Anybody have any good plans for a all band end fed wire antenna ? limited space and i dont want to upset the niegbours so low visibility would be good.
Steve
2006-07-20 03:40:06 · 7 answers · asked by fedup2006 1 in Consumer Electronics ➔ Other - Electronics
There is a difference between a long wire antenna and a long piece of wire used as an antenna.
The former is the correct name for an antenna which is several wavelengths long at the frequency of operation.
The latter is simply a piece of wire which you think, subjectively, to be long.
For low visibility, use very thin wire. Enamelled copper (I think it's generally called magnet wire in the 'States) of something like 32 s.w.g. (sorry, don't have tables at hand to give the U.S. equivalent) will be invisible to your neighbours - and to you, so be careful.
Suspend as long a length as you can manage. Erecting it in a zig-zag across you land or yard will allow you to get more length.
I expect that you know you will need an antenna tuner and a good earth connection from the transmitter and receiver for best antenna efficiency.
Best of luck.
2006-07-20 14:01:22 · answer #1 · answered by dmb06851 7 · 0⤊ 0⤋
Go to the ARRL (American Radio Relay League) web site and look around there or else get any edition of the book they publish about every year since maybe back in the 1940's Called the ARRL Handbook. They are a very excellent source on information on this sort of thing. They have information on theory of operation and plans on how to construct all and I do mean all types of antennas. A more through book on theory would be the one published by Howard W. Sams company called Reference Data For Radio Engineers. It is very thick, expensive and extensive on the subject. Good luck.
2006-07-20 10:54:12 · answer #2 · answered by Anonymous · 0⤊ 0⤋
A longwire antenna is just that, a long wire. The wire is pretty hard to see from any distance so your neighbors shouldn't have much to complain about.
Search the web for "long wire antenna". Here's a site to get you started.
http://www.tpub.com/content/neets/14182/css/14182_207.htm
2006-07-20 09:30:50 · answer #3 · answered by Anonymous · 0⤊ 0⤋
ok, so there are a pair of subject matters to think about. First, you only pick floor radials if you're using a vertical antenna. The radials act as a counterpoise. So, if you're using a horizontal dipole, the dipole has its personal counterpoise. 2d, you weren't sparkling about why your structure does no longer be grounded. Any time you stick some thing up interior the air, it may well be grounded. There are 2 causes for this. the first is for lightening safe practices. the 2d is to burn up undesirable or stray RF skill from getting again into your shack. 0.33, a vertical antenna will artwork better efficient for you on DX than a cord dipole. The cord dipole will in reality furnish you 2 lobes or rules of reception. staring on the height of the dipole, this may style truly. even as a vertical antenna receives carry of and radiate in all rules. 2d, again - counting on height, the vertical antenna may have a decrease perspective of radiation. which ability your signal will bypass farther alongside the exterior of the earth contained in the previous it hits the ionosphere and bounces. in my opinion, I have had awesome consequences with right here: i take advantage a gadget of 2x4's laminated together to sort a mast about 36 ft lengthy. 4 ft is buried and the the relax 32 ft are above floor. I have appropriate a 12AWG cord to that for a vertical radiating ingredient. it extremely is hooked as a lot as an Icom AH-2 distant tuner. I have 4 floor radials (also 32 ft lengthy) buried. we are blessed to have iron wealthy soil, so a crew of radials are not from now on needed. you may be in a position to desire many better proper than 4! I commonly artwork 20m PSK31, yet I have had awesome consequences on all bands (6-80m). From right here in NC, I have worked New Zealand, the middle east, China and maximum of Europe. once you've a tall sufficient tree on your outdoor, you pick to apply the tree to help your vertical cord. this may outcome in an antenna it truly is virtually invisible. once you have not got from now on were given a miles off tuner, you pick to apply a tuner on your shack and run the coax out to a 4:a million or 6:a million balun. then feed one section to the radiating ingredient and one section to the floor radials. regardless of the reality that, you'll lose quite some your skill in losses to SWR on your coax. in case you only plan on operating 20m, then decrease your cord to analyze the middle of the band.
2016-12-01 23:56:30 · answer #4 · answered by Anonymous · 0⤊ 0⤋
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2016-04-23 22:29:04 · answer #5 · answered by ? 3 · 0⤊ 0⤋
i wanted to know how to make a cb antenna and got some good plans off google for all sorts of antennas
2006-07-20 04:15:45 · answer #6 · answered by keith b 3 · 0⤊ 0⤋
coat hangers are good
2006-07-20 03:43:52 · answer #7 · answered by dreadedsilvo 3 · 0⤊ 0⤋