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Committee of Radio Communications and Search and Rescue.



Related Terms

COMSAR

Committee of Radio Communications and Search and Rescue.

EMERGENCY POSITION INDICATING RADIOBEACON

A small portable radio- beacon carried by vessels and aircraft which transmits radio signals which can be used by search and rescue authorities to locate a marine emergency.

RADIONAVIGATION

  1. The determination of position, or the obtaining of information relating to position, for the purposes of navigation by means of the propagation properties of radio waves. 2. As defined by the International Telecommunication Union (ITU), radiodetermination used for the purposes of navigation, including obstruction warning.

S.R.R.

Search and rescue region of defined dimensions, associated with the national rescue coordination centre.

ELECTROMAGNETIC WAVES

Waves of associated electric and magnetic fields characterized by variations of the fields. The electric and magnetic fields are at right angles to each other and to the direction of propagation. The waves are propagated at the speed of light and are known as radio (Hertzian) waves, infrared rays, light, ultraviolet rays, X-rays, etc., depending on their frequencies.

EQUIPHASE ZONE

The region in space within which there is no difference in phase between two radio signals

CENTIMETRIC WAVE

A super high frequency radio wave, approximately 0.01 to 0.1 meter in length (3 to 30 gigaHertz).

EQUISIGNAL ZONE

The region in space within which the difference in amplitude of two radio signals (usually emitted by a signal station) is indistinguishable

COMPENSATED LOOP RADIO DIRECTION FINDER

A loop antenna radio direction finder for bearing determination, which incorporates a second antenna system designed to reduce the effect of polarization and radiation error.

INCINERATION AREA

An officially designated offshore area for the burning of chemical waste by specially equipped vessels. The depiction of incineration areas on charts (in conjunction with radio warnings) is necessary to insure that passing vessels do not mistake the burning of waste for a vessel on fire.

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