Yes, I have this sort of a "mounting" scheme, and it's worked fine for some years now. I've used a couple of big nylon tie-wraps to hold the plate in place so it doesn't flop around. When the tower i
Hi All, Here's a query from a fellow ham. I'm not sure if he's a towertalk member, so I'm posting it in his behalf. If you can respond, please do so direct to him, not to me. mni tnx es vy 73, Hi: I'
Hi, N6TQS wrote... They found that flat black was NOT a good paint scheme for night fighters/intruders like the Northrop P-61 Black Widow and the night version of the P-38... it resulted in a visible
Nobody has allowed for the fact that the compass itself isn't perfect! It has some "deviation" from the correct direction,and that usually depends on the indicated direction. Here's the full story...
I'd have to believe that such a report is, in fact, FROM a wind generator, or a windbag, as my daddy used to call them. Our local birds seem to appreciate my tower and antenna, except when there is a
Well, I think the report IS scientific! It isn't complete (and the authors admit that) in that it doesn't compare a large number of paths, with a large number of ionosperic conditions. It does indeed
I calculate under 1.25 cubic yards for that hole. You're going to have a LOT of concrete left over. 3' x 3' x 6' is two yards. 73, _______________________________________________ See: http://www.msco
Don't worry, the speed will come back quickly. As always, the key is PRACTICE! I have tailored a couple of pairs of stereo headphones by putting a series resistor (determined by experiment) in the li
On 15 Oct 2003 at 13:24, RWMaylott@aol.com wrote about Kashjian towers: Well, I got a TriEx while the name still existed. (Maybe the last one!?) I have about 8 feet of mast in the top section of my t
Hi all, I can't visualize how this works. On an aluminum antenna, sure. But how does hanging a wire on the end of the fiberglas tubes of a steppir do much of anything? If you can get electrical conta
My concrete guy (actually retired concrete guy, but doing occasional jobs to pick up a few bucks) explained it to me this way, which seemed very logical. You can take the forms off after 24+ hours, b
That seems high to me. I got one a couple of years ago, (20 feet long, 1/4 inch wall, and... the missing dimension... 2" outside diameter) and I recall it being something like 115 pounds. At least th
Maybe my 115-pounder was 3/8" wall. 73, George T. Daughters, K6GT _______________________________________________ See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather Statio
It's thin, yes. But it's also unruly... I'm prettty sure it's aluminum clad steel, like copperclad. It probably is. 73, George T. Daughters, K6GT _______________________________________________ See:
Yes, it is important, because the "details" of how and why it works, and how it is built, are generally kept from public or professional scrutiny. "Proprietary information" you know. Unfortunately, I
What about supeconducting loading coils and/or elements? One could generate VERY high currents with low losses (unless you count the energy requirement of keeping an RF-transparent thermos of liquid
And don't forget the goat! Remember what Hans, K0HB, wrote: (as closely as I can recall) "There is nothing mysterious about RF propagation. There are perfectly valid technical reasons that you should
OK, I can't stand it. I'll offer what my grandfather taught me. When you have a lot of dirt in a situation like this, just "Dig a hole and bury it!" 73, George T. Daughters, K6GT ____________________
< snip > Test the loss. Hook up a dummy load at one end, and a transmitter and in-line power meter at the other end. Put 100 w (measured by the power meter) at 28 MHz into it. Then, shift the power m
< snip > Exactly right! And if SWR>1.0 then the impedance at the transmitter end of the line changes with differing line lengths, so a change in line length can sometimes make it easier to match for