ENT or push the rotary knob to display the input screen.

3. Enter the group name along the dashed line. The group name can be alphanumeric. Press ENT or push the rotary knob to conﬁ rm each correct entry and to move to the next digit. When you are ﬁ nished, press ENT or push the rotary knob repeatedly until the cursor moves to the MMSID line.

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DSC SETUP USER MMSID > GROUP SETUP INDIV REPLY

GROUP SETUP > MANUAL NEW 000000000

GROUP NAME –––––––––––– GROUP MMSID 0––––––––

FISHER1 012345678 > STORE CANCEL

If you make an error, select < and press ENT to backup and correct the entry (721US) or CLR and ENT

(721EU).

4. Enter the group MMSID. The ﬁ rst number is always 0. Press ENT or push the rotary knob to conﬁ rm the entry.

5. The group name and group MMSID are shown in a conﬁ rmation screen. Press ENT or push the rotary knob to store the details and return to the GROUP SETUP screen.

4-3-2 Edit Group Name or Grou p MMSID

GROUP SETUP MANUAL NEW > FISHER1 FRIENDS1

FISHER1 > EDIT DELETE

EDIT NAME > FISHER1 EDIT MMSID 012345678

FISHER2 012345678 > STORE CANCEL

1. Select DSC SETUP, then GROUP SETUP. The existing group names are displayed. Select the group name that you want to edit.

2. The cursor is at EDIT. Press ENT or push the rotary knob to show the group name details. The cursor is at the ﬁ rst character of the group name.

3. Edit the new name or, to edit only the MMSID, press ENT or push the rotary knob repeatedly until the cursor moves to the MMSID line.

4. When you are ﬁ nished, press ENT or push the rotary knob (repeatedly if necessary) to display the next screen.

5. Press ENT or push the rotary knob to store the changes and return to the GROUP SETUP screen.

4-3-3 Delete a Group

GROUP SETUP MANUAL NEW > FISHER2 FRIENDS1

FISHER2 EDIT > DELETE

1. Select DSC SETUP, then GROUP SETUP.

2. Select the group that you want to delete.

3. Select DELETE and press ENT or press the rotary knob. The radio asks for conﬁ rmation.

4. Press ENT or push the rotary knob to delete the group and return to the GROUP SETUP screen.

DELETE GROUP FISHER2 > YES NO

4-4 Respo nse to Individual Calls (INDIV REPLY)

721US only.

You can respond to incoming individual calls with an automatic response or with a manual response.

An automatic response sends an acknowledgement then sets the request link channel, ready for a

27Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual

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conversa

tion.

A manual response asks if you want to acknowledge the call, and then asks if you want to converse with the caller.

DSC SETUP USER MMSID GROUP SE TUP > INDIV REPLY

INDIV REPLY > AUTO MANUAL

1. Select DSC SETUP, then select INDIV REPLY.

2. The cursor is at AUTO. Press ENT or press the rotary knob for an automatic response, or select MANUAL for a manual response.

4-5 ATIS MMSID & ATIS Functionality

721EU only.

You MUST enter your ATIS MMSID to access ATIS functionality if you are navigating inland waterways within Europe. ATIS sends a digital message anytime that you release the PTT key. Inland waterways rules require 1 W Tx power on Channels 06, 08, 10, 11, 12, 13, 14, 15, 17, 71, 72, 74, and 77.

4-5-1 Enter or Edit Your ATIS MMSID

DSC SETUP GROUP SE TUP INDIV REPLY > ATIS MMSID

ATIS MMSID 923456789 > STORE CANCEL

INPUT ATIS MMSID 9––––––––

INPUT ATIS MMSID > STORE CANCEL

INPUT AGAIN ATIS MMSID 9––––––––

To enter or edit your ATIS MMSID:

1. Select DSC SETUP, then ATIS MMSID.

2. If this is the FIRST TIME that you are entering your ATIS MMSID, a dashed line appears. Enter your ATIS MMSID along the dashed line. An ATIS MMSID always starts with the number 9. Press ENT or push the rotary knob to conﬁ rm each correct entry and to move to the next digit.

If you make an error, press CH - until < appears, then press ENT or push the rotary knob to backup and

correct the entry.

If you’re editing an existing ATIS MMSID, this will be displayed. Make the required changes.

3. Press ENT or push the rotary knob to store your ATIS MMSID.

4. Enter your ATIS MMSID again as a password check, then press ENT or push the rotary knob to permanently store the ATIS MMSID and return to the menu.

You can view your stored ATIS MMSID at anytime by selecting ATIS MMSID in the main menu.

4-5-2 Enable ATIS Functionali ty (ATIS FUNC)

721EU only.

ATIS functionality will operate only after the ATIS MMSID has been entered (see previous section).

1. Select DSC SETUP, then ATIS FUNC.

2. The cursor is at ON. Select ENT or push the rotary k nob to enable the ATIS functionality and automatically disable DSC functionality. The ATIS annunciator appears on the screen.

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DSC SETUP INDIV REPLY ATIS MMSID > ATIS FUNC

ATIS FUNC > ON OFF

It’s not possible to have both ATIS ON and DSC ON simultaneously. When you enable one, the other will turn OFF. If DSC and ATIS are both OFF, you must turn DSC ON for normal DSC operation.

The annunciator on the LCD shows you the current mode: if the DSC annunciator is shown, DSC is operational; if the ATIS annunciator is shown, ATIS is operational.

4-6 DSC Funct ionality (DSC FUNC)

DSC functionality can be disabled but this is not recommended.

DSC SETUP GROUP SE TUP INDIV REPLY > DSC FUNC

DSC FUNC > ON OFF

1. Select DSC SETUP, then DSC FUNC.

2. The cursor is at ON. Press ENT or push the rotary knob to enable the DSC functionality and automatically disable ATIS functionality. The DSC annunciator appears on the screen.

It’s not possible to have both ATIS ON and DSC ON simultaneously. When you enable one, the other will turn OFF. If DSC and ATIS are both OFF, you must turn DSC ON for normal DSC operation.

The annunciator on the LCD shows you the current mode: if the DSC annunciator is shown, DSC is operational; if the ATIS annunciator is shown, ATIS is operational.

4-7 Response Type to LL Polling Ca lls (LL REPLY)

You can set up the radio to respond to an LL polling request in one of three ways:

AUTO automatically replies to an incoming LL polling request from any of your buddies.

MANUAL reply manually or ignore to each incoming LL polling request from your buddies.

OFF ignores all incoming LL polling requests. from your buddies.

DSC SETUP INDIV REPLY DSC FUNC > LL REPLY

LL REPLY > MANUAL AUTO

OFF

1. Select DSC SETUP, then LL REPLY.

2. Select your mode of response and press ENT or push the rotary knob to conﬁ rm.

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Section 5 - Send and Receive DSC Calls

A valid user MMSID must have been entered to access the DSC functions. If you don’t have a user MMSID, see Appendix D.

Press CALL/MENU to show the DSC CALL menu. This shows the different types of DSC call that you make.

Sections 1.3 and 1.4 explain how to navigate around the menu and enter, save and change data.

5-1 What is DSC?

DSC (Digital Selective Calling) is a semi-automated method of establishing VHF, MF, and HF radio calls. It has been designated as an international standard by the IMO (International Maritime Organization) and is part of the GMDSS (Global Maritime Distress and Safety System).

Currently, you are required to monitor Distress Channel 16, but DSC will eventually replace listening watches on distress frequencies and will be used to broadcast routine and urgent maritime safety information.

DSC enables you to send and receive calls from any vessel or coast station that is equipped with DSC functionality, and within geographic range. Calls can be categorised as distress, urgency, safety, or routine, and DSC selects a working channel automatically.

5-2 The DSC CALL Menu Optio ns

Make a routine, safety, urgency or distress call to a

INDIVIDUAL

LAST CALL

GROUP

ALL SHIPS

CALL LOG

DIST LOG

LL REQUEST

ROUTINE

SAFETY

URGENCY

DISTRESS

URGENCY

SAFETY

ROUTINE

DISTRESS

buddy or another individual.

See Section 5-3.

Show the details of the most recent incoming call.

See Section 5-4.

Make a call to one of your three groups.

See Section 5-5.

Make a urgency, safety, routine, or distress call to All Ships,

See Section 5-6.

Show the details of the 20 most recent incoming calls.

See Section 5-7.

Show the details of the 10 most recent distress calls. See Section 5-8.

Request the LL position of a buddy.

See Section 5-9.

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5-3 Call an Individu al (INDIVIDUAL)

INDIVIDUAL > ROUTINE

SAFETY URGENCY

ROUTINE > MANUAL NEW BUDDY1 BUDDY2

MANUAL MMSID 0––––––––

012345678 INDIVIDUAL ROUTINE > SET CHANNEL

012345678 INDIVIDUAL ROUTINE > SEND?

12345678 INDIVIDUAL ROUTINE CALLING...

012345678 INDIVIDUAL ROUTINE WAITING ACK

INDIV ACK 012345678 PRESS PTT ESC –> EXIT

You can call anyone who has a radio with DSC functionality. You can set the priority level of the DSC call to routine, safety, urgency, or distress. Choose:

• ROUTINE to make a routine call

• SAFET Y to send safety information

• URGENCY only when there’s a serious situation or problem that could lead to a distress situation

• DISTRESS only when there’s a distress situation.

1. Press CALL/MENU to enter the DSC CALL menu, then select INDIVIDUAL to call another person.

2. The cursor is at ROUTINE. Press ENT or press the rotary knob to make a routine call or select to another priority level.

3. The cursor is at MANUAL NEW. Press ENT or press the rotary knob to call a person who’s not in your buddy list; otherwise select the name of your buddy.

If you selected MANUAL NEW, enter the user MMSID and then press ENT or push the rotary knob.

4. Select the working channel and press ENT or press the rotary knob. (NOTE: If you’re making a distress call, the radio goes to CH16 automatically.) Duplex channels can’t usually be called and are automatically eliminated from the suggested call list. If the call is to a Coast Station, the radio will recognize this and select the correct channel.

5. The radio summarizes the call details and asks for conﬁ rmation to send the call (SEND?). Press ENT or push the rotary knob to send the call. The TX annunciator is displayed on the screen while the DSC call is being sent.

6. If the call is acknowledged (ACK), press PTT to talk. If there’s no reply to a routine call, try again (see Section 5-3-1).

5-3-1 Retry a Ro utine Call

VHF721 SEND AGAIN? > YES CANCEL

1. If there’s no reply to your call after one minute (UNABLE TO ACKNOWLEDGE) the radio asks if you want to retry the call (SEND AGAIN?).

2. Select YES and press ENT or push the rotary knob to retry the call. If the call still can’t be placed, the radio returns to normal operation.

5-3-2 Acknowledge an Ind ividual Incoming Cal l

RCV: INDIV 012345678 ENTER –> ACK ESC –> EXIT

The Explorer 721EU requires the operator to manually send an acknowledgement to the requesting radio. Press ENT or push the rotary knob to send an acknowledgement or press ESC to cancel.

The Explorer 721US automatically sends an acknowledgement to the requesting radio within 10 seconds of receiving the call.

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5-4 Call the Mo st Recent Caller (LAST CALL)

DSC CALL INDIVIDUAL > LAST CALL GROUP

EXPLORER 721 INDIVIDUAL ROUTINE 10:22AM LOC

EXPLORER 721 INDIVIDUAL ROUTINE > SET CHANNEL

EXPLORER 721 INDIVIDUAL ROUTINE > SEND?

This facility is useful and used frequently.

1. Press CALL/MENU to enter the DSC CALL menu. LAST CALL is automatically selected. Press ENT or push the rotary knob to display the contact details of the most recent incoming call.

2. Select the working channel. Duplex channels can’t usually be called and are automatically eliminated from the suggested call list. If the call is to a Coast Station, the radio will recognize this and select the correct channel.

3. The radio summarizes the call details and asks for conﬁ rmation to send the call (SEND?). Press ENT or push the rotary knob to send the call, and continue as explained in Section 5-3.

5-5 Call a Group (GROUP)

DSC CALL INDIVIDUAL LAST CALL > GROUP

1. Press CALL/MENU to enter the DSC CALL menu, then select GROUP. The radio displays the names of your groups.

2. Select the group that you want to call (the Group MMSID must be set before making the call). Then set the channel and continue as explained in Section 5-3.

SELECT GROUP > RD GROUP GROUP #2 GROUP#3

RD GROUP 055554444 ROUTINE > SET CHANNEL

EXPLORER 721 INDIVIDUAL ROUTINE > SEND?

