Furuno FM4850 Manuale utente

Tipo
Manuale utente
MARINE VHF
RADIOTELEPHONE
FM-4850
OPERATOR'S MANUAL
www.furuno.com
Model
SAFETY INSTRUCTIONS
The operator and installer must read the applicable safety instructions before attempting to operate or
install the equipment.
Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury.
WARNING
Indicates a potentially hazardous situation which, if not avoided,
can result in minor or moderate injury.
CAUTION
Warning, Caution
Prohibitive Action
Mandatory Action
CAUTION
Do not open the equipment.
This equipment uses high voltage
electricity which can shock, burn or
cause serious injury. Only qualified
personnel can work inside the equipment.
WARNING
If water leaks into the equipment or
something is dropped into the
equipment, immediately turn off the
power at the switchboard.
Fire or electrical shock can result.
If the equipment is giving off smoke
or fire, immediately turn off the
power at the switchboard.
Fire or electrical shock can result.
If you feel the equipment is acting
abnormally or giving off strange
noises, immediately turn off the
power at the switchboard and contact
a FURUNO service technician.
WARNING
Do not place liquid-filled containers
on or near the equipment.
Fire or electrical shock can result if a
liquid spills into the equipment.
Do not operate the equipment with
wet hands.
Electrical shock can result.
Use the correct fuse.
Use of the wrong fuse can cause fire or
electrical shock.
Do not touch any part of the antenna
when the equipment is transmitting.
Electrical shock can result.
Do not use high-pressure cleaners to
clean this equipment.
This equipment has the waterproof rating
outlined in the specifications, at the back
of this manual. However, the use of
high-pressure cleaning equipment can
cause water ingress, resulting in damage
to, or failure of, the equipment.
Do not disassemble or modify the
equipment.
Fire, electrical shock or serious injury
can occur. If the equipment does not
work properly, contact your dealer.
Make sure no rain or water splash
leaks into the equipment.
Fire or electrical shock can result if water
leaks into the equipment.
SAFETY INSTRUCTIONS
WARNING
Turn off the power at the mains
switchboard before beginning the
installation. Post a warning sign near
the switchboard to indicate that
power should not be applied while
the equipment is being installed.
Electrical shock, serious injury or fire
can result if the power is not turned off
or is applied while the equipment is
being installed.
Do not approach the antenna closer
than the distances shown below
when the antenna is transmitting.
The antenna emits radio waves that can
be harmful to the human body.
(MPE: Minimum Permissible Exposure)
100 W/m
2
0.12 m
10 W/m
2
0.39 m
0.2 mW/cm
2
1.50 m
IEC 60945
IEC 60945
MPE by FCC
RF power density
on antenna aperture
Distance
Description
required by
Maximum Antenna Gain: 6 dBi
This device complies with part 15 of
the FCC Rules.
Operation is subject to the following
two conditions:
(1) This device may not cause harmful
interference.
(2) This device must accept any interfer-
ence received, including interference
that may cause undesired operation.
1.2 W/m
2
2.50 m
MPE by IC
This transmitter must not be co-located
or operating in conjunction with any
other antenna or transmitter.
Note: This equipment has been tested
and found to comply with the FCC
standards.
These limits are designed to provide
reasonable protection against harmful
interference in a commercial 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
radio/TV technician for help.
[Radiation Exposure Statement]
This equipment complies with FCC
radiation exposure limits set forth for
an uncontrolled environment.
This equipment complies with FCC
radiation exposure limits set forth for an
uncontrolled environment.
This antenna should be installed with
minimum distance 150cm from your
body.
ISEDC RSS warning
This device complies with Innovation,
Science and Economic Development
Canada Compliance RSS standard
(s). 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.
Le présent appareil est conforme aux
CNR d'Innovation, Sciences et Dével-
oppement économique Canada
applicables aux appareils radio.
L'exploitation est autorisée aux deux
conditions suivantes:
(1) l'appareil ne doit pas produire de
brouillage, et
(2) l'utilisateur de l'appareil doit accepter
tout brouillage radioélectrique subi,
même si le brouillage est
susceptible d'en compromettre le
fonctionnement.
