Updating cell phone range
The database consists of an Acquisition table, which lists which radio frequencies to search for in which areas, and a System table, which tells the phone which towers it is allowed to connect to, and the preferred order.
A Signal Repeater typically consists of an outside antenna, an amplifier that requires AC or DC power and an inside antenna.
This process has a significant effect on your reception quality, the more your phone jumps from one tower to another, the less reception you will get.
The PRL helps determine which home-network towers to use, and also which towers belonging to other networks to use in roaming situations (areas where the home network has no coverage.) When roaming, the PRL may instruct the phone to use the network with the best roaming rate for the carrier, rather than the one with the strongest signal at the moment.
Tap “Settings” and select the option to manage your “Time and Date” settings. Remove the batteries from your cell phone while it is still on. Once the batteries are replaced, the phone's time will update.
Enable automatic updating of your cell phone's time. Try this method if your time still does not update after trying the other methods. Her articles have appeared on a variety of websites, covering technology, personal finance, music and health topics.
Without a correct and valid PRL, your phone won't be able to roam outside your home network, and may not be able to connect at all inside the network.
If this does not occur, you can update the phone's time manually.
In most instances, the solution is as simple as tweaking your phone's settings. Tap the “Menu” or “Start” key on your cell phone to view the expanded Home screen.
PRL stands for Preferred Roaming List and is a database used in CDMA (think Sprint and Verizon here) phones.
It's built and provided by your carrier, and used when your phone is connecting to the tower.
Knee says the system should spot accidents and predict traffic jams in stretches of road as short as a quarter of a mile.