5-6 Call All S hips (ALL SHIPS)

DSC CALL LAST CALL GROUP > ALL SHIPS

ALL SHIPS > URGENCY SAFETY ROUTINE

ALL SHIPS URGENCY > YES NO

1. Press CALL MENU to enter the DSC CALL menu, then select ALL SHIPS.

2. The priority is set automatically to URGENCY. but you can change the priority level of the DSC call to routine, safety, urgency, or distress. Choose:

•

URGENCY only when there’s a serious situation or problem that could lead to a distress situation

• SAFET Y to send safety information to all other vessels in range

• ROUTINE to make a routine call to all vessels (721US only)

• DISTRESS only when there’s a distress situation

3. Select the working channel and press ENT or press the rotary knob. (NOTE: If you’re making a distress call, the radio goes to CH16 automatically.) Duplex channels can’t usually be called and are automatically eliminated from the suggested call list. If the call is to a Coast Station, the radio will recognize this and

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

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select the correct channel.

3. The radio asks for conﬁ rmation of the ALL SHIPS call (SEND?). Press ENT or push the rotary k nob to select YES and send the call, and continue as explained in Section 5-3.

5-7 Call using the Call Lo g (CALL LOG)

DSC CALL GROUP ALL SHIPS > CALL LOG

VHF721 INDIVIDUAL

ROUTINE > SEND?

11 VHF721 INDIVIDUAL ROUTINE 10:45PM LOC

VHF721 > CALL BACK DELETE SAVE

VHF721 INDIVIDUAL ROUTINE > SET CHANNEL

The Call Log contains the contact details for the 20 most recent incoming calls, so you call any of them again quickly.

1. Press CALL/MENU to enter the DSC CALL menu, then select CALL LOG.

The radio displays the contact details for the most recent incoming call as the ﬁ rst entry (01) in the call

log.

2. Select the desired contact details. In this example, the contact details for the 11th most recent call are displayed.

To save this contact in your buddy list, select SAVE and press ENT or push the rotary knob. Enter a name

for this contact. The logged MMSID is automatically displayed.

3. Press ENT or push the rotary knob to conﬁ rm the call back, then set the working channel and press ENT or push the rotary knob to send the call. Continue as explained in Section 5-3.

5-8 Call usin g the Distress Log (DIST LOG)

The Distress Log contains the data for the 10 most recent relayed distress calls, so that you can call any of them quickly. Always try to make voice contact on CH16 ﬁ rst, as follows:

1. Press CALL/MENU to enter the DSC CALL menu, then select DIST LOG.

2. The most recently received distress call is the ﬁ rst entry (01) in the Distress Log. Select the entry that you want to call. The details are displayed over two screens that alternate every 1.5 seconds; the ﬁ rst screen shows the location and name or MMSID of the vessel in distress, the second screen shows the nature of the emergency (if speciﬁ ed) and the MMSID of the vessel that relayed the distress call.

3. Set the channel and continue as explained in Section 5-3.

DSC CALL ALL SHIPS CALL LOG > DIST LOG

VHF721 INDIVIDUAL ROUTINE > SET CHANNEL

02 10:03 UTC VHF721 (xxx) 82º50. N 27º45. W

VHF721 INDIVIDUAL ROUTINE > SEND?

DISTRESS RELAY PIRACY 987654321

VHF721 > CALL BACK DELETE SAVE MMSID

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5-9 Request th e LL Position of a Buddy (LL REQUEST)

DSC CALL CALL LOG DIST LOG > LL REQUEST

channel name SAM LL REQUEST AWAITING ACK

LL REQUEST > SAM VHF721 BUDDY #3

SAM LL REQUEST > SEND?

SAM LL REQUEST

CALLING...

1. Press CALL/MENU to enter the DSC CALL menu, then select LL REQUEST.

2. Select the buddy whose LL position you want to request then press ENT or push the rotary knob to send the request.

3. The working channel name is displayed while the radio waits for an acknowledgement from your buddy. Continue as explained in Section 5-3-1. If there’s no reply after 1 minute the radio asks if you want to retry. Continue as explained in Section 5-3-2.

5-9-1 Track Your Buddy (TRACK BUDDY)

Use the TRACKLIST option to select the buddy (or buddies) whose position you want to track, specify the time interval through the INTERVAL option and then start the track. Alternatively, if the buddy and time

are already set to your preference, just start tracking.

Selec t Your Buddy as follows:

DSC CALL DIST LOG LL REQUEST > TRACK BUDDY

1. Press CALL/MENU to enter the DSC CALL menu, then select TRACK BUDDY.

Select SET BUDDY then select the buddy you want to track. You can set a maximum of 3 buddies to track.

3. Select ON to track that buddy or OFF to not track that buddy, and press ENT or push the rotary knob to conﬁ rm. (Repeat for the other two buddies if necessary.)

To delete a buddy from the tracklist, just scro ll to the buddy’s name and press ENT or push the rotary knob. Selec t YES to confirm, then press ENT or push the rotary knob agai n.

Set the Time Interval as follows:

TRACK BUDDY START TRACK > SET BUDDY TRACKLIST

SET BUDDY > BUDDY1 OFF BUDDY2 ON BUDDY3 OFF

SET BUDDY BUDDY1 > ON OFF

DSC CALL DIST LOG LL REQUEST > TRACK BUDDY

TRACK BUDDY > INTERVAL

INTERVAL > 15 MINUTES 30 MINUTES 1 HOUR

1. Press CALL/MENU to enter the DSC CALL menu, then select TRACK BUDDY.

Select INTERVAL, then select the desired time interval. Press ENT or push the rotary knob o conﬁ rm.

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Start Tracking as follows:

DSC CALL DIST LOG LL REQUEST > TRACK BUDDY

TRACK BUDDY > START TRACK SET BUDDY TRACKLIST

START TRACK BUDDY1 OFF BUDDY2 ON BUDDY3 OFF

START TRACK > YES NO PRESS ENTER

1. Press CALL/MENU to enter the DSC CALL menu, then select TRACK BUDDY.

2. Select START TRACK, then select YES. The START TRACK display changes to STOP TRACK. To stop tracking at any time, just select YES.

As soon as you start tracking, an LL Request is sent immediately on CH70 and your radio waits for

acknowledgement of the (ﬁ rst) buddy’s LL position to be displayed on your LCD.

