Ebright Azimuth: Difference between revisions

Ebright Azimuth
Ebright Azimuth
	The monument sign for Ebright Azimuth, the highest point in Delaware as of September 2016
Highest point
Elevation	448 ft (137 m)
Prominence	32 ft (9.8 m)
Listing	U.S. state high point 49th
Coordinates	39°50′09″N 75°31′09″W / 39.83574°N 75.51915°W
Geography
	Ebright Azimuth Location of Ebright Azimuth in Delaware Ebright Azimuth Ebright Azimuth (the United States)
Location	New Castle County, Delaware, United States
Climbing
Easiest route	Paved road

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Southbound view of the peak of Ebright Azimuth from the state line, April 2006

The Ebright Azimuth is the point with the highest benchmark monument elevation in the U.S. state of Delaware. It is marked with a geodetic benchmark monument and has an elevation of 447.85 feet (136.50 m) above sea level. The only state high-point with a lower elevation is Britton Hill in the state of Florida at 345 feet (105 m) above sea level.

Description

The Ebright Azimuth^[4] is located about 6.5 miles (10.5 km) north of downtown Wilmington, Delaware, in far northern New Castle County, within a few feet of the Pennsylvania state line. It is near Concord High School, to the north of Naamans Road, at the middle of the intersection of Ebright Road and Ramblewood Drive. This is an entrance to the Dartmouth Woods development.

Surveying by Delaware Geological Survey personnel indicates that the mobile home park just west of Ebright Road is at least 2 feet (61 cm) higher than the benchmark.^[1]^[2]

Ebright Azimuth is named after James and Grant Ebright, who owned the property on which the benchmark was placed.^[4] An azimuth is an angular measurement in a spherical coordinate system.

Since the schematic photograph was taken the blue and yellow monument sign has been moved across the street closer to the geodetic marker. A curb extension has been installed, and the area around the sign has been modestly landscaped.

Radio tower history

The self-supporting radio tower just south of the benchmark was constructed in 1947 by Western Union as part of a historic C-band microwave radio relay system that linked New York City and Washington, D.C. This site was assigned the name "Brandywine" in recognition of Brandywine Creek located several kilometers to the west and was licensed with the call sign KGB29.^[5] Western Union's engineers specified a heavy-duty prefabricated fire tower structure, which allowed the microwave transmitters and receivers to be installed inside the cab. "Dish" antennas, mounted behind the window openings, were aimed towards the adjacent relay stations at Mt. Laurel, New Jersey, 33.8 miles (54.4 km) to the northeast, and Elk Neck near Elkton, Maryland, 30.5 miles (49.1 km) to the southwest.^[6]

Like most of their early microwave relay sites, Western Union decommissioned the Brandywine installation near Ebright Azimuth as more-reliable broadband fiber systems were developed. The structure now supports several VHF and UHF land mobile radio antennas.

References

^ ^a ^b "Highest Point in Delaware". Delaware Geological Survey. Retrieved 2008-12-17.
^ ^a ^b "Regarding the highest point in Delaware". Delaware Repeater Association. Archived from the original on 2009-03-06. Retrieved 2008-12-17.
^ "Ebright Azimuth, Delaware". Peakbagger.com. Retrieved 2012-10-17.
^ ^a ^b "Ebright". NGS Data Sheet. National Geodetic Survey, National Oceanic and Atmospheric Administration, United States Department of Commerce.
^ "Radio Stations Operated by the Western Union Telegraph Company" (JPG). Plant and Engineering Department. Western Union Telegraph Company (archived by A Secret Landscape). 1959. Retrieved 2008-12-17.
^ "Radio Relay Systems". New York, Washington, Pittsburg. archived by A Secret Landscape. Retrieved 2008-12-11.

External links

"Historic Markers with Google Maps". State of Delaware. Retrieved 2008-12-17.

[dgs-1] "Highest Point in Delaware". Delaware Geological Survey. Retrieved 2008-12-17.

[Schenck-2] "Regarding the highest point in Delaware". Delaware Repeater Association. Archived from the original on 2009-03-06. Retrieved 2008-12-17.

[pb-3] "Ebright Azimuth, Delaware". Peakbagger.com. Retrieved 2012-10-17.

[ngs-4] "Ebright". NGS Data Sheet. National Geodetic Survey, National Oceanic and Atmospheric Administration, United States Department of Commerce.

[5] "Radio Stations Operated by the Western Union Telegraph Company" (JPG). Plant and Engineering Department. Western Union Telegraph Company (archived by A Secret Landscape). 1959. Retrieved 2008-12-17.

[6] "Radio Relay Systems". New York, Washington, Pittsburg. archived by A Secret Landscape. Retrieved 2008-12-11.

