[TowerTalk] Tower Build

[Mike Reublin NF4L]

Why do you say the tilt-plate wouldn't give you access to the vertical? The Yagi's elements would be parallel to the ground, at whatever height you chose to stop the descent, altho horizontal or below horizontal puts a lot of extra stress on the raising gear. Even a few degrees above is significant. I stop mine when the rotor is about eye level. I'm 5'10".

73, Mike NF4L


> On Jul 3, 2015, at 2:36 PM, Bryan Swadener via TowerTalk <towertalk at contesting.com> wrote:
> 
> For my setup, as I described, there is no needfor a tilt plate. And, it would still not give me accessto the vertical on top of the mast above my F12C-4XL yagi. With my setup, I have access to ALLantennas with both feet on the ground. 
> The clamp assembly I use to hold the yagi fromrotating while tilted consists of a piece of anglestock and two U-bolts.
> YMMV
> vy 73 es gl,Bryan WA7PRChttp://www.tinyurl.com/wa7prc-tower
> 
>    Date: Fri, 3 Jul 2015 06:11:36 -0400
> From: Mike Reublin NF4L
> To: towertalk reflectorSubject: Re: [TowerTalk] Tower Build
> 
> 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 WA7PRC 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 ?/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 N0AX> 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 WA7PRC> http://www.tinyurl.com/wa7prc-tower   
> _______________________________________________
> 
> 
> 
> _______________________________________________
> TowerTalk mailing list
> TowerTalk at contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk