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NSS Annapolis

1918 establishments in MarylandAll accuracy disputesBuildings and structures in Anne Arundel County, MarylandClosed installations of the United States NavyCommunications and electronic installations of the United States Navy
Communications in MarylandMaryland building and structure stubsMilitary installations closed in 1999Military radio systemsTowers in MarylandUnited States mast stubs
NSS Annapolis Towers
NSS Annapolis Towers

NSS Annapolis, officially known as Naval Communications Station Washington, D.C. Transmitter or NavCommStaWashingtonDC(T), was a Very Low Frequency (VLF) and High Frequency (HF) transmitter station operated by the United States Navy. It was located at Greenbury Point, in Anne Arundel County, across the Severn River from Annapolis, Maryland at coordinates 38°58′40″N 76°27′12″W. NSS Annapolis was used by the USN for submarine communication. The station consisted of an umbrella antenna supported by a 1,200-foot (365.76 m) high central mast, which was insulated against ground, 6 guyed masts of 800-foot (243.84 m) all of which were built in 1969 and three 600-foot freestanding towers built earlier. Originally the station consisted of nine 600-foot-tall self-supporting lattice towers, the tallest of their kind built in the United States to that date. The first four of which were built in 1918, followed by two more in 1922 and the final three in 1938. As of 2020, only the three built in 1938 remaining standing. The huge towers were a local landmark, and served as a visual reporting point for aircraft landing at the nearby Baltimore-Washington International (BWI) airport. A golf course runs through the former HF antenna farm; special rules addressed hitting a tower with a ball (usually stroke and distance). The NSS HF receiver station, and the headquarters for NavCommStaWashingtonDC(T), was located at the Naval Communications Station in Cheltenham, Maryland until 1969. In late 1969, the receiver station at Cheltenham closed and a new receiving station was activated at Sugar Grove, West Virginia. NSS began transmitting in September 1918 using a pair of Federal Electric 500 kilowatt Poulson Arc transmitters. However, arc transmitters were significantly inferior to the then state-of-the-art Alexanderson alternator and one of the arc transmitters was replaced by a more modern TAW 300 kilowatt vacuum tube transmitter in 1931. VLF, or "longwave" radio was the standard at the time for long-range radio transmission, only to be replaced by shortwave in the early 1930s. VLF later became essential for communicating with submerged submarines, a critically important capability as submarines became strategic missile platforms. The NSS transmitter fed one million watts of radio energy to its antenna, and during idle times, transmitted the string "W W W VVV VVV VVV DE NSS NSS NSS" in Morse code. The power was so high and the frequency so low, one could hear the signal on practically any kind of receiver anywhere in the Annapolis area. Messages were also sent in Morse code, but were either prearranged code signals or were encrypted. Rendered obsolete by satellite technology and the end of the cold war, NSS ceased operation and all of the antennas and most of the towers were demolished in 1999. Three of the smaller 600-foot towers were preserved near the tip of Greenbury Point to serve as aids to navigation for boaters on the Chesapeake Bay. The callsign, operating from Annapolis, was brought back for the May 8, 2021 Armed Forces Day radio test. This is an annual event when amateur radio operators can work through crossband communications with certain military stations. However the station was active for only 16 hours.

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NSS Annapolis
West Road,

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Latitude Longitude
N 38.977777777778 ° E -76.453333333333 °
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West Road

West Road
21402
Maryland, United States
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NSS Annapolis Towers
NSS Annapolis Towers
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Wesley Brown Field House
Wesley Brown Field House

The Wesley Brown Field House is a sports arena at the United States Naval Academy in Annapolis, Maryland. It is located between the 7th Wing of Bancroft Hall and Santee Basin. The 140,000-square-foot (13,000 m2) facility houses physical education, varsity sports, club sports, and personal-fitness programs and equipment. It is home to the Midshipmen women's volleyball team, men's and women's indoor track and field teams, men's wrestling, women’s lacrosse team and sixteen club sports. It also serves as the practice space for the football and women's volleyball teams. There is also a centralized sports-medicine facility. The building has a total room area of 5,800 square feet (540 m2), eight locker rooms, and 300 lockers.The field house has a full-length, 76,000-square-foot (7,100 m2), retractable Magic Carpet AstroTurf football field. When the field is retracted, students can then use the 200-meter AstroTurf track with a Mondo track surface and hydraulically-controlled banked curves and three permanent basketball courts. In four to six hours, the indoor track-and-field can be changed to an indoor football practice field, including target goalposts for placekicking practice. The synthetic playing surface (with football-field yard-lines) is stored on a spool at the field house's south end. The surface is put in place by nine winches and an 18-port air-blower that makes the turf float across the field-house floor while being deployed and retracted.The weight room is one of three "strength and conditioning facilities" at the academy. With 6,500 square feet (600 m2), it serves the members of the following teams: men's and women's cross country, men's and women's soccer, men's and women's track, golf, sprint football, volleyball, water polo, and women's lacrosse.The facility is named for the first African American to graduate from the Academy, retired Lt. Cmdr. Wesley A. Brown, who graduated in 1949. The groundbreaking ceremony was held on March 25, 2006. Brown wielded a shovel in the groundbreaking. Hensel Phelps Construction Company constructed the field house, which was completed in March 2008. The U.S. Naval Facilities Engineering Command (NAVFAC) administered the contract for construction. The building was dedicated on May 10, 2008. Brown participated in the ribbon-cutting ceremony with Chairman of the Joint Chiefs of Staff Adm. Mike Mullen, Naval Academy Superintendent Vice Adm. Jeffrey L. Fowler, and Maryland Governor Martin O’Malley. Also present were almost one thousand guests.