Each of the selected buddies is polled for their LL positions at regular time intervals. When information

is received, a friendly ringtone is sounded and the position is shown on the LCD. Press any key to cancel the display.

An LL position that is received is not stored in your radio’s log, but is broadcast over NAVBUS to the

chartplotters. Press any key to acknowledge or wait for the automatic 20 second timeout.

NOTE: The Explorer 721 can receive and display the LL position data at normal or enhanced resolution.

5-10 Receive an Al l Ships Call (RCV: ALL SHIP)

RCV: ALL SHIP

When you receive notiﬁ cation of an ALL SHIP call, press any key to cancel the alert.

priority VHF721

The priority level and the user MMSID are displayed on the LCD. If the radio recognises

ESC –> EXIT

No acknowledgement is required. Press PTT to initiate voice contact on CH16 and then switch to a working channel.

The call data is stored in the Call Log (see Section 5-7).

The radio automatically selects CH16.

the user MMSID as one of your buddies, the buddy’s name is displayed in place of the user MMSID.

5-11 R eceive an Individual Cal l (RCV: INDIV)

RCV: INDIV VHF721 ENTER –> ACK ESC –> EXIT

INDIV ACK VHF721 PRESS PTT ESC –> EXIT

If the radio recognises the user MMSID as one of your buddies, the buddy’s name is displayed in place of the user MMSID.

The 721US responds automatically but the 721EU prompts you to press ENT or push the rotary knob to acknowledge the incoming call.

The caller should respond to your acknowledgement by making voice contac t on the designated channel. If this doesn’t happen, you can press PTT to initiate voice contact instead.

The call data is stored in the Call Log (see Section 5-7).

When you receive notiﬁ cation of an INDIV call,

press any key to cancel the alert.

The radio automatically selects the channel

designated in the incoming call. INDIV calls are almost always routine priority.

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5-12 Receive a Group Cal l (RCV: GROUP)

RCV: GROUP GP: RD GROUP VHF721 ROUTINE

You don’t need to send an acknowledgement. If desired, press PTT to initiate voice contact on the designated channel.

The call data is stored in the Call Log (see Section 5-7).

When you receive notiﬁ cation of a GROUP call, press any key to cancel the alert. The radio automatically selects the channel designated in the incoming call.

The priority level is always routine, and the group is identiﬁ ed on the screen. The group will be one of the three groups of frequently called people that you set up earlier (see Section 4-3).

5-13 Receive a Geograp hic Call (RCV: GEOGRAPH)

RCV: GEOGRAPH VHF721 10:34 UTC ESC –> EXIT

Monitor the working channel for an announcement from the calling vessel.

A geographic call is sent to all vessels within a speciﬁ c geographic boundary area.

When you receive notiﬁ cation of a GEOGRAPH call, press any key to cancel the alert. The radio automatically selects the channel designated in the incoming call.

The time and the user MMSID or name are displayed on the screen. If the radio recognises the user MMSID as one of your buddies, the buddy’s name is displayed in place of the user MMSID.

5-14 Receive a Polled Posi tion Call (RCV:POSITION)

RCV: POSITION BUDDY3 82º50.003'N 27º45.543'W

When you receive GPS position data from a buddy in response to your LL request (see Section 5-9), you’re recommended to make a written note of the position, especially if it’s a good ﬁ shing position.

If enhanced LL position information is available from your buddy, it’s shown on the LCD until the display changes.

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

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Section 6 - Distress Calls

A valid user MMSID must have been entered to access this DSC function. If you don’t have a user MMSID, see Appendix D.

IMPORTANT: This Northstar radio is designed to generate a digital maritime distress call to facilitate search and rescue. To be eﬀ ective as a safety device, this radio must be used only within the geographic range of a shore-based VHF marine Channel 70 distress and safety watch system. The geographic range may vary but under normal conditions is approximately 20 nautical miles.

6-1 Send a Distress Call

DISTRESS CALL > ABANDONING PIRACY OVER BOARD

DISTRESS CALL > PIRACY HOLD DISTRESS 2 SECONDS..

DISTRESS CALL SENT! WAIT.. PRESS ESC TO CANCEL...

1. Open the red cover labelled DISTRESS.

If time is available to specify the nature of the distress, go to step 2. Otherwise, go directly to step 3.

2. Press the DISTRESS key to display the following categories. Scroll to the category that describes your situation, then press ENT:

UNDEFINED

FIRE

FLOODING

COLLISION

GROUNDING

LISTING

SINKING

ADRIFT

ABANDONING

PIRACY

OVER BOARD

3. Hold down the DISTRESS key for about 3 seconds, until you see the distress call message (DISTRESS CALL SENT!) on the LCD. The whole display starts to ﬂ ash and beep loudly.

The distress call repeats ﬁ ve times continuously. It then repeats randomly every 3.5 to 4.5 minutes until

a distress acknowledgement (DISTRESS ACK) is received from a search and rescue authority or until you cancel the distress call manually.

The radio selects CH16 automatically so that you can hear any incoming voice contacts from search and

rescue authorities or other vessels within range.

Press ESC if you need to cancel the distress call. This is the only key that operates in distress mode.

6-2 Receive a Distre ss Acknowledgemen t (DISTRESS ACK)

The Coast Guard is the only agency allowed to send a Distress Acknowledgement (DISTRESS ACK).

When a distress acknowledgement is sent from the Coast Guard, your radio automatically cancels the distress mode transmissions and CH16 is selected.

Press PTT to talk with the Coast Guard.

37Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual

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6-2 Receive a Distres s Call (RCV: DISTRESS)

RCV: DISTRESS 123456789 FLOODING ESC –> EXIT

RCV: DISTRESS 10:34 UTC 82º50.003'N 27º45.543'W

The details are displayed over t wo screens that alternate every 1.5 seconds; the first screen shows the user MMSID and nature of the emergency (if specified), the second screen shows the time and the location (if specified). If the location and time aren’t specified, they’re replaced with sequences of 9s and 8s respectively.

The radio is capable of receiving enhanced LL position data if the vessel transmitting the distress call is sending this. This provides the position of the distressed vessel to within 60 f t (20 m).

An aler t sounds when a distress call (DISTRESS!)

is received. Press any key to cancel the alert. You don’t need to send an acknowledgement.

The radio automatically selects CH16 and

displays the details of the distress call on the screen. Press PTT to establish voice contact.

