capnsensible
Well-Known Member
GPS is sooo yesterday.
- Thread starter capnsensible
- Start date
RunAgroundHard
Well-Known Member
No need to read again, I did not comment on your use of electronics. I challenged your assertion, quote, "Most Ocean Sailors/racers do it too". On a previous post I discussed things that you said about accuracy of electronic systems e.g. SA. The below statement you made is wrong when it comes to navigation, "old school" is not safest nor more reliable than a correctly installed GPS system. If you do not agree with what I am saying, challenge the claims I make.
capnsensible
Well-Known Member
Baggywrinkle
Well-Known Member
The monkey on the right has just found out that the other three monkeys are Mizaru, Kikazaru, and Iwazaru - he has rightly concluded that there is no point in inviting them to the party he is currently organising on his WhatsApe group.
This cartoon illustrates beautifully the assumption made by those who don't understand how to use technology to improve their lives, and have no real idea how others might use it.
Many do indeed waste their time scrolling through endless drivel (my experience) on TikTok or YouTube Shorts, but for those of us who don't, the advantages go way beyond what was available "back in the day".
Society has become more fragmented, travel is easier, friends and family are no longer in the same village so what do you do? Write letters and wait a week for a response? When we need to know something, do we still get out the Encyclopedia Britannica or go to the Library (during opening hours)?
My experience is that people often laugh at new technologies, the question is why? Where is their curiosity?
.... is it simply because it is cool among our peers to scoff at anything new ... just live life in our comfort zone and never challenge our own preconceptions? Probably.
The world has moved on from social groups centered on geographical location, to groups centered around common interests - like this forum - far more diverse than the local sailing club with its cliques and petty politics.
RunAgroundHard
Well-Known Member
Both the videos you have posted Cap'n demonstrate the relentless advance of technology. While "GPS is sooo yesterday" might be premature, maybe within the remaining life I have, satellite positioning will be replaced with a more accurate terrestrial system. If the tech can't be shrunk and made low cost and energy efficient, then it will not transfer to leisure based systems and as satellites get switched off, perhaps leisure sailors will be forced back to using older technology. I doubt that, tech has habit of shrinking and cost reduction.
Baggywrinkle
Well-Known Member
Sounds like a candidate for sending his GoPro out on the boat and watching it all go by from the safety of his couch at home, wearing AV goggles and viewing the input from the sensors and camera battling the ocean miles away. Perhaps one of the legion of YouTube Sailors....
I have a drone for the remote-pilot bit - sailing is more enjoyable for me when done in the real world.
You might scoff at YouTube sailors, but they are out-there doing it - and simultaneously feeding the dreams of those sat at home in their armchairs.
capnsensible
Well-Known Member
RAI
Well-Known Member
Wasn't the quantum navigation system highlighted in The Big Bang Theory?
lustyd
Well-Known Member
Far more likely that mobile phones will gain an app to do celestial navigation. Perfectly accurate and only needs satellite for time updates now and then. Time can be updated with land based radio signals but the latency makes it hard. In theory we now have enough ways to measure that a phone could derive UTC time accurately.
Land based triangulation might be handy but would be susceptible to similar attacks as satellite comms so using the camera and other sensors for celestial is the obvious answer and is how ICBMs have worked for decades. The downside being cloud cover, of course.
[194224]
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That's very true and I'm sure is part of the reason that the eLoran yes or no question still rumbles on. Terrestrial based assets are perhaps even easier targets to disrupt that space-based ones. Where the terrestrial based option does win though is in the transmitted power (actually the power arriving at the receiver is more pertinent) which for eLoran is proposed to be a few million times that present in GNSS networks. That does mean jamming etc are appreciably harder but not completely avoidable.
lustyd
Well-Known Member
Jamming is a relatively unsophisticated attack. I suspect if we see real world issues it’ll be corruption to change a position. It would certainly cause more havoc!
capnsensible
Well-Known Member
Pretty much why a bit of military budgeting is being spent on researching alternatives, really. See #1
[194224]
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That's true of course but not to the exclusion of possible alternatives such as eLoran.Pretty much why a bit of military budgeting is being spent on researching alternatives, really. See #1
https://www.ofcom.org.uk/__data/ass...Spectrum-access-eLoran-systems-90-110-kHz.pdf
Paragraph 2.14 for instance
Although the 90-110 kHz band is mainly allocated for civilian use, we are aware of some eLoran use by the Ministry of Defence (MOD), based on the Anthorn site. This use currently falls under a Crown licence exemption.5 It is our understanding that the UK Government will maintain an eLoran capability.
Although eLoran has some appeal for non-military uses its chance of seeing the light of day may well depend on UK Government investment including that from the MOD. However I would add we've been here before!