1.   Nearly everything else follows the ground plan of the later, and much larger, colony base station.

2.   When the measurements exceed pre-programmed thresholds, alerts will be sent to a base station computer.

3.   The transmitters will send a signal automatically to a local base station.

4.   Also, the amount of power depends on your distance from the tower or base station.

5.   And there were serious doubts as to whether cards and base stations manufactured before that would be upgradable to the new standard.

6.   Basically, a cellphone sends electromagnetic waves to a base station.

7.   Big markets also may exist in developed countries, where cellular phone companies want to expand their coverage territory without spending billions of dollars on new base stations.

8.   A pager message is generally sent via ground lines to a base station that transmits it to a satellite.

9.   But for now the application of choice is building extremely sharp filters that let cellular radio base stations operate without interference from unwanted signals or noise.

10.   But they could make cellular base stations much smaller, less obtrusive and lower in power, and thus less objectionable to neighbors.