There's an interesting article on page 3 of Thursday's USA Today about how the proliferation of cellular phone towers has heightened citizen opposition to towers in general. Cities are being forced t
It was not a typical balmy afternoon in Yuma, Arizona on Friday. There was a cold front approaching from the north, which was kicking the wind up to about 30 mph. I happened to glance out the back wi
Joe, A few months ago, my T2X was behaving exactly as yours is now. On one occasion, the beams were locked in place for two days before it finally broke loose. When I pressed the brake release, there
Hi Jeff, Slopers are highly dependent upon the tower, what antennas are on and near the tower, and ground conductivity. I would recommend computer modeling to see how your proposed configuration woul
On Wed, 04 Sep 1996 10:09:37 -0600 Tony Wanschura <tonyjw@primenet.com> writes: Hi Tony, Here's a description of my 160 half sloper on a 70x120 city lot. The tower is 48 feet high, with a KT-34XA at
The Luxor Hotel in Las Vegas has a bright light shining skyward at the top. The light attracts bugs, and the bugs attract huge swarms of birds, circling around in the light beam to catch the bugs. It
Just take good notes when you disassemble the winch, so you know the order in which the parts go back together. I've taken my friction winch apart a couple of times just to clean up the rust and crud
I've used the KLM KT-34XA for about 20 years. It's a very good antenna, still used by many very successful contesters. Recently, a friend of mine purchased a KT-36XA and I had an opportunity to look
Since the low end is out, it may be something on the rear driven element. Are the phasing straps touching something, or touching each other? You should be able to put an ohmmeter across the two halve
On Sat, 11 Oct 2003 17:37:14 -0500 "Mark Beckwith" <mark@concertart.com> writes: There is (or at least, was) a procedure for phasing dissimilar antennas on the array solutions web site. It involves a
That 52 ohm dummy load will get transformed all over the place by the 75 ohm line, depending on how long the line is. When you look at it with a 50 ohm swr bridge in the shack, wild variations with f
I only know about the tribanders first-hand, but I think KLM used a similar dual-driven-element setup on their monobanders. The rear driven element is the one that predominantly affects swr on cw. It
On Thu, 16 Oct 2003 05:21:13 -0700 (PDT) dan bookwalter <n8dcj@yahoo.com> writes: You might check with Rotor Doc to see if his RD-1800 will fit in there. http://www.rotor-doc.com/ If you settle on a
I don't think a 32" tower would have any effect on 20 meters. Is there another antenna near the 20, or a set of guy wires? Sometimes antenna analyzers tell lies. If you were using an analyzer, try yo
I think the definitive analysis of this antenna has been done by W4RNL: http://www.cebik.com/wbfd.html The analysis shows that on 40 through 10 the gain is about -6 dB compared to the same length dou
On Thu, 23 Oct 2003 12:36:36 -0400 Pete Smith <n4zr@contesting.com> writes: I didn't know that either. I went out to inspect mine and found one upside down. I told my wife that one of my Johnny-Balls
On Mon, 1 Dec 2003 14:13:50 -0600 "Jim Brown" <jbrown@luminet.net> writes: You could try replacing the motor capacitor in the control box. You can get one from your local electric motor shop. It will
That's how I would do it. Get some regular thin graph paper. Lay out the yard, trees, and other fixed items. On a separate sheet of graph paper (same scale), lay out the tower base and anchors. Then,
Five minutes with the program YT (comes with the arrl antenna book), using arrival angle statistics for Iowa to USA, produces the following results, assuming flat terrain: 10m - 45' 15m - 55' 20m - 7
On Sat, 14 Feb 2004 17:27:13 -0800 "Jim W7RY" <w7ry@centurytel.net> writes: Someone advised checking with a real swr meter, rather than an antenna analyzer. - Good advice. Also, you may have chosen a