Sutro Tower
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Sutro Tower
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| Basic data | |||||
| Place: | San Francisco | ||||
| State: | California | ||||
| Country: | United States | ||||
| Altitude : | 247 m | ||||
| Coordinates: 37 ° 45 ′ 18.8 " N , 122 ° 27 ′ 9.7" W. | |||||
| Use: | Broadcasting station | ||||
| Accessibility: | Transmission tower not open to the public | ||||
| Tower data | |||||
| Construction time : | 1971-1972 | ||||
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| Operating time: | since July 4, 1973 | ||||
| Total height : | 297.7 m | ||||
| Data on the transmission system | |||||
| Waveband : | VHF | ||||
| Radio : | VHF broadcasting | ||||
| Send type: | NTSC | ||||
| Position map | |||||
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The Sutro Tower is a 297.7 meter high transmission tower in San Francisco, California . The steel lattice tower is located on the 254 meter high Mount Sutro . Both the tower and the mountain bear the names of Adolph Sutro (1830–1898), a successful businessman and former mayor of San Francisco. The transmission tower has been the second tallest structure in the city since the Salesforce Tower was completed in 2018, but it towers above the famous Transamerica Pyramid skyscraper and is also the fourth tallest free-standing structure in California .
history
As early as 1966, a company was formed from several broadcasters to create space for a new broadcast tower by demolishing the mansion on Mount Sutro. Despite the height and proximity to San Francisco International Airport , the responsible authorities gave the green light for the building.
The transmission tower, which is not open to the public, was built between 1971 and 1972; The tower began broadcasting on July 4, 1973.
description
Building
The striking steel construction consists of three load-bearing pillars, which are connected and supported on five levels by cross braces. The transmission tower is built on a concrete foundation of around 3,750 cubic meters and a weight of 1,700 tons. It was designed in such a way that the center of gravity of the tower is below the ground in order to ensure better stability in the event of an earthquake . According to calculations, it would have survived the 1906 San Francisco earthquake without damage.
Station table
Various antennas for broadcasting four radio and eleven television programs are installed on the top and on the intermediate floors. In addition, the tower serves as a transmitter for other communication media.
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Web links
- Sutro Tower. In: Structurae
- Official website of the operator Sutro Tower Inc.
- Report on the Sutro Tower (English)
- San Francisco Planning Department: Sutro Tower Digital Television Project (pdf)
- fybush.com: Sutro Tower, San Francisco
- Private website for the Sutro Tower with extensive pictures and documentation of the antenna change
Individual evidence
- ↑ Federal Communications Commission : Antenna Structure Registration (Sutro Tower)
- ^ A Brief History of Sutro Tower
- ↑ FAQ Sutro Tower ( Memento of the original from January 11, 2011 in the Internet Archive ) Info: The archive link was inserted automatically and not yet checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ Transmitter table of the Sutro Tower ( Memento of the original from January 14, 2011 in the Internet Archive ) Info: The archive link has been inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
