Reply to post: Re: Not gonna happen. Other countries have satellites, the UK must have satellites...

Register Lecture: Can portable atomic clocks end UK dependence on GNSS?

Alan Brown Silver badge

Re: Not gonna happen. Other countries have satellites, the UK must have satellites...

One of the more "interesting" parts about using Loran for nav is that you need to know what KIND of geography is around the area.

Radio diffracts/refracts quite differently around a pointy peninsula than a round-ended one and differently still along a smoothish coastline - this would frequently result in Loran-derived positions that were several miles from where you actually were - not good if the area in question has rocky reefs in it (or if you're giving Loran positions for SAR purposes - it wasn't uncommon for them to be 20 miles out and a small boat in open ocean in bad conditions is remarkably hard to spot even when only 5 miles away in the air)

There's a very good reason it fell out of favour quickly when civilian GPS got into high-accuracy mode.

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