Very interesting, and thank you! How can we get a copy of this? Can you provide a link or directions how to access this? 73, Chuck..K1KW invalid, as the FCC is the sole jurisdiction regarding RFI. co
Interesting. Years ago (25 or more) I did some antenna work for a friend who had pole mounted yagis. I found it far more tiresome to climb the pole and work on the antennas! After that experience, I
At 20M, getting them within a foot of each other will be fine and with a tape measure you can get within an inch or two. If you are really anal, like I can be sometimes, then you can use a TDR to mak
Agreed! I was about to make a similar comment. It will narrow the azimuth pattern so aiming it is important on its fundamental frequency, since its gain is nearly 3 dB over a dipole. Also, for DX per
It would be nice to have a drawing of this new antenna so that we know what is being discussed. Anyone have one? Like everyone else, I'm trying to guess what it is. Chuck...K1KW a who university's co
Hi! Just do it. If there is no legal reason to notify, don't provide one by asking!!!! Deal with any issues later... Chuck...K1KW tower, or do at which our permit, so and give them an whether it woul
Jim Lux makes some very good points with reference to LPDA's. I run two stacked LPDAs on 62 ft long booms, 18E each, independently rotatable, that cover 14 - 30 MHz. They are stacked at 55 and 110 fe
My suggestion would be to flush cut the remaining legs with the surface of the concrete base. Then drill a hole in the center of the concrete base for a pier pin instead, provided they make a pier pi
Love this thread! I lurk here, but have to add this. I took the last vacuum tube course offered at my college, (Tufts) in 1969. Yup, I'm an old buzzard. Still know how to design using load lines and
Dipole at 65 ft. The inv V at 95 ft is probably a little high for the zero to 100 mi stuff., depending upon the apex angle and the resultant average height. I have found that for close in distances a
"Would this tower handle a 2EL 80 meter beam at the top (134')? " I had a modified (by me, 65ft long boom and more overhead trussing) KLM 3E 75M yagi on top of 110 ft of Rohn 45 for 8 years. This arr
Um....an "exchange" in a CW contest is vastly different than sending an information based message with real words as done on the Tonight Show. Voice will win out since one can understand up to 300 wo
There is no way to cure that potential lightening hit. Maybe an "air terminal" on top of the tower. Jury is still out on that. However, without knowing the particulars of the switching, is there an "
Yes, it will be fine for DX. In fact, you may be better off at 120 ft instead of 190 ft since at 3/4 wavelength up, there will be high angle radiation that is supressed at 1/2 wavelength up. This mea
Here's one that has lots of options and a zoom feature. http://www.fourmilab.ch/cgi-bin/uncgi/Earth/action?opt=-p Chuck...K1KW Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with a
Instead of elevating the guy, why not "droop" the reflector 2 ft at the end by bending it down. It will not affect performance in any way that you will ever see. Lots easier than redoing guy points!
This is true. The Big Grips are much longer than the guy grips used in the power industry. I just measured a 1/4" big grip and it is a bit over 2 feet long. The length where the grip grabs the guy wi
While it was up in the air, did you run any F/B tests with a local station to see if it was working? You should get an honest 12 to 15 dB. If you did, it is working fine and I wouldn't worry about th
You are hearing induced voltage arcing to a ground or perhaps differentially across the power line across the closest spacing in the wiring due to a much larger CURRENT produced in the lightening arc