The Rohn HDBX 48 foot self-supporting tower is built now by Thomas Shelby & Company, Inc. using the original ROHN tooling. See: http://www.criticaltowers.com/BX%20Series%20Towers/Web%20Pages/BX%20Ser
I see the drawing for the foundation pad for the Rohn BX selfsupporting tower series says "reinforcing is recommended for temperature and shrinkage control." The diagram shows two separate grids of r
I am putting up a Rohn HDBX 48 foot tower. I will put a 3 element SteppIR on it. The SteppIR specs are 42 lbs, 6.1 square feet of maximum wind load, and 16 foot boom. The HDBX 48 antenna load specs a
I am using buried 4-inch PVC pipe to run coax and control cables from shack to tower base. The PVC come out of the ground, turn horizontal, and end a foot or two above the tower base. The cables will
I am putting up a Rohn HDBX 48 foot tower. I will put a 3 element SteppIR on it. The SteppIR specs are 42 lbs, 6.1 square feet of maximum wind load, and 16 foot boom. The HDBX 48 specs for antennas a
I had a Ham IV rotor serviced by Norms and had them install a quick disconnect connector in place of the terminal strip. The short cable from the rotor to the male connector they installed has a blac
Ward has a nice article in most issues. His response to the uproar made importants points. I have not noticed any good counter arguments. Maybe people took his advice: 73, Paul K5ESW _______________
I am looking for some stainless steel wool. I need enough to plug the ends of two 4-inch PVC pipes. I have tried some hardware stores and restaurant supply places locally but haven't found any. I sea
Thanks for all the nice responses. I think I will use fiberglass for now and keep my eyes open for some bronze or stainless steel wool. 73, Paul K5ESW Raleigh, NC ____________________________________
Bill, When you connected the new 440 foot cable laying on the ground and without using the 6 volt battery boost, where the symptoms the same as when using your original burried cable? I thought you w
You can still get the BX hardware from: http://criticaltowers.com/ They say it is made by Thomas Shelby & Company, Inc. using all the original ROHN tooling. I bought some new concrete base stubs from
I want to put some quick disconnect connectors in my shack on cables to my rotor control and antenna switch. Both are 8-conductor cables. I want to use two sets of plugs/sockets with different number
I made an EZNEC model of a 160M Inverted-L with one elevated radial. From the impedances I am seeing, I think I have something wrong. If you have an EZNEC model of a 160M Inverted-L with one or more
I have put up 6 sections of HDBX-48 twice at different locations. Each time my gin-pole was a thick wall 15-foot-long steel pipe about 1.25 inches in outside diameter. It was held in place at the cro
Maybe I missed it, but I have not seen mention of Pneumatic Antenna Launching Systems by Alan Biocca Engineering. The site has a lot of valuable info: http://www.antennalaunchers.com/antlaunching.htm
QEX had a nice article on GDTs by K5PA a couple of years ago. You can see it here: http://www.arrl.org/files/file/QEX_Next_Issue/2016/July-August/Hinkle.pdf 73, Paul K5ESW ___________________________