JRC JHS-770S Instruction Manual

MARINE VHF RADIOTELEPHONE ...

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 fatal ...

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 emerge ...

(“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 t ...

(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 th ...

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 i ...

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 � ...

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 thi ...

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 al ...

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 ...

CAUTION When sending a distress alert, follow the instructions of the ship's captain or officer in charge. 111... Open the DISTRESS key cover on the NCM-1770 CONTROLLER. 222... 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 aler ...

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 ...

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. 111... 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 ...

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vi Handling precaution ...................................................... viii DISTRESS ALERTS ........................................................ xi Equipment exterior ........................................................ xiv Glossary of terms ..................... ...

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 .......................................................... ...