Farnsworth Peak

Farnsworth Peak is a peak located on the northern end of the Oquirrh Mountain range, approximately south east of Lake Point, Utah and south west of Salt Lake City, Utah, United States. The mountain is named for Philo Farnsworth, the inventor of the first completely electronic television. It is used mainly for radio and television transmission, but could potentially become part of a ski resort owned by nearby Kennecott Land. On the eastern side of the mountain, the land is completely private, and access is restricted. The peak can be reached by hiking from the Tooele side, which is mostly public land. The Bureau of Land Management land extends from Ridge Peak west to the base of the mountain. Public access to this land is available off SR-36 near Lake Point, Utah. Several cattle gates need to be opened and closed, but are access roads to hiking, mountain biking, and horseback riding areas.

Radio and television use

Farnsworth Peak, in local radio terms, refers to three separate radio transmitter sites. They are known as "Big Farnsworth," "The KSTU Site," and "Little Farnsworth." Each site hosts a number of transmission towers which broadcast radio and television stations. Extensive studies of RF radiation from the site were conducted in 2003 in an effort to aid engineers who work on the mountain.

FM Terrestrial stations with transmitters on Farnsworth Peak Farnsworth Peak contains a vast majority of Salt Lake FM signals. The following is a complete list of FM stations with transmitters located on (or around) Farnsworth Peak. CALLSIGN FREQUENCY FORMAT KUER 90.1 Public radio/news KRCL 90.9 Public radio KUUU 92.5 Hip hop KUBL 93.3 Country KODJ 94.1 Classic hits KXRK 96.3 Alternative rock KZHT 97.1 CHR KBZN 97.9 Hot adult contemporary KBEE 98.7 Adult contemporary KSFI 100.3 Soft adult contemporary KBER 101.1 Active rock KHTB 101.9 CHR KSL-FM 102.7 News/Talk KRSP 103.5 Classic rock KSOP-FM 104.3 Country KUDD 105.1 Top 40/CHR KNRS 105.9 News/Talk KAAZ-FM 106.7 Rock KKLV 107.5 Contemporary Christian Radio-Locator Salt Lake City Stations

FM amateur (ham) radio repeaters on Farnsworth Peak Local television networks KSL-TV, KSTU and other sites on Farnsworth Peak have provided space for amateur radio repeater operation. Farnsworth peak serves as a major hub, connecting western and southern Utah to the Utah Intermountain Intertie main hub repeater a top the Snowbird Tram on Hidden Peak. CALLSIGN FREQUENCY OFFSET TONE SITE KI7DX 53.15 MHz (-) 1.0 MHz 146.2 Hz KSTU KF6RAL 145.125 MHz (-) 0.6 MHz D-Star W7SP 146.62 MHz (-) 0.6 MHz KSL-TV K7JL 146.94 MHz (-) 0.6 MHz 88.5 Hz KSTU K7JL 147.12 MHz (+) 0.6 MHz 100.0 Hz KSTU KF6RAL 448.075 MHz (-) 5.0 MHz D-Star KI7DX 448.15 MHz (-) 5.0 MHz 127.3 Hz KSTU K7JL 449.15 MHz (-) 5.0 MHz 100.0 Hz K7JL 449.5 MHz (-) 5.0 MHz 100.0 Hz K7OJU 1285. MHz (-) 12.0 MHz 88.5 Hz KF6RAL 1287. MHz (-) 12.0 MHz D-Star KF6RAL 1299.25 MHz simplex D-Star

Television stations Farnsworth Peak is home to several full service television stations. KSL-TV is perhaps the best known transmitter site on the mountain, but the peak houses transmitters for KSTU-TV, the local Fox affiliate, KUCW (The CW), and KUTV (CBS) among others. KTMW, an independent station and KUPX, the local Ion affiliate, now broadcast their digital signals from Little Farnsworth Peak about 0.45 miles to the south. KSL-TV was the first television station to use the mountain for broadcasting. It also is responsible for transmitters on the mountain, having engineers on site for periods of time in case of emergencies. A large number of the television stations located on the peak previously carried their analog signals from the same sites. Farnsworth Peak was one of the first places in the United States to construct a facility specifically for digital television transmission. Specifically, Farnsworth Peak houses transmitters for the following stations:

Call sign Channel (via PSIP) Network KUTV 2 CBS KTVX 4 ABC KSL-TV 5 NBC KUED 7 PBS KUEN 9 Independent KULX-CD 10 Telemundo KBYU 11 BYU TV KSTU 13 Fox KJZZ-TV 14 Independent KUPX 16 Ion Television KTMW 20 Telemundo KBTU-LD 23 MundoMax KPNZ 24 Estrella TV KSVN-CD 25 Azteca KUCW 30 The CW KSUD-LD 33 Daystar K39JS-D 39 Azteca (translator of KSVN-CD) KEJT-CD 50 Telemundo

Lightning incident On September 13, 2009, lightning struck the tower carrying a majority of the area's digital television signals. The lightning strike took eight stations in total off the air, and damaged the combiner for the tower. According to the engineers on site, the combiner was leaking oil. The lightning strike of the tower also caused a failure of the waveguide switch control system, which caused it to display improperly. A waveguide switch is part of the transmission circuitry. An engineer on site was able to correct that situation within hours, but the combiner would not be working for a few more hours. By the next day, the problem had been fixed and the stations were back on the air and all were in working order.

2020 Salt Lake City Earthquake On March 18, 2020, a 5.7 magnitude earthquake occurred north-northeast of Magna, Utah, east of Farnsworth Peak. A number of radio and television stations experienced interruptions after power was lost on the mountain, but were able to return to air within seconds. Farnsworth Peak has generators for emergencies.

Farnsworth Peak

Bron en licentie