@Geoff
Oh, I understand how a GPS works. I can give a good technical lecture on the details if you wish.
I can also give a good technical lecture on how commercial GPSs have failed under certain conditions, such as when the signals from the first couple of satellites turn out to be reflections off cliffs or similar. Been there, was amused.
No problem at all to do a major thru-hike with everything pre-loaded.
Ah – if you are on a known pre-selected track. But what if your long walk is all off-track through the mountains? A lot of Australian bushwalking is done off-track you see, often surrounded by masking cliffs. Or what if you suddenly decide to change your route, to explore a different area?
you can locate yourself to within a meter or two
Which is cute, but potentially hazardous. You could walk along staring at your phone the whole time, and walk straight into a dead branch or over a small cliff-line. Plenty of that around here. And why bother to go out walking if you are going to stare at your phone the whole time to stay within a metre of your route?
You can get a mini rugged phone with a US Military Spec that will soldier on through wet, heat, cold, dust, impact and vibration at a cost of around 120 grams and $USD 100.
So? Tell me more, please. With the latest iPhones hitting $1,000, some of us might appreciate cheaper alternatives.
On any long hike it also allows you to check weather forecasts, avalanche and water reports, coordinate with other hikers and trail angels, book eateries, accommodation and transport, and all kinds of other uses.
Sounds great, but:
* Checking the weather forecast is not that much use. You are out there anyhow, so you will have to deal with the weather anyhow.
* Avalanche and water reports: we don’t have those here. And who is going to lodge those reports anyhow?
* Coordinate with other hikers? Why would I want to do that? They have their own trips.
* Trail Angels? We don’t have those here. Will one die without them?
* Book eateries: HA! bain’t none around here my friend. You want food, you carry it, and you cook it.
When the cost is so modest, a small GPS phone surely has a place in the toolbox for most serious walkers?
Ah, so the generations before us who never had a GPS were not ‘serious walkers’? Yeah, right.
All good marketing spin, but it ignores the fact that generations of serious walkers have not had GPSs, and that continues today.
Mind, you, I have no objections to anyone carrying whatever electronic goodies they want. HYOH.
But I will continue to point out that one can navigate, accurately and even under extreme conditions, without those electronic goodies. Because we (walkers) have been doing that for decades or even over 100 yrs.
Just a thought to ponder: solar scientists have been suggesting that we are due (or overdue) for a major solar flare. This could knock out many of our communication satellites and GPS satellites, because they are not hardened sufficiently. (They can’t afford the weight of the shielding.) They may also knock out land-based comms towers and even the grid: it has happened before. So what then? Do we all burrow into our caves and wait until everything has been replaced?
Cheers