Radio

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RADIO 1 - Marine Band VHF frequency range. VHF 30 to 300 MHz and VHF frequency / channel to transmit a distress alert Channel 70 156, 525 Mhz or DSC DSC (digital selective calling) Frequency and / or channel for traffic relief. Channel 16 156, 8 MHz (telephony) approximate range in miles, justified by the method of propagation of waves at these frequencies. tropospheric waves or ground, direct spread, range 25-30 miles insured equipment board (1 -25 W), laptops 10-15 miles (1 or 5 w) Navy Banda MF: MF Band Frequency range from 300 to 3000 MW or MF khz rate and / or channel to transmit a distress alert 2187, 5 kHz DSC or DSC (digital selective calling) Frequency and / or channel for traffic relief. 2182 (telephony) approximate range in miles, justified by the method of propagation of waves at these frequencies. Ionospheric propagation, range 150-200 mi 2-ship station licenses and other documentation services. It must have: Ship Station License; document showing that a ship can use a given radio transmitter installed on board. In requesting the LEB in the MMSI Captain And we allocated the call sign for our boat. · Journal Radio electric · radio log sheet beacon · Safety Radio Certificate · list of coastal stations, hours of listening, frequency and fees. · List of rescue centers and frequencies used. · List of centers with distinctive NAVTEX transmitter and programmable release schedules. 3, 406 MHz beacons - Placement Onboard satellite beacons, also known as an EPIRB, must be placed in an accessible place, ready to be manually released or transported a survival craft. - Means and ideas float-free arrangements for its operation and be capable of floating free if the ship sinks through a hydrostatic release units activated automatically. - Carrier frequency 406 MHz and purpose, 5 w of power bursts of 0.5 seconds duration every 50 seconds. - Minimum duration of the battery when activated. 48 hours - Idea of the system from activating until the start of the SAR operation and ways to get the status of the beacon. When activated the beacon sends the MMSI to COSPAS-SARSAT satellite system some radio beacons contain a GPS receiver antenna and emit latitude and longitude along with MMSI, if no GPS antenna makes a rough estimate of the situation of SOS by Doppler effect, which may reach the situation have found an error in this way about 5 km, approx .. 4-Operational Procedures radiotelephone VHF public correspondence. Describe how the call is made to another vessel or a coast station using the LSD and its content. It will enter the DSC menu or LSD, and make an individual call routine will insert the MMSI of the ship or shore station with which we wish to communicate The MMSI is 9 digits (in Spain begin with 224xxxxxx ships and shore stations by 00224xxxx) and finally choose a working channel for use between ships (06.08, 13 etc.).. CALL click the button (call) for two seconds and automatically send the message after receiving the acknowledgment both teams remain in the radio channel assigned work.5-operational procedure for distress communications on VHF, GMDSS, transmitting a warning: - Idea of how it is transmitted distress alert Two main forms, · push button DSC menu, choose the type menu and press the button DISTRESS ENTER us types of SOS appears that we can choose our position in the GPS, validate with ENTER on the menu will appear with UTC time validate ENTER, press the DISTRESS button for 5 seconds. The system will pass to channel 16 156.8 after receiving the acknowledgment ACK to study traffic on phone · Press SOS directly DISTRESS button for 5 seconds, as in the previous case we receive the MMSI, UTC and coordinates The team deliver an SOS message indefinitely. The system we will move to channel 16 156.8 after receiving the acknowledgment ACK to study traffic on phone SOS - Contents of a distress alert. MMSI Message Type DISTRESS SOS boat in UTC and PST ship SOS (the data obtained from GPS) DSC TX CH 70 CH of CH 16 to traffic - How to act when after a while there continue to be the same distress call from another boat. If after a period of time not has received a reply from the coast, give a receipt to the ship in SOS in CH 16 and try to connect us with the coastal station if we can not communicate with the shore station would spend to broadcast MAYDAY RELAY



Acknowledgment of receipt of a distress alert complete. MEDE, Medea, MEDE name ship in danger, or MMSI distinctive (3) Here name or coastal boat that receives the SOS (3) Received MAY DAY. 1-Formation of identification numbers maritime mobile service. The are 9-digit MMSI (in Spain begin with 224xxxxxx ships and shore stations by 00224xxxx) 2-traffic zone 2 and its relationship with the sea areas A1 and A2 nationals, as defined in Art. 4 of RD 1185/2006. (regulation by regulating the marine radio Spanish civil vessels.) The navigation area 2 covers 60 miles from the coast, the area A1 Radio offers continuous watch on the maritime safety frequencies in the VHF radio and telephone LSD. The radio A2 area excludes the A1 and provides continuous watch on the maritime safety frequencies in MF, radio telephony and LSD. As the navigation area 2 covers up to 60 miles we should have on-board radio equipment for A1 and A2 have full coverage on radio 3-The COSPAS-SARSAT COSPAS-SARSAT system is a system of polar orbiting satellites inception in 1976, currently has more than 26 satellites and global coverage. It was adopted as an integral part of the Global Maritime Distress and Safety System GMDSS. It is the satellite system using the 406 MHz EPIRB Once the satellite receives a radio beacon, you can calculate its position in two ways, either by Doppler or by GPS beacon that emits, knowing who emits the MMSI The satellite broadcasts this information to the ground satellite station (LUT) puts into operation at the control center that alerts CCM mission control centers and rescue CCR and these in turn forces the SAR. 4-messages relief, emergency and security, which indicates each word or words and procedures or identified. Distress Message: Takes precedence over all other communications, serves to warn of an imminent and serious danger to a vessel or person uses the word MAYDAY (MEDE) (3 times) and to hear other stations keep strictly silent. Urgent message: he has preference over others except distress messages, the calling station has to transmit an urgent message concerning the safety of a ship or persons. You use the word (PAN PAN) (3 times). Safety Message: message is launching a ship or shore station indicating a notice concerning the safety of sailors or important weather alert. You use the word SECURITE (3 times) and was performed after the first period of silence. To make the call is used on Channel 16 or frequency of 2,182 kHz. But the rest of the message must be repeated on another channel or on another frequency. It should be noted that should make rational use of these signals. We must make it clear that these signals must be used properly in order to make aid corresponding to case. 5-Interference (measures to prevent interference or saturation of the channels or frequencies). To prevent interference in the channels , is due to make a judicious use of equipment, are prohibited from broadcasting stations all unnecessary or redundant signaling, false or misleading, or without identification. Transmitting stations are required to limit the radiated power to the minimum necessary to ensure satisfactory service. 6-secret communications. Authority regarding the pattern of communications. The master of a vessel is responsible for use of the mobile station, is obligated not to disclose part or all messages that are generated by the radio electric spectrum. It prohibits the interception without authorization, radiocommunications not intended for general public use 7-Services provided by the coastal stations (appointment only for special services at present, the shipping service phone briefly explaining each) Coast stations transmit weather forecasts and navigational warnings at scheduled times. Besides being in continuous watch by SOS, urgency and safety. With regard to special services, public correspondence, telegrams, auto link, fax offering the previous concessionaire TELEPHONE. There are currently offered by the new contractor of the service. ABERTIS RETEVISION.

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