Iphone flir

[Billylll]

GPS Measured 2.5 m / 4.7 m The actual measured accuracy of the system (excluding receiver errors), with SA turned off, based on the findings of the FAA's National Satellite Test Bed, or NSTB.
WAAS Measured 0.9 m / 1.3 m The actual measured accuracy of the system (excluding receiver errors), based on the NSTB's findings.

 

[Billylll]

quote:

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Originally posted by Stephen

I use my iPad as a GPS. If you get the cell-capable version, you can still take advantage of the GPS without any connectivity at all. I used it all last year without problem. In fact, I have no plans to buy a stationary GPS for my boat because of it. Although I do plan on buying a stand for it. With the software I used it was accurate to within yards and the latency was much better than the LORAN I was used to.

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LORAN was never meant to be high accuracy.
Here is the spec for the defunct system.
LORAN-C Measured Repeatability 50 m / 50 m The U.S. Coast Guard reports "return to position" accuracies of 50 meters in time difference mode