5 - 108MW Frequency (kHz): 522 - 1710 (9k) / 520 - 1710 (10k)WEATHER Frequency: CH 1-7 CHMemory Presets: 45 (20 FM, 20 AM and 5 W x )Stereo: EarphonesOutput Power: 1WEarphones Output Power: 1m W x 2Batteries Output Power: 0. The NOAA Weather Alert Emergency Channel sounds a very loud audible tone when an extreme weather condition is imminent and/or a police emergency has occurred or any type of public awareness becomes critical.28" H x 1. Sangean PR-D12 AM & FM NOAA Weather Alert Digital Tuning Portable Radio.