ch 24 antenna

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ch 24 antenna

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Antennas : 160M
  • 160 meter linear loaded Inverted L antenna - The total length of the inverted L is 240 feet, which is 7/16th of a wave length long. It has a 92 foot horizontal linear load section 1 foot above ground that terminates into a home-brewed parallel network tuner by KN4LF
    [ Hits: 4146 | Votes: 5 | Rating: 5.6 ]
Antennas : 6M : 6 meter Yagi Antennas
  • 3 Element Yagi for Six meter band  pop - Plans for 3 elements beam antenna and gamma matches
    [ Hits: 40397 | Votes: 40 | Rating: 5.57 ]
  • Six Meter Yagi Beam - Article describing how to homebrew a yagi antenna for 50 MHz, includes plans for a four and five elements yagi beam and details how how match impedence with a gamma match
    [ Hits: 1035 | Votes: 3 | Rating: 4.33 ]
Antennas : 80M
  • 80m Shortened Dipole Antenna - This antenna just requires about 24m of free space instead of 41m that a normal half wave 80m antenna needs to hang up. The so called loaded dipole uses a coil in every dipole arm to electrically lengthen the mechanical too short dipole arms. Every coil has an inductivity of 120 microHenry.
    [ Hits: 152 | Votes: 0 | Rating: 0 ]
Antennas : Array Antennas : Bazooka
  • Double-Bazooka - Broadband dipole antenna, needs an antenna tuner but can reach 3db gain over dipole
    [ Hits: 5414 | Votes: 17 | Rating: 7.01 ]
Antennas : CobWeb
  • Building a CobWebb Antenna - Homebrew a cobwebb antenna for the HF bands. This page describe a cobwebb multiband antenna resonating on 14 18 21 24 and 28 MHz. The cobweb antenna model can be considered a fan dipole, or better, multiple dipoles fed in parallel.
    [ Hits: 1484 | Votes: 5 | Rating: 7.6 ]
Antennas : Delta loop
  • 160m Inverted Delta Loop - This 160 meter Delta Loop antenna is made of Hard drawn copper wire AWG 10, the two upper side are 148.5 foot each base wire is 240.9 foot, the feed point at 30.69 foot to one corner, feed with 450 Homs balanced line to an antenna tuner on the ground, then with 50 homs coax to the shack.
    [ Hits: 108 | Votes: 0 | Rating: 0 ]
Antennas : End-Fed : End Fed Half Wave Antenna
  • End-Fed HalfWave Matching Unit for SOTA operations - An end-fed half wave antenna matching unit made of 3:24 turns ratio on a FT140-43 toroid with a 150pF capacitor across the input.
    [ Hits: 259 | Votes: 0 | Rating: 0 ]
  • 1:49 unun for end fed half wave antennas - 1:49 UNUN using two stacked FT240-43 cores for end fed halfwave antenna. To match the end fed half wave antenna to the coaxial feeder, it is necessary to have a matching network or transmission line transformer.
    [ Hits: 384 | Votes: 10 | Rating: 8.1 ]
Antennas : J-Pole
  • Ladder line J-Pole - Building a VHF or UHF Ladder Line J-Pole Antenna
    [ Hits: 1010 | Votes: 2 | Rating: 5.5 ]
Antennas : Mobile
  • Antennas for HF mobile operation  pop - The following description should give you guidance on how to build a mobile antenna for HF bands yourself, using a very cheap CB-mobile whip antenna base. Antennas for mobile operation 7Mhz ,10Mhz, 14Mhz, 18Mhz, 21Mhz, 24Mhz,28-430Mhz
    [ Hits: 90279 | Votes: 80 | Rating: 5.12 ]
Antennas : Multiband
  • JJ6 Antenna - Beam antenna for 14-18-21-24-28-50 Mhz by G4ZU in french
    [ Hits: 1553 | Votes: 2 | Rating: 1 ]
Antennas : Receiving : EWE Antennas : Satellite
  • Dish Antenna for 2.4 GHz Satellite Reception - Modified 80cm Offset Dish for 2.4 GHz Satellite Reception. This 50-ohm impedance antenna allows, when connected to 2.4GHz preamplifier and downconverter, to receive Amateur satellites with 2.4GHz transponders such as AO-40.
    [ Hits: 317 | Votes: 1 | Rating: 5 ]
Antennas : Tuners
  • W8ZR High-Power Antenna Tuner - This homebrew legal-limit antenna tuner is based on the famous "Ultimate Transmatch" introduced by the late Lew McCoy, W1ICP. The Ultimate Transmatch was described in the "Beginner and Novice" section of the July 1970 QST (Page 24).
    [ Hits: 11494 | Votes: 10 | Rating: 8.1 ]
Antennas : WiFi
  • Do-It-Yourself Wireless Antennas - Your guide to wireless antennas, how to build a wireless antenna without spending much money The Pringles Cantenna, Coffee Can Antenna, Parabolic Reflector and Antenna Designs. Combine a homemade Tripod Mount with an inexpensive Pistol Grip and go Wardriving.
    [ Hits: 10994 | Votes: 10 | Rating: 6.3 ]
  • Coffee Can WiFi Antenna - This wi-fi antenna design is a much simpler DIY project than the pringles cantenna. Basically there are 3 parts to a build-your-own 2.4 Ghz cantenna kit: a pigtail, an N-female connector and a metal coffee can.
    [ Hits: 1298 | Votes: 1 | Rating: 1 ]
Technical Reference : 3D Printed Projects
  • 3D Printed Accessories for the FT-817 and KX2 - DC plug adaptor using an XT60 connector. 18650 Lithium battery 3 cell carrier, Three band end fed half wave antenna, XT60 chassis mounted flange.
    [ Hits: 179 | Votes: 0 | Rating: 0 ]
Technical Reference : SWR Meters
  • WiFi SWR meter - An home made SWR meter for 2.4 GHz. A DIY SWR meter that allow precise measurements and calibration of any WiFi antenna. This is test equipment everyone who build wifi antennas should have in their shack. Article is in french and include some videos.
    [ Hits: 1698 | Votes: 10 | Rating: 4.9 ]

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