wave length cal
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Antennas : 160M KE4UYP Linear loaded vertical antenna
 This is a vertically and horizontally polarized antenna the Linear loaded 1/4 wave length vertical radiator introduces very little loss for 80 or 160 meters
[ Hits: 12920  Votes: 17  Rating: 6.58 ]
 The 160M Homebrew Vertical
 The 160M "No Excuses" Homebrew Vertical is a 27 ft. vertical antenna, made from three 10 ft. PVC sections bolted together, and half wavelength of antenna wire helically wound around the PVC sections by K6MM
[ Hits: 6266  Votes: 15  Rating: 6.14 ]
 A Potpourri of 160Meter Verticals
 A potpourri of 160Meter vertical antennas and modeling issues, invertedL, 3element parasitic array, 1/4wavelength monopole
[ Hits: 3485  Votes: 0  Rating: 0.00 ]
 Amateur Vertical Antenna Calculator
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 This basic calculator is designed to give the aproximate length (height) of a particular vertical antenna, for the frequency and wavelength chosen.
[ Hits: 43662  Votes: 184  Rating: 5.37 ]
 Quarter Wave GP Antenna Calculator
 Amateur quarter wave ground plane antenna calculator, calculate vertical and radial length
[ Hits: 4499  Votes: 21  Rating: 6.04 ]
 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: 1668  Votes: 0  Rating: 0.00 ]
 Build a Basic Beverage Antenna
 Basically the Beverage is a travelling wave antenna made of a length of wire a small height (relative to the wavelength of interest) above earth. It can be terminated for unidirectional reception or left unterminated for bidirectional reception.
[ Hits: 6904  Votes: 5  Rating: 7.00 ]
 Dipole Calculation
 Determining your proper length for the open halfwave dipole antenna
[ Hits: 4741  Votes: 11  Rating: 4.36 ]
 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: 2174  Votes: 2  Rating: 5.50 ]
 TX Four Square Antenna
 A 220ft tower that has five catenary lines, each about 500 feet long. Four of these lines, running NE, SE, SW, and NW support four 1/4wavelength wire verticals used in a 160meter foursquare antenna.
[ Hits: 657  Votes: 0  Rating: 0.00 ]
 Super JPole for 435MHz
 The Super J Pole antenna is a colinear vertical consisting of a number of half wave length vertical elements separated with halfwave length stubs (Tuning stub) feed with a folded matching stub by vk6ysf
[ Hits: 3212  Votes: 6  Rating: 5.00 ]
 The 3D Folded Loop Antenna
 This article will introduce you to an antenna author call the 3Dimensional Folded Loop. This
antenna is the result of his continuing efforts to compact fullsize antennas by folding and
bending the elements. A onewavelength loop that is reduced in height and width by being folded into three dimensions.
[ Hits: 3572  Votes: 1  Rating: 1.00 ]
 Moxon Rectangle Calculator
 Program to calculate the dimentions of a Moxon Rectangle.
All equations correlated to NEC antenna modeling software for wire diameters from 1e5 to 1e2 wavelengths.
[ Hits: 5653  Votes: 20  Rating: 5.68 ]
 Quarter Wave Verticals
 One of the most useful antennas in the repertoire is the Marconi or quarter wave grounded vertical antenna. Its invention made it possible to halve the length of antennas, simplifying communications, especially at HF and below.
[ Hits: 1644  Votes: 2  Rating: 7.00 ]
 Five eighths wavelength vertical antenna
 The basics of a five eigths wavelength vertical antenna, a form of RF antenna widely used for mobile radio communications applications
[ Hits: 330  Votes: 0  Rating: 0.00 ]
 VHF 5/8wave vertical antennas
 By Guy, de ON6MU, At VHF, both the 1/4wavelength monopole and the 5/8wavelength monopole antennas are widely used.
[ Hits: 1800  Votes: 3  Rating: 4.00 ]
 Wlan antenna Waveguide type
 This antenna is constucted only of a cylindrical can and a N connector with centre tap lengthened
[ Hits: 5354  Votes: 9  Rating: 5.66 ]
 Dominion Radio Astrophysical Observatory
 operates the sevenantenna Synthesis Telescope (ST), the 26meter Telescope, and the 10cm Solar Flux Monitor. It is a member of the Canadian Galactic Plane Survey , a project to map 60 degrees of the Galactic plane at numerous wavelengths with a uniform sensitivity.
[ Hits: 429  Votes: 1  Rating: 1.00 ]
 Radio Works
 RadioWORKS is a tool for calculating various items related to radio waves and radio wave propagation. Get detailed information about a frequency, such as the freespace wavelength, band classification, propagation methods, common transmitter configurations, etc. Calculate antenna lengths or frequencies. View a 3D coverage map by providing a latitude / longitude coordinate and transmitter height.
[ Hits: 2620  Votes: 4  Rating: 4.75 ]
 Coaxial Cable & Power Handling
 This calculator can be used to estimate the attenuation (dB loss), power handling capability, and transmission efficiency for some of the more popular Wireless Communications and MIL Spec cables at the frequency of interest
[ Hits: 1028  Votes: 8  Rating: 8.17 ]
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