Posted by author on May 23rd, 2010
Priority for distress calls, distress messages and other messages concerning the safety of lives at sea.
Distress calls shall have absolute priority over all other transmissions. All stations hearing such calls shall immediately cease all transmission capable of interfering with the distress traffic and shall continue to listen to the frequency used for the emission of the distress call.
This call shall not be addressed to a particular station and acknowledgment of the receipt shall not be given before the distress message which follows it has been transmitted.
Posted by author on May 23rd, 2010
Ships are required to take care of all service documents that may be subject to submission in accordance with the Radio Ragulations. The following documents are required:
- The ship’s Radio Licence
- The Radio operator’s certificates
- The GMDSS Radio Logbook
- The List of Call Signs and Stations’ Numerical Identities used by the Maritime Mobile and Maritime Mobile Service (ITU)
- The List of Coast Stations (ITU)
- The List of Ship Stations (ITU)
- The List of Radiodetermination and Special Service Stations (ITU)
- The manual for Use by the Maritime Mobile and Maritime Mobile Satellite Services (ITU)
In addition international/national regulations require that the following documentation/publication be carried on board:
- Radio Safety Certificate
- Antenna sketch
- List of spare parts
Posted by author on May 23rd, 2010
The testing of radio equipment should be kept at any absolute minimum. In order to avoid harmful interference, remember to take all possible precautions, such as:
- choice of frequency (distress frequencies should not be used unless absolutely necessary)
- tests should be carried out using reduced power/artificial antenna
- duration of test signals should be less than 10 seconds
- test transmissions should include callsign/other identification of the transmitting station
Posted by author on May 23rd, 2010
All stations are forbidden to carry out:
- unnecessary transmissions
- the transmission of superfluous signals and correspondence
- the transmission of false or misleading signals
- the transmission of signals without identification
Make sure not to interfere with transmissions already in progress, and radiate only as much power as is necessary to ensure satisfactory service.
Posted by author on May 23rd, 2010
The holder of the radio licence is required to preserve the secrecy of telecommunications, as laid down in the relevant provisions of the Convention.
The station is not allowed to receive any other correspondence than it is intended to.
Without special permission, it is prohibited to publish or take advantage of traffic designated to others.
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