6-3 Receive a Distre ss Relay (RCV: DISTRESS RELAY)

RCV: DISTRESS RELAY 123456789 ESC –> EXIT

An alert sounds when a distress relay (DISTRESS RELAY) is received from an individual or from an All Ships transmission. Press any key to cancel the alert.

Try to make voice contact with the calling vessel. Maintain a listening watch on CH16 and standby to lend assistance.

6-3 Relay a Distr ess Call from the Distre ss Log (RELAY)

You can relay a Distress Call in your Distress Log to an Individual or to All Ships.

VHF721 DELETE SAVE MMSID > RELAY

RELAY > INDIV RELAY ALL RELAY

INDIV RELAY > MANUAL NEW BUDDY1 BUDDY2

1. Press CALL/MENU to enter the DSC CALL menu, then select DIST LOG (see Section 5.8).

2. The most recently received distress call Is the ﬁ rst entry (01) in the Distress Log. Select the distress call that you want to relay, then select RELAY.

3. Now select either:

• INDIV RELAY to relay the distress call to an individual and select MANUAL NEW if the person is not in your buddy list, other wise scroll to the name of your buddy. Press ENT or push the rotary knob. (If you selected MANUAL NEW, you need to enter the user MMSID then press ENT or push the rotary knob.)

• ALL RELAY to relay the distress call to All Ships then press ENT or push the rotary knob.

4. The radio automatically selects CH16 and displays the details of the distress call on the screen.

5. Press ENT or push the rotary knob to relay the Distress Call.

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

Page 39

Appendix A - Technical Specifications

Northsta r Explorer 721US and 721EU

GENERAL

Power Supply: 13.6 V DC.

Current drain: Transmit 6 A at 25 W Tx / 1.5 A at 1 W Tx

Current drain: Receive Less than 250 mA in standby

Baro sampling (radio oﬀ ): Less than 3 mA, 85 mA in active standby

Useable channels: International, USA, Canada, Weather (country speciﬁ c)

Mode: 16K0G3E (FM) / 16K0G2B (DSC)

Handset Works only with optional Explorer 701US or optional Explorer 701EU

PHYSICAL

LCD display (viewing): 40 (H) x 48 (W) mm

FSTN 4 x 12 character

Contrast control: Yes

Backlight control: Yes

Antenna connector: SO-239 (50 ohm)

Temperature Range: -15ºC to +50ºC

Waterproof: JIS-7

Dimensions: 161 (W ) x 75 (H) x 147 (D) mm - without bracket

Weight: 3.0 lbs (1.36 kg) without microphone

Frequency stability: +/- 10ppm

Frequency control: PLL

GPS/NMEA input: Yes

Comm. port: 4800 baud NMEA, 38400 baud NAVBUS

DSC: Yes

Rotary channel selector: Yes

FEATURES

Flush mounting kit: Yes

Dust cover: Yes

Local/Distant control: Yes

Position polling: Yes

Track Your Buddy: Yes

Group Call: Yes

Call logs: Yes - 20 individual and 10 distress

DSC USCG SC101: 721US

DSC Recreational Class S: Canada

DSC Class D: 721EU and Canada Commercial

Barometer, Temperature

and Happy Fish: Yes

39Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual

Page 40

Channel Naming: Yes

Tri watch, favorite channel scan: Yes

All scan: Yes

User programmable MMSID: Yes (User MMSID and ATIS (721EU)

MMSID and NAME directory: Yes - 20 numbers & group

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 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)

Adjacent CH selectivity: more than 70 db

Spurious response: more than 70 db

Intermodulation rejection ratio: more than 68 db

Residual Noise level: more than -40 db unsquelched

Audio output power: 2 W (with 8 ohm at 10% distortion)

4 W with 4 ohm external speaker

Compass safe distance: 1.5' (0.5 m)

Speciﬁ cations are subject to change without notice.

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

Page 41

Appendix B - Troubleshooting

1. The transceiver will not power up.

A fuse may have blown OR there is no voltage getting to the transceiver.

a) Check the power cable for cuts, breaks, or squashed sections.

b) After checking the wiring, replace the 7 Amp fuse (a spare fuse is supplied).

c) Check the battery voltage. This must be greater than 10.5 V.

2. The transceiver blows the fuse when the power is switched on.

The power wires may have been reversed.

a) Check that the red wire is connected to the positive battery terminal, and the black wire is connected

to the negative battery terminal.

3. The speaker makes popping or whining noises when the engine is running.

Electrical noise may be interfering with the transceiver.

a) Re-route the power cables away from the engine.

b) Add a noise suppressor to the power cable.

c) Use resistive spark plug wires and/or use an alternator whine ﬁ lter.

4. No sound from the external speaker.

a) Check that the external speaker cable is physically connected.

b) Check the soldering of the external speaker cable.

5. Transmissions are always on low power, even when high (HI) power is selected.

The antenna may be faulty.

a) Test the transceiver with a diﬀ erent antenna.

b) Have the antenna checked out.

6. Battery symbol is displayed.

The power supply is too low.

a) Check the battery voltage. This should be at least 10.5 V ± 0.5 V DC.

b) Check the alternator on the vessel.

7. No position information is displayed.

The GPS cable may faulty or the GPS setting may be incorrect.

a) Check that the GPS cable is physically connected.

b) Check the polarity of the GPS cable.

c) Check the baud rate setting of the GPS if applicable. The baud rate setting should be 4800 for NMEA

or 38400 for NAVBUS. Parity should be set to NONE.

41Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual

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Appendix C - VHF Marine Channel Charts

C.1 International ( EU-DSC ON)

EU countries have special channeling requirements and the radio is cloned to match the market requirements.

