20 m vertical

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20 m vertical

103 links - and 2 categories

Antennas : 20M : 20 meter Vertical Antennas
  • A shortened 20m vertical - A shortened 20m vertical antenna design made with 4Nec2
    [ Hits: 1028 | Votes: 0 | Rating: 0 ]
Antennas : 40M : 40 meter Vertical Antennas
  • High Performance 40 Meters Vertical - 40 meter vertical antenna construction, a shortened easy-to-build vertical, with no-radials, made from surplus military camouflage poles
    [ Hits: 1726 | Votes: 2 | Rating: 8.5 ]
Antennas : Array Antennas : End-Fed : End Fed Half Wave Antenna
  • 20m Half-Wave End Fed - A Half wave antenna has a high impedance feed point. This can be matched using a 1/4 wave stub matching section and converts the 40m vertical into an L-shaped 20m J-Pole antenna. The 300 ohm feeder used for this purpose must be kept away from the ground.
    [ Hits: 1122 | Votes: 2 | Rating: 10 ]
Antennas : Moxon
  • 20 Meter Moxon Antenna - A club project experiment about a vertical Moxon antenna for 20 meter band
    [ Hits: 1268 | Votes: 0 | Rating: 0 ]
Antennas : Multiband
  • 5 Band Telescopic Vertical Antenna - 5 Band 1/4 wave Telescopic Antenna. The 20m to 10m, antenna is simple and cheap to make, and has a performance that matches commercial antennas but at cost considerably lower. The design was purposely based on a telescoping fibre glass fishing rod as this allows it to be easily stowed away in the car.
    [ Hits: 2717 | Votes: 2 | Rating: 9.5 ]
Antennas : Portable
  • Overview on some SOTA portable antennas - A review of some portable antennas for SOTA operations, including linked dipoles, end-fed, verticals
    [ Hits: 570 | Votes: 0 | Rating: 0 ]
  • The Stake Stick Vertical - A portable HF vertical antenna that can be used from 10 to 20 meters band
    [ Hits: 351 | Votes: 0 | Rating: 0 ]
Antennas : Stealth
  • 40 m short vertical - A shortened and invisible wire antenna for 7 MHz
    [ Hits: 4782 | Votes: 12 | Rating: 7.25 ]
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: 2919 | Votes: 8 | Rating: 6.5 ]
  • Fishing Rod Vertical - A homebrew fishing-rod vertical using a very nice design from EB5EKT. This antenna works 20, 30, and 40M bands by selecting the tap points using alligator clips
    [ Hits: 2251 | Votes: 2 | Rating: 8.5 ]
  • Balloon Vertical Omni-Antennas - Experimenting vertical wire antennas for 40 and 20 meters supported by balloons resulting in excellent gain in RX and good overall performance against horizontal dipole
    [ Hits: 638 | Votes: 1 | Rating: 5 ]
  • 20m 40m trapped squid pole antenna - An homemade portable vertical antenna with a trap near the mid point of the main element. The trap is made with 42mm diameter PVC pipe with 9 turns of wire on it
    [ Hits: 2615 | Votes: 5 | Rating: 5.2 ]
Radio Equipment : HF Portable Antenna : Buddipole
  • Buddipole vertical on 40m - A report on working a CQWW SSB on 40m with a vertical buddipole antenna
    [ Hits: 402 | Votes: 0 | Rating: 0 ]
Radio Equipment : HF Portable Antenna : TransWorld Antennas TW2010
  • TW Antennas Assembly - TransWorld Antennas TW2010 Traveler HF Portable Vertical Antenna setup instructions
    [ Hits: 383 | Votes: 0 | Rating: 0 ]
  • TransWorld TW2010L Review - A brief review of the TW2010L Backpacker Antenna. This is a portable vertical antenna covering 10,12,15,17 and 20m
    [ Hits: 282 | Votes: 2 | Rating: 9.5 ]
Radio Equipment : HF Vertical Antenna
  • Butternut HF9V Installation - Assembling installing and tuning the Butternut HF9V multiband vertical antenna
    [ Hits: 506 | Votes: 1 | Rating: 9 ]
Radio Equipment : HF Vertical Antenna : Maldol MFB-300
  • Maldol MFB-300 HF vertical antenna review - The Japanese-made Maldol MFB-300 HF vertical antenna offer extremely wide-band performance, with a specified frequency range of 1.0-60 MHz.
    [ Hits: 214 | Votes: 0 | Rating: 0 ]
Technical Reference : Coax Cables and Connectors
  • PL259 Surge Arrestor - Limiting static surges on dipoles, verticals or end fed antennas
    [ Hits: 740 | Votes: 0 | Rating: 0 ]
Technical Reference : Power Meter
  • A Simple SSB PEP Measuring Procedure - The correct procedure for measuring SSB PEP (Peak Envelope Power), using an oscilloscope with a vertical bandwidth of at least 20 MHz, or a monitor scope.
    [ Hits: 288 | Votes: 0 | Rating: 0 ]

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