JRC JHS-770S - User manual

INSTRUCTIONINSTRUCTION
MANUALMANUAL
JHSJHS-770S/780D770S/780D
MARINE VHF RADIOTELEPHONEMARINE VHF RADIOTELEPHONE
ISO 9001, ISO 14001 Certified
AUG. 2019 Edition 1CODE No.7ZPJD0632A
Not use the asbestos
For further information,contact:
URL Head office : http://www.jrc.co.jp/eng/
Marine Service Department
1-7-32 Tatsumi, Koto-ku, Tokyo 135-0053, Japan
: [email protected]
:
[phone]
e-mail
One-call

.

CAUTIONS AGAINST HIGH VOLTAGE
Radio and radar devices are operated by high voltages of anywhere from a few hundred volts up
to many hundreds of thousands of volts. Although there is no danger with normal use, it is very
dangerous if contact is made with the internal parts of these devices. (Only specialists should
attempt any maintenance, checking or adjusting.)
There is a very high risk of death by even a few thousand volts, in some cases you can be fatally
electrocuted by just a few hundred volts. To prevent accidents, you should avoid contact with the
internal parts of these devices at all costs. If contact is inevitable as in the case of an emergency,
you must switch off the devices and ground a terminal in order to discharge the capacitors. After
making certain that all the electricity is discharged, only then can you insert your hand into the
device. Wearing cotton gloves and putting your left hand in your pocket, in order not to use both
hands simultaneously, are also very good methods of shock prevention.
Quite often, an injury occurs by secondary factors, therefore it is necessary to choose a sturdy
and level working surface. If someone is electrocuted it is necessary to thoroughly disinfect the
affected area and seek medical attention as soon as possible.
When you find an electrocution victim, you must first switch off the machinery and ground all
circuits. If you are unable to cut off the machinery, move the victim away from it using a non-
conductive material such as dry boards or clothing.
When someone is electrocuted, and the electrical current reaches the breathing synapses of the
central nervous system inside the brain, breathing stops. If the victim's condition is stable, he or
she can be administered artificial respiration. An electrocution victim becomes very pale, and their
pulse can be very weak or even stop, consequently losing consciousness and becoming stiff.
Administration of first aid is critical in this situation.
Cautions concerning treatment of
electrocution victims
7ZPJD0632A

First aid
☆Note points for first aid
Unless there is impending danger leave the victim where he or she is, then begin artificial
respiration. Once you begin artificial respiration, you must continue without losing rhythm.
(1) Make contact with the victim cautiously, there is a risk that you may get electrocuted.
(2) Switch off the machinery and then move the victim away slowly if you must.
(3) Inform someone immediately (a hospital or doctor, dial emergency numbers, etc.).
(4) Lay the victim on his or her back and loosen any constrictive clothing (a tie, or belt).
(5) (a) Check the victim's pulse.
(b) Check for a heartbeat by pressing your ear against the victim's chest.
(c) Check if the victim is breathing by putting the back of your hand or face near the victim's
face.
(d) Check the pupils of the eyes.
(6) Open the victim's mouth and remove any artificial teeth, cigarette or chewing gum. Leave the
mouth opened and flatten the tongue with a towel or by putting something into the mouth to
prevent the victim's tongue from obstructing the throat. (If he or she is clenching the teeth and
it is difficult to open the mouth, use a spoon or the like to pry open the mouth.)
(7) Continually wipe the mouth to prevent the accumulation of saliva.

