I'll throw my comments in here. A few years ago, I erected my first tower, a
used US Tower TX472 that came to me in GREAT shape. I installed a Force12 C-4XL
40/20/15/10m yagi on top. It has 9 elements on a 30 foot 5-section boom. At
first, after tilting the tower over, I accessed the yagi with the use of a 12'
step ladder. Access to the 10m λ/2 vertical on top of the mast above the yagi
was impossible.
Then, it struck me that I could easily partially disassemble the yagi by
removing 1/4" bolts that secure the sections of boom + element(s), and then
continue to tilt the tower down. Removing two sections of boom + elements
allows me to tilt the tower to COMPLETELY horizontal. I now do all antenna work
with both feet on the ground. No crane needed. To keep the yagi from
pinwheeling, I use a simple clamp assembly to hold the mast when the yagi is
partially disassembled.
I also recommend the books mentioned by Steve K7LXC. His "Up The Tower" book
answered all my questions, and some I didn't know I had. The main thing I got
from the book was to try to do it according to zoning and permitting
requirements. I did. His collaboration with Ward Silver NØAX on "HF Tribander
Performance - Test Methods & Results" was a good read as well. When the C-4XL
came available, I jumped on it.
vy 73 es gl,Bryan WA7PRChttp://www.tinyurl.com/wa7prc-tower
Date: Thu, 2 Jul 2015 21:25:10 -0400
From: Mike Reublin NF4L
To: towertalk reflector
Subject: Re: [TowerTalk] Tower Build
A guyed tower is nice if you climb, or have cheap easy access to a climber
and/or crane. As we age, and climbers become a real rarity, a crank-up
tilt-over becomes a much better choice. Antennas, rotors and coax WILL need
attention at some time.
73, Mike NF4L
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