On Long Island, we had sandy soil. The 40'tower EZway wonder post was installed. It was an unsatisfactory installation. The wonder post had to be braced when cranking tilting the tower up or down. No
I think to many people rely on "over engineering" of these towers to withstand loads that never should be put on them in the first place. Years ago I bought a HDBX48 and the gentlemen I purchased it
Another possibility. Put the rotary 40m about 1' above the tribander and at right angles to it. The extra few feet of height lost won't amount to much. Also you would still have the advantage of poin
The problem I had with these was that the pulley wheel edges wore/rusted/pitted away. Normally the shape is concave to keep the wire rope from jumping the wheel and getting the stuck between the whee
I had a four element GEM quad (second director to reflector spacing element spacing on 20M ~22'). I modeled it in EZNEC. With ground reflection gain, it came in about 15 dbi on 20M. Subtract about 6d
https://www.youtube.com/watch?v=uWi0wlSyU3U 73, de Nate >> "Winging it" was not a good idea. Complete lack of planning. Might have cost them one chopper and a life or two. de K3KO -- No virus found i
As a foundation engineer my first thought is wow! I think that foundation is way over designed. My second thought is if you have water at 5 feet you may be better off having the backhoe guy bring a d
To go that thin I would recommend using a number 6 or larger rebar on the top and bottom. At that point you might be better off calling a local concrete company to put the foundation in for you. They
Patrick That sounds like quite the interesting setup. How well it works really depends on the soil conditions and the design loads. Having a reinforced foundation goes a long way. In this case the ex
Hans Done properly this could work well. Many a solar panel is mounted in a similar situation. Many of them lay the beams as an H and connect the tower to the middle of the cross beam and put a pier
Move the pipe. If it were to ever leak you would have a leaning tower. _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk
Not wrong :). I have a bit of experience in the matter. I have seen structures fail from a leaky unpressurized sewer pipe that was fine when they built it. The top 1.5 feet will provide so little lat
Im saying an old utility needs to be moved or abandoned. The new wet utilities should come in under the foundation with a minimum clearance and a reinforced footing that will easily span the less tha
I'm not sure one would ever notice the tree effects on HF. There are lots of other things (e.g., no balun at the feedpoint, feedline routing and objects in the near field, ground terrain variations )
If you weld it the rod may rust which will cause the concrete to burst. Not a fun situation as usually the recommended repair is completely remove the foundation and replace it. As a foundation engin
The frustrating thing about this for me is now I find tower talk emails in my spam folder. I un spam them but based on any number of factors my spam filter still thinks some of them are spam. _______
I host a mail server for a few domains I own and/or manage. I have used spamassassin successfully for about 10 years. It does a pretty good job of finding spam, but when a few "spams" get sent from a
I have the equipment to drill a 6 inch hole through just about anything, what if I placed my grounding rods in concrete or grout? Would that help or hurt the grounding? I do have a ground resistance
Thanks for the advice. I think my best course will be to test the soil conductivity. The only time we have lightening here is during the summer storms; the soil is usually damp from the sprinklers al
Mike, I deal with similar situations during my day job, I am a soil engineer. The great thing about soil engineering is every site is different, and every loading situation is different. What really