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SPOT battery life
"Larry" wrote
Is this what they are?! http://www.batterybank.net/digital/master/aalith.html Yup, that's them. I just realized that the SPOT probably doesn't have a GPS in it but works like the cell phone GPS. All it does in tracking mode is wake up ever 10 minutes and transmit a short series of numbers to the satellite. One is the unit identifier and the other is the raw GPS data received. This little burst probably takes a millisecond. The rest of the time, it's just sleeping unless someone pushes one of the buttons. All the position processing is done on the big computer back in Texas. Everything except the unit ID, is input into the website by the user so does not need to be transmitted. -- Roger Long |
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