NOTE For assistance in und erstanding the Table, see notes

Transmitt ing

Channel

designator

60 156, 025 160,625 x x

01 156, 050 160,650 x x

66 156, 325 160,925 x x

07 156, 350 160,950 x x

08 156, 400 x

68 156, 425 156,425 x

69 156, 475 156,475 x x

11 156, 550 156,550 x

71 156, 575 156,575 x

12 156, 600 156,600 x

14 156, 700 156,700 x

74 156, 725 156,725 x

Notes

m), o)

h), i)

frequencies

MHz

Ship

stations

156,075 160,675 x x x

156,100 160,700 x x x

156,125 160,725 x x x

156,150 160,750 x x x

156,175 160,775 x x x

156,200 160,800 x x x

156,225 160,825 x x x

156,250 160,850 x x x

156,275 160,875 x x x

156,300 x

156,375 156,375 x x

156,450 156,450 x x

156,500 156,500 x x

156,525 156,525 Digital selective calling for distr ess, safety and calling

156,625 x

156,650 156,650 x x

156,675 156,675 x x

156,750 156,750 x x

156,775 x

Coast

stations

below. (WRC-2000)

Inter-

ship

Port operations

and ship movement

Single

frequency

Two

frequency

Public

corres-

pondence

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

Page 43

Transmitting

Channel

designator

16 156,800 156,800 DISTRESS, SAFETY AND CALLING

77 156,875 x

78 156,925 161,525 x x

19 156,950 161,550 x x

79 156,975 161,575 x x

20 157,000 161,600 x x

80 157,025 161,625 x x

21 157,050 161,650 x x

81 157,075 161,675 x x

27 157,350 161,950 x x

87 157,375 x

28 157,400 162,000 x x

88 157,425 x

AIS 1

AIS 2

Notes

m), o)

frequencies

MHz

Ship

stations

156,825 x

156,850 156,850 x x

156,900 161,500 x x x

157,100 161,700 x x x

157,125 161,725 x x x

157,150 161,750 x x x

157,175 161,775 x x x

157,200 161,800 x x x

157,225 161,825 x x x

157,250 161,850 x x x

157,275 161,875 x x x

157,300 161,900 x x x

157,325 161,925 x x x

161,975 161,975

162,025 162,025

Coast

stations

Inter-

ship

Port operations

and ship movement

Single

frequency

Two

Public

corres-

pondence

SPECIAL NOTES ON INTERNATIONAL CHANNEL USEAGE

Notes referring to the Table

General notes

The International mode is not legal for use in US or Canada Waters

a. Administrations may designate frequencies in the inter-ship, port operations and ship movement services

for use by light aircraft and helicopters to communicate with ships or participating coast stations in predominantly maritime support operations under the conditions speciﬁ ed in Nos. 51.69, 51.73, 51.74, 51.75,

51.76, 51.77 and 51.78. However, the use of the channels which are shared with public correspondence shall be subject to prior agreement between interested and aﬀ ected administrations.

b. The channels of the present Annex, with the exception of channels 06, 13, 15, 16, 17, 70, 75 and 76, may

also be used for high-speed data and facsimile transmissions, subject to special arrangement between interested and aﬀ ected administrations.

c. The channels of the present Annex, but preferably channel 28 and with the exception of channels 06,

13, 15, 16, 17, 70, 75 and 76, may be used for direct-printing telegraphy and data transmission, subject to special arrangement between interested and aﬀ ected administrations.

43Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual

Page 44

d. The frequencies in this Table may also be used for radiocommunications on inland waterways in accord-

ance with the conditions speciﬁ ed in No. 5.226. – 56 – 62238 IEC:2003(E)

e. Administrations having an urgent need to reduce local congestion may apply 12,5 kHz channel interleav-

ing on a non-interference basis to 25 kHz channels, provided:

– Recommendation ITU-R M.1084-2 shall be taken into account when changing to 12,5 kHz channels;

– it shall not aﬀ ect the 25 kHz channels of the present Annex maritime mobile distress and safety fre-

quencies, especially the channels 06, 13, 15, 16, 17, and 70, nor the technical characteristics mentioned in Recommendation ITU-R M.489-2 for those channels;

– implementation of 12,5 kHz channel interleaving and consequential national requirements shall be

subject to prior agreement between the implementing administrations and administrations whose ship stations or services may be aﬀ ected.

Speciﬁ c notes

f. The frequency 156,300 MHz (channel 06) (see No. 51.79 and Appendices 13 and 15) may also be used for

communication between ship stations and aircraft stations engaged in coordinated search and rescue operations. Ship stations shall avoid harmful interference to such communications on channel 06 as well as to communications between aircraft stations, ice-breakers and assisted ships during ice seasons.

g. Channels 15 and 17 may also be used for on-board communications provided the eﬀ ective radiated

power does not exceed 1 W, and subject to the national regulations of the administration concerned when these channels are used in its territorial waters.

h. Within the European Maritime Area and in Canada, these frequencies (channels 10, 67, 73) may also

be used, if so required, by the individual administrations concerned, for communication between ship stations, aircraft stations and participating land stations engaged in coordinated search and rescue and anti-pollution operations in local areas, under the conditions speciﬁ ed in Nos. 51.69, 51.73, 51.74, 51.75,

51.76, 51.77 and 51.78.

i. The preferred ﬁ rst three frequencies for the purpose indicated in Note a) are 156,450 MHz (channel

09),156,625 MHz (channel 72) and 156,675 MHz (channel 73).

j. Channel 70 is to be used exclusively for digital selective calling for distress, safety and calling.

k. Channel 13 is designated for use on a worldwide basis as a navigation safety communication channel,

primarily for intership navigation safety communications. It may also be used for the ship movement and port operations service subject to the national regulations of the administrations concerned.

l. These channels (AIS 1 and AIS 2) will be used for an automatic ship identiﬁ cation and surveillance system

capable of providing worldwide operation on high seas, unless other frequencies are designated on a regional basis for this purpose.

m. These channels may be operated as single frequency channels, subject to special arrangement between

interested or aﬀ ected administrations. ( WRC-2000)

n. The use of these channels (75 and 76) should be restricted to navigation-related communications only

and all precautions should be taken to avoid harmful interference to channel 16, e.g. by limiting the output power to 1 W or by means of geographical separation.

o. These channels may be used to provide bands for initial testing and the possible future introduction

of new technologies, subject to special arrangement between interested or aﬀ ected administrations. Stations using these channels or bands for the testing and the possible future introduction of new technologies shall not cause harmful interference to, and shall not claim protection from, other stations operating in accordance with Article 5. (WRC-2000)

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

Page 45

C.2 USA Chan nel Chart

CH SEND

01A 156.050 156.050

(MHz)

RECEIVE (MHz)

