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VHF is the first band at which wavelengths are small enough that efficient transmitting antennas are short enough to mount on vehicles and handheld devices, a quarter wave whip antenna at VHF frequencies is 25 cm to 2.5 meter (10 inches to 8 feet) long.
In 2013, the New York Racing Association placed a blue-and-white checkered pole at Belmont Park to mark that winning margin; using Equibase's official measurement of a length—8 feet 2 inches (2.49 m)—the pole was placed 253 feet 2 inches (77.17 m) from the finish line.
87.5 FM is the first useable radio broadcast frequency on the FM radio band spanning between 87.5 and 108 FM or VHF Band 2.The use of 87.5 FM as the main carrier frequency of a legally established and licensed radio station is rare in most countries as it transmits signals slightly off band down to roughly 87.3 and possibly as low as 87.2 FM.
In terms of judging a person's speed, the best method of timing is through lasers which start and stop the times when passed through. A laser start (from a stationary position) is more accurate for measuring pure speed as it does not register a runner's reaction time, however, this method of timing a 40-yard dash can affect the accuracy by as much as 0.5 seconds with the manual stopwatch method.
The state's lowest elevation is 3,317 feet (1,011 m) at the point on the eastern boundary of Yuma County where the Arikaree River flows into the state of Kansas. [8] This is the highest low point of any state, and Colorado and Wyoming are the only two states that lie entirely above 3000 feet (1000 m) elevation.
With an average high tide of 6 feet (1.8 m), the depth clearances will become 60 feet (18 m) and 58 feet, respectively. At 52 feet (16 m), the Port of Charleston is the deepest harbor on the East Coast. [158] Part of Union Pier Terminal in Charleston is a cruise ship passenger terminal hosting numerous cruise departures annually through 2019.
The Mount Washington Auto Road—originally the Mount Washington Carriage Road—is a 7.6-mile (12.2 km) private toll road on the east side of the mountain, rising 4,618 feet (1,408 m) from an altitude of 1,527 feet (465 m) at the bottom to 6,145 feet (1,873 m) at the top, an average gradient of 11.6%. The road was completed and opened to the ...
However using the above kinds of iterative analysis, one can calculate the performance of a given a set of parameters and adjust them to optimize the gain (perhaps subject to some constraints). Since with an n element Yagi–Uda antenna, there are 2 n − 1 parameters to adjust (the element lengths and relative spacings), this iterative ...