N5CQ 40M STACK PROJECT
 

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N5CQ
John Langdon
Austin, Texas


 Turn-key Installation

 199' Rohn 55G Rotating Tower System
Phillystran Guys

4-Element 'OWA'  40m Yagis - Designed and Built by Custom Metalworks
(The yagis were built to be broadbanded - SWR under 1.4:1 across the band - And to survive 110MPH winds)

StackMatch Phasing System
PolyPhaser Grounding System

CLICK TO ENLARGE

  

CLICK ON IMAGES TO ENLARGE
Heavy duty elements for the three 40m yagis Assembling the antennas
 
Element-to-boom plates on one of the booms Lining up the elements
 
Tramming the top antenna into place The top antenna ready to attach to the tower
 
Attaching the driven element and 1st director Putting connectors on the feedlines
 
Feedline entry into the shack Enclosure for the grounding system
and feedline distribution from the 40m tower
Close-up of enclosure Rotating system
Prosistel PST-71 BigBoy Rotor
 
Close-up of rotor and rotating base
 		 Both rotating towers at N5CQ's
New 40m tower on the left
First tower project at N5CQ
 
Another view of the antenna farm
First tower project at N5CQ		 Another job finished!
And now the long drive back to Oregon

 

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Last modified on June 18, 2008 14:46:19 PM