JL
THE DECCA NAVIGATOR COMPANY LTD
introduce
a new offshore survey system
operating on high frequencies
using lightweight equipment
HI-FIX offers for the first time a system that is
INTERNATIONALE NAVIGATIE APPARATEN N.V.
precise, compact, lightweight, highly mobile and suitable for all forms
of hydrography, offshore exploration, engineering survey, dredging, etc.
free from the bugbears of 'beat notes', modulated transmissions, multiple
frequencies, reference stations, wide bandwidths and interference,
based on the sound principles and employing the same techniques as the
Decca Navigator System which is now used in its basic forms by more than
6,000 vessels, to say nothing of the many survey chains throughout the world.
MASTER
RECEIVER
RECEIVER
SLAVE 21
MASTER
ISLAVE t|
ISLAVE 2[
HI-FIX equipment can be deployed in either the TWO RANGE or HYPERBOLIC forms by deploying
the master station ashore or on the survey vessel, no equipment changes being required
TWO-RANGE HI-FIX
The two-range version gives the maximum
accuracy obtainable from the system with only
two shore stations and no lattice charts.
HYPERBOLIC HI-FIX
The hyperbolic layout provides a
high accuracy service for an unlimited
number of users simultaneously.
HI-FIX is the answer for those small inshore areas where Hyperbolic
or Two Range Decca is not justified on economic grounds.
Normal Decca and Hi-Fix stations can be co-sited to give the
precision pattern inshore (lane identified by the normal patterns)
combined with the long working range of the normal Decca System.
WIJNHAVEN 42 - ROTTERDAM
TELEFOON 010-115990 (6 LIJNEN)