☆If the victim has a pulse but is not breathing
(“Mouth to mouth” resuscitation) Figure 1
(1) Place the victim’s head facing backward (place something under the neck like a pillow).
(2) Point the chin upward to widen the trachea.
(3) Pinch the victim’s nose, take a deep breath, then put your mouth over the victim’s mouth and
exhale completely, making sure that your mouth completely covers the victim’s mouth.
Then remove your mouth. Repeat this routine 10 to 15 times per minute (holding the
nostrils).
(4) Pay attention to the victim to notice if he or she starts to breath. If breathing returns, stop
resuscitation.
(5) If it is impossible to open the victim’s mouth, put something like a plastic straw or vinyl tube
into one of the nostrils then blow air in while covering the mouth and the other nostril.
(6) Occasionally, when the victim comes back to consciousness, they immediately try to stand
up. Prevent this and keep them in a laying position. Give them something warm to drink
and be sure that they rest (do not give them any alcohol).
Administering artificial respiration by raising the head.
①(1) Raise the back of head, then place one
hand on the forehead and place the
other hand under the neck. →①
Most victims open their mouth when this
is done, making “mouth to mouth”
resuscitation easier.
②(2) Cover the victim’s mouth by opening
your mouth widely, then push your cheek
against the victim’s nose, →②
or pinch the victim’s nose to prevent air
from leaking out of it. →③
③(3) Completely exhale into the lungs.
Exhale into the lungs until the chest
inflates.
You have to blow as rapidly as possible
for the first 10 times.
“Mouse to mouse” artificial respiration
Figure 1

☆If the victim has no pulse and is not breathing
(Heart massage in combination with artificial respiration.) Figure 2
If the victim has no pulse, his or her pupils are dilated, and if you cannot detect a heartbeat, the
heart may have stopped, beginning artificial respiration is critical.
(1) Put both hands on the diaphragm, with hands on top of each other keeping both arms straight
(If your elbows are bent, you cannot push with as much power). Press the diaphragm with
your body weight until the chest sinks about 2 cm (about 50 times per minute).
(2) If administering first aid when alone:
Perform the heart massage about 15 times then blow in twice. Repeat this routine.
If administering first aid with two people:
One person performs the heart massage 5 times, and the other person blows air in once.
Repeat this routine (Heart massage and “mouth to mouth” resuscitation used together).
(3) Constantly check the pupils and the pulse, if the pupils become normal and the pulse steadies,
keep them in a laying position and give them something warm to drink, be sure that they rest
(do not give them any alcohol). In any case you have to entrust major decision making to a
doctor. Having understanding people around is essential to the victim’s recovery from the
mental shock of electrocution.
①②
③④
(Heart massage in combination with artificial respiration.) Figure 2

v
Preface
Thank you for choosing the Model JRC JHS-770S/780D Marine VHF Radiotelephone. This
radiotelephone can be used as a Global Maritime Distress and Safety System (GMDSS) radio
device, compliant with international regulations, that provides emergency communications and
standard communications capabilities for small and large ships.
●Please read this instruction manual thoroughly before using the JHS-770S/780D Marine VHF
Radiotelephone, and use it in accordance with the instructions contained herein.
●Please keep this manual available for future reference. Please refer to it if any difficulties
are encountered when using the equipment.
FCC Warning
Changes or modifications not expressly approved by JRC, could void your
authority to operate this radiotelephone.
Radio Frequency Interference Statement
This radiotelephone has been tested and found to comply with the limits for a
Class A digital device, pursuant to part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful interference
when the equipment is operated in a commercial environment. This
radiotelephone generates, uses, and can radiate radio frequency energy and,
if not installed and used in accordance with the instruction manual, may
cause harmful interference to radio communications. Operation of this
radiotelephone in a residential area is likely to cause harmful interference in
which case the user will be required to correct the interference at his own
expense.
RF exposure compliance (MPE* compliance by FCC)
The antenna used for this transmitter must be installed to
provide a separation distance of at least 0.9 meters (3 feet)
from all persons and must not be co-located or operating in
conjunction with any other antenna or transmitter. Users
and installers must be provided with antenna installation
instructions and transmitting operating conditions for
satisfying RF exposure compliance.
* Maximum Permissible Exposure (MPE): The rms and peak electric
and magnetic field strength, their squares, or the plane-wave
equivalent power densities associated with these fields to which a
person may be exposed without harmful effect and with an acceptable
safety factor.

