Albums: WA7DUH And WB7CNV Tower Construction

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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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Although not called for in the assembly manual, on recommendation from Brian W7BJN, a glue bead is placed at each nesting tube junction to prevent them from sliding back in over time. Constant movement in the wind at the top of a tower can cause them to work in according to Brian. Made sense to this crew.

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Uploaded on 09/25/2012 - 11:01am by WA7DUH Steve St... 596 visits
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Uploaded on 09/03/2012 - 6:26pm by admin 591 visits
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OK, how to these hollow fiberglass tubes go together??

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Uploaded on 09/25/2012 - 11:01am by WA7DUH Steve St... 587 visits
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Uploaded on 09/15/2012 - 7:34pm by WA7DUH Steve St... 587 visits
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Time to pour concrete. The concrete truck can only reach one guy station, so a motorized wheel barrel is used to transport 8 yards of concrete into the main tower and guy station holes.

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Uploaded on 08/14/2012 - 5:29pm by WA7DUH Steve St... 585 visits
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Uploaded on 08/14/2012 - 5:30pm by WA7DUH Steve St... 579 visits
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One of three ground tower ground rods. The are each connected to a tower leg with both a #4 solid copper wire (per NEC) PLUS a 1 1/2 inch low RF impedance copper strap. Once connections are made, the ground rod is then driven down so it is at least 6 inches below grade.

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Uploaded on 09/03/2012 - 6:26pm by admin 577 visits
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Uploaded on 09/25/2012 - 11:02am by WA7DUH Steve St... 568 visits
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Uploaded on 10/10/2012 - 5:38pm by WA7DUH Steve St... 567 visits