SAFETY INSTRUCTIONS
Confirm that the power supply
voltage is compatible with the voltage
rating of the equipment.
Connection to the wrong power supply
can cause fire or damage the equipment.
CAUTION
WARNING
ISEDC Radiation Exposure State-
ment:
This equipment complies with ISEDC
RF radiation exposure limits set forth for
an uncontrolled environment.
The antenna should be installed with
minimum distance 250cm from your
body.
This transmitter must not be co-located
or operating in conjunction with any
other antenna or transmitter.
Observe the following safe compass
distances to prevent interference to a
magnetic compass:
Standard
compass
Steering
compass
0.40 m 0.30 m
FM-4850
0.70 m 0.45 m
HS-4800
2.65 m 1.75 m
SP-4800
ISEDC exposition aux radiations:
Cet équipement est conforme avec
ISEDC les limites d'exposition aux
rayonnements définies pour un contrôlé
environnement.
L'antenne doit être installée avec une
distance minimale de 250cm de votre
corps.
Cet émetteur ne doit pas être
co-localisés ou fonctionner en conjonc-
tion avec une autre antenne ou
émetteur.
Any Changes or modifications not
expressly approved by the party respon-
sible for compliance could void the
user’s authority to operate the equip-
ment.
CE Compliance Statement
This product complies with CE under
RED directive 2014/53/EU.
The maximum antenna gain is 6dBi
which is caculated in the EIRP. The
distance form observation point to the
antenna is 2m.
IMPORTANT NOTICES
General
This manual has been authored with simplified grammar, to meet the needs of international users.
The operator of this equipment must read and follow the descriptions in this manual. Wrong oper-
ation or maintenance can cancel the warranty or cause injury.
Do not copy any part of this manual without written permission from FURUNO.
If this manual is lost or worn, contact your dealer about replacement.
The contents of this manual and equipment specifications can change without notice.
The example screens (or illustrations) shown in this manual can be different from the screens you
see on your display. The screens you see depend on your system configuration and equipment
settings.
Save this manual for future reference.
Any modification of the equipment (including software) by persons not authorized by FURUNO will
cancel the warranty.
The following concern acts as our importer in Europe, as defined in DECISION No 768/2008/EC.
- Name: FURUNO EUROPE B.V.
- Address: Ridderhaven 19B, 2984 BT Ridderkerk, The Netherlands
All brand and product names are trademarks, registered trademarks or service marks of their re-
spective holders.
How to discard this product
Discard this product according to local regulations for the disposal of industrial waste. For disposal
in the USA, see the homepage of the Electronics Industries Alliance (http://www.eiae.org/) for the
correct method of disposal.
How to discard a used battery
Some FURUNO products have a battery(ies). To see if your product has a battery, see the chap-
ter on Maintenance. Follow the instructions below if a battery is used. Tape the + and - terminals
of battery before disposal to prevent fire, heat generation caused by short circuit.
In the European Union
The crossed-out trash can symbol indicates that all types of batter-
ies must not be discarded in standard trash, or at a trash site. Take
the used batteries to a battery collection site according to your na-
tional legislation and the Batteries Directive 2006/66/EU.
In the USA
The Mobius loop symbol (three chasing arrows) indicates that
Ni-Cd and lead-acid rechargeable batteries must be recycled.
Take the used batteries to a battery collection site according to
local laws.
In the other countries
There are no international standards for the battery recycle symbol. The number of symbols can
increase when the other countries make their own recycle symbols in the future.