vi
Before Operation
Concerning the symbols
This manual uses the following symbols to explain correct operation and to prevent injury or
damage to property.
The symbols and descriptions are as follows. Understand them before proceeding with this
manual.
WARNING Indicates a warning that, if ignored, may result in
serious injury or even death.
CAUTION Indicates a caution that, if ignored, may result in injury
or damage to property.
Examples of symbols
The ∆symbol indicates caution (including DANGER and WARNING). The
illustration inside the ∆symbol specifies the content of the caution more
accurately. (This example warns of possible electrical shock.)
The symbol indicates that performing an action is prohibited. The illustration
inside the symbol specifies the contents of the prohibited operation. (in this
example disassembly is prohibited.)
The symbol indicates operations that must be performed. The illustration
inside the symbol specifies obligatory instructions. (In this example
unplugging is the obligatory instruction.)
NBD-865 Power supply (Upper view)

vii
NTE-770S/780D VHF Transceiver (Upper and side views)

viii
Handling precaution
WARNING
Do not open the equipment to inspect or repair it. Inspection or repairs by anyone other
than a specialized technician may result in fire, electrical shock, or malfunction.
If internal inspection or repair is necessary, contact our service center or agents.
Do not disassemble or customize this unit. Doing so may cause fire, electrical shock, or
malfunction.
Do not get this equipment wet or spill any liquids on or near this equipment.
Doing so may cause electrical shock or equipment malfunction.
Do not touch any of the areas with warning labels.
Doing so may cause electrical shock.
Do not use a voltage other than specified.
Doing so may cause fire, electrical shock, or malfunction.
Do not remove protective covers on the high voltage terminals.
Doing so may cause electrical shock.
Do not insert anything flammable into the equipment.
Doing so may cause fire, electrical shock, or malfunction.
If a distress alert is received, make sure to inform the ship's captain or officer in charge.
Doing so may save the lives of the crews and passengers on the ship in distress.
This unit is also used for the distress communication, in addition to usual communication.
Contact JRC or our agent if any problem is observed in this unit on usual operation or
inspection. Do NOT ignore or leave any problems of this unit.
Always use the specified fuse when replacing a fuse. Using a different fuse may result
in fire or malfunction.
Before replacing fuses of the POWER SUPPLY (NBD-865), always turn off the AC/DC
power switch and power source output to this unit.
In addition to the AC fuse on the panel of the POWER SUPPLY (NBD-865), there are also
DC fuses contained in the unit. Opening and working with the inside of the unit may
result in fire or electrocution, so with the exception of qualified service personnel, do NOT
attempt to replace the DC fuses. To replace the DC fuses, contact JRC or our agent.

ix
CAUTION
Do not use this equipment for anything other than specified.
Doing so may cause failure or malfunction.
Do not turn the trimmer resistors or the trimmer capacitors on the PCB unit. Doing so
may cause failure or malfunction. They are preset at the factory.
Do not install this equipment in a place near water or in one with excessive humidity,
steam, dust or soot. Doing so may cause fire, electric shock, or malfunction.
Do not test the distress alert as doing so will inconvenience local shipping and Rescue
Centers.
Do NOT turn off the power of the equipment when at sea because the SOLAS
Convention requires keeping CH16 watch at all times.
Always listen to the CH16 except when talking on a specific channel.
To operate DSC and ATIS functions of this equipment, ID numbers must be registered
respectively. If not been registered, contact our agent or service center.
Leave installation of this equipment to our service center or agents. Special knowledge
on selecting the place where the antenna is to be mounted and setting the ID number
(MMSI) assigned to the ship is required besides mounting operation.
When sending a distress alert, follow the instructions of the ship's captain or officer in
charge.
If a false distress alert is transmitted accidentally, select the Cancel menu and transmit
the distress cancel referring the guidance displayed on the controller. And then report the
false distress alert to a nearby RCC (Rescue Coordination Center/ in Japan, inform the
nearest Japan Coast Guard.)
Information to be reported:
Ship's name, type, nationality, and ID number, the date/time, location and reason
why the false distress alert was transmitted. Also the unit model name and
manufacture number/date, if possible.
To turn off an alarm or clear a display such as a received DSC message, do NOT press the
DISTRESS key. Doing so may cause a false distress alert.
(Press the CANCEL key to turn off the alarm and delete the on screen message.)

