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.
Define attenuation. Define - The reduction in the number of xray photons in the beam and subsequent loss of energy as the beam passes through matter. to weaken or reduce in force, intensity, effect, quantity, or value. PP - Partial absorption of primary xray beam by patient. What makes up attenuation.