2019_08_27_mt-wilson_073 : 無料・フリー素材/写真
2019_08_27_mt-wilson_073 / Nfrastructure
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
|---|---|
| 説明 | The old and still very operative NBC tower, at the transmitter farm atop Mt. Wilson, standing a mile above Los Angeles. The tower is called Antenna Structure Registration 1026532. Built in 1998, owned by NBC Universal. Details:Structure Coordinates: 34-13-32.0 N 118-3-55.0 W (NAD 83)Site Elevation: 1731 meters (5679 ft)Height of Structure: 137 meters (449 feet)Overall Height Above Ground: 166 meters (545 feet)Overall Height Above Mean Sea Level: 1897 meters (6224 feet)On top, in pale red, is, KNBC/4No repackingChannel 36, virtual 4ERP: 665 kW Polarization: Elliptically polarizedHAAT: 991 m (3251 ft.)Electrical Beam Tilt: 1 degreeR/C AGL: 160 m (525 ft.) R/C AMSL: 1891 m (6204 ft.) Site Elevation: 1731 m. (5679 ft.)Height Overall*: 166 m (545 ft.)Directional Antenna - Antenna Make/Model: DIELECTRIC TFU-18GTH/VP-R O6Below that, in orange-red, is KVEA/25:Repacking Information: Pre-Repack Channel: 39 Post-Repack Channel: 25 Post-Repack ERP: 748 kW ERP: 620 kW Polarization: Elliptically polarizedHAAT: 988.9 m (3244 ft.)Electrical Beam Tilt: 1.60 degreesR/C AGL: 144 m (472 ft.) R/C AMSL: 1875 m (6152 ft.) Site Elevation: 1731 m. (5679 ft.)Height Overall*: 166 m (545 ft.)Directional Antenna - Antenna Make/Model: DIELECTRIC TFU-22EBT/VP-R O8Antenna ID: 1004933Below that, side-mounted and white, is a highly directional aux for both:KNBC, repacked on channel 36:ERP: 600 kW Polarization: Horizontally polarizedHAAT: 958.3 m (3144 ft.)Electrical Beam Tilt: 1.8 degreesR/C AGL: 113.4 m (372 ft.) R/C AMSL: 1844.4 m (6051 ft.) Site Elevation: 1731 m. (5679 ft.)Height Overall*: 166 m (545 ft.)Directional Antenna - Antenna Make/Model: R.F. Systems RD16C170500626L3SKVEA, repacked on channel 25, is identical, but with an ERP of 300 kW |
| 撮影日 | 2019-08-27 15:40:50 |
| 撮影者 | Nfrastructure |
| タグ | |
| 撮影地 | |
| カメラ | Canon EOS 5D Mark III , Canon |
| 露出 | 0.004 sec (1/250) |
| 開放F値 | f/10.0 |
| 焦点距離 | 45 mm |