x
CAUTION
When sending a drobose call, do NOT press the DISTRESS key. Doing so may cause a
false distress alert.
(Drobose calls can be sent via [Call] button displayed on the screen.)
A distress acknowledgement or a distress relay call can be transmitted from a received
distress message stored in the log, but when sending such a kind of call, follow the
instructions of the ship's captain or officer in charge.
In order to avoid accidental distress message treating, received distress messages will be
erased automatically after 48 hours elapsed since the reception. Accordingly, if such
messages cannot be read out, it is NOT a malfunction.
The time in the menu 9.1.2 Present time is different from the time in the menu 9.2.2 UTC
of position that means the time when the position information is valid.
The time in the menu 9.2.2 UTC of position means the time when the position information
is valid, and is different from the present time mentioned above.
Close the water-resistant cap of the waterproof type handset box after use. Rain and sea
breeze could cause connector malfunction. Also do not leave the handset above deck.
The thermal head of the printer may be very hot after printing. Do not touch it.
Perform paper replacement and head cleaning only after waiting for the head to
completely cool.
The printing paper used in this printer is a heat sensitive paper. Take the following
precautions when using this paper.
· Store the paper away from heat, humidity, or heat sources.
· Do not rub the paper with any hard objects.
· Do not place the paper near organic solvents.
· Do not allow the paper to come in contact with polyvinyl chloride film, erasers, or
adhesive tape for long periods of time.
· Keep away the paper from freshly copied diazo type or wet process copy paper.
For the CHANNEL SELECTOR (NCM-2000) installed above deck, close the water-
resistant cap after use. Rain and sea breeze could cause connector malfunction. Also
do not leave the handset above deck.
Always set the expanded MMSI in the bridge of the vessel to zero (0). If setting to
another value other than zero, DSC calls may not be received.

xi
Sending a Distress Alert
CAUTION
When sending a distress alert, follow the instructions of the ship's captain or officer in charge.
1
1
1.
.. Open the DISTRESS key cover on the NCM-1770 CONTROLLER.
2
2
2.
.. Press and hold the DISTRESS key for 4 seconds. (See the note below.)
When the countdown is finished, the screen below on the right is displayed and after confirmed that the
channel is free or after 1 seconds, whichever occurs first, the distress alert is transmitted.
3
3
3.
.. After sending the distress alert, wait for an acknowledgement.
The radiotelephone can be used to communicate even while waiting for an acknowledgement on the
screen below left. When an acknowledgement is received, press the CANCEL key or ENT to cancel the
alarm on the below right screen, and communicate with the station. Unless an acknowledgement is
received or the distress alert is cancelled manually, the equipment repeats the distress alert every 3.5
to 4.5 minutes.
4
4
4.
.. After receiving acknowledgement, lift the handset and request rescue using CH16 of
the radiotelephone.
First, the responding station calls by radiotelephone. Communicate the following information to that
station.
Say "MAYDAY", "This is (name of your ship)", Tell the ship's Maritime Mobile Service
Identity number, call sign, ship's position, nature of distress, and rescue requests.
DISTRESS ALERTS

