![]() Recently we moved house, WiFi moved with us with the same ID, then looking on "Find your iPhone" one or two devices still showed as being at the old address even thought they had GPS chips in them, so they were reporting their location back based only on viewable WiFi networks rather than consulting their own GPS data. Some devices do not have a GPS chip (iPADs with no GPRS functionality for instance) & rely on the first two, the others would use whatever mix is available with you would hope a preference for GPS.Īt least with iPhones/iPADs they upload a list of GPS coordinates & visible WiFi networks so via a data connection a device can figure out where it is in the absence of GPS. ![]() We do our best to optimize the use of the location services too keep low the battery consumption, however you have to be aware that: "Continued use of GPS running in the background can dramatically decrease battery life.The phones/tablets use a mixture of Cell Tower triangulation, what WiFi networks it can see, and GPS. The weather data are collected from buoys and ships around the world and can gives you very useful information about:Īnchor Watcher doesn't need an Internet connection in order to monitor your location, however you need it to fetch maps and the buoys and ships info, after that you fetched them you will be able to continue to use them offline. Anchor Watcher is a useful application that will help you monitoring your position, see the drifting track and check the weather condition while you are enjoying your time sailing.Įasy to use, you need just to choose your monitor distance and Anchor Watcher will fire an alarm when your position will be out of the range, you can have the application in background, Anchor Watcher will send you a notification, so you won’t miss it.
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