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A comment on Reverse Engineering Apple Location Services Protocol. Parent comment

Re:Reverse Engineering Apple Location Services Protocol by moontear on Wednesday May 10, 2017 @02:22PM (#14310360)
Right. But would still be interesting how "far" away the hotspots are downloaded. If I e.g. roadtrip from New York to Chicago with Internet in New York - I wonder how far Wifi Assisted GPS would help me before there isn't any meaningful data anymore.
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Re:Reverse Engineering Apple Location Services Protocol by MarHoff on Thursday May 11, 2017 @04:58AM (#14314719)
At the time of the location gate I had parsed my personal buffer and I found out that pretty much all Manhattan was included. I hadn't a roaming plan when visiting New-York so I only got randomly access to internet at free hotspots.

So I guess a good rule of thumb would be to turn off while on the road with no wifi, but keep on in cities (where A-GPS is the most efficient) where you gonna stay for awhile with sporadic hotspot access.

Also classical GPS (while slow to kick-in) is often really good enough in countryside where you don't suffer from building shapes interfering with the signal.

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