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

P1020634.JPG

0 / 0
Uploaded on 09/15/2012 - 7:34pm by WA7DUH Steve St... 507 visits

P1020636.JPG

0 / 0
Uploaded on 09/15/2012 - 7:34pm by WA7DUH Steve St... 506 visits

P1020648.JPG

0 / 0
Uploaded on 09/15/2012 - 7:36pm by WA7DUH Steve St... 504 visits

P1020697.JPG

0 / 0
Uploaded on 09/25/2012 - 10:58am by WA7DUH Steve St... 502 visits

P1020720.JPG

0 / 0
Uploaded on 09/25/2012 - 10:59am by WA7DUH Steve St... 501 visits

P1020725.JPG

0 / 0
Uploaded on 09/25/2012 - 11:00am by WA7DUH Steve St... 499 visits

P1020716.JPG

The interior of a SteppIR Element Housing Unit (EHU) with stepper motor that drives copper-beryllium tapes in and out of the hollow antenna element tubes. The tapes are the radiating/active elements of the Yagi beam antenna. This SteppIR antenna is able to be resonant anywhere between 6.5 Mhz and 54 Mhz by adjusting the lengths of the Beryllium tapes. The tapes are wound on the spools that are seen in the picture using the cogged wheel that engage holes punched into the tapes. Cogged wheel is driven by a stepper motor, which has absolute positioning capability. The computerized controller knows how far to position out the tapes in the driver, reflector and director tubes for any given frequency.

0 / 0
Uploaded on 09/25/2012 - 10:59am by WA7DUH Steve St... 499 visits

P1020679.JPG

0 / 0
Uploaded on 09/25/2012 - 10:57am by WA7DUH Steve St... 499 visits

P1020695.JPG

Fritz "I own this tractor. Let's go for a ride"

0 / 0
Uploaded on 09/25/2012 - 10:58am by WA7DUH Steve St... 496 visits

P1020682.JPG

This is Duffy, Dave's (W7DJE) dog.

0 / 0
Uploaded on 09/25/2012 - 10:57am by WA7DUH Steve St... 496 visits

P1020721.JPG

0 / 0
Uploaded on 09/25/2012 - 10:59am by WA7DUH Steve St... 495 visits

P1020627.JPG

0 / 0
Uploaded on 09/13/2012 - 7:04pm by WA7DUH Steve St... 495 visits

P1020620.JPG

0 / 0
Uploaded on 09/13/2012 - 7:03pm by WA7DUH Steve St... 494 visits

P1020790.JPG

0 / 0
Uploaded on 09/25/2012 - 11:04am by WA7DUH Steve St... 489 visits

P1020705.JPG

Let's break off some bolts with an air driven impact wrench. Luckily the manufacturer provided spares.

0 / 0
Uploaded on 09/25/2012 - 10:58am by WA7DUH Steve St... 489 visits

P1020686.JPG

Hygain T2XD rotator mounted on the hazer.

0 / 0
Uploaded on 09/25/2012 - 10:57am by WA7DUH Steve St... 488 visits

P1020646.JPG

0 / 0
Uploaded on 09/15/2012 - 7:35pm by WA7DUH Steve St... 486 visits

P1020724.JPG

Steve WA7DUH; Peter's wife Tacy (on the end); Gary W7TYQ and Dave W7DJE trying to program a 2M handi-talkie; and Peter AC7SB.

0 / 0
Uploaded on 09/25/2012 - 11:00am by WA7DUH Steve St... 485 visits

P1020583.JPG

#4 solid copper over to the house electrical entrance ground. Found more irrigation, Spinkler valve control cable (run in water pipe PVC) and some Romex (indoor only) that the previous owner had run to some outdoor lights. Gotta fix all that.

0 / 0
Uploaded on 09/03/2012 - 6:26pm by admin 484 visits

P1020751.JPG

Dave W7DJE helps measure out an element tube. These nesting tubes are pulled out, and the ends are trimmed to length with a hacksaw.

0 / 0
Uploaded on 09/25/2012 - 11:01am by WA7DUH Steve St... 481 visits