RSS Feed
The master, or person in charge of the ship, has the highest authority with regards to the operation of the radio station.
On board ships fitted with GMDSS installations and sailing in Sea Area A2, A3, A4, there must be at least one person with a GENERAL OPERATOR’S CERTIFICATE (GOC).
Other duty officers must be holders of [...]
Archive for the ‘Global Maritime Distress and Safety System’ Category
Operation of the Ship Station – Operator Certificates
Posted by author on May 23rd, 2010
Radio Surveys and Radio Safety Certificates
Posted by author on May 23rd, 2010
The radio equipment must satisfy the provisions stipulated in the Radio Regulations, and be in accordance with the radio licence.
All cargo and passenger ships obliged to be fitted with radio stations in accordance with the SOLAS Convention must have a CARGO SHIP SAFETY RADIO CERTIFICATE.
The certificate is normally valid for maximum one year from the [...]
Posted in Global Maritime Distress and Safety System, Regulations and Traffic Procedures 
Tags: cargo, CARGO SHIP SAFETY RADIO CERTIFICATE, international conventions and agreements, passenger ships, radio equipment, radio licence, Radio Regulations, Radio Safety Certificates, Radio Surveys, SOLAS convention 
No Comments »Ship’s Radio Licences
Posted by author on May 23rd, 2010
All established mobile stations must have a radio licence, normally issued by the national administration or another office/institute on behalf of the national administration. The conditions are laid down in the licence document.
The licence, or a copy of it, must always be found on board the ship so that it can be inspected by any [...]
MF Antenna
Posted by author on May 23rd, 2010
MF Antenna Lengths
In the medium wave (MF) frequency range from 1605 kHz to 4000 kHz, the electrical length of the antenna is always a quarter of the total wavelength.
MF Emergency Antenna
In some cases, it may be necessary to replace a damaged antenna, your MF/HF antenna, for instance. The distress frequency on the MF band is [...]
Unit of Measurement: Hertz (Hz)
Posted by author on May 23rd, 2010
The unit used for measuring frequency is Hertz, symbolized by Hz, and signifying the number of periods per second. A radio wave is often several million Hertz, but using such large numbers is often inconvenient. Therefore we adjust the unit of measurement to a suitable quantity.
Example No 1:
1 THz (Terra Hz) = 1000 000 000 [...]
Posted in Global Maritime Distress and Safety System, Ship's Antennas Tags: frequency, Hertz, radio wave, VHF DSC, wavelength No Comments »
