City of Orlando Chief of Police John W. Mina said Mateen seemed organized and well-prepared. On June 13, FBI Director James Comey told reporters, So far, we see no indication that this was a plot directed from outside the United States and we see no indication that he was part of any kind of network.
Ranging capabilities for reflective targets extends out to 1000 yards, for hard objects (such as trees) 650 yards and for soft targets (animals) the max distance is 325 yards. Bushnell has certified the unit to be fully waterproof sealed with O-rings and charged with nitrogen to avoid any internal fogging on the lens.
So if your panel is 2 feet wide, the maximum size of the air gap = 2â/1.414 = 1.4â². That corresponds to a quarter wavelength frequency of 1/4(1125/gap) = 199 Hz. Assume the acoustic panel is 6â³ thick, then the longest quarter wavelength for this absorber is closer to 2 feet, which corresponds to a frequency of 140 Hz.