Memorial Day
Antenna Party Installation



First, the Cushcraft 40-2CD 2-element 40 meter yagi gets bolted into position at the top of the mast. The driven element is on the right, reflector on the left and the entire antenna has been strengthened per Dave Leeson W6NL's articles.

Note the two 2x4 "forks" that have been secured to the top of the boomlift bucket. This allows the antenna booms to be brought flush against the mast while still affording the bucket some maneuvering room. Bob KI7GN.


Next, the M2 6M7 7-element 6 meter yagi is placed into position 6 feet (1.8 m.) below the 40-2CD. What looks like a large element on the left end of the boom is actually the 40 meter reflector above it. Chuck NX6W and Bob KI7GN.


Dick K7VC applies the finishing touch to the N connector attaching the 6M7 transmission line. Because the 6M7 coax is one continuous run of Davis RF BURY-FLEX and was installed before the antennas, it has to be trimmed, connected and waterproofed after the antenna is in place.


The Hy-Gain TH11DX 11-element 10-12-15-17-20 meter yagi is the largest antenna to be installed. Here it is being removed from its temporary mast and prepared to be moved into position for the lift. Chuck NX6W, Dick KJ7UK, Dick K7VC and Duncan WA6RRU.


Finally, Bob KI7GN secures the TH11DX in place, a foot (0.3 m.) above the top of the tower and 6 feet (1.8 m.) below the 6M7.


Last, but by no means least, all connections to and from the tower pass through this single-point ground window populated with Polyphaser lightning/surge protectors. Note the 3-inch (7.6 cm) wide copper strap running down to the ground field and up into the shack.


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Copyright 1998-2010 Dick Flanagan K7VC. All rights reserved.
Updated December 5, 2010