20 meter

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20 meter

408 links - and 4 categories

Antennas : 6M : 6 meter Yagi Antennas
  • 3 Element Yagi Antenna Plan for 6 meter - A short boom, wideband 3 element yagi antenna plan for six meters that cover the entire band with a resonable performance and a 50 Ohm SWR of less 2:1. Article appeared in QST August 2007
    [ Hits: 365 | Votes: 0 | Rating: 0.00 ]
Antennas : Array Antennas : Dipole
  • Trapped Dipole for 15/20 Meters Bands - An easy to build dipole for 21 and 14 MHz with traps made by two T50-6 toroids cores mounted on a simple PCB foil
    [ Hits: 322 | Votes: 0 | Rating: 0.00 ]
Antennas : Four Square
  • 80M 4-Square - An antenna project to obtain a bigger signal on the 80 Meter (3.5 to 3.8 MHz) amateur radio band
    [ Hits: 378 | Votes: 0 | Rating: 0.00 ]
Antennas : J-Pole
  • 3 band J-Pole Antenna - Pictures of a 2 meter, 220, 440 copper J-Pole antennas
    [ Hits: 1453 | Votes: 7 | Rating: 5.00 ]
  • VHF UHF Jpole - Pictures of a home made J Pole antenna for 70cm and 2 meters band
    [ Hits: 1026 | Votes: 7 | Rating: 6.00 ]
Antennas : Magnetic Loop
  • Magnetic Loop Antenna for 40-20m - If you have space constraint at your QTH for a HF antenna, you can try contructing this HF magnetic loop antenna for 40-20 meters bands
    [ Hits: 741 | Votes: 2 | Rating: 3.00 ]
Antennas : Mobile
  • An HF Mobile Antenna - An home made HF mobile multiband antenna inspired by the KM4IE HF 20 dollars antenna or the Texas Bugcatcher can work 75 to 15 meters band with an acceptable SWR.
    [ Hits: 396 | Votes: 0 | Rating: 0.00 ]
Antennas : Moxon
  • A 20 meter Moxon Antenna - Moxons work great, and they take up less space than full size two element Yagis
    [ Hits: 991 | Votes: 1 | Rating: 8.00 ]
  • 20 Meter Moxon Vertical - The Vertical Moxon had everything I was looking for, a low TOA (Takoff Angle), wide horizon coverage, and good impedance loading. All of this was in a small enough package to fit in my relatively small back yard.
    [ Hits: 286 | Votes: 0 | Rating: 0.00 ]
  • 20 m Moxon Antenna - A home made moxon antenna for 20 meters band
    [ Hits: 222 | Votes: 1 | Rating: 8.00 ]
Antennas : Portable
  • Portable lightweight link dipole - A multi band portable link dipole antenna for 20 30 and 40 meters band
    [ Hits: 485 | Votes: 0 | Rating: 0.00 ]
  • The Stake Stick Vertical - A portable HF vertical antenna that can be used from 10 to 20 meters band
    [ Hits: 277 | Votes: 0 | Rating: 0.00 ]
Antennas : Stealth
  • Four-Foot Stealth Antenna - The Four-Foot Vertical is a stealth Magnetic Wire Loop antenna for 20 meters band
    [ Hits: 644 | Votes: 3 | Rating: 5.00 ]
Antennas : Wire
  • Safari - Inverted V antenna - A dual band portable inverted V antenna for 80 and 40 meters band with dimensions for other bands and several assembling instruction
    [ Hits: 313 | Votes: 0 | Rating: 0.00 ]
Radio Equipment : HF Portable Antenna : Buddipole Radio Equipment : HF Portable Antenna : Super Antennas MP-1
  • Elevated MP-1 Antenna - A test with a superantenna MP-1 on a tripod operating HF bands on 40 20 and 17 meters band
    [ Hits: 299 | Votes: 0 | Rating: 0.00 ]
Technical Reference : HF Radios
  • 160m 20w AM transmitter - Born as a companion transmitter for the Yaesu FRG-7 receiver has become a stand alone tramsmitter for 160 meters band
    [ Hits: 191 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Power Meter
  • A 500 Watt HF Dummy Load and Power Meter - This project was published in the April 2004 issue of the Australian magazine Amateur Radio, and has been designed using parts which are very readily available.
    [ Hits: 762 | Votes: 0 | Rating: 0.00 ]
Technical Reference : QRP Projects : QRP CW Transceiver
  • 2N2/20 CW Transceiver - 2N2/20 - A 20 Meter, Discrete Component CW Transceiver Built Manhattan-style
    [ Hits: 140 | Votes: 0 | Rating: 0.00 ]
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