aad.born
Decca navigatie
picture:
Admiralty Manual of Navigation BR45
showing the receiver and the indicator
Decca MK V indicator
with
Decca chain indicator
lane identification meter,
3 decometers , "red", "green", "purple",
Hyperbolic radio navigation system
operating in the frequency band 70-130 kHz
very reliable at the time in the 1960's.
Covered some areas.
like the Northsea, British home waters, etc.
This system was medium range and not operational.worldwide.
(unreliable at night in distant Northern European waters)
Dutch deep-sea trawlers, in the 1960's
equipment is fitted on most vessels
Dutch merchant navy ships, in the 1960's
fitted for the duration of the European coastal voyage only.
A couple of weeks at the most.
As Decca's Rental system was thought to be (very) expensive.
Decca navigatie
picture:
Admiralty Manual of Navigation BR45
showing the receiver and the indicator
Decca MK V indicator
with
Decca chain indicator
lane identification meter,
3 decometers , "red", "green", "purple",
Hyperbolic radio navigation system
operating in the frequency band 70-130 kHz
very reliable at the time in the 1960's.
Covered some areas.
like the Northsea, British home waters, etc.
This system was medium range and not operational.worldwide.
(unreliable at night in distant Northern European waters)
Dutch deep-sea trawlers, in the 1960's
equipment is fitted on most vessels
Dutch merchant navy ships, in the 1960's
fitted for the duration of the European coastal voyage only.
A couple of weeks at the most.
As Decca's Rental system was thought to be (very) expensive.