TRAFFIC TYPE SHIP

TO SHIP

Port Operations, Selected VTS Areas

Yes Yes PORT OPS/VTS

SHIP TO SHORE

NAME TAG

03A 4156.150 156.150 US Government, Coast Guard Yes Yes UNAUTHORIZED

05A 156.250 156.250

Port Operations, Selected VTS Areas

Yes Yes PORT OPS/VTS

06 156.300 156.300 Inter-ship Safety Yes No SAFETY

07A 156.350 156.350 Commercial Yes Yes COMMERCIAL

08 156.400 156.400 Commercial (inter-ship only) Yes No COMMERCIAL

09 156.450 156.450 Recreational Calling Channel Yes Yes CALLING

10 156.500 156.500 Commercial Yes Yes COMMERCIAL

11 156.550 156.550 Commercial, VTS in Selected Areas Yes Yes VTS

12 156.600 156.600

156.650 156.650 Intership Navigation Safety (bridge-

Port Operations, Selected VTS Areas

Yes Yes PORT OPS/VTS

Yes No BRIDGE COM

to-bridge), 1W with Power-up

14 156.700 156.700

RX Only 156.750 Environmental, RX Only ------ ------ ENVIROMENTAL

Port Operations, Selected VTS Areas

16 156.800 156.800 International Distress, Safety, and

Yes Yes PORT OPS/VTS

Yes Yes DISTRESS

Calling

156.850 156.850 State Controlled – 1W Only Yes Yes SAR

18A 156.900 156.900 Commercial Yes Yes COMMERCIAL

19A 156.950 156.950 Commercial Yes Yes COMMERCIAL

20 157.000 161.600 Port Operations, Canadian Coast

No Yes PORT OPS

Guard, Duplex

20A 157.000 157.000 Port Operations Yes Yes PORT OPS

21A 4157.050 157.050 U.S. Government, Canadian Coast

Yes Yes UNAUTHORIZED

Guard

22A 157.100 157.100 Coast Guard Liaison Yes Yes COAST GUARD

23A 4157.150 157.150 U.S. Government, Coast Guard Yes Yes UNAUTHORIZED

24 157.200 161.800 Public Correspondence, Marine

No Yes TELEPHONE

Operator

25 157.250 161.850 Public Correspondence, Marine

No Yes TELEPHONE

Operator

26 157.300 161.900 Public Correspondence, Marine

No Yes TELEPHONE

Operator

27 157.350 161.950 Public Correspondence, Marine

No Yes TELEPHONE

Operator

28 157.400 162.000 Public Correspondence, Marine

No Yes TELEPHONE

Operator

45Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual

Page 46

CH SEND

61A 4156.075 156.075 U.S. Government, Canadian Coast

63A 156.175 156.175 Port Operations, VTS in Selected

64A 4156.225 156.225 U.S. Government, Canadian

65A 156.275 156.275 Port Operations Yes Yes PORT OPS

66A 156.325 156.325 Port Operations Yes Yes PORT OPS

68 156.425 156.425 Boat Operations, Recreational Yes No SHIP - SHIP

69 156.475 156.475 Boat Operations, Recreational Yes Yes PLEASURE

71 156.575 156.575 Boat Operations, Recreational Yes Yes PLEASURE

72 156.625 156.625 Boat Operations, Recreational Yes No SHIP - SHIP

73 156.675 156.675 Port Operations Yes Yes PORT OPS

74 156.725 156.725 Port Operations Yes Yes PORT OPS

78A 156.925 156.925 Boat Operations, Recreational Yes No SHIP - SHIP

79A 156.975 156.975 Commercial Yes Yes COMMERCIAL

80A 157.025 157.025 Commercial Yes Yes COMMERCIAL

81A 4157.075 157.075 U.S. Government, Environmental

82A 4157.125 157.125 U.S. Government, Canadian Coast

83A 4157.175 157.175 U.S. Government, Canadian Coast

84 157.225 161.825 Public Correspondence, Marine

85 157.275 161.875 Public Correspondence, Marine

86 157.325 161.925 Public Correspondence, Marine

87 157.375 161.975 Public Correspondence, Marine

88 157.425 162.025 Public Correspondence, Marine

88A 157.425 157.425 Commercial, Intership Only Yes No COMMERCIAL

(MHz)

RECEIVE (MHz)

TRAFFIC TYPE SHIP

TO SHIP

SHIP TO SHORE

NAME TAG

Yes Yes UNAUTHORIZED

Guard

Yes Yes PORT OPS/VTS

Areas

Commercial Fishing

156.375 156.375 Commercial, bridge-to-bridge, 1W

Yes Yes UNAUTHORIZED

Yes No BRIDGE COM

with Power-up

156.525 156.525 Digital Selective Calling - DSC ------ ------ DSC

156.875 156.875 Port Operations –1W Only Yes Yes PORT OPS

Yes Yes UNAUTHORIZED

Protection Agency Operations

Yes Yes UNAUTHORIZED

Guard

Yes Yes UNAUTHORIZED

Guard

No Yes TELEPHONE

Operator

No Yes TELEPHONE

Operator

No Yes TELEPHONE

Operator

No Yes TELEPHONE

Operator

No Yes TELEPHONE

Operator

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

Page 47

WEATHER MHz TRAFFIC TYPE NAME TAG

Wx01 RX Only 162.550 NOAA WEATHER CHANNEL ------ ------ NOAA WX

Wx02 RX Only 162.400 NOAA WEATHER CHANNEL ------ ------ NOAA WX

Wx03 RX Only 162.475 NOAA WEATHER CHANNEL ------ ------ NOAA WX

Wx04 RX Only 162.425 NOAA WEATHER CHANNEL ------ ------ NOAA WX

Wx05 RX Only 162.450 NOAA WEATHER CHANNEL ------ ------ NOAA WX

Wx06 RX Only 162.500 NOAA WEATHER CHANNEL ------ ------ NOAA WX

Wx07 RX Only 162.525 NOAA WEATHER CHANNEL ------ ------ NOAA WX

Wx08 RX Only 161.650 CANADIAN WEATHER CHANNEL ------ ------ CANADA WX

Wx09 RX Only 161.775 CANADIAN WEATHER CHANNEL ------ ------ CANADA WX

Wx10 RX Only 163.275 NOAA WEATHER CHANNEL ------ ------ NOAA WX

SPECIAL NOTES ON USA CHANNEL USAGE

1. LOW POWER (1 W) only.

2. Receive Only.

3. LOW POWER (1 W) initially. Override to HIGH POWER by holding down H/L key before transmitting. Used normally in bridge-to-bridge communications.

4. Lightly Shaded Simplex channels 03A, 21A, 23A, 61A, 64A, 81A, 82A, and 83A cannot be lawfully used in U.S. waters unless special authorization is obtained from the U.S. Coast Guard. Not for use by the general public.

