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Explosive Charges Bring down 48 VOA Towers in Beaufort County

Videos for Engineers

Explosive Charges Bring down 48 VOA Towers in Beaufort County - RF Cafe Video for EngineersThis item appeared on the ARRL news website. It links to a video (embedded below) showing an engineered demolition of a shortwave antenna farm in North Carolina commissioned by the Voice of America (VOA) in 1963, during the Cold War. The 'Voice of America' radio program was broadcast to people living in countries (Iron Curtain entities like Cuba, USSR, China, North Korea, etc.) that censored information not approved by government agents. The video provides an aerial view of the entire line of towers collapsing as the precisely timed charges go off. The most impressive aspect is that explosives are detonated only on every other tower in such a way that the falling tower takes out the one next to it almost in a dominoes manner (see yellow circle). 25 pounds of explosives were used rather than possibly 50 pounds if every tower's guy lines had been blown up. I wonder if the camera used was mounted on a manned helicopter or a radio controlled heli or multirotor drone?

The site was formally closed in 2006 and the land was signed over to Beaufort County, North Carolina, by the federal government in 2014. A public park is planned for the 2,800-acre site, but the towers needed to come down because maintenance - such as keeping the lights atop the towers lit - was deemed too costly.

Explosions Bring down 48 VOA Towers in Beaufort County

From the VOA website:

VOA Broadcast Frequency Schedules

Effective 25 October 2015 through 26 March 2016 (Updated 03 November 2015) All times and dates are Coordinated Universal Time (UTC), same as Greenwich Mean Time (GMT).

Frequencies are in kiloHertz (kHz). 1 MegaHertz (MHz) is equal to 1000 kHz. Conversion to meter bands: Meters=300000/frequency in kHz. e.g.: 17705 kHz --> 16.9 meters

Abbreviations: All programs/frequencies are on daily unless noted otherwise. * - Monday through Friday $ - Saturday and Sunday

English to Africa

0300-0400 UTC    909  1530  4930  6080 15580

0400-0430 UTC    909  1530  4930  4960  6080 15580

0430-0500 UTC    909  4930  4960  6080 15580

0500-0600 UTC    909  4930  6080 15580

0600-0700 UTC    909  1530  6080  9550 15580

1400-1500 UTC    4930 15580 17885           

1500-1600 UTC    4930  6080 15580 17895

1600-1700 UTC    909  1530  4930  6080 15580 17895

1700-1800 UTC    6080 13590 15580 17895

1800-1830 UTC    13590 15580

1800-1830 UTC$  909  4930

1830-1900 UTC    4930 13590 15580

1830-1900 UTC$  909

1900-2000 UTC    909  4930 13590 15580

2000-2100 UTC    909  1530  4930  6080 15580

2030-2100 UTC$  4940

2100-2200 UTC    1530  6080 15580

South Sudan - English

1630-1700 UTC*   11900 13865 15180



Posted April 6, 2016

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