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@@ Line 1: / Line 1: @@
+{{Short description|Hill in Delaware, United States}}
 {{Infobox mountain
 | name = Ebright Azimuth
-| photo = Azimuth05.jpg
+| photo = Ebright Azimuth sign - SEP 2016.jpg
-| photo_caption = Southbound View of the Peak from the State Line
+| photo_caption = The monument sign for Ebright Azimuth, the highest point in Delaware as of September 2016
 | elevation_ft = 448
 | elevation_ref = <ref name=dgs/><ref name=Schenck/>
 | prominence_ft = 32
-| prominence_ref = <ref name="pb">{{cite peakbagger |pid=7156 |name=Ebright Azimuth, Delaware |accessdate=2012-10-17}}</ref>
+| prominence_ref = <ref name="pb">{{cite peakbagger |pid=7156 |name=Ebright Azimuth, Delaware |access-date=2012-10-17}}</ref>
 | listing = [[List of U.S. states by elevation|U.S. state high point]] 49th
-| map = Delaware
+| map = Delaware#USA
 | map_size = 180
 | map_caption = Location of Ebright Azimuth in Delaware
 | label_position = left
 | location = [[New Castle County, Delaware]], [[United States]]
+| coordinates = {{coord|39.83574|N|75.51915|W|type:mountain_scale:100000|format=dms|display=inline,title}}
-| lat_d = 39.83574
+| easiest_route = Paved road
-| long_d = -75.51915 <!-- see discussion on talk page -->
 }}
+[[File:Ebright Azimuth Delaware Sign 3008px.jpg|thumb|right|Elevation marker, August 2006]]
+[[File:Azimuth05.jpg|thumb|right|Southbound view of the peak of Ebright Azimuth from the state line, April 2006]]
 The '''Ebright Azimuth''' is the point with the highest benchmark monument elevation in the [[U.S. state]] of [[Delaware]]. It is marked with a [[Geodesy|geodetic]] benchmark monument and has an elevation of {{convert|447.85|ft|m|2}} above [[sea level]]. The only state high-point with a lower elevation is [[Britton Hill]] in the state of [[Florida]] at {{convert|345|ft|m|0}} above sea level.
+==Description==
-The Ebright Azimuth<ref name="ngs">{{cite ngs |pid=JU3626 |name=Ebright}}</ref> is located about {{convert|6.5|mi|km|1}} north of downtown [[Wilmington, Delaware|Wilmington]], [[Delaware]], in far northern [[New Castle County, Delaware|New Castle County]], within a few feet of the [[Pennsylvania]] state line. It is near Concord High School, to the north of [[Delaware Route 92|Naamans Road]], at the middle of the intersection of Ebright Road and Ramblewood Drive. This is an entrance to the Dartmouth Woods development.
+The Ebright Azimuth<ref name="ngs">{{cite ngs |pid=JU3626 |name=Ebright}}</ref> is located about {{convert|6.5|mi|km|1}} north of downtown [[Wilmington, Delaware|Wilmington]], [[Delaware]], in far northern [[New Castle County, Delaware|New Castle County]], within a few feet of the [[Pennsylvania]] state line. It is near [[Concord High School (Delaware)|Concord High School]], to the north of [[Delaware Route 92|Naamans Road]], at the middle of the intersection of Ebright Road and Ramblewood Drive. This is an entrance to the Dartmouth Woods development.
-Surveying by Delaware Geological Survey personnel indicates that the mobile home park just west of Ebright Road is at least {{convert|2|ft|cm|0}} higher than the benchmark.<ref name=dgs>
+Surveying by [[Delaware Geological Survey]] personnel indicates that the mobile home park just west of Ebright Road is at least {{convert|2|ft|cm|0}} higher than the benchmark.<ref name=dgs>{{cite web|url=http://www.dgs.udel.edu/delaware-geology/highest-point-delaware|title=Highest Point in Delaware|publisher=Delaware Geological Survey|access-date=2008-12-17}}</ref><ref name=Schenck>{{cite web|url=http://www.dra73.org/highestpoint.html|archive-url=https://web.archive.org/web/20090306204724/http://www.dra73.org/highestpoint.html|archive-date=2009-03-06|title=Regarding the highest point in Delaware|publisher=Delaware Repeater Association|access-date=2008-12-17 }}</ref>
-  {{cite web
-  | url = http://www.dgs.udel.edu/delaware-geology/highest-point-delaware
-  | title = Highest Point in Delaware
-  | publisher = Delaware Geological Survey
-  | accessdate = 2008-12-17 }}</ref><ref name=Schenck>
-  {{cite web
-  | url = http://www.dra73.org/highestpoint.html
-  | archiveurl = https://web.archive.org/web/20090306204724/http://www.dra73.org/highestpoint.html
-  | archivedate = 2009-03-06
-  | title = Regarding the highest point in Delaware
-  | publisher = Delaware Repeater Association
-  | accessdate = 2008-12-17 }}</ref>
-"Ebright Azimuth" is not a person's first and last name. James and Grant Ebright owned the property on which the benchmark was placed.<ref name="ngs"/>
+Ebright Azimuth is named after James and Grant Ebright, who owned the property on which the benchmark was placed.<ref name="ngs"/> An [[azimuth]] is an angular measurement in a spherical coordinate system.
