Does anybody on the list know what I can do to get past a couple error messages I receive when trying to open a DEM file in Microdem? The error messages are "Need 7z for GZ extraction" and "xxx is No
Thank you very much, gentlemen. I will give this a try and let you know what is the result. Been anxious to evaluate a site I have access to up in the mountains. 73 Tom K0SN _________________________
Fellow TTers: I built a balun for my triband yagi consisting of 50 type 73 ferrite beads slipped over a piece of RG 303 coax, enclosed inside of a piece of 1-1/2" pvc. Had one of the wires break insi
N6BT is still around, I just ordered and received his "Array Of Light" book not long ago. I would recommend it highly for anyone who owns and wants to work on or better understand the workings of the
TomAll the warnings about guying towers according to the book aside, I have a short tower at my hunting cabin that I put up in the fall and take down in the spring. It is guyed to 3 trees right at th
I acquired several sections of Rohn 45 lately and the one that was used as a base section looks like a regular straight section with a heavy galvanized plate welded to the bottom of it. The plate ste
Here's what I have done to eliminate the condensation problem At a few or several locations along the length of the underground conduit, provide a low point in the excavation and install a tee with t
Here is another sourcewww.mgs4u.com K0SN _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.c
Hi AllOur radio club is building a yagi to be used mostly for Field Day type setups. It's modeled upon the F-12 C-3 line, with the difference being we are not crazy about the element to boom mounting
MikeAgreed, the U-bolts are reasonably fast if you have maybe 2 elements. A C-3 has 7 elements, that's 28 nuts you have to keep track of, install, tighten, etc. And if they are SS now you have to con
Thanks to all who have responded and I apologize for not being clear in what I was looking for in my original post. We have the element tubing joints figured out, pretty much the exact joint used on
JimYou guys did it up right- no wonder we hear you all over the bands in 7QP! Great presentation, thanks for posting it. Tom K0SN _______________________________________________ _____________________
Not all beams use elements on top. F-12 had theirs hanging underneath. N6BT ( F-12 creator) said in his book that yagi elements naturally "want to be that way". Seems to make sense. K0SN ____________
Here are two methods that I have used with good success: 1. Run the coax in perforated PVC pipe like the type that is made for septic systems. Place the perforations toward the bottom as you lay the
Ted I just tried it on a model of a 20M 2 element beam in EZNEC. Adjusting the length of the reflector from 218" to 225" did not affect the frequency of lowest SWR, but it did, in my case, cause the
JimI am curious about why you are suggesting that one needs NEC 4 software to design a 2 el. duobander. FWIW I basically took a C-3 and removed the 10M elements, tweaked it with a model in EZnec (NEC
ChickI would say you want to locate the 2nd tower as far away from tower #1 as you can get. This is even more important if your plans for the future include multi-radio contesting and/or SO2R operati
TomIf you think it might be a Mosley, I would give them a call. They are pretty good about responding and helping out in my experience. Tom K0SN _______________________________________________ ______
Hi AllA local fellow just acquired an old Hygain HG50 MT2 tower. The tower came missing the cables that are used to crank it up. He says the manual he found on the internet doesn't help much. Does an
We just got our hands on an old Force 12 C31XR, disassembled of course. Does anyone have a copy of the manual that you would be willing to share? 73 and HNY to all. Tom K0SN _________________________