Well, the best way to understand it is to scale it to 40 meters. The height is important because it's effect is set by the height in wavelength, rather than absolute height. On 40 meters the scale eq
That's really short for use at top band. Take the tap to the highest point that doesn't rotate, bring the wire down out 4 or 5 feet from the tower, and use an omega match. 73, Guy http://join.msn.com
You may have hit the nail on the head. Sounds exactly like an expensive antenna to erect in those circumstances. If you can get your mitts on telephone poles cheep and have a means to erect... Even g
It is a formidable task for an experienced modeler. Full of difficulties. It's like trying to learn how to hit a baseball starting on major league curve balls. directors and a an http://messenger.msn
Pete, Try this with EZNEC, using the figures I gave you, and using the mininec ground, run the ground quality toward poor and watch the gain go up. Use a ground constant of .001/3 and you should get
Finally dug up the specifics of the disparity. To say that Mininec is "inaccurate under .2 wavelength" because ground loss inaccuracies can become "significant" really doesn't do the job about when t
Modeling a TH7 will be difficult in any event, due to the need for exact component specifications in the traps. It would be better to use an existing model for a non trapped beam of the same number o
I remember sometime being told to use a one foot diameter conductor for a tower, but that was a while ago, and there are some older email caches that got lost in a HD crash. That's difficult to use i
Probably the best answer is that it's a waste of time, depending. The principle amount of gain from a two/three element element yagi (either kind) is taking as much of the radiation from one side and
Using EZNEC or one of the programs that allows you to specify good, medium, poor, very poor, use "very poor". You get no help from that stuff, at all. Dense and extensive ground screens are required
Reply to list or dl1rg@ruscher.net: Hi, 2 years ago I bought NEC-Win Plus+. Now I am looking for the actual Patch. I got Version 1.1.2 by Nittany Scientific and the Patch up to 1.1.4 ( I lost this Pa
Hi all, We have been using the same server for the contesting.com mailing lists for the past 6 years or more. N5KO and I paid for the original server, and I've paid for a new motherboard and a hard d
Anyone have a live email address for K6STI? Anything new from him? Does he still support some of his programs? Would like to get AO Pro from him if he's still distributes. - - . . . . . . - - . . . .
Following forwarded. Original bounced due to invalid format. Send any direct replies to hremijn@zeelandnet.nl - - . . . . . . - - . . . . - - . . - . . 73, Guy k2av@contesting.com Apex, NC, USA == Fr
The old "feed the 80 meter dipole like a 160 vertical" trick, or so it appears. Just guessing, since your description doesn't tell me enough, that you have an 80 meter dipole up in the air, let's gue
Does anyone have any specific information on how to go about getting a NEC-4 license from UC? I can't find anything on the web. There's some magic word or something I don't have. - - . . . . . . - -
Oohh. Not without using graph paper to draw and reentering the coordinates. Would love it if someone had a better way. --. .-.. 73, Guy Guy Olinger, K2AV k2av@contesting.com Apex, NC, USA -- FAQ on W
Author: Guy Olinger, K2AV" <k2av@contesting.com (Guy Olinger, K2AV)
Date: Thu, 7 Oct 1999 01:22:10 -0400
With the gracious help and patience of W4AN and AD1C, I have taken over the admin duties for the Antennaware list-server, which I am happy to do. It will not go QRT. As you were... - - . . . . . . -
This seems to be one of those degree of effect things. Model ling of plain (no traps, no bends, no loading, no 4 inch element separations, just aluminum tubing, etc) elements and their combinations h
Passing this on, if you are using yahoo.com to send mail but not using a yahoo reply address. It is a complex problem, but after a dozen or two readings you get the gist. At its root, it's all about