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.P1020696.JPG
Boom joiner on the SteppIR Dream Beam DB18E). Colored dots on the pieces helps the assembler to find and line up the proper pieces.
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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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Dave W7DJE looks through the boxes for parts. Duffy helps.
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Assembling an element housing unit (EHU) prior to installation.
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Both the EHU and Element Return fixture must be leveled, then torqued to specifications.
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Let's break off some bolts with an air driven impact wrench. Luckily the manufacturer provided spares.
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Gary (W7TYQ) Dave (W7DJE) and Peter (AC7SB) attach the reflector Return Element Support to the boom.
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Here is the house ground rod as we found it. It doesn't meet code. Only one ground was found or wired into the electrical panel, but code requires two, with at least 6ft separating them. The solid copper wire is also too small, and the one rod was not 6 inches below grade. So we fixed that up.
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Yes, the droop is normal. Note the middle driven element has not been installed in this picture. The tree has to be removed.
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The reflector EHU and element return fixture mounted on boom.
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Boom now mounted on the mast, which is mounted on the hazer (antenna elevator) using the thrust bearing (on top) and the Hygain rotator. The antenna will be pushed closer to the top of the mast assembly is complete.
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Yea-- this is the way to handle concrete.
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The guy rods have 6 x 6 x 1/2 in steel plates to keep them from pulling out of the concrete guy station blocks. Picture shows drilling the 3/4 in holes for the rods. I need a slower turning drill press.