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antenna wire length

26 links about antenna wire length on dxzone.com

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Antennas : 160M
  • 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: 6026 | Votes: 15 | Rating: 6.14 ]
  • TX Four Square Antenna - A 220-ft tower that has five catenary lines, each about 500 feet long. Four of these lines, running NE, SE, SW, and NW support four 1/4-wavelength wire verticals used in a 160-meter four-square antenna.
    [ Hits: 571 | Votes: 0 | Rating: 0.00 ]
Antennas : Antenna Calculators
  • Antenna wire catenary calculator - This is a simple calculator for solving the antenna wire catenary between to end points given the design wind speed, mass per unit length of the wire, wire diameter and Gross Breaking Strength of the wire.
    [ Hits: 2516 | Votes: 6 | Rating: 3.17 ]
Antennas : Beverage
  • 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 bi-directional reception.
    [ Hits: 6011 | Votes: 4 | Rating: 7.50 ]
Antennas : Dipole
  • Inverted Vee monoband antenna - This project will enable you to build a monoband long wire inverted vee with 3/4 wave length sides that will have a bit of gain
    [ Hits: 1961 | Votes: 1 | Rating: 10.00 ]
  • 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 co-ax cable and a connector for your scanners antenna input
    [ Hits: 3689 | Votes: 6 | Rating: 6.50 ]
Antennas : G5RV
  • The G5RV Antenna System Re-Visited - The original G5RV antenna system consists of a center-fed horizontal 102' wire plus a 34' length of open-wire 525-Ohm feeder. Louis Varney, the antenna system's developer, intended two other features. Learn more at Cebik website
    [ Hits: 4189 | Votes: 0 | Rating: 0.00 ]
Antennas : Homebrewing Techniques
  • Yagi Element Mounting Considerations - One of the most important considerations when designing and building a Yagi antenna is the method used to attach the elements to a boom. This is true because the boom influences the electrical length of the elements. In this article JH Reisert explain with drawings techniques on mounting yagi antenna elements to a boom
    [ Hits: 3749 | Votes: 0 | Rating: 0.00 ]
  • Antenna Trimming Chart - Use this chart as an aid in trimming the length of your antenna. It gives you an idea of the change in wire length needed to move antenna resonance a specific number of KHz.
    [ Hits: 2738 | Votes: 3 | Rating: 7.00 ]
Antennas : Magnetic Loop
  • G4FON Magnetic Loop Antenna - A simple multi-band magnetic loop antenna designed for 20, 30 and 40 metres, but by changing the overall length of the wire coverage of other bands is feasible
    [ Hits: 1217 | Votes: 1 | Rating: 10.00 ]
Antennas : Moxon
  • Moxon Rectangle Calculator - Program to calculate the dimentions of a Moxon Rectangle. All equations correlated to NEC antenna modeling software for wire diameters from 1e-5 to 1e-2 wavelengths.
    [ Hits: 4744 | Votes: 18 | Rating: 5.93 ]
Antennas : OCF
  • Fundamentals of Off-Center-Fed Dipoles - Off-center-fed dipoles (OCFs) are 1/2-wavelength wire antennas fed at neither the center nor the end, but somewhere between--off-center
    [ Hits: 3649 | Votes: 0 | Rating: 0.00 ]
Antennas : Portable
  • A Portable Multi-Band Magnetic Loop Antenna  pop - Described here is a simple multi-band magnetic loop antenna designed for 20, 30 and 40 metres, but by changing the overall length of the wire coverage of other bands is feasible
    [ Hits: 29358 | Votes: 9 | Rating: 6.11 ]
Antennas : Quad
  • Double Quad For VHF UHF - Double quad wire antenna for the 2m and 70cm band. Each of the two squares is the size of a wavelength by DF7DJ
    [ Hits: 2510 | Votes: 6 | Rating: 3.33 ]
Antennas : Receiving
  • How to build a tuned loop antenna - How can you vastly improve your Medium Wave reception? its quite simple really, all you need is 120 foot of wire, a few lengths of timber and an old tuning capacitor with which you can build the answer to every DX'ers prayers, a tuned loop antenna.
    [ Hits: 19826 | Votes: 11 | Rating: 7.73 ]
  • Build a Tuned Loop - How can you vastly improve your Medium Wave reception? its quite simple really, all you need is 120 foot of wire, a few lengths of timber and an old tuning capacitor with which you can build the answer to every DX'ers prayers, a tuned loop antenna.
    [ Hits: 2753 | Votes: 0 | Rating: 0.00 ]
Antennas : Shortwave
  • Long Loopstick Antenna - Wound on a 3 foot length of PVC pipe, the long loopstick antenna was an experiment to try to improve AM radio reception without using a long wire or ground.
    [ Hits: 3782 | Votes: 1 | Rating: 10.00 ]
Antennas : Spiral
  • Petlowany Antennas by K6NO - WorldRadio Article on Petlowany antennas base on this principle: if a length of wire is wound into a spiral-shaped coil and excited by a radio frequency current connected to the innermost portion of the coil, it will then, and only then, exhibit RF characteristics that closely approximate those of a resonant linear wire of the same length
    [ Hits: 2775 | Votes: 8 | Rating: 6.75 ]
Antennas : Theory
  • Interference Cancelling System - The use of interference signal cancellation has been around for some time. The idea is to use an auxiliary antenna almost any random length of wire in addition to the main receiving antenna
    [ Hits: 1585 | Votes: 1 | Rating: 3.00 ]
Antennas : WiFi Antennas : Windom
  • Windom Antenna with 4:1 balun - The Windom is an Off-center wire multiband Antenna. The old version was fed just by a single-wire connected on 1/3 of antenna's overall length or with an open-line feeder (later versions). Here is another model with coaxial feeder, which is compatible with Solid States - 50 Ohm output transceivers .
    [ Hits: 6773 | Votes: 3 | Rating: 7.67 ]
Antennas : Wire
  • Random length wire antennas - Random Length Wire Antennas by WIPL
    [ Hits: 509 | Votes: 1 | Rating: 10.00 ]
  • LF/VLF Portable Loop Antenna - The octoloop antenna is a length of 25 pair telephone wire inside an octagonal loop shield of 3/4 hard copper pipe
    [ Hits: 3359 | Votes: 11 | Rating: 5.08 ]
  • The Zeppelin antenna - It consists of a radiating wire with a length equal to the half-wave of the fundamental frequency for which the antenna is cut.
    [ Hits: 1762 | Votes: 1 | Rating: 6.00 ]
  • Long wire antenna random wire - About longwire antennas, technically to be a true longwire an antenna needs to be at least one wavelength long, but common use of the term by Hams is for any random wire length that is end fed.
    [ Hits: 1067 | Votes: 2 | Rating: 4.00 ]
  Result Page:  1 2 [next]
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