+Since the schematic photograph was taken the blue and yellow monument sign has been moved across the street closer to the [[Survey marker|geodetic marker]]. A curb extension has been installed, and the area around the sign has been modestly landscaped.
-Since the schematic photograph was taken the blue and yellow monument sign has been moved across the street closer to the geodetic marker. A curb extension has been installed and the area around the sign has been modestly landscaped.
 == Radio tower history ==
-The self-supporting [[Radio masts and towers|radio tower]] just south of the benchmark was constructed in 1947 by [[Western Union]] as part of an historic [[C band (IEEE)|C-band]] [[microwave radio relay]] system that linked [[New York City]] and [[Washington, D.C.]]  This site was assigned the name "Brandywine" in recognition of [[Brandywine Creek (Christina River)|Brandywine Creek]] located several kilometers to the west and was licensed with the [[call sign]] KGB29.<ref>
+The self-supporting [[Radio masts and towers|radio tower]] just south of the benchmark was constructed in 1947 by [[Western Union]] as part of a historic [[C band (IEEE)|C-band]] [[microwave radio relay]] system that linked [[New York City]] and [[Washington, D.C.]]  This site was assigned the name "Brandywine" in recognition of [[Brandywine Creek (Christina River)|Brandywine Creek]] located several kilometers to the west and was licensed with the [[call sign]] KGB29.<ref>{{cite web|url=http://coldwar-c4i.net/WU/station_list_1.jpg|title=Radio Stations Operated by the Western Union Telegraph Company|work=Plant and Engineering Department|publisher=Western Union Telegraph Company (archived by A Secret Landscape)|year=1959|format=JPG|access-date=2008-12-17}}</ref>
+Western Union's engineers specified a heavy-duty prefabricated [[Fire lookout tower|fire tower]] structure, which allowed the microwave transmitters and receivers to be installed inside the cab.  [[Parabolic antenna|"Dish" antennas]], mounted behind the window openings, were aimed towards the adjacent relay stations at [[Mount Laurel Township, New Jersey|Mt. Laurel, New Jersey]], {{convert|33.8|mi|km}} to the northeast, and Elk Neck near [[Elkton, Maryland]], {{convert|30.5|mi|km}} to the southwest.<ref>{{cite web|url=http://coldwar-c4i.net/WU/DC_Pitts_NYC-map.jpg|title=Radio Relay Systems|work=New York, Washington, Pittsburg|publisher=archived by A Secret Landscape|access-date=2008-12-11}}</ref>
-  {{cite web
-  | url = http://coldwar-c4i.net/WU/station_list_1.jpg
-  | title = Radio Stations Operated by the Western Union Telegraph Company
-  | work = Plant and Engineering Department
-  | publisher = Western Union Telegraph Company (archived by A Secret Landscape)
-  | year = 1959
-  | format = JPG
-  | accessdate = 2008-12-17 }}</ref>
-Western Union's engineers specified a heavy-duty prefabricated [[Fire lookout tower|fire tower]] structure, which allowed the microwave transmitters and receivers to be installed inside the cab.  [[Parabolic antenna|"Dish" antennas]], mounted behind the window openings, were aimed towards the adjacent relay stations at [[Mount Laurel Township, New Jersey|Mt. Laurel, New Jersey]], {{convert|33.8|mi|km|1}} to the northeast, and Elk Neck near [[Elkton, Maryland]], {{convert|30.5|mi|km|1}} to the southwest.<ref>
-  {{cite web
-  | url = http://coldwar-c4i.net/WU/DC_Pitts_NYC-map.jpg
-  | title = Radio Relay Systems
-  | work = New York, Washington, Pittsburg
-  | publisher = archived by A Secret Landscape
-  | accessdate = 2008-12-11 }}</ref>
 Like most of their early microwave relay sites, Western Union decommissioned the Brandywine installation near Ebright Azimuth as more-reliable broadband [[Fiber-optic communication|fiber]] systems were developed.  The structure now supports several [[VHF]] and [[UHF]] [[Land Mobile Radio System|land mobile radio]] antennas.
 ==See also==
+* {{portal-inline|Geography}}
-[[File:Ebright Azimuth Delaware Sign 3008px.jpg|thumb|right|Elevation marker]]
+* {{portal-inline|Mountains}}
-*[[Outline of Delaware]]
-*[[Index of Delaware-related articles]]
+* [[List of U.S. states by elevation]]
-*[[List of U.S. states by elevation]]
-== References ==
+==References==
-{{reflist}}
+{{reflist|33em}}
-== External links ==
+==External links==
+{{commons+cat|Ebright Azimuth}}
-* {{cite web
-  | url = http://archives.delaware.gov/markers/
+* {{cite web|url=http://archives.delaware.gov/markers/|title=Historic Markers with Google Maps|publisher=State of Delaware|access-date=2008-12-17}}
-  | title = Historic Markers with Google Maps
-  | publisher = State of Delaware
-  | accessdate = 2008-12-17 }}
 {{Delaware}}
 {{U.S. State Highest Points}}
-[[Category:Geography of Delaware]]
+[[Category:Landforms of Delaware]]
-[[Category:Geography of New Castle County, Delaware]]
+[[Category:Landforms of New Castle County, Delaware]]
 [[Category:Highest points of U.S. states]]

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