JRC JMR-9230-S Installation Manual page 43

Ship-avoiding operation
Sleeping AIS target
Spot depth
SSR: Solid State Radar
Update (Chart Maintenance) :
: To operate the ship in order to avoid obstacles during automatic navigation,
regardless of the scheduled route
: A target indicating the presence and orientation of a vessel equipped with AIS
: Numeric representation of depth
: Radar that uses semiconductor elements instead of magnetron, which
requires periodic replacement. It is built with a system that ensures
necessary detection capability even when a transmission output is low, by
using chirp signals with a long pulse length upon transmission and
performing pulse compression upon reception
A procedure of reflecting the update data supplied by Update CD on the
imported chart.
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