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Don White wrote in news:ZKg0g.60624$VV4.1122705
@ursa-nb00s0.nbnet.nb.ca: 2000 feet?? That would be higher than the worlds tallest free standing structure...the CN Tower in Toronto. http://www.cntower.ca/portal/ Do they hang their antenna from a 'sky hook'? Ok, you got me. Their antenna isn't at the top of the tower the 3 stations are on: WTAT-TV SC CHARLESTON USA Licensee: WTAT LICENSEE, LLC Service Designation: TV NTSC (analog) television station Channel: 24 530 - 536 MHz Licensed File No.: BLCT-19900418KE Facility ID number: 416 CDBS Application ID No.: 147538 32° 56' 24.00" N Latitude 79° 41' 45.00" W Longitude (NAD 27) Polarization: Horizontal (H) Effective Radiated Power (ERP): 5000. kW ERP Antenna Height Above Average Terrain: 542. meters HAAT Antenna Height Above Mean Sea Level: 544. meters AMSL Antenna Height Above Ground Level: 539. meters AGL TV Zone: 2 Frequency Offset: 0 (zero) Directional Antenna ID No.: 18713 Pattern Rotation: 0.00 Antenna Make: DIE Antenna Model: ODD900418KE Relative Field values for directional antenna Relative Field polar plot Relative field values do not include any pattern rotation that may be indicated above. 0° 0.915 60° 0.632 120° 0.403 180° 0.317 240° 0.825 300° 0.988 10° 0.885 70° 0.522 130° 0.443 190° 0.407 250° 0.858 310° 0.999 20° 0.858 80° 0.407 140° 0.443 200° 0.522 260° 0.886 320° 0.999 30° 0.825 90° 0.317 150° 0.403 210° 0.632 270° 0.915 330° 0.988 40° 0.782 100° 0.296 160° 0.342 220° 0.718 280° 0.943 340° 0.968 50° 0.718 110° 0.342 170° 0.296 230° 0.782 290° 0.968 350° 0.943 And, they're only running a mere 5000 KW ERP, still the most powerful UHF station in SC. The collector voltage on the big klystrons is 25KV. WCSC-TV5 is the top antenna: WCSC-TV SC CHARLESTON USA Licensee: WCSC, INC. Service Designation: TV NTSC (analog) television station Channel: 5 76 - 82 MHz Licensed File No.: BMLCT-20050628AAY Facility ID number: 71297 CDBS Application ID No.: 1068924 32° 55' 28.00" N Latitude 79° 41' 58.00" W Longitude (NAD 27) Polarization: Horizontal (H) Effective Radiated Power (ERP): 100. kW ERP Antenna Height Above Average Terrain: 596. meters HAAT Antenna Height Above Mean Sea Level: 599.9 meters AMSL Antenna Height Above Ground Level: 595. meters AGL They're at 600 meters. Between Channel 4 and 5's antennas is a work platform. On that platform is one of our 2 meter ham repeaters on 147.300 Mhz. 100 miles in this flat country is easy with 50 watts...(c; The towers are right along the ICW in Awendaw, SC, just north of Mt Pleasant. There were 3 towers until Channel 24's monster fell feet from a lady's house in Hurricane Hugo. She reported it made a loud noise.... The elevator ride up to the repeater makes it feel like 10,000 ft. You can't see your car in the parking lot and the tower appears to disappear to a point below you. Clouds pass through you or below you, a very eerie feeling. The view out to sea from the platform is simply beautiful. How the tower and repeater survive our big thunderstorms is amazing. But, alas, we digress off topic....(c; Dead Wreckoners have no trouble N of Charleston getting a bearing on them, even at night when their very high intensity strobes clearly mark their presence. |
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