Question about GPS Devices
Global Positioning System satellites transmit radio signals which are received by your GPS receiver unit. Your GPS receiver uses these signals to calculate its current location, speed and altitude.
The GPS is not able to perform these calculations unless it is actually able to receive the radio signals from the satellites. Radio signals can be blocked by obstructions such as tall buildings, heavy foliage, tall hills and mountains, etc. Anything that prevents your GPS receiver from having a clear view of the sky will affect it's operation. This includes attempting to use the unit indoors or inside of a vehicle without an external antenna.
There is no way to "lock" the signals in. The GPS simply must be able to receive the signals and in order to do that it needs to be able to "see" the sky.
Hope this helps,
"Go Ahead. Use Us."
Posted on Jul 03, 2008
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