Take a look here http://www.nn4zz.com/tiltplate.htm or Google for antenna
hinge. I built one, works great.
73, Mike NF4L
> On Jul 3, 2015, at 2:32 AM, Bryan Swadener via TowerTalk
> <firstname.lastname@example.org> wrote:
> 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
> TowerTalk mailing list
TowerTalk mailing list