WNG 689 Hebron, 162.450 MHz. NOAA All Hazards Weather Radio station WNG-689 serves northwest Indiana, including the Valpariaso, Hebron and Porter Township areas, from a 300 watt transmitter located in Hebron, IN. The nominal effective range of the transmitter is about 40 miles.
fluctuate (third-person singular simple present fluctuates, present participle fluctuating, simple past and past participle fluctuated) (intransitive) To vary irregularly; to swing. (intransitive) To undulate.
This article is about attenuation in physics. For other uses, see Attenuation (disambiguation). In physics, attenuation (in some contexts also called extinction) is the gradual loss in intensity of any kind of flux through a medium. For instance, dark glasses attenuate sunlight, lead attenuates X-rays, and water attenuates both light and sound.