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A sailboat's mast is supported by shrouds (side-to-side) and stays (fore-and-aft) – nautical equivalents of guy wires.. A guy-wire, guy-line, guy-rope, down guy, or stay, also called simply a guy, is a tensioned cable designed to add stability to a freestanding structure.
Guyed masts are frequently used for radio masts and towers. The mast can either support radio antennas (for VHF, UHF and other microwave bands) mounted at its top, or the entire structure itself can function as a mast radiator antenna (for VLF, LF, MF). In the latter case, the mast needs to be insulated from the ground. Guyed radio masts are ...
Tallest ever mast aboard any ship. It was replaced by horizontal wire antenna between two shorter masts. KTUL Tower Coweta, OK: December 26, 1987: Lattice steel guyed tower 582 Ice storm Listed at 1909 feet a mast in NRTA Transmitting Station 501, Anning, Kunming, Yunnan, China: January 1988: Guyed steel lattice mast 143.5 Material fault and ...
A transmatch (antenna tuner) is not required to use this antenna near its nominal design frequency of 14 MHz, and judicious length adjustments can sometimes include one other frequency band. All other frequencies require a transmatch. [citation needed] There are many variants of the G5RV antenna. Two variations of the G5RV design, called ZS6BKW ...
The second-tallest structure in Nevada is the Moapa Entravision Tower at Moapa, a 426.7 m (1,400 ft) tall guyed TV mast at Moapa erected in 2008, the third-tallest is the 401 m (1,316 ft) tall Moapa Kemp Tower at Moapa, the fourth-tallest is Stratosphere Tower near downtown Las Vegas, which was erected in 1994–96 and reaches 1,149 ft (350 m ...
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If the mast has a long, thin cross-section and makes up a significant area of the airfoil, it is called a wing-mast; boats using these have a smaller sail area to compensate for the larger mast area. There are many manufacturers of modern masts for sailing yachts of all sizes, a few notable companies are Hall Spars, Offshore Spars, and Southern ...
[1] [2] The OPV will use the UNIted COmbined Radio aNtenna (UNICORN) NORA-50 integration mast, which has a bar-shaped dome that houses the antennas for tactical data link, Tactical Air Navigation System (TACAN), and communications. According to ATLA, UNICORN has a shape designed to reduce the radar cross section (RCS), which makes it stealthy.
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