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Old 04-03-2010, 02:13 PM   #15
Join Date: Jul 2009
Posts: 14

Actually the Russian GLONASS system has enough satellites up to be considered operational - and funcctiuonality to support this system is being put into the next generation of GNSS chipsets.

With the GPS signal being so weak, jamming is a real threat to GPS (whether intentional or not). It's a shame that the US binned LORAN, but hopefully the momentum in Europe (from the UK, France and others) to establish E-LORAN will continue to give a viable alternative. With the LORAN signals being much stronger, and on a different frequency to GNSS, they are much less likely to be jammed.


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Old 04-21-2010, 12:44 AM   #16
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Join Date: Jan 2010
Home Port: Oxford, MD
Vessel Name: Boomerang!
Posts: 112

Originally Posted by Aquaria' date='24 February 2010 - 01:17 PM View Post

"Some at the conference argued that with the growing maritime use of sat-nav, crews were less able to revert to classic methods of map-reading and "dead reckoning"."

Here is the problem!!!

Back to the roots and let us be in doubt about our true position... a very good reason not to forget about the old navigation techniques: Maybe dead reckoning on a paper chart and checking these with the actual gps data and not just looking on the screen once in a wile. �Doing more eye balling and taking bearings to double check the actual position and many more things come to my mind!�


SY Aquaria
Absolutely correct... Without basic nav skills you are just asking for trouble. Spent the last year teaching my mate basic nav skills...working on the sextant now....she is finally getting the hang of it! It is really not difficult to do....it simply takes some effort, something not many want to do anymore....


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1980 Cal 39 Mark II

St Michaels, MD
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