antenna city


antenna city

16 links

Antennas : 2M

  • ZR6KMD 2M Beam Antenna - This design was adapted from an article in the ARRL Handbook and built with simplicity and duplicity in mind. This antenna is a vast improvement over a standard dipole with a forward gain of around 8db with a front to back ratio of 10db.
    [ Hits: 2056 | Votes: 1 | Rating: 2.00 ]
  • Squarooka Antenna - squared bazooka for 2 meters band - Sort of similar to the one of the 6m omni. Instead of using twin-lead, this design makes use of a more or less regular double bazooka antenna (coaxial dipole). Your attention shall be drawn to the available standart literature, such as Rothammel. In order to "compute" the dimension, Karl Rothammel mentioned that the total length of the dipole shall be 95% of the free-space wavelength. The short-circuit bridges (closing the folded dipole) are to be placed at a distance-fraction being equal to the velocity factor of the coax cable used, which will be 66% using RG-58 or RG174.
    [ Hits: 175 | Votes: 0 | Rating: 0.00 ]
Antennas : 40M : 40 meter Delta Loop Antennas
  • ZZ Wave Net - ZZ Wave Net is a 40 & 80 meter full wave loop designed to fit on a city lot. ZZ Antenna is a folded dipole bent into an inverted V loop
    [ Hits: 9438 | Votes: 9 | Rating: 6.79 ]
Antennas : 80M
  • 80m mobile antenna - The antenna is made in four sections which consists of a base matching coil, a helical section, a centre loading coil and the top whip section with its capacity hat by G4DCH
    [ Hits: 2326 | Votes: 1 | Rating: 10.00 ]
Antennas : Antenna Calculators
  • Calculate Antenna Lenght in feet, inches and meters - Inches and meters Javascript Wavelength Calculator allow to input a frequency in MHz and calculate wavelenght in several units considering also fractions of wavelenght and the velocity factor. Includes an usefull inch to meter converter
    [ Hits: 262 | Votes: 2 | Rating: 6.50 ]
Antennas : Bazooka
  • 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: 11410 | Votes: 53 | Rating: 5.37 ]
Antennas : End-Fed
  • Multiband trapped end fed antenna - A multiband trapped end-fed antenna can cover 20 30 40m bands. An option for portable sota operations were weight end simplicity are essential
    [ Hits: 540 | Votes: 0 | Rating: 0.00 ]
Antennas : Homebrewing Techniques
  • How To Build A Stacking Harness - How to build a home brew coax harness for co-phasing and/or stacking 2 50 Ohm antennas, includes a table with velocity factor of common coaxial cables
    [ Hits: 2355 | Votes: 7 | Rating: 6.14 ]
  • Coaxial antennas - G3TXQ study on coaxial cable demonstrate that it can reduce an element's length by something approaching the Velocity Factor of the cable
    [ Hits: 1168 | Votes: 1 | Rating: 10.00 ]
Antennas : Magnetic Loop
  • Magnetic Loop Antenna Project - River City Amateur Radio Communications Society magnetic loop antenna project, design an capacitor homebrewing
    [ Hits: 793 | Votes: 2 | Rating: 2.50 ]
Antennas : Shortwave
  • Magnetic Loop antenna  pop - Why is an Magnetic Loop antenna so special, this antenna is picking only the magnetic part of the elektro magnetic radio wave. The big advantage of this antenna is that the electric interference from the big city have no influence on the received signal
    [ Hits: 48647 | Votes: 53 | Rating: 5.83 ]
Antennas : Theory
  • Quarter Waves and Velocity Factor - Coax Velocity Factor in Baluns, Does it Matter? Test results show coaxial cable velocity factor does not always enter into stub length calculations especially in the world of Baluns
    [ Hits: 128 | Votes: 0 | Rating: 0.00 ]
Antennas : Theory : Wind Load
  • Antenna Wind Loading Standards - The Rated Wind Velocity and Loading for antennas is calculated using industry standard TIA-329-C.
    [ Hits: 1136 | Votes: 12 | Rating: 5.17 ]
Antennas : WiFi
  • Build A Tin Can WiFi Antenna - Build a tin can waveguide WiFi antenna in one hour. Then put it on a 18" inch direct tv dish. No coax signal loss. Use a USB device on antenna. Complete instructions to build this powerful wlan antenna
    [ Hits: 9122 | Votes: 36 | Rating: 5.74 ]
Manufacturers : Towers and Accessories
  • ICOMM Tele Limited - Largest Capacity of 200,000 MT for Towers & market leader in India with backward integrated rolling & manufacturers of Shelters, V/UHF, Patch Panel Antennas, DIAS & DWDM Equipment
    [ Hits: 842 | Votes: 2 | Rating: 5.50 ]
Shopping and Services : CB Radio Stores
  • Cb City - Authorized dealer for ranger magnum wilson francis k40 antennas wilson cell antennas ect.
    [ Hits: 10450 | Votes: 27 | Rating: 6.92 ]

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