xii
If time permits, enter the nature of the distress as follows, just before sending the
distress alert. (For more details, see 4.4.5.2.)
1) Open menu 3. Editing a distress msg.
2) Press ENT on the screen at right and select
the nature of the distress.
3) Press ENT to confirm the selection.
The nature of the distress is set. If the position
and time (UTC) are not displayed automatically for
any reason, input them manually at this time.
4) Press and hold the DISTRESS key for 4
seconds to send the distress alert.
The rest of the procedure is the same as
described above.
Terminating a Distress Alert
CAUTION
If a false distress alert is transmitted accidentally, select the Cancel menu and transmit the
distress cancel referring the guidance displayed on the controller. And then report the false
distress alert to a nearby RCC (Rescue Coordination Center/ in Japan, inform the nearest
Japan Coast Guard.)
Information to be reported:
Ship's name, type, nationality, and ID number, the date/time, location and reason why the false
distress alert was transmitted. Also the unit model name and manufacture number/date, if
possible.
Select the Cancel menu and press ENT on the NCM-1770 VHF CONTROLLER.
The screen shown below is displayed. Then select Continue with the jog dial and press ENT to start the
distress cancel procedure referring the guidance displayed on the controller.
Note) For more details, see the description in the 4.4.5.1 Quick distress alerts.
Note
ID 431000000 12:34(UTC)
70
3)Editing a distress msg
Nature :[Undesignated ]
Position :[NE]
[ 89ﾟ59.0123'N]
[179ﾟ59.6789'E]
UTC :[12:34]
Nature

xiii
Receiving a Distress Alert
WARNING
If a distress alert is received, make sure to inform the ship's captain or officer in charge.
Doing so may save the lives of the crews and passengers on the ship in distress.
1
1
1.
.. When a distress alert is received, the information such as the ID number of the ship in
distress and the stage of the distress event are displayed.
If the equipment is not used, i.e. there is no active procedure
at that time, the CH16 is set and the ALM lamp starts blinking,
and an alarm gradually grows louder.
Even If there is no active procedure as above, when
the menu "9.5.8 Auto CH change" is OFF, the channel
is not automatically changed to CH16.
In this case, after pressing the CANCEL key to stop
the alarm, select the "Accept" on the popup screen
to set the CH16 and skip to step 3.
2
2
2.
.. Press the CANCEL key to stop the alarm.
Keep watch on CH16 for at least 5 minutes, and notify
the coast station as appropriate.
3
3
3.
.. To acknowledge to the distress alert after coordination with the coast station, from the
above screen, press FUNC key to move the active screen to the message control area
to select ACK and press ENT to send the acknowledgement.
After sending it, commence distress traffic via radiotelephony on CH16 as follows.
Say "MAYDAY",
Repeat the identity (MMSI) of the ship in distress 3 times,
Say "This is",
Repeat the identity (MMSI) of your ship 3 times,
Say "RECEIVED MAYDAY".
Note

xiv
Equipment exterior
●JHS-770S/780D VHF Marine Radiotelephone
NTE-770S/780D VHF Transceiver
NCM-1770 VHF Controller / NQW-261 Handset

xv
●NQE-1845 Handset Connector Box
Waterproofed flush mount type
(for wing console)
●NQE-1846 Handset Connector Box
Waterproofed wing installation type
●NQE-1847 Handset Connector Box
Indoor flush mount type
●NCM-2000 VHF Channel Selector
●NBD-865 AC/DC Power Unit ●NCH-321A Distress Message Controller

xvi
●NKG-91 Printer ●NKG-901 Printer
●DPU-414 Printer
●NVS-423R External Speaker
NKG-901
PRINTER

Contents
Preface ............................................................................ v
Before operation ............................................................ vi
Handling precaution ...................................................... viii
DISTRESS ALERTS ........................................................ xi
Equipment exterior ........................................................ xiv
Glossary of terms .......................................................... xx
1 EQUIPMENT OVERVIEW ........................................... 1-1
1.1 Functions ...................................................................................................................... 1-1
1.2 Features ....................................................................................................................... 1-1
1.3 Basic configuration ....................................................................................................... 1-2
1.3.1 Basic configuration of the main unit ..................................................................... 1-2
1.3.2 Options ................................................................................................................. 1-2
1.3.3 System configuration ........................................................................................... 1-3
1.4 External dimensions ..................................................................................................... 1-4
1.5 Block diagram .............................................................................................................. 1-15
2 NAMES AND FUNCTIONS ......................................... 2-1
2.1 Controller (NCM-1770) ................................................................................................. 2-1
2.2 Main displays ............................................................................................................... 2-3
2.2.1 Status display ....................................................................................................... 2-3
2.2.2 Operating display ................................................................................................. 2-4
2.2.3 Function screen and key operations .................................................................... 2-6
2.2.4 Menu screen ........................................................................................................ 2-7
3 INSTALLATION .......................................................... 3-1
4 OPERATION ............................................................... 4-1
4.1 Controller operation overview ...................................................................................... 4-1
4.2 Basic communication procedure .................................................................................. 4-3
4.2.1 Turning ON the power .......................................................................................... 4-3
4.2.2 Turning OFF the power ........................................................................................ 4-4
4.2.3 Communicating with the radiotelephone .............................................................. 4-5
4.2.4 Receiving with scanning ...................................................................................... 4-8
4.2.5 Receiving with dual watch .................................................................................... 4-9
4.2.6 Using memory channels ...................................................................................... 4-10
4.2.7 Communicating on a private channel .................................................................. 4-12
4.2.8 Receiving a weather channel ............................................................................... 4-12