Cd
Ni-Cd Pb
FM-4850 Operators Manual
Contents
Contents
FOREWORD ................................................................................... 1
SYSTEM CONFIGURATION ........................................................... 3
1. GETTING STARTED ................................................................... 4
1.1 Emergency Call (CH16) .................................................................................. 4
1.2 How to Call another Channel (CH16 or CH9) .................................................. 4
1.3 Channels 13 and 67 (USA Channel Group only) ............................................. 5
2. CONTROLS ................................................................................. 6
2.1 Handset ........................................................................................................... 6
3. HOME SCREEN .......................................................................... 8
4. DIGITAL SELECTIVE CALLING ............................................... 10
4.1 General ......................................................................................................... 10
4.2 Maritime Mobile Service Identity ................................................................... 10
4.2.1 What Is an MMSI? ............................................................................... 10
4.2.2 How to Enter Your MMSI Number ....................................................... 10
4.3 DSC Distress Call.......................................................................................... 11
4.3.1 How to Initiate a DSC Distress Call ..................................................... 11
4.3.2 How to Receive a DSC Distress Call .................................................. 14
4.4 Individual Call ................................................................................................ 15
4.4.1 How to Initiate an Individual Call ......................................................... 15
4.4.2 How to Receive an Individual Call ....................................................... 17
4.5 Group Call ..................................................................................................... 19
4.5.1 How to Initiate a Group Call ................................................................ 20
4.5.2 How to Receive a Group Call .............................................................. 21
4.6 All Ships Call ................................................................................................. 23
4.6.1 How to Initiate an All Ships Call........................................................... 23
4.6.2 How to Receive an All Ships Call ........................................................ 24
4.7 Position Request Call .................................................................................... 25
4.7.1 How to Initiate a Position Request Call ............................................... 26
4.7.2 How to Receive a Position Request Call ............................................. 28
4.8 Auto Position Polling ..................................................................................... 30
4.8.1 How to Enable the Auto Position Polling ............................................. 30
4.8.2 How to Select Vessels to Which the Radio Sends Auto Position
Request Calls ............................................................................................... 31
4.8.3 How to Monitor Position ...................................................................... 31
4.9 DSC Log ........................................................................................................ 32
4.10 DSC Test ..................................................................................................... 33
5. CHANNEL WATCH ................................................................... 37
5.1 Dual Channel ................................................................................................ 37
Contents
FM-4850 Operators Manual
5.2 Triple Channel ............................................................................................... 37
6. SCAN ......................................................................................... 39
6.1 Scan All ......................................................................................................... 39
6.2 Scan All + 16 ................................................................................................. 39
6.3 Memory Scan ................................................................................................ 39
6.4 Memory Scan + 16 ........................................................................................ 40
6.5 Editing Memory Channel List ........................................................................ 40
7. Weather Mode........................................................................... 42
8. Fog Horn/Hailer/Intercom ........................................................ 44
8.1 Fog Horn ....................................................................................................... 44
8.2 Hailer ............................................................................................................. 48
8.3 Intercom ........................................................................................................ 49
8.4 Edit Handset Name ....................................................................................... 50
9. SETTING MMSI ......................................................................... 52
10. GENERAL SETUP ................................................................... 53
10.1 Display Setup .............................................................................................. 53
10.1.1 Adjusting the Backlight ...................................................................... 53
10.1.2 Adjusting the Contrast ....................................................................... 53
10.2 Units ............................................................................................................ 53
10.2.1 Time Format ...................................................................................... 53
10.2.2 Time Offset ........................................................................................ 54
10.2.3 Speed ................................................................................................ 55
10.2.4 Bearing .............................................................................................. 55
10.3 Key Beep ..................................................................................................... 55
10.4 GNSS Setup ................................................................................................ 56
10.4.1 Entering the "GNSS SETUP" Page ................................................... 56
10.4.2 Internal GNSS ................................................................................... 56
10.4.3 COG/SOG Display ............................................................................ 57
10.4.4 Manual Position ................................................................................. 57
10.5 I/O Port Setup ............................................................................................. 58
