Sentence examples for cellphone frequencies from inspiring English sources

DIRECT SIGNAL BOOSTERS Unlike personal cell sites, signal boosters amplify the strength of all cellphone frequencies, regardless of carrier.

Zetron, a company in Redmond, Wash., makes the Cellphone Detector Plus, a $449 receiver that sounds an audio alert when it detects certain cellphone frequencies.

Methods include jammers that interfere with cellphone frequencies, routing systems that mute phones' ringers in specific places, sensors that detect active cellphones and building materials that block cellphone waves.

"Every part of us is now data, and it's being extracted for profit," she says, showing a tiny box that cuts out cellphone frequencies when any iPhone is placed in its path.

The long-awaited results of a $25 million National Institutes of Health study on the effects of cellphone radio-frequency radiation exposure on animals is out, and the results are mixed.

Even if you have a GSM phone that operates on both overseas frequencies, domestic cellphone providers do not want you to use your phone with another company's SIM card, because they do not make any money when you do.

Similarly, public safety officials want the FCC to evict cellphone carriers from certain frequencies to minimize interference with police and firefighter radios.

But the frequency of cellphone radiation is more than a million-fold lower.

The auction will not advance the on-board use of conventional cellphones, which use other frequencies and are still prohibited in the air.

But when the two cohorts — cancer and no cancer — were subdivided according to the frequency of cellphone use, bizarre results emerged.

One technology addressed by the report is called cognitive radio, in which cellphones scan for available frequencies and choose the best one to use.