File:2020 07 26 mt-wilson045 (50170037698).jpg
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Summary
Description2020 07 26 mt-wilson045 (50170037698).jpg |
This is the top of the tower known officially as <a href="https://fccinfo.com/CMDProASRLookup.php?tabSearchType=ASR+Search&sASR=1026532&HorizAMSL=1844.4&CallLetters=KNBC" rel="noreferrer nofollow">ASR 1026532</a> and in the vernacular as the NBC tower on Mt. Wilson. The particulars: Date Constructed: 11/23/1999 Structure Coordinates: 34-13-32.0 N 118-3-55.0 W (NAD 83) Structure Address: E End Of Audio Video Rds Structure City: Mount Wilson, CA Structure County: Los Angeles County 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) Owner Info NBC Subsidiary (KNBC-TV) LLC c/o NBCUniversal On top is KNBC/4, transmitting on channel 36. Details: ERP: 665 kW Polarization: Elliptically polarized HAAT: 991 m (3251 ft.) Electrical Beam Tilt: 1 degree R/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 O6 Antenna ID: 69336 Polarization: Elliptically polarized Next down is KVEA/25, which is back on 25 in the repack after operating on channel 39 since the digital transition in '08. Particulars: Repacking Information: Pre-Repack Channel: 39 Post-Repack Channel: 25 Post-Repack ERP: 748 kW ERP: 620 kW Polarization: Elliptically polarized HAAT: 988.9 m (3244 ft.) Electrical Beam Tilt: 1.60 degrees R/C AGL: 144 m (472 ft.) R/C AMSL: 1875 m (6152 ft.) Directional Antenna - Antenna Make/Model: DIELECTRIC TFU-22EBT/VP-R O8 Antenna ID: 1004933 Polarization: Elliptically polarized Phase: 2 Completion Deadline: 4/12/2019 The two stations also share an aux antenna side-mounted below the two on top: Polarization: Horizontally polarized HAAT: 958.3 m (3144 ft.) Electrical Beam Tilt: 1.8 degrees R/C AGL: 113.4 m (372 ft.) R/C AMSL: 1844.4 m (6051 ft.) Directional Antenna - Antenna Make/Model: R.F. Systems RD16C170500626L3S Antenna ID: 1004564 Polarization: Horizontally polarized On that one KNBC is 600kw and KVEA is 300kw. Mouse over for locations of the antennas. Note: at earlier times some FMs operated on this tower, but none are there now. |
Date | |
Source | 2020_07_26_mt-wilson045 |
Author | Doc Searls |
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This image was originally posted to Flickr by Nfrastructure at https://flickr.com/photos/46167543@N05/50170037698. It was reviewed on 11 July 2021 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
11 July 2021
Captions
Items portrayed in this file
depicts
26 July 2020
0.003125 second
7.1
105 millimetre
100
image/jpeg
0dd3525547fd6843450551c4b4654a3a5f5d53ce
2,542,123 byte
4,735 pixel
1,465 pixel
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 06:46, 11 July 2021 | ![]() | 1,465 × 4,735 (2.42 MB) | Sammi Brie | Transferred from Flickr via #flickr2commons |
File usage
Metadata
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Camera manufacturer | Canon |
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Camera model | Canon EOS 5D Mark III |
Author | Tangent Mind llc |
Exposure time | 1/320 sec (0.003125) |
F-number | f/7.1 |
ISO speed rating | 100 |
Date and time of data generation | 13:53, 26 July 2020 |
Lens focal length | 105 mm |
Width | 3,840 px |
Height | 5,760 px |
Bits per component |
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Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop CS6 (Macintosh) |
File change date and time | 12:17, 28 July 2020 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.3 |
Date and time of digitizing | 13:53, 26 July 2020 |
Meaning of each component |
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Shutter speed | 8.375 |
APEX aperture | 5.625 |
Exposure bias | 0 |
Maximum land aperture | 4 APEX (f/4) |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
DateTime subseconds | 00 |
DateTimeOriginal subseconds | 00 |
DateTimeDigitized subseconds | 00 |
Supported Flashpix version | 1 |
Color space | sRGB |
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Focal plane resolution unit | inches |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Scene capture type | Standard |
GPS tag version | 0.0.3.2 |
Serial number of camera | 192020000853 |
Lens used | EF24-105mm f/4L IS USM |
Owner of camera | Tangent Mind llc |
Rating (out of 5) | 0 |
Date metadata was last modified | 05:17, 28 July 2020 |
Unique ID of original document | 6EA360A4DC3C2A944F80065CB39AED72 |