10.5.1 Entering the "I/O PORT SETUP" Page ............................................. 58
10.5.2 Selecting Output Port ........................................................................ 58
10.5.3 GNSS OUTPUT ................................................................................ 59
10.5.4 DSC OUTPUT ................................................................................... 59
10.5.5 AIS OUTPUT ..................................................................................... 60
10.6 System Information ..................................................................................... 60
10.6.1 Entering the "SYSTEM INFO" Page .................................................. 60
10.6.2 Software Version ............................................................................... 60
10.6.3 Diagnostic Test .................................................................................. 61
10.6.4 Factory Reset .................................................................................... 61
10.7 Fog Horn Frequency ................................................................................... 62
10.8 Service Menu .............................................................................................. 62
FM-4850 Operators Manual
Contents
11. CHANNEL FUNCTION SETUP ................................................ 63
11.1 Channel Group ............................................................................................ 63
11.2 Second Priority Channel .............................................................................. 63
11.3 Edit Channel Name ..................................................................................... 64
11.4 Private Channel ........................................................................................... 65
12. DSC SETUP ............................................................................. 66
12.1 Individual Directory ...................................................................................... 66
12.1.1 Adding an Entry ................................................................................. 66
12.1.2 Editing an Entry ................................................................................. 67
12.1.3 Deleting an Entry ............................................................................... 68
12.2 Group Directory ........................................................................................... 68
12.2.1 Adding an Entry ................................................................................. 68
12.2.2 Editing an Entry ................................................................................. 69
12.2.3 Deleting an Entry ............................................................................... 69
12.3 Channel Change Mode ............................................................................... 70
12.4 Individual Acknowledgement ....................................................................... 70
12.5 Position Acknowledgement ......................................................................... 70
12.6 Test Acknowledgement ............................................................................... 71
12.7 Auto Position Interval .................................................................................. 71
12.8 Timeout ....................................................................................................... 72
13. ATIS SETUP ............................................................................ 73
13.1 How to Enter the ATIS ID ............................................................................ 73
13.2 How to Enable/Disable the ATIS Feature .................................................... 74
14. MAINTENANCE AND TROUBLESHOOTING ......................... 75
14.1 General Maintenance .................................................................................. 75
14.2 Troubleshooting .......................................................................................... 76
15. INSTALLATION ....................................................................... 79
15.1 Equipment Lists ........................................................................................... 79
15.2 Mounting ..................................................................................................... 81
15.2.1 How to Install the Radio .................................................................... 81
15.2.2 How to Install the Handset ................................................................ 82
15.2.3 How to Install the Speaker ................................................................ 83
15.3 Wiring .......................................................................................................... 85
15.3.1 Overview ........................................................................................... 85
15.3.2 VHF Antenna ..................................................................................... 85
15.3.3 Ground Cable .................................................................................... 88
15.3.4 Power Cable...................................................................................... 88
15.3.5 NMEA 0183 Wire ............................................................................... 90
15.3.6 Horn Speaker .................................................................................... 90
15.3.7 NMEA2000 Connector (CAN bus connector) .................................... 91
15.3.8 Extension Cable ................................................................................ 91
15.3.9 GPS Antenna .................................................................................... 92
Contents
FM-4850 Operators Manual
CHANNEL ASSIGNMENTS .......................................................... 94
MENU TREE ............................................................................... 103
SPECIFICATIONS ...................................................................... 106
PACKING LIST ........................................................................... 109
OUTLINE DRAWINGS ................................................................ 113
INTERCONNECTION .................................................................. 119
TOOLS ........................................................................................ 120
FM-4850 Operators Manual
FOREWORD
FOREWORD
A Word to the Owner of the FM-4850
FURUNO Electric Company thanks you for purchasing the FM-4850 Marine VHF
Radiotelephone. We are confident you will discover why the FURUNO name has
become synonymous with quality and reliability.
Since 1948, FURUNO has enjoyed an enviable reputation for quality and reliability
throughout the world. This dedication to excellence is furthered by our extensive
global network of agents and dealers.
Your equipment is designed and constructed to meet the rigorous demands of the
marine environment. However, no machine can perform its intended function unless
properly installed and maintained. Please carefully read and follow the operation,
installation and maintenance procedures set forth in this manual.
We would appreciate feedback from you, the end-user, about whether we are
achieving our purposes.
Thank you for considering and purchasing FURUNO.
