Interesting ... so there is no manufacturer's recommendation to either grease or not to grease a TB-3/TB-4. So how did this do not grease recommendation come about? Surely not an old wives tale. Doug
Thanks Don for this information. Now here is a guy who actually knows what he is talking about, with lots of experience, knowledge and smarts about towers. Doug Delhi made two styles of self supporti
Where is it written that a self-supporting tower has to be guyed with the same tension as a guyed tower? Why can't the guys on a self-supporting tower have no to little tension? Think about it. Those
Thanks Don for this information. Now here is a guy who actually knows what he is talking about, with lots of experience, knowledge and smarts about towers. If you really, really want to learn, then l
Been there, done it, with 2 x 4 pole relays and one +V wire out at a tower. Doug Life is not a spectator sport. I am going to stick a couple more towers in the air and wondering if anyone has tried o
Scottie, Well you have opened Pandora's box. You see there are no list rules ... Steve makes them up as we go along ... and the rules don't apply equally to all subscribers. The one rule I can give y
Well doesn't that just go opposite to my experience. I have used TB-3 s to bear vertical loads for years without any failure. Obviously Rohn doesn't know that their bearings can bear vertical loads.
Gregg, If tramming is set up properly as Randy has described, it becomes the method of choice. Doug I'll run the race and I will never be the same again. Gregg, I am one of those that would say tramm
IMO the over rotation system on this rotor has little benefit with the stock controller. I remove it from my HDR-300s. The benefit in removing the over rotation is that the range of rotation can be i
Located along the Parramatta River in Sydney, Australia, is grouped two commercial towers. One is tall and the other shorter one is top loaded. Anyone have information on the top loaded tower? Doug T
The keyways (2) are the Achilles heel of the HDR-300. I haven't seen the new redesigned shaft but I redesigned my keyways and it has solved the problem. Doug I'll run the race and I will never be the
Without straight elements, perfectly aligned, you would not pass the aesthetics test. The aesthetics test can be as important as the performance test. Doug I'll run the race and I will never be the s
The others gave the easy answers but you, as always, gave the practical, empirical answer. What are the length, helix diameter and depth of insertion on those grain bin anchors? Doug I'll run the rac
A very good resource. Thanks for posting it. Doug I'll run the race and I will never be the same again. All Chance anchor specs can be found here: http://www.hubbellpowersystems.com/POWERTEST/literat
Al, The manuals can be a little disorganized, but the information is there. First you should zero the digital readout system according to the manual by shorting out points A and B. If you decide to r
Dick, I have successfully used full size half slopers on 160m for years. On my 110 ft tower the half slopers are anchored at the 100 ft level and they come off the tower at about a 45 degree angle an
Marty, I welcome your true life experience. So here is one of the many problems with this reflector ... you get beat up posting your real life experience which trumps any theory any day. A lot of the
And if you really want confusing facts, the Delhi/Taco self supporting DMX - 68' in Canada specifies approximate (their wording) base widths of 46" x 48" deep bell bottom base. Soil type is omitted.
Nope... real life experience is an anecdote, not engineering data. It predicts only the past for that one case. There's no way that anecdote trumps analysis, particularly if the analysis is based on
According to your figures, Rohn specifies a much larger tower base (5'9"x 5'9"x4') than does Delhi (46" x 46" x 48" deep bell bottom base) for essentially the SAME tower. So who is right? Doug I'll r