Congratulations on your purchase of 3()0-!4%$'03.AVIGATOR
'.-+))- an advanced navigation and high performance position-
ing tool for the professional fleet ....and yet uncomplicated to operate.
The GN30 MKII has a 6" large bright 4 level monochrome LCD dis-
play. The latest GPS receiver technology and built-in differential* re-
ceiver ensures optimum accuracy at all times. Two units can be
connected together forming: The Bridge System ... one at the chart ta-
ble for planning and the other at the helm for navigation. Waypoints
and routes are transferred from planning to helm via a high speed data
link.
3HIPMATE'.-+))ISAVAILABLEWITHORWITHOUTDIFFERENTIAL'03
4HE'LOBAL0OSITIONING3YSTEM is rapidly becoming the most common
system used for navigation and positioning all over the world.
Not only for maritime use, but also for land-based applications and
aviation.
The satellite-based system has been developed and is operated by the
US Department of Defence in order to provide an accurate and reliable
service, which include a 24-hour global coverage.
The GPS system consists of approx. 24 satellites which orbit around
the Earth at an altitude of approx. 20,200 km.
The satellites transmit perfectly syncronized data. However, depend-
ing on the position, the signals will reach the receiver at a slightly dif-
ferent time. By adding the measured time difference to the known
position of the satellites it is possible to calculate the ship’s position to
within a few meters.
(OWTOUSETHISMANUAL
It is a good idea if you make yourself familiar with the key functions
and menu structure described in chapter 2 before you start out, and
then proceed with section 2.2 Getting started.
F See also Appendix A, Glossary of terms for description of abbrevia-
tions, etc.
'.-+)))NTRODUCTION #HAPTER
5
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