Features
FURUNO FM-4850 Marine VHF Radiotelephone supports the following features:
All-in-One Marine VHF Radiotelephone
25 W or 1 W RF Output Power
Class D DSC with Distress, Individual and All Ship calls
Built-in AIS receiver
Built-in high-sensitivity GNSS receiver
30 W PA/Loud Hailer with automatic fog signals and listen back
NMEA2000 & NMEA0183 interface
Up to 3 remote stations with handset HS-4800
ATIS mode available for inland waterway in Europe
Pre-programmed frequency band for USA, Canadian and International marine
channels, plus 10 weather channels where available
Initiate DSC call directly from NavNet TZtouch2 series when connected
(Version 1950152-06.01 or later)
Fully-waterproofed transceiver and handset (IP67)
Quick access to channel 16/9
Display GNSS Navigation information (LAT/LON, SOG, COG)
FOREWORD
FM-4850 Operators Manual
Program No.: FM : 0550258-01.**; HS-4800 : 0550259-01.**. (** denotes
minor modifications.)
CE declaration
With regards to CE declarations, please refer to our website (www.furuno.com), for
further information about RoHS conformity declarations.
FM-4850 Operators Manual
SYSTEM CONFIGURATION
SYSTEM CONFIGURATION
VHF ANT
GPS ANT
GPA-017
12VDC
Horn
Speaker
(SPK:4ohm)
NAV
EQUIPMENT
MARINE VHF
RADIOTELEPHONE
FM-4850
HANDSET
HS-4800
(SPK:16ohm)
SPEAKER
SP-4800
(SPK:8ohm)
NMEA2000
NMEA0183
EXTENSION
CABLE
EXTENSION
CABLE
EXTENSION
CABLE
Standard Supply
Optional Supply
Local Supply
Pigtail
Cable
NavNet
TZtouch/2
NAV
EQUIPMENT
GETTING STARTED
FM-4850 Operators Manual
1. GETTING STARTED
1.1 Emergency Call (CH16)
CH16 is known as the Hail and Distress Channel. When an emergency occurs, be
sure the radio is on and set to CH16. Then do as follows:
Step 1 Press the Push-To-Talk (PTT) key of the handset and say "Mayday,
Mayday, Mayday. This is XXXXX, XXXXX, XXXXX" (your vessel's
name).
Step 2 Then repeat once: "Mayday, XXXXX" (your vessel's name).
Step 3 Report your position in latitude/longitude, or give a true or magnetic
bearing to a well-known landmark such as a navigation aid or geographic
feature such as an island or harbor entry.
Step 4 Report the nature of your distress (sinking, collision, aground, fire, piracy,
life-threatening injury, etc.).
Step 5 State the kind of assistance you desire (pumps, medical aid, etc.).
Step 6 Report the number of persons aboard and condition of them.
Step 7 Estimate the present seaworthiness and condition of your vessel.
Step 8 Give your vessel's description: length, design (power or sail), color and
other distinguishing marks.
Step 9 Say "over" to end the message. Release the PTT switch and listen.
Step 10 Optional: If there is no answer, repeat the above procedure. If there is still
no response, try another channel.
Note
The total transmission should be within one minute.
The FM-4850 has DSC Distress calling, which can send a distress call
digitally to all ships with compatible DSC radios. For more information, see
section 4 DIGITAL SELECTIVE CALLING.
If the emergency call is accidentally sent, please refer to "Sending a
distress cancel call" in paragraph 4.3.1.
1.2 How to Call another Channel (CH16 or CH9)
CH16 (or CH9, depending on area) should be used as the calling channel for initial
contact with another vessel. However, its primary purpose is for emergency
communications and should be monitored at all times when the radio is not using
other channels.
CH16 or CH9 is monitored by other vessels and Coast Guard stations in all
countries.
FM-4850 Operators Manual
GETTING STARTED
The use of CH16 or CH9 should be limited to making initial contact only. A call
should be within 1 minute, but can be repeated at a 2-minute interval.
Before contact another vessel, refer to the channel charts in the Appendix and
select a proper channel (working channel) for use after initial contact. Monitor the
proposed channel to ensure you won't be interrupting other traffic and then go back
to CH16 to make your initial call.
When CH16 is clear, state the name of the vessel you wish to call and the "this is"
followed by the name of your vessel and your vessel call sign. When the other
vessel returns your call, immediately request another channel by saying "go to", the
number of the other channel, and "over". Then switch to the new channel. When
the new channel is not busy, call the vessel.
After a transmission, say "over", and release the PTT switch on the handset. When
all communication with the vessel is completed, end the last transmission by stating
your call sign and the word "out". Note that you do not need to state your call sign
with each transmission, only at the beginning and end of the contact.
Remember to return to CH16 when not using another channel. Some radios
automatically monitor CH16 even when set to other channels or when scanning.
1.3 Channels 13 and 67 (USA Channel Group
only)
Channel 13 is used at docks and bridges and by vessels maneuvering in port.
Messages on this channel must concern navigation only, such as meeting and
passing in restricted waters.
Channel 67 is used for navigational traffic between vessels.
By regulation, power is normally limited to 1 Watt on these channels. Your radio is
programmed to automatically reduce power to this limit on these channels.
However, in emergency situations it may be temporarily use a higher power. See
section 2 CONTROLS for how to temporarily override the low-power limit on these
two channels.
CONTROLS
FM-4850 Operators Manual
2. CONTROLS
This section describes the controls of the handset HS-4800. It is used to control the
FM-4850.
2.1 Handset
No.
Description
1
[PTT]: Push-to-Talk Key
The transmitter is enabled for voice communications with another
vessel.
Note
When the PTT key on the handset
is pressed continuously,
transmission time is limited to five minutes. This limits unintentional
transmissions due to a stuck PTT key.
In addition,
Power is automatically reduced to protect against
overheating due to continuous transmission.
FM-4850 Operators Manual
CONTROLS
No.
Description
2
[MENU/DSC]: Menu / Digital Selective Calling (DSC) Control
On the home screen:
Press: Enter "MAIN MENU"
Rotate: Switch to a channel
On other screens:
Press: Select item or confirm the selection
Rotate: Move to other item or select a number
3
[VOL/SQL]: Volume / Squelch Control
Press the key to switch between the volume adjust screen and the
squelch adjust screen.
4
[HI/LO]: High / Low Power Switch
Press the switch to toggle between 25 W (High) and 1 W (Low).
5
[DISTRESS]: Distress Key
Short press: Enter the distress nature selection and position
manual input menu
Long press: Press the DISTRESS key for 4 seconds to send a
distress call.
6
[ ]: Back Key
On the home screen: No function
On other screens:
Short press: Clear entries, cancel calls, backspace the
cursor, or back up to the previous screen
Long press: Return to the home screen
7
[16/+]: 16/+ Key
Press the key to cancel all other modes and to tune into the priority
channels (CH16 and CH9). Press the key again to return to the
previously selected working channel.
Note
CH9 is used in some parts of the world as an alternative calling
channel to CH16.
8
[ ]: On / Off Key
Press the key to turn the handset on or off. If you turn off the last
handset connected to the FM-4850, the FM-4850 will also be
powered off.
Short press: Enter the display setup mode
Long press: power on or power off
HOME SCREEN
FM-4850 Operators Manual
3. HOME SCREEN
No.
Description
1
- : indicates high power such as 25 W.
- : indicates low power such as 1 W.
2
: indicates internal and External GNSS.
This icon disappears if there is no GNSS data.
This icon flashes with 500ms when there is GNSS data before, but
current internal GNSS and External GNSS are not fixed.
3
: indicates unread DSC messages.
4
- : indicates the dual watch mode.
- : indicates the triple watch mode.
5
: This icon appears if user selects START of AUTO POS
POLLING->ACTIVATION.
This icon disappears if user selects END of AUTO POS
POLLING->ACTIVATION.
6
: indicates weather alert.
7
- : indicates battery strength more than 15.6V.
- : indicates battery strength lean than 10.5V.
8
Operational Status icon
(Rotates clockwise to indicate system is working)
9
-No icon
FM standby.
- Indicates reception.
-
Indicates transmission.
FM-4850 Operators Manual
HOME SCREEN
No.
Description
10
Display location information including longitude, latitude, time,
COG, and SOG.
If there is no any information, it displays "NO GNSS DATA".
