antenna gain

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antenna gain

205 links - and 2 categories

Antennas : 12M
  • Trapped Dipole for 12 and 17 Meters - A small sized and very cheap antenna project that allow you to work on WARC bands with a total gain very close to the dipole in both bands. On 12 meters is a normal dipole, while on 17 is a trapped dipole. Article in Italia
    [ Hits: 882 | Votes: 1 | Rating: 1 ]
Antennas : 15M
  • HyGain LJ-153BA - The HyGain LJ-153BA a monoband 3 element Yagi, designed for the 15 m band 21.00 - 21.45 MHz
    [ Hits: 842 | Votes: 1 | Rating: 4 ]
Antennas : 2M
  • 2m Big Wheel Antenna - A Useful Horizontally Polarised Omni-directional Antenna with Gain for 144 MHz
    [ Hits: 1320 | Votes: 4 | Rating: 7.75 ]
  • A Portable Quad for 2 Meters - Backpacking, boating or mountaintopping ? Invest your time and pack this novel directional gain antenna on your next expedition
    [ Hits: 1574 | Votes: 7 | Rating: 6.86 ]
Antennas : 30M
  • 2 Element 30 meter Yagi Antenna - Dimensions and EZNEC plots for a 2 Element 30 meter Yagi antenna with 28 Ohm featuring 4.3 dBd Gain and a 16dB F/B with a good bandwidth.
    [ Hits: 908 | Votes: 2 | Rating: 6.5 ]
Antennas : 70cm
  • EF7018 - UHF 18 Elements Yagi Antenna Plan - A 70 cm yagi antenna design by YU7EF includes tables with antenna elements dimension and spacing. This UHF Yagi antenna plan provides a maximum gain of 17.93 db
    [ Hits: 321 | Votes: 0 | Rating: 0 ]
Antennas : Collinear
  • 7dB VHF Collinear Antenna - This project is about a cheap way of building a colinear antenna for VHF 145MHz, and having about 10dB more gain than that little 1/4-wave magmount
    [ Hits: 4739 | Votes: 15 | Rating: 6.41 ]
Antennas : Feed Lines
  • Line Loss Calculator - Types of coax-cable with rf attenuator calculator, line loss calculator form includes an antenna gain calculator. This coax loss calculator can help you on choosing the right cable for your antenna sysmte.
    [ Hits: 876 | Votes: 3 | Rating: 6.67 ]
Antennas : HB9CV
  • How to make a HB9CV - The HB9CV is a well known two element antenna of a directional beam type with a forward gain of 4 to 5 dBd. This one is for two metres but it can be scaled, from the dimensions in the diagram, for other bands I have also made them for four and six metres
    [ Hits: 1466 | Votes: 9 | Rating: 4.45 ]
Antennas : Helical
  • Mixed Mode Helical Antenna - An experimental omni-directional antenna for 70cm which has both horizontal and vertical gain
    [ Hits: 1004 | Votes: 3 | Rating: 8 ]
Antennas : Loop
  • Horizontal Loop Antenna Experiments - The HF horizontal loop has been around for many years now. This article includes a YouTube video and discusses the reasons for looking at this antenna, its design, and its installation. There are some on-air comparisons against three regular double bazooka (coax) dipoles and the Par SWL End-Fed antenna.
    [ Hits: 926 | Votes: 5 | Rating: 8 ]
Antennas : Magnetic Loop
  • Magnetic Loop antenna for VHF - A magnetic loop antenna for the VHF band, featuring a high gain that can be compared to a quarter wave vertical antenna
    [ Hits: 730 | Votes: 9 | Rating: 5.99 ]
Antennas : Morgain
  • Morgain Antenna, the old lady - An introduction to history of Morgain Antenna, since the early origins in Virginia, to the current home made projects and design available on the net. Article in Italian
    [ Hits: 1462 | Votes: 6 | Rating: 7.33 ]
  • Morgain Antenna by DL6GD - A schematic antenna for a 40-80 Morgain dipole antenna with diagram and pictures, article partially in german
    [ Hits: 1482 | Votes: 6 | Rating: 6.5 ]
Antennas : Shortwave
  • Curtain Antenna - An antenna for shortwave radio broadcasting consisting of rows and columns of dipoles, is a high gain directional antenna, designed for medium and long range communications.
    [ Hits: 854 | Votes: 0 | Rating: 0 ]
Antennas : Theory : Antenna Gain
  • Antenna Gain - We all think we know about it, we all think we need it, but what is it really?
    [ Hits: 459 | Votes: 0 | Rating: 0 ]
Antennas : Vertical
  • Balloon Vertical Omni-Antennas - Experimenting vertical wire antennas for 40 and 20 meters supported by balloons resulting in excellent gain in RX and good overall performance against horizontal dipole
    [ Hits: 771 | Votes: 1 | Rating: 5 ]
Antennas : Yagi
  • Simple Gain Antennas for the Beginner - You do not need to invest an absurd amount of money to build a beam type of antenna. Good performance can be obtained with simple antennas made from some very ordinary materials. QST article
    [ Hits: 1059 | Votes: 4 | Rating: 6.5 ]
Shopping and Services : Ham Radio Stores
  • SM Elettronica - Italian ham radio dealer for major brands like Icom Kenwood Yaesu HY-GAIN Heil Sound Rigexpert Palstar GAP antennas Diamond SteppIR and others
    [ Hits: 361 | Votes: 9 | Rating: 7.78 ]
Technical Reference : Antenna Rotator
  • Repairing Rotators - An article on CDE/Hy-Gain/MFJ antenna rotator repairing
    [ Hits: 438 | Votes: 0 | Rating: 0 ]

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