Search Results for "dipole length"
21 links
 Shortened dipole for 10 & 40m bands
 A shorten DualBand Dipole with overall length of about 11 m. For this antenna traps are substituted by inductors, in order to cover the 10 & 40 m. Bands.
[ Hits: 3766  Votes: 1  Rating: 1.00 ]
 Double Extended Zepp Antenna
 This double extended Zepp provides 3 db gain over a dipole on the band it is designed for. Each side or leg is about 5/8 wavelength long.
[ Hits: 24380  Votes: 25  Rating: 6.08 ]
 Loaded dipole for 1,8 Mhz
 Total Length: 26 m (85 ft.); Total Weight: 380 g;
[ Hits: 2210  Votes: 0  Rating: 0.00 ]
 4080 HalfExtended Double Zepp Antenna
 A dualbander for 80M and 40m. An Extended Double Zepp (EDZ) is a 5/4 wavelength centerfed dipole.
This article will introduce the HalfExtended Double Zepp (HEDZ) which has characteristics that a lot of amateur radio operators should find quite interesting
[ Hits: 10305  Votes: 7  Rating: 4.28 ]
 JA7KPI Windom antenna for 4080
 The total length of this antenna is 41m, height is about 11m, and diameter of element is 2mm.
JA7KPI modified this antenna originally used as InvertedV type of 80m band Dipole.
Works on 40  80 meters band with acceptable swr.
[ Hits: 6507  Votes: 4  Rating: 6.25 ]
 40 Meter Bowtie Antenna
 A bowtie antenna is a type of antenna that reputedly provides higher gain at lower radiation angles than a centerfed dipole antenna at heights considerably less than 1/2 wavelength above ground.
[ Hits: 589  Votes: 1  Rating: 4.00 ]
 Bazooka dipole for 70 cm band
 Here is a very simple 70cms dipole from Harald PD2HFE, which uses a single piece of
RG213 coaxial cable 34 cms in length.
[ Hits: 13142  Votes: 15  Rating: 5.94 ]
 Coaxial cable dipole for 80m
 Here are some simple antennas you can build along with calculators to help you get the right length.
[ Hits: 2795  Votes: 1  Rating: 5.00 ]
 Bobtail dipole
 Bobtails are vertical arrays that look like the letter "E" turned 90° clockwise onto its tails. They have 3 quarter wave vertical elements and are one wavelength long. The Half Square is a shortened Bobtail it has 2 quarter wave vertical elements and is a half wave long.
[ Hits: 1575  Votes: 0  Rating: 0.00 ]
 Coax Dipole Calculator
 An efficient program to calculate dimensions of coax dipoles, or bazooka antennas considering velocity length of different coax cables. Express dimensions in feet/inch and meters/cm. Freeware by VE3SQB
[ Hits: 9280  Votes: 44  Rating: 5.32 ]
 Dipole Calculation
 Determining your proper length for the open halfwave dipole antenna
[ Hits: 4691  Votes: 11  Rating: 4.36 ]
 How to make a Simple Dipole Antenna
 It is very easy to create a simple 1/2 wave dipole, all you need is some lengths of wire such as the core of some mains flex or even a straightened out metal coat hanger, some coax cable and a connector for your scanners antenna input
[ Hits: 3810  Votes: 7  Rating: 6.71 ]
 Folding the Dipole
 Invented by Heinrich Hertz in around 1886, the half wave dipole is still one of the most simple and practical of antennas and still very much in use today. It consists of a half wavelength long centre fed conductor
[ Hits: 2123  Votes: 2  Rating: 5.50 ]
 EndFed Halfwave Antenna
 The endfed halfwave antenna is a resonant half wavelength long antenna like a dipole antenna except for it is fed at its end rather then in the center. This antenna is as old as radio and is probably best known as the Zepp Antenna
[ Hits: 22807  Votes: 15  Rating: 7.39 ]
 Adjusting HF Antenna Lengths
 Find out how much to adjust the length of a quarter wave whip or a half wave dipole rather than the outright cutandtry method.
[ Hits: 753  Votes: 4  Rating: 5.75 ]
 Magnetic Loop Antenna
 Although a magnetic loop antenna(aka small loop antenna) is very compact, its efficiency is close to a halfwavelength dipole if carefully built.
[ Hits: 1352  Votes: 1  Rating: 10.00 ]
 Multiband Dipoles
 Random Length Multiband Dipoles can be a good solution for field day operations or outdoor activity, read more at ARRL web site
[ Hits: 570  Votes: 1  Rating: 1.00 ]
 Fundamentals of OffCenterFed Dipoles
 Offcenterfed dipoles (OCFs) are 1/2wavelength wire antennas fed at neither the center nor the end, but somewhere betweenoffcenter
[ Hits: 3798  Votes: 0  Rating: 0.00 ]
 The Lindenblad antenna
 The ultimate satellite Omni Antenna by Howard Sodja, W6SHP. The Lindenblad antenna consists of four half wave folded dipoles slanted 30 degrees to the horizon, oriented 90 degrees to each other in azimuth, spaced 0.3 wavelength apart
[ Hits: 3093  Votes: 2  Rating: 8.00 ]
 W3DZZ multiband dipole
 The multiband trapped dipole is resonant on approx 3.7, 7, 14, 24 7 28.5 Mhz. The overall top length needs to be approximately 32.9 Meters
[ Hits: 8514  Votes: 9  Rating: 2.45 ]
 ZS6BKW Antenna
 How to Build a ZS6BKW Antenna, an optimised version of the popular G5RV multiband Antenna, basically a random length dipole with a 450 Ohm ladder line acting as a 1:1 transformer by VK4MDX
[ Hits: 533  Votes: 2  Rating: 7.50 ]
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