1m antenna

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1m antenna

37 links

Antennas : 2M
  • Budget-Friendly 5-Element Quad Antenna Design - Constructing a 5-element quad antenna, the author aimed for low cost and simplicity, resulting in an effective design with 11 dBi gain and SWR of 2:1 or better across the 2-meter band. Using wood and dowels, the antenna costs under $8 and takes less than two hours to build with basic tools. The model predicts excellent performance, confirmed by ARRL Lab measurements. Practical field results demonstrate improved communication, even in simplex mode.
    [ Hits: 64 | Votes: 0 | Rating: 0 ]
Antennas : 40M : 40 meter Dipole Antennas
  • A shortened 40 meter rotary dipole - The antenna build into this project is made from 2 fishing poles on a fiberglass pole in the center.
    [ Hits: 1209 | Votes: 4 | Rating: 4.75 ]
Antennas : 6M : 6 meter Yagi Antennas Antennas : 70cm
  • GP antenna for 70 cm - A 70cm ground plane antenna made with a 90cm of 1mm silver steel rod
    [ Hits: 587 | Votes: 3 | Rating: 7 ]
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 : Beverage
  • The Wave Antenna for 200-Meter Reception - A QST Article published in November 1922 is about the origin of Beverage antennas, an unidirectional antenna type that was discovered and experimented for the first time in that period. This article is the introduction to beverage antenna theory, by the homonimous autho H. H. Beverage.
    [ Hits: 203 | Votes: 0 | Rating: 0 ]
  • A Reversible Beverage at ZL3IX - How do two-wire reversible direction Beverages work, an excellent document that explains fundamentals of beverage antennas.
    [ Hits: 515 | Votes: 0 | Rating: 0 ]
Antennas : Capacitive
  • Microvert Antenna for 40m by ON7IR - A mircovert antenna assembled for the 40m version of the DL7PE antenna. A one meter long aluminum tube with 24mm diameter is used for the base (element 1) and a 50cm aluminum tube with 20mm diameter for element 2 (the extention). A pvc pipe, 34cm long and with a diameter of 38mm, is used to wind the coil on (1mm enamelled copper wire).
    [ Hits: 149 | Votes: 0 | Rating: 0 ]
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: 111 | Votes: 0 | Rating: 0 ]
Antennas : End-Fed : End Fed Half Wave Antenna
  • HF EFHW Antenna Antenna Tuner - Schemaric diagram for a 80m, 40m, 30m, 20m EFHW Antenna Antenna Tuner. The tuner has been designed for an antenna length of 41m and the counterpoise 7.5m.
    [ Hits: 117 | Votes: 0 | Rating: 0 ]
Antennas : Magnetic Loop
  • A Small Loop for 20 and 15 meter band - A Small Transmitting Loop Antenna for 14MHz and 21MHz, an antenna you might consider if you have limited space, Based on material originally published in Amateur Radio, November 1991
    [ Hits: 421 | Votes: 0 | Rating: 0 ]
Antennas : Portable
  • Balcony Mounted Buddistick Antenna by KP4MD - The antenna handles 250 watts and covers 40 through 10 meters, with an optional add on coil for 80 and 60 meters. The author in this pages includes an interesting video in which describes the antenna setup, and the importance of the shunting coil on lower bands like 40 and 80 meters. SWR curves diagrams are also included and demonstrate the influence on resonating frequency of the shunting coil.
    [ Hits: 279 | Votes: 3 | Rating: 10 ]
Antennas : Satellite
  • VHF-UHF Portable Yagi-Uda Antenna - Homebrew UHF VHF portable Yagi-Uda antenna design and construction notes for satellite operations
    [ Hits: 1240 | Votes: 2 | Rating: 3 ]
  • 70cm Eggbeater Antenna - Building a LEO satellite ground station, and eggbeater antenna for the 70cm band
    [ Hits: 239 | Votes: 1 | Rating: 7 ]
Antennas : Theory
  • Folded Dipoles in Yagi Uda Antennas - A folded dipole is an antenna, with two conductors connected on both sides, and folded to form a cylindrical closed shape, to which feed is given at the center.
    [ Hits: 303 | Votes: 2 | Rating: 4.5 ]
Technical Reference : Antenna Switch
  • Fully automatic antenna switch project - Cheap and simple fully automatic antenna switching that permit to automatically select the proper antenna based on transceiver status activity.
    [ Hits: 85 | Votes: 0 | Rating: 0 ]
Technical Reference : Arduino
  • The AntennaPi - This is a remote antenna switch I use in my attic to connect transceivers in the basement to multiple antennas in the attic. The goal of this project is to be able to remotely connect one of the antennas in the attic to the only antenna cable available.
    [ Hits: 132 | Votes: 0 | Rating: 0 ]

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