20 meter

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20 meter

409 links - and 4 categories

Antennas : 160M Antennas : 2M
  • 5 Element, 2 Meter Yagi Antenna  updated - Five- Element, 2 Meter Yagi for around $20. This antenna is easy on your wallet and easy to build!
    [ Hits: 2134 | Votes: 9 | Rating: 4.11 ]
Antennas : 40M
  • 2 element GP for 7 MHz  updated - A 2-element Parasitic Ground Plane for 40 Meters concept antenna
    [ Hits: 607 | Votes: 3 | Rating: 7.00 ]
Antennas : 40M : 40 meter Dipole Antennas
  • Postage Stamp 40 Meter Wire Dipole Antenna - Build yourself a postage stamp 40 meter wire dipole antenna that fits in a space a little over 20 wide and works reasonably well at low heights
    [ Hits: 2414 | Votes: 5 | Rating: 6.50 ]
Antennas : 6M : 6 meter Yagi Antennas
  • 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: 616 | Votes: 3 | Rating: 4.33 ]
Antennas : 80M
  • 80 meter Inverted L - Experiments with an 80 meter Inverted L Quarter wave antenna
    [ Hits: 687 | Votes: 0 | Rating: 0.00 ]
Antennas : Array
  • Optimized 40M Vertical Array - A two element 40 meter vertical antenna array. A real project built, tuned and tested.
    [ Hits: 800 | Votes: 1 | Rating: 4.00 ]
Antennas : CobWebb
  • 4-BAND COLA ANTENNA 20-17-15-10m - Concentric Open Loop Antenna Fed Off-Centre similar to the cobwebb antenna but resonating on 20-17-15-10 meters band
    [ Hits: 5889 | Votes: 13 | Rating: 8.32 ]
Antennas : Delta loop
  • 2 Elements Delta Loop for 14 MHz - A delta loop antenna for 20 meters band designed with MMana with a tuning system made in a classic stub configuration
    [ Hits: 269 | Votes: 0 | Rating: 0.00 ]
Antennas : Dipole
  • A Co-ax Trap Dipole - A Co-ax Trap Dipole For 40, 30 and 20 Meters or at Llast that was the intention
    [ Hits: 668 | Votes: 0 | Rating: 0.00 ]
Antennas : End-Fed
  • End-Fed 40-6 - End-Fed 6-40 Meter Multiband HF Antenna and an inexpensive, multiband, end fed HF antenna matchbox that is quick and easy to setup and use
    [ Hits: 1369 | Votes: 2 | Rating: 6.00 ]
  • Multiband End-Fed Antenna - A homebrew project for a multiband end-fed antenna made with a single FT140-43 and 50pf capacitor and 20 meters of wire.
    [ Hits: 2663 | Votes: 6 | Rating: 6.33 ]
Antennas : G5RV
  • G5RV JR 10-40 - The G5RV JR cover 10-40 meters band a project by PU2OKE
    [ Hits: 1173 | Votes: 2 | Rating: 5.50 ]
  • 160-RV - Top Band G5RV Antenna  updated - How to turn a G5RV antenna into a 160 meter band antenna with easy to find parts. A G5RV adapter for tob band by Thomas AD1B
    [ Hits: 1840 | Votes: 1 | Rating: 9.00 ]
Antennas : Moxon
  • 20 Meter Moxon Antenna - A club project experiment about a vertical Moxon antenna for 20 meter band
    [ Hits: 1037 | Votes: 0 | Rating: 0.00 ]
Antennas : OCF
  • OCF Dipole - This is a popular antenna design as the performance is very good across the HF bands and requires little or no tuning. It is a dipole fed off center with a 4:1 current balun at the offset feedpoint. The antenna shown covers 80, 40, 20 and 10 meters with 15 meters and WARC bands
    [ Hits: 1528 | Votes: 2 | Rating: 9.00 ]
Antennas : Vertical
  • The 10/15/20 Meter Trap Vertical Antenna - This antenna project came out very nice. It's a rugged homebrew multi-band trap vertical antenna that works the 10, 15, and 20 meter amateur radio bands. The antenna can be mounted on the ground or on a mast. Mounted on the ground the antenna has a low take off angle for working DX. If mounted on a mast the antenna will acheive both a low angle as well as another radiation lobe that has a much higher take off angle.
    [ Hits: 2427 | Votes: 7 | Rating: 7.00 ]
DX Resources : Nets : Emergency Nets
  • Intercon 20 meter Net - A member of the 14.300 mHz net family, goal is to provide a means of emergency communications, to handle third party traffic and information between individuals, to promote goodwill and friendly relations among radio operators.
    [ Hits: 59 | Votes: 0 | Rating: 0.00 ]
Technical Reference : QRP Projects
  • The VK3YE Micro 40 DSB Transceiver - A hombrew QRP transceiver for 40 meter band with many pictures, circuit and sound recording of some QSOs made with this Rig consisting of 5 transistor and one chip.
    [ Hits: 589 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Raspberry Pi
  • RaspberryPi WSPR Beacon - WsprryPi turn your Raspberry Pi into a HF WSPR beacon with an output of 10mW and a recommended but simple bandpass filter for 30 meters band
    [ Hits: 498 | Votes: 3 | Rating: 9.00 ]
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