Antennas
The ARRL Antenna Book: The Ultimate Reference for Amateur Radio Antennas, Transmission Lines And Propagation (Arrl Antenna Book)
American Radio Relay League (Paperback) Amer Radio Relay League 2007-05-01
Condition: New
ISBN13: 9780872599871
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$30.32
Antennas Answers
imsety An amateur antenna must be no higher that 200 feet. This is measured from the ground level at the base of the tower up to the top of the antenna structure.
http://www.qsl.net/k0alv/newsoct06.html< br />
* Have a Good Day *
~ Don ~
A short time lapse video of Benny, John, and the crane putting up a 6 meter quad and a 20 meter beam. But first, Benny takes down a couple of ...
I am looking into building an antenna that was featured in the December 2008issue of CQ. It calls for 10 or 12 gauge solid copper wire. I did a search through Radio Shack and I am coming up with several types of wire.
What type of wire should I be using for this antenna?
Thanks.
I USED 10 GA SOLID COPPER
WITH A BLACK PLASTIC COVER
REMOVING 2 FT FROM ONE END
TO MAKE A TRAP LOOP I RAN 2
EA FROM BOTH ENDS OF MY 50
FT HOME DROPED DOWN 20 FT
AND GROWNED ONE LINE TO A
6 FT COPER GROUNDING ROD
THE OTHER TO MY EICO TRANSMITTER FACING EAST=
WEST AND TALKED TO EVERYONE
IN SO AMERICA AND AROUND THE
GLOBE IN A 300 W HOMEMADE
THIS ANTANA WORKS WONDERS
ON CB AND SCANNER RECEPTION
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
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.
Price:
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3 dBd gain VHF/6 dBD gain UHF
2 sections
Heavy-duty fiberglass construction
8-ft tall
144?48 MHz/30?450 MHz
Look for a book called THE ARRL ANTENNA BOOK
http://www.amazon.com/gp/product/0872598 047/102-3355905-9209734?v=glance&n=2 83155
Yes, you can lose 75-90% of your radio reception by using sprayed radiant barrier. Even worse, sprayed on radiant barrier doesn't even work well. The aluminum must not be physically touching anything else to reflect heat properly, so only radiant foil stapled to the rafters is effective.
Buy Cheap Antennas
VHF marine antenna for a VX-8R
Think of it just like a vertical dipole, only in this case the feedline is only the length of the SMA or BNC connector. The stock antenna is already connected to the center conducter of that connecter, but it doesn't have the other half of the antenna (well, it actually uses your body). So by attaching a small wire around the ground part of that SMA/BNC connector, you've just made it into a vertical dipole.
News
Sep 09 Alfred Powell Morgan: the Eternal Boy Turns 120ARRL - Sep 10, 2009
Indeed, his renown extends all the way back to the dawn of Amateur Radio in the United States. Alfred Morgan prefaced his 1942 publication, First Radio Book and morenbsp;raquo;ARRL - Aug 29, 2009
Rank these measuring tools in order of least precise to most precise: Bonus: What tool is also the name of a popular antenna and why? and morenbsp;raquo;eHam.net - Aug 17, 2009
According to MFJ Founder Martin Jue, K5FLU, Cushcraft Amateur Radio Antenna products have long been a popular source for a wide range of HF,ARRL - Aug 20, 2009
Aug 20 The Amateur Amateur: Diary of a Mad Ham#39;s WifeThat means that he#39;s raising the antenna mast. Is it over? Can I breathe again? That#39;s his radio. He#39;s testing his antenna modifications. What a racket. and morenbsp;raquo;Chicago Tribune - Aug 15, 2009
The ham operators will be easy to spot Saturday, manning a radio with a 30-foot antenna at the historic lighthouse at Sheridan Road and Central Street.Philadelphia Inquirer - Aug 16, 2009
For them, the image of the gray-haired ham radio hobbyist tinkering with capacitors, carrier frequencies and coaxial antenna cables is as old-fashioned asARRL - Sep 02, 2009
October 2, 2009: Amateur Radio Emergency Communications Level 1; Antenna Modeling; Radio Frequency Interference; Antenna Design and Construction;


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