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109 links about about v antenna on dxzone.com

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Antennas
  • Antenna Basics - Article designed to answer basic questions about antennas
    [ Hits: 10011 | Votes: 20 | Rating: 6.35 ]
Antennas : 160M
  • 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: 23888 | Votes: 24 | Rating: 6.13 ]
Antennas : 2M
  • QM5 Yagi for 2 meters band - The QM5 antenna is a simple 5 elements Yagi with 1.88 m boom length for the lower 144 MHz SSB/MGM band, I used it mainly for Sporadic-E and MS contacts. It exhibits a forward gain of 9.17 dBd; i.e. 11.3 dB forward gain over the isotropic radiator, while the F/R is about 11.5 dB. Elements
    [ Hits: 5966 | Votes: 4 | Rating: 5.25 ]
  • QM7 7 elements 144 MHz Yagi-Uda Antenna - The QM7 antenna is a simple 7 elements Yagi with 3.70 m boom length for the lower 144 MHz SSB/MGM band, used it mainly for Sporadic-E and MS contacts. It exhibits a forward gain of 11.35 dBd; i.e. 13.5 dB forward gain over the isotropic radiator, while the F/R is about 12.5 dB
    [ Hits: 5008 | Votes: 13 | Rating: 5.69 ]
Antennas : 80M
  • A magnetic loop antenna for HF  pop - Able to cover all frequencies between 3.5 and about 10 MHz, the loop described here is directional, does not require a radial system, and stands just 1.8 metres tall. Most parts needed can be purchased at a hardware shop. The antenna can be put together in an afternoon and requires only hand tools to assemble. It should cost less than sixty dollars to build. by Peter Parker VK3YE ex VK1PK
    [ Hits: 84698 | Votes: 27 | Rating: 4.45 ]
Antennas : Feed Lines
  • Understanding Standing Wave Ratios SWR - We worry a lot about Standing Wave Ratio (SWR) in amateur radio since SWR is one indication of how well our antenna system is working. Most HF transceivers and antenna tuners have built in SWR meters. SWR is a measure of a transceiverís output power verses the portion of that power reflected by the antenna system By Ken Larson KJ6RZ
    [ Hits: 7977 | Votes: 8 | Rating: 4.75 ]
Antennas : G5RV
  • G5RV Antenna  pop - Notes, and considerations about the G5RV antenna
    [ Hits: 73662 | Votes: 55 | Rating: 6.18 ]
  • G5RV All-Band HF Antenna  pop - ABout g5rv antennas,with radiation pattern produced with eznec by K2HQ
    [ Hits: 28902 | Votes: 12 | Rating: 4.08 ]
Antennas : Helical
  • Quadrifilar Helix Antennas - The purpose of this page is to provide information and links about Quadrifilar Helix Antennas. It's the best antenna to use for APT satellite reception
    [ Hits: 5105 | Votes: 5 | Rating: 4.60 ]
Antennas : Magnetic Loop
  • Wellbrook ALA 1530 active magnetic loop review - Interesting review about active magnetic loop antenna Wellbrook ALA 1530 and 330S by ON4SKY
    [ Hits: 3460 | Votes: 4 | Rating: 6.75 ]
  • Thinking about Ideal Loops - Loop antennae have been used from ELF to UHF since the beginning of radiocommunications. At low frequencies, the main problem for loop antennae is to have enough sensitivity; the antenna being very small respect to the wavelength the collected energy is also small. To increase the output level the loop may be made resonant, so loosing it%u2019s intrinsic aperiodic characteristics.
    [ Hits: 1655 | Votes: 0 | Rating: 0.00 ]
Antennas : Portable
  • A two dollar helical hf portable antenna - Hereís an easily transportable vertical antenna for 20 meters collapsible to 4 feet that costs about $2.00 to make. This was created as a fun project to demonstrate how to enjoy operating HF in the field with a home-made portable antenna without spending a ton of money. Bev AH6NF (YL) made this antenna, tuned and ready to operate in less than one hour
    [ Hits: 18321 | Votes: 10 | Rating: 7.30 ]
Antennas : Theory
  • Inductors used in antenna matching networks - Article about variometers, helipot inductors, roller inductors, binary switched inductors, Coil and Capstan by G3YNH
    [ Hits: 386 | Votes: 1 | Rating: 1.00 ]
  • Antennas : theory and designs - Thierry LOMBRY, ON4SKY, develops in several long articles all you need to know about antennas, their design and performance, for both amateurs and SWL
    [ Hits: 8887 | Votes: 11 | Rating: 3.27 ]
  • Antenna Selection Made Easy - This page will help you answer important questions about antenna selection before you talk to a supplier. After reading this paper, you should be able to better determine the most important parameters you need to know for your antenna selection criteria.
    [ Hits: 1725 | Votes: 2 | Rating: 3.00 ]
Antennas : Traps
  • How antenna traps work - An interesting article about homebrewing antenna traps for multiband antennas by VE3GK
    [ Hits: 9062 | Votes: 26 | Rating: 6.34 ]
Antennas : VHF UHF
  • Big Wheel Antennas - About big wheel antennas for VHF and UHF
    [ Hits: 553 | Votes: 4 | Rating: 4.50 ]
Antennas : Wire
  • Folded Dipole  pop - All about folded dipoles, a variation of the dipole is an antenna called a folded dipole. It radiates like a dipole but sort of looks like a squashed quad.
    [ Hits: 29791 | Votes: 24 | Rating: 5.75 ]
  • HF Wire antennas - About HF Wire Antennas for field day or any day a basic wire antenna article by VE3NXB
    [ Hits: 1228 | Votes: 1 | Rating: 1.00 ]
CB Radio : Personal Pages
  • 14RC132 AE511 Jerome - Some infos about my radio activity, my favorite hobby, my shack, antennas, photos, links, mods,...
    [ Hits: 4809 | Votes: 0 | Rating: 0.00 ]
Manufacturers : Antennas
  • Signal Engineering - Signal Engineering technologically advanced antennas with modern design and construction technique. Up to date information about current line of high performance 10 and 11 meters antennas.
    [ Hits: 4335 | Votes: 15 | Rating: 8.21 ]
Operating Modes : Stealth Amateur Radio
  • HF Antennas for restricted space - Arrl document about invisible antennas and indoor systems. It is important to consider that few compromise antennas are capable of delivering the performance one can expect from the full-size variety. But the patient and skillful operator can often do as well as some fellows who are equipped with high power and full-size antennas. The "cliff-dweller" may not be able to "bore a hole" in the band as often, and as easily, but DX can be worked successfully when band conditions are suitable.
    [ Hits: 6951 | Votes: 6 | Rating: 4.83 ]
Shopping and Services : Regional : USA
  • Universal Radio  pop - Online Catalog. All about Radio comms, HF VHF Scanner CB radios, antennas and accessories
    [ Hits: 27295 | Votes: 31 | Rating: 7.09 ]
Software : Antenna analysis
  • Yagi Sterss - A full featured, graphical, user friendly program that performs structural analysis on horizontally polarized yagi antennas constructed from round tubing. YS can work in Imperial or Metric Units, and is likely to tell you more about a yagi antenna than you ever thought you needed to know. YS has been used by commercial manufacturers and premier station builders for over a decade by Kurt Andress, NI6W
    [ Hits: 5549 | Votes: 1 | Rating: 7.00 ]
Technical Reference : Lightning Protection
  • About Lightning Protection - What You Should Know About Lightning Protection by Joseph H. Reisert
    [ Hits: 2751 | Votes: 1 | Rating: 8.00 ]
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