Albums: WA7DUH And WB7CNV Tower Construction

WA7DUH And WB7CNV Tower Construction

Photo essay of tower project at the station of Linda WB7CNV and Steve WA7DUH. They live just outside of the Richland and West Richland city limits in Benton County. Project is to initially erect a 65 ft guyed tower, but to design it for 75 ft or higher. Benton County has an ordinance controlling "communications facilities" (BCC 11.65) which includes "communication towers and antennas." Many of the requirements are exempted for amateur radio towers and antennas not exceeding 65 ft.
138 images Submitted by WA7DUH Steve St... on Sat, 08/04/2012 - 11:19am

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The #4 solid wire and the copper strap is also run to the house electrical ground and into the ham shack entrance.

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Uploaded on 09/03/2012 - 6:26pm by admin 737 visits

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Uploaded on 09/25/2012 - 11:04am by WA7DUH Steve St... 724 visits

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Uploaded on 09/25/2012 - 11:02am by WA7DUH Steve St... 722 visits

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Assembling an inner guide and support tube that is slid into the large end of the element tubes to provide a consistent diameter for the beryllium tape that must slide in and out.

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Uploaded on 09/25/2012 - 11:03am by WA7DUH Steve St... 719 visits

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A completed element. 30M & 40M beam operation is achieved by pushing the beryllium tape through the sweep and down the "return" side, creating a resonant folded element. Thus these elements are only 40 feet wide instead of the 62 feet that would be required if they where straight out.

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Uploaded on 09/25/2012 - 11:04am by WA7DUH Steve St... 704 visits

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Director element EHU and element return fixture.

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Uploaded on 09/25/2012 - 11:00am by WA7DUH Steve St... 702 visits

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Rubber boots hold the elements into the EHU sockets.

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Uploaded on 09/25/2012 - 11:04am by WA7DUH Steve St... 690 visits

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The tower base hole. 2x4's above the forms hold up and align the top rebar grid. There is also lower grid sitting on concrete blocks. The tower base that will be submerged in concrete floats in the center of both the top and bottom rebar grids. Temporary guy ropes hold the tower in perfect plumb. Grandson Adam approves.

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Uploaded on 08/14/2012 - 5:24pm by WA7DUH Steve St... 677 visits

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A better view of the rebar cage.

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Uploaded on 08/14/2012 - 5:24pm by WA7DUH Steve St... 671 visits

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How is this supposed to go???

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Uploaded on 09/25/2012 - 10:58am by WA7DUH Steve St... 667 visits