There must have been more at work here than the marginal addition of some Heliax. I designed the fold-over mechanism for the Heights new tower series a few years ago, in accordance with the Aluminum
Correction to my math: 700 lbs x 8 ft = 5600 ft-lbs; but you get the idea. Thanks for the nice comments off-line. Bob, W5LT There must have been more at work here than the marginal addition of some H
The lower strength of welded aluminum is recognized in the Aluminum Association Specifications standard, and the new Heights series used the lower value in the design and analysis of the tower sectio
Here is the "Final Answer": See; http://www.geocities.com/ieee_tpc/ieee_tutorials/FundamentalPrincipalsFounda tionDesign.pdf Bob, W5LT _______________________________________________ ________________
Array Solutions sells a 800W remote tuner for $900, and larger ones on the way. See: http://www.arraysolutions.com/Products/cg_5000.htm Bob, W5LT Perhaps something like this: ebay item # 330287848331
I use a butane soldering tool from Radio Shack, Model 64-2188. Does a great job. The key is to use the silver or gold flashed connectors. The Nickel ones do not want to take solder. I also carry alon
I would recommend the AIM-4170 from Array Solutions. It is a bit more than your target, but you get a lot more too. I have one and it provides a lot of information about your antenna(s). I have used
Accurate measurement of the antenna from the shack depends on the instrument. With a VNA (Vector Network Analyzer) and the short, open, termination procedure it calibrates out the cable and refers th
Well, I have a small advantage: My tower folds over, plus I used a temporary remote control coax switch to choose between 'short' and 'open'. I created a group of cal tables for all bands of interest
You might check out the new SD-100 SteppIR controller. It is standard equipment on the DB-series antennas, and supposedly has a much more robust output circuit arrangement. The driver board can even
Try Texas towers: http://www.texastowers.com/aluminum_.htm They have most diameters in the telescoping wall thickness (0.058"), 6 ft lengths if you need to UPS ship. Bob, W5LT Where oh where can I bu
Ron: You might consider the Heights tower series with Fold-Over kit. See: http://www.heightstowers.com/fold_over_kits.htm You can ?build your own? in whatever height and antenna capability you need.
Dick: I know this is a late addition, but would like to add my experience with a 80/160m 'half' sloper. I have a aluminum fold-over tower that is 85ft tall, with a SteppIR 3 element with the 30/40m d
The problem statement might be incomplete. The type of tower was not stated (self-supporting [and type of SS]; or guyed. If guyed, is the top section guyed at the top?) Depending, the top section may