Note
There are three sensors including built-in sensor, NMEA2000 and
NMEA0183. The last two are external sensors. Their priorities in
descending order are described as follows:
1. Built-in sensor: The GNSS data from this sensor enjoys the
highest priority.
2. NMEA2000: If no valid GNSS data is from the built-in sensor
or this sensor is disabled, the GNSS data from NMEA2000 will
be used.
3. NMEA0183: If no valid GNSS data from both the build-in
sensor and NMEA2000, the GNSS data from NMEA2000 will
be used.
11
In non scan mode: display CH NAME.
In scan mode:
SCAN ALL: indicates that the user selects SCAN ALL
SCAN ALL+16: indicates that the user selects SCAN ALL+16
MEMORY SCAN: indicates that the user selects MEMORY SCAN
MEMORY SCAN +16: indicates that the user selects MEMORY
SCAN+16
12 &
13
Displays the current channel number.
Note
The first two digits in No.12. The last two digits in No. 13.
14
-
Indicates that the current channel is simplex.
-
Indicates that the current channel is duplex.
15
- : This icon appears if CH GROUP is INT.
- : This icon appears if CH GROUP is USA
- : This icon appears if CH GROUP is CAN
- : This icon appears if CH GROUP is USA or CAN, and
WEATHER MODE is ON.
DIGITAL SELECTIVE CALLING
FM-4850 Operators Manual
4. DIGITAL SELECTIVE CALLING
4.1 General
Digital Selective Calling (DSC) is a semi-automated method to establish a radio call.
DSC has been designated by the International Maritime Organization (IMO) as an
international standard for establishing VHF, MF and HF radio calls. It has also been
designated as a part of the Global Maritime Distress and Safety System (GMDSS).
DSC replaces listening watches on distress frequencies and is used to broadcast
routine and urgent maritime safety information broadcasts.
This system allows mariners to instantly transmit a distress call with GNSS position
to the Coast Guard and other vessels within the range of the transmission. DSC
also allows mariners to initiate or receive distress, urgency, safety, routine, position
request, position transmit, and group calls to or from another vessel equipped with a
DSC radio.
4.2 Maritime Mobile Service Identity
4.2.1
What Is an MMSI?
An MMSI is a nine-digit number used on marine radios capable of using DSC. This
number is used like a telephone number to selectively call other vessels.
Note
To use the DSC functions, this vessel’s MMSI must be entered into the radio.
4.2.2 How to Enter Your MMSI Number
Caution
An MMSI can be entered only once. Therefore, be careful not to enter the
wrong MMSI number. If you need to change the MMSI number after it has been
entered, contact your dealer.
Step 1 Press the Menu/DSC control until the "MAIN MENU" appears.
FM-4850 Operators Manual
DIGITAL SELECTIVE CALLING
Step 2 Go to "SET MMSI".
Step 3 Enter your MMSI number (nine digits).
If you enter a wrong digit, press the BACK key until the wrong digit is
selected, and then enter the correct digit.
Step 4 After you enter the MMSI number, press the Menu/DSC control to save
the number.
Step 5 Enter the MMSI number again, and then press the Menu/DSC control to
save the number.
If you enter a different digit that you entered at Step 3 and press the
Menu/DSC control, automatically return to the Step 3.
4.3 DSC Distress Call
FM-4850 can send and receive DSC distress calls. When FM-4850 receives GNSS
signals, FM-4850 can also transmit the latitude and longitude of the vessel together
with the DSC distress call.
4.3.1 How to Initiate a DSC Distress Call
Note
To transmit a DSC distress call, this vessel’s MMSI number must be entered
into the radio. For information about how to enter the MMSI number, see
section 4.2.2 How to Enter Your MMSI Number.
Initiate a DSC distress call without specifying the nature of
distress
The FM-4850 can transmit a DSC distress call without specifying the following
natural of distress categories: Undesignated, Fire, Flooding, Collision, Grounding,
Listing, Sinking, Adrift, Abandoning, Piracy, and MOB (Man Overboard).
Step 1 Open the cover labeled "DISTRESS".
Step 2 Press and hold the Distress key (about 4 seconds). The unit beeps and
the display shows the time remaining until the distress signal is sent.
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