4.2.9 Changing the channel region .............................................................................. 4-13
4.2.10 Squelch settings of each channel (preset squelch) ............................................ 4-14
4.3 Basic DSC operations ................................................................................................. 4-15
4.3.1 Routine calls to an individual station ................................................................... 4-15
4.3.2 Receiving routine individual calls ........................................................................ 4-17
4.3.3 Routine group calls .............................................................................................. 4-19
4.3.4 Receiving routine group calls .............................................................................. 4-20
4.3.5 Communicating with a PSTN subscriber ............................................................ 4-21
4.3.6 AIS-linked DSC calls ........................................................................................... 4-24
4.4 Emergency calls (DSC safety/ urgency/ distress Calls) .............................................. 4-25
4.4.1 Safety or urgency calls to an individual station ................................................... 4-25
4.4.1.1 Special safety individual calls ........................................................................... 4-25
4.4.2 Receiving safety or urgency individual calls ....................................................... 4-26
4.4.2.1 Receiving special safety individual calls .......................................................... 4-27
4.4.3 Safety or urgency all ships calls .......................................................................... 4-28
4.4.4 Receiving safety or urgency all ships calls .......................................................... 4-29
4.4.5 Distress alerts ...................................................................................................... 4-30
4.4.5.1 Quick distress alerts ......................................................................................... 4-30
4.4.5.2 Distress alerts from the menu .......................................................................... 4-33
4.4.5.3 Receiving distress alerts .................................................................................. 4-35
4.4.6 Distress relay calls on behalf of someone else (DROBOSE) ............................. 4-36
4.5 DSC call log ................................................................................................................. 4-38
4.5.1 Received distress messages .............................................................................. 4-38
4.5.2 Received other messages ................................................................................... 4-39
4.5.3 Transmitted messages ........................................................................................ 4-39
4.6 Other features .............................................................................................................. 4-40
4.6.1 Notification of registered ships by the AIS ........................................................... 4-40
4.6.2 Playback of received voice .................................................................................. 4-41
4.6.3 Public Address function with an external speaker (option) ................................. 4-44
4.6.4 Intercom .............................................................................................................. 4-45
5 SETTINGS & REGISTRATIONS ................................. 5-1
5.1 Date and time setting .................................................................................................. 5-1
5.2 Own ship position and time setting .............................................................................. 5-3
5.3 Settings for each controller .......................................................................................... 5-5
5.3.1 LCD adjustment ................................................................................................... 5-5
5.3.2 Sound settings ..................................................................................................... 5-5
5.3.3 User key assignment ........................................................................................... 5-6
5.3.4 Name a controller ................................................................................................ 5-7
5.3.5 Menu shutdown timer setting .............................................................................. 5-8
5.3.6 Disabling the hook switch .................................................................................... 5-8
5.4 Creating contact lists ................................................................................................... 5-9
5.5 Advanced settings for DSC ......................................................................................... 5-12
5.5.1 Automatic acknowledgement .............................................................................. 5-12
5.5.2 Disabling receiving alarms for routine and safety calls ....................................... 5-12
5.5.3 Medical/Neutral use setting for urgency calls ..................................................... 5-13