General Description - jotron Tron SART20 User Manual

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GENERAL DESCRIPTION

Tron SART20 is emergency equipment consisting of:
1. Tron SART20 radar transponder.
2. Mounting rope for life rafts / life boats.
The 9 GHz radar transponder type Tron SART20 is developed by Jotron AS to
meet the rules and regulations for use on vessels and life rafts in the maritime
service. Tron SART20 meets the specifications for 9 GHz radar transponders
for use in search and rescue operations at sea.
The operating range of the Tron SART20 is up to 30 nautical miles, depending
on the height of the electronic unit and the radar height of the search and res-
cue unit (sea or airborne). With a radar height of 20m and the Tron SART20
placed at 1m above sea level, the range will be up to 10 nautical miles.
Tron SART20 is buoyant, however to obtain maximum performance the tran-
sponder should be placed in a vertical position and as high up as possible in
order to achieve maximum coverage.
Several mounting brackets and mounting aids are available to ensure correct
mounting and use of the radar transponder.
The purpose of the Tron SART20 is to perform a secondary alarm when se-
arch and rescue units are searching for a life raft / lifeboat in distress. The Tron
SART20 will help the units to pinpoint exactly where the distressed boat is lo-
cated in a larger area. This is done with the help of the radar on the searching
ship or helicopter.
When the Tron SART20 is interrogated (hit) by a radar signal, it will immediately
start to transmit a number of sweeps covering the complete maritime 3 cm
radar band.
These sweeps are detected on the radar screen and are used to navigate di-
rectly towards the distressed life raft, for details on radar display see chapter
5.3.
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