5. The letter “A” illuminated by the channel number indicates the USA channel is simplex. This same channel is always duplex when selecting International. There is no “A” reference for International channels. The letter “B” is only used for some Canadian “Receive Only” channels.

6. Channel 70 is designated for use exclusively for Digital Selective Calling (DSC), such as Distress, Safety, and Ship Calls. No voice communication is allowed on CH70.

47Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual

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C-3 CANADA Channel CHART

CH SEND

(MHz)

RECEIVE (MHz)

TRAFFIC TYPE SHIP

TO SHIP

SHIP TO SHORE

NAME TAG

01 156.050 160.650 Public Correspondence, Duplex No Yes TELEPHONE

02 156.100 160.700 Public Correspondence, Duplex No Yes TELEPHONE

03 156.150 160.750 Public Correspondence, Duplex No Yes TELEPHONE

04A 156.200 156.200 Canadian Coast Guard, SAR Yes Yes CANADIAN CG

05A 156.250 156.250 Port Operations, VTS in Selected

Areas

Yes Yes PORT OPS/VTS

06 156.300 156.300 Inter-ship Safety Yes No SAFETY

07A 156.350 156.350 Commercial Yes Yes COMMERCIAL

08 156.400 156.400 Commercial (inter-ship only) Yes No COMMERCIAL

09 156.450 156.450 Recreational Calling Channel Yes Yes CALLING

10 156.500 156.500 Commercial Yes Yes COMMERCIAL

11 156.550 156.550 Commercial, VTS in Selected Areas Yes Yes VTS

12 156.600 156.600 Port Operations, VTS in Selected

156.650 156.650 Intership Navigation Safety

14 156.700 156.700 Port Operations, VTS in Selected

156.750 156.750 Commercial – 1W Only Yes Yes COMMERCIAL

16 156.800 156.800 International Distress, Safety, and

156.850 156.850 State Controlled – 1W Only Yes Yes SAR

Areas

to-bridge) 1W with power-up

Areas

Calling

Yes Yes PORT OPS/VTS

(bridge-

Yes No BRIDGE COM

Yes Yes PORT OPS/VTS

Yes Yes DISTRESS

18A 156.900 156.900 Commercial Yes Yes COMMERCIAL

19A 156.950 156.950 Canadian Coast Guard Yes Yes CANADIAN CG

157.000 161.600 Canadian Coast Guard, Duplex– 1W

Only

No Yes CANADIAN CG

21 157.050 161.650 Port Operations, Duplex No Yes PORT OPS

21A 157.050 157.050 U.S. Government, Canadian Coast

Guard

Yes Ye s UNAUTHORIZED

21B RX Only 161.650 Port Operations, RX Only ------ ------ PORT OPS

22A 157.100 157.100 Canadian Coast Guard Liaison Yes Yes CANADIAN CG

23 157.150 161.750 Public Correspondence, Duplex No Yes TELEPHONE

24 157.200 161.800 Public Correspondence, Duplex No Yes TELEPHONE

25 157.250 161.850 Public Correspondence, Duplex No Yes TELEPHONE

25B RX Only 161.850 Public Correspondence, RX Only ------ ------ TELEPHONE

26 157.300 161.900 Public Correspondence, Duplex No Yes TELEPHONE

27 157.350 161.950 Public Correspondence, Duplex No Yes TELEPHONE

28 157.400 162.000 Public Correspondence, Duplex No Yes TELEPHONE

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

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CH SEND

(MHz)

RECEIVE (MHz)

TRAFFIC TYPE SHIP

TO SHIP

SHIP TO SHORE

NAME TAG

28B RX Only 162.000 Public Correspondence, RX Only ------ ------ TELEPHONE

60 156.025 160.625 Public Correspondence, Duplex No Yes TELEPHONE

156.075 156.075 U.S. Government, Canadian Coast

61A

Guard

Yes Yes UNAUTHORIZED

62A 156.125 156.125 Canadian Coast Guard Yes Yes CANADIAN CG

64 156.225 160.825 Public Correspondence, Duplex No Yes TELEPHONE

156.225 156.225 U.S. Government, Canadian

64A

Commercial Fishing

Yes Yes UNAUTHORIZED

65A 156.275 156.275 Port Operations Yes Yes PORT OPS

156.325 156.325 Port Operations – 1W Only Yes Yes PORT OPS

66A

67 156.375 156.375 Commercial, SAR Yes No COMMERCIAL

68 156.425 156.425 Boat Operations, Recreational Yes No SHIP - SHIP

69 156.475 156.475 Commercial Fishing Only Yes Yes COMMERCIAL

156.525 156.525 Digital Selective Calling - DSC ------ ------ DSC

71 156.575 156.575 Boat Operations, Recreational Yes Yes PLEASURE

72 156.625 156.625 Intership Yes No SHIP - SHIP

73 156.675 156.675 Commercial Fishing Only Yes Yes COMMERCIAL

74 156.725 156.725 Commercial Fishing Only Yes Yes COMMERCIAL

156.875 156.875 Port Operations –1W Only Yes Yes PORT OPS

78A 156.925 156.925 Boat Operations, Recreational Yes No SHIP - SHIP

79A 156.975 156.975 Commercial Yes Yes COMMERCIAL

80A 157.025 157.025 Commercial Yes Yes COMMERCIAL

157.075 157.075 U.S. GovernmENT or push the rotary

81A

157.125 157.125 U.S. Government, Canadian Coast

82A

knob Operations

Guard

Yes Yes UNAUTHORIZED

83 157.175 161.775 Canadian Coast Guard Yes Yes CANADIAN CG

157.175 157.175 U.S. Government, Canadian Coast

83A

Guard

Yes Yes UNAUTHORIZED

83B RX Only 161.775 Canadian Coast Guard, RX Only ------ ------ CANADIAN CG

84 157.225 161.825 Public Correspondence, Marine

85 157.275 161.875 Public Correspondence, Marine

86 157.325 161.925 Public Correspondence, Marine

87 157.375 161.975 Public Correspondence, Marine

88 157.425 162.025 Public Correspondence, Marine

Operator

No Yes TELEPHONE

49Northstar Explorer VHF Series: 721US, 721EU Operation and Installation Manual

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WEATHER

MHz TRAFFIC TYPE NAME TAG