The “sub crawl” is a little-known way you can optimize the placement of your surround sound system’s subwoofer.

At 2:20 p.m. ET / 1:20 CT / 11:20 PT on Oct. 4, cellular devices, televisions, and radio systems across the U.S. will sound off as part of a national emergency alert test designed to ensure that the ...

DES MOINES, Iowa - Phones, TVs and radios will all will sound off for a test of the Emergency Alert System Wednesday at 1:20 p.m. CT. Federal officials want to make sure the national system would work ...

HONOLULU (HawaiiNewsNow) - The monthly test of the all-hazard Statewide Outdoor Warning Siren System will sound as scheduled, officials say. The test is scheduled for Friday, Aug. 1, at 11:45 a.m.

The government has urged people to "keep their cool" when the national system for sending emergency alerts to mobile phones ...