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293 links - and 6 categories

Antennas : 160M
  • A Lowband Antenna that is Almost Free  pop - The Shunt-fed Tower, an effective Low Band Antenna, uses your beam as a capacitive top-hat and only needs a simple feed network and a good ground system to work DX on 80M and 160M.
    [ Hits: 17847 | Votes: 4 | Rating: 7.75 ]
Antennas : 2M
  • Experiments with a Moxon Rectangle antenna - An easy to build moxon antenna for portable use. A Moxon Rectangle is a two element beam, where both elements are folded towards eachother.
    [ Hits: 3325 | Votes: 6 | Rating: 8.67 ]
Antennas : HexBeam Antennas : Multiband
  • The 5 Bands Wire-Beam - This wire-beam has one radiator-element, feeded with 450-Ohm-Wireman-twinlead and needs an antenna-tuner. For the bands 6m, 10m, 12m, 15m, 17m and 20m bended reflector-elements are used. The support is a cross of 4 fibreglass-fishing-rods
    [ Hits: 5525 | Votes: 2 | Rating: 7.00 ]
  • Types of multiband antennas - Types of multi-band antennas for the HF bands, from the horizontal end fed wire, to g5rv, log periodics, trap dipoles, vee beams and rhombic antennas.
    [ Hits: 10033 | Votes: 11 | Rating: 6.18 ]
Antennas : Quad
  • Vertical plane antennas' beaming comparision - Animated quad and yagi comparison. You can see antennas' characteristics behavior in a vertical plane with changing of the height.
    [ Hits: 3030 | Votes: 17 | Rating: 4.10 ]
Antennas : Satellite
  • Handi-Tenna portable satellite antenna - Here is a high-performance hand-held beam antenna that is easy to build and guaranteed to improve your downlink from the LEO satellites over ANY rubber duck or mobile whip
    [ Hits: 12523 | Votes: 7 | Rating: 7.37 ]
Antennas : Theory
  • Antennas basics  pop - An antenna study guide by NZART, cover basic topics like dipoles, wave lenght calculation, baluns, beams, dummy loads, and measurements.
    [ Hits: 23957 | Votes: 14 | Rating: 8.21 ]
  • Mini-Beam Geometry Basics - There is a natural progression of the geometry of the "mini-beams" deriving from the basic yagi, which in itself owes a lot to the common dipole. By Dick Stevens, N1RCT
    [ Hits: 413 | Votes: 1 | Rating: 1.00 ]
  • Why a Beam Antenna - Some basic antenna information for the newcomer
    [ Hits: 840 | Votes: 1 | Rating: 10.00 ]
Antennas : WiFi
  • Biquad Antenna Construction - This page details the construction of a biquad antenna. The biquad antenna is easy to build, and provides a reliable 11dBi gain, with a fairly wide beamwidth.
    [ Hits: 9097 | Votes: 19 | Rating: 7.57 ]
Antennas : Wire
  • A Hexbeam in 3 hours - EI7BA describes a nice selfmade Hexbeam project for a single band version.
    [ Hits: 3041 | Votes: 1 | Rating: 8.00 ]
Manufacturers : Accessories
  • VBI-360 Beam Indicator - VBI-360 Beam Indicator - New Display Units, Repairs & Map Upgrades, SteppIR, Green Heron, 90 Degree Offset, Global Beam Display, CGARS, Hy Gain, Roto-Brake
    [ Hits: 330 | Votes: 3 | Rating: 8.67 ]
Manufacturers : Antennas : HF : Vertical Antennas
  • KVK Antenna Systems - The manufacturer of the NuBeam, Vipole, and the multi-band Quad-Folded-Dipole (or QFD for short) antenna. Also have a unique multiband vertical which can combine operation on multiple HF frequencies as well as provide high gain on 50, 144 and 438MHz in a single antenna.
    [ Hits: 3665 | Votes: 1 | Rating: 1.00 ]
Manufacturers : Antennas : VHF UHF Microwave : Yagi Antennas
  • SOTA Beams - Dedicated to State-of-the-Art lightweight portable radio
    [ Hits: 1192 | Votes: 2 | Rating: 7.50 ]
Operating Modes : Radio Direction Finding
  • VectorFox - VectorFox is a software born to incorporate a PC into the fox hunting environment. VectorFox is able to take inputs from up to 5 sources, such as a 2m beam, a 2m signal meter, a TDOA, etc, and display the results on the screen. VectorFox also accepts Agrelo inputs. From these results the operator can choose which indication is best and have a line drawn on the map in the direction of the signal.
    [ Hits: 1241 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Calculators
  • Amateur Radio RF Safety Calculator - University of Texas Amateur Radio Club RF-Calculator. This is a main beam power density estimation program intended for use as part of a routine evaluation of RF safety compliance with FCC regulations
    [ Hits: 5624 | Votes: 26 | Rating: 7.81 ]
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