A vessel's station instruction listing the duties of crew persons.
Related Terms |
GROUP REPETITION INTERVAL
The specified time interval of a Loran C chain for all stations of the chain to transmit their pulse groups. For each chain a minimum group repetition interval (GRI) is selected of sufficient duration to provide time for each station to transmit its pulse group and additional time between each pulse group so that signals from two or more stations cannot overlap in time anywhere within the coverage area. The GRI is normally stated in terms of tens of microseconds; i.e., the GRI having a duration of 79,900 microseconds is stated as 7900.
|
INTERNATIONAL CALL SIGN
An alpha-numeric symbol assigned in accordance with the provisions of the International Telecommunications Union to identify a radio station. The nationality or the radio station is identified by the first three characters; also referred to as call letters or signal letters.
|
NAVAL STATION
A naval base; a naval air station is a base for naval aircraft.
|
MAN THE RAILS
To station the crew of a naval vessel along the rails and superstructure of the vessel as a method of saluting or rendering honors.
|
MUSTER STATION
The location on a vessel a person goes either during an emergency or a drill to prepare for one. i.e. a Muster Drill. If a person is believed missing, all hands would report to their muster station for a head count.
|
LNB
A large buoy designed to take the place of a lightship where construction of an offshore light station i
|
LIGHT STATION
A manned station providing a light usually of high intensity and reliability. It may also provide sound signal and radiobeacon services.
|
ASTRONOMICAL MERIDIAN
A line connecting points having the same astronomical longitude. Because the deflection of the vertical (station error) varies from point to point, the astronomical meridian is not a plane curve. When the astronomical meridian is corrected for station error, it becomes the GEODETIC MERIDIAN. Also called TERRESTRIAL MERIDIAN and sometimes called GEOGRAPHIC MERIDIAN.
|
ASSIGNED FREQUENCY BAND
The frequency band whose center coincides with the frequency assigned to the station and whose width equals the necessary bandwidth plus twice the absolute value of the fre- quency tolerance.
|
ASTRONOMICAL LONGITUDE
Angular distance between the plane of the celestial meridian at a station and the plane of the celestial meridian at Greenwich. It is the longitude which results directly from observations of celestial bodies, uncorrected for deflection of the vertical, the prime vertical component of which, in the United States, may amount to more than 18'. Astronomical longitude applies only to positions on the earth, and i
|
