The presentation I made at Dayton 2002, on Emergency Communications Reasons for an amateur radio antenna support structure, is now available at www.antennazoning.com. If you believe that it will be d
the FCC In It is still available. You can find it on the CD-ROM that accompanies "Antenna Zoning for the Radio Amateur", see www.antennazoning.com. Another good reason for owning the book. For the ra
Next week I shall meet with a professional engineer to develop a package of materials to use in a building permit application for a nearby ham who is blind and cannot prepare the necessary materials
See Modeling, Loading, and Preliminary Design Considerations for Tall Guyed Towers, by Gantes, Khoury, Connor and Pouangare, Computers and Structures, v. 49, No. 5, pp.797-805, 1993 in which the auth
On Fri, 5 Apr 2002 08:41:22 -0800 "Al Williams" <alwilliams@olywa.net> writes: See also page B.4 ff, SETBACK Fred Hopengarten K1VR hopengarten@post.harvard.edu Six Willarch Road * Lincoln, MA 01773-5
SWR variation is a common occurrence in the TH3/TH5/TH6/TH7/TH11series opf antennas when water is trapped in a trap. A hole in the end caps should be pointed down, to allow water to escape. If there
I have two HyGain TH6DXX and two HyGain TH7DX antennas in the air. I made up little plastic boxes from Radio Shack, mounted SO-239's and stainless steel studs (1/4-20 bolt and nuts) wired it to be th
<in re holding down radials> I found a local wholesale beauty supply place that sells boxes of 500 bobby pins cheap. I had it hidden among my antenna supplies until my daughter found it. Now she has
On Tue, 19 Mar 2002 07:38:40 -0500 "jljarvis" <jljarvis@abs.adelphia.net> writes: K1VR has an FVR Spitfire array on a tower which has a three high stack of tribanders (a TH19DXX), plus a Cushcraft 40
On Fri, 22 Mar 2002 07:45:43 -0500 Pete Smith <n4zr@contesting.com> writes: bright. K1VR: Trim until clean and bright is the best answer. The reason I suggested one foot per year stored outdoors is t
On Mon, 31 Dec 2001 22:37:09 -0700 Stu Greene <wa2moe@firstinter.net> writes: K1VR: The subject of CC&R's is discussed intensively on pp. A1-A7 of "Antenna Zoning for the Radio Amateur, " published b
On Tue, 1 Jan 2002 14:35:44 -0600 "Greg Gobleman" <k9zm@frontiernet.net> writes: K1VR: Thank you. K1VR: Yes. But wear leather gloves to save your hands. Also, sometimes a mallet helps. Your south of
K1VR: There is. It is called the Community Associations Institute. They are represented in Washington and routinely file comments. Though I do not agree with many of their positions, they must be ack
To: <towertalk@contesting.com> K1VR: The photos at this URL stand for the proposition that the tower did not fall the length of its height. Fred Hopengarten K1VR hopengarten@post.harvard.edu Six Will
3.2 MHz ** through horizontal Bring the wire in close to the tower (twine will do, as you'll need an insulating characteristic) to permit the rotation of the lower tribander, then let it go out again
The FVR Spitfire Antenna for 160 meters was introduced to the world at the Dayton HamVention in 2000. It is a 3 element vertical parasitic array, which may be constructed in the same real estate requ
K1VR: I wouldn't trust it. At the time it was common for such posts to be 10' up, four feet down, with a concrete pad that is only a few inches deep (perhaps 3-4" at most). If the soil is sandy (it's
On Tue, 13 Nov 2001 12:40:29 -0600 Tom Martin <tmartin@chartermi.net> writes: once K1VR: With the standard Tailtwister or Ham-M/Ham IV (no special connector), I have had the experience of a wire slid
K1VR: I mounted my TH6 at 97' on a five foot mast, and my 40-2CD at 90' on a RingRotor. Works beautifully, even when in line together (i.e., not 90 degrees of separation). Not a theoretical answer, b
K1VR: Terrific idea. May I suggest a refinement? Perhaps someone would care to establish the standard spreadsheet so that all calculations can be reconfirmed, and, in so far as someone wishes to appl