antenna

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antenna

4260 links - and 178 categories

Antennas : 10M
  • Mobile Antennas for 10 Meters - Interesting article on mobile antennas by Cebik, W4RNL
    [ Hits: 6643 | Votes: 4 | Rating: 3.5 ]
  • DK7ZB-5-Band-Quad - 2 element Quand antenna for 10 - 12 - 15 -17 - 20 meters band
    [ Hits: 10903 | Votes: 10 | Rating: 7.61 ]
Antennas : 160M
  • Ground System on a 160M vertical - Ground system measurements on a 160 M vertical by Rudy Severns N6LF
    [ Hits: 1911 | Votes: 1 | Rating: 10 ]
  • A Lowband Antenna that is Almost Free - 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: 18744 | Votes: 4 | Rating: 7.75 ]
Antennas : 20M : 20 meter Vertical Antennas
  • 20m T-Monopole - 20m T-Monopole short vertical antenna for 20 meters by AA5TB
    [ Hits: 12199 | Votes: 6 | Rating: 8.33 ]
Antennas : 2M Antennas : 40M : 40 meter Dipole Antennas Antennas : Baluns
  • HF Home made Balun  pop - A balun is a device that is used at the feedpoint of a balanced antenna when an unbalanced feedline is desired to feed the antenna. Balun is a contraction for BALanced to UNbalanced.
    [ Hits: 39397 | Votes: 30 | Rating: 5.91 ]
Antennas : End-Fed
  • How to make an end-fed antenna work  pop - Here is a sure fire way to make end-fed halfwave antennas fed with a 50 ohm coupler work - without long radials, grounds, chokes, voodoo.
    [ Hits: 43947 | Votes: 30 | Rating: 6.71 ]
Antennas : End-Fed : End Fed Half Wave Antenna
  • End-Fed Halfwave Antenna - The end-fed halfwave antenna is a resonant half wavelength long antenna like a dipole antenna except for it is fed at its end rather then in the center. This antenna is as old as radio and is probably best known as the Zepp Antenna
    [ Hits: 24207 | Votes: 18 | Rating: 7.55 ]
Antennas : Feed Lines
  • Feeding the Beast - Transferring Radio Frequency Energy from Your Transmitter to Your Antenna by Don Keith N4KC
    [ Hits: 521 | Votes: 1 | Rating: 10 ]
Antennas : Helical
  • A two dollar helical hf portable antenna - Here is 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: 22387 | Votes: 14 | Rating: 7.65 ]
Antennas : Quadrifilar Helix
  • QFH antenna for weather satellite band - This article describes how to make a quadrifilar helix (QFH) antenna easily, from inexpensive materials: uPVC plumbing pipe and RG-58U co-axial cable
    [ Hits: 4214 | Votes: 16 | Rating: 5.25 ]
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: 13272 | Votes: 7 | Rating: 7.37 ]
Manufacturers : Antennas : HF : Dipole Antenna
  • Cobra UltraLite Antennas - The alternative multi-band solution, covers more bands than a G5RV, light weight, won't damage your trees.
    [ Hits: 3391 | Votes: 23 | Rating: 7.52 ]
Operating Modes : EME Operating Modes : Mobile : Bicycle
  • Bicycle-Mobile antenna - WA5FRF VHF mobile antenna for bicycle installation
    [ Hits: 6038 | Votes: 2 | Rating: 9.5 ]
Operating Modes : Radio Direction Finding
  • A low power 3.5MHz ARDF transmitter - This low power transmitter is developed for ARDF exercising purposes but of course can be used as super QRP transmitter either. With 1 or 2 meter wire as antenna and a ARDF receiver with ferrite-rod antenna the range is about 100m but with better antennas and a 'real' receiver the range is probably much larger.
    [ Hits: 2041 | Votes: 4 | Rating: 6.5 ]
Technical Reference : Duplexers
  • AA5TB Antenna Coupler / SWR Bridge - Wire antennas requires a special coupling network to properly couple my 50 ohm coax to the antenna's high impedance (5000 ohms)
    [ Hits: 4748 | Votes: 2 | Rating: 9.5 ]

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