d beam

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d beam

283 links - and 3 categories

Antennas : 2M
  • 2 meter beam - 7dB - 7 dB for 7 Bucks, a 2 meter beam antenna for the cost of a fast food meal!
    [ Hits: 2128 | Votes: 5 | Rating: 5.60 ]
Antennas : 40M
  • 40m Quagi Beam - A 7 MHz wire antenna that is a mix of a Quad and a Yagi design. This antennas are often used on VHF.
    [ Hits: 698 | Votes: 4 | Rating: 7.75 ]
Antennas : 40M : 40 meter Yagi Antennas
  • 40m 2 Element Yagi Beam - A 40 meter band two elements yagi beam with a 6mt boom with pictures and drawings
    [ Hits: 3733 | Votes: 14 | Rating: 6.11 ]
  • 2 Element Helical Yagi Beam for 40m - A helically wound two element 40 meter yagi beam antenna from a 1974 QST article
    [ Hits: 4055 | Votes: 4 | Rating: 7.25 ]
Antennas : 6M : 6 meter Yagi Antennas
  • 6 elements Yagi for 6 meter - A six element yagi beam antenna for 50 MHz by KC4UMO
    [ Hits: 458 | Votes: 1 | Rating: 6.00 ]
  • 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: 636 | Votes: 3 | Rating: 4.33 ]
Antennas : 70cm
  • Handitenna 440 Beam Antenna - A homemade 70cm handitenna made with a PVC pipe
    [ Hits: 560 | Votes: 0 | Rating: 0.00 ]
  • UHF Dual Rectangle Antenna - The antenna described here is a direct-connect dual-rectangle beam for use on 70 cm between 440 and 450 MHz
    [ Hits: 630 | Votes: 2 | Rating: 7.50 ]
Antennas : HB9CV
  • How to make a HB9CV - The HB9CV is a well known two element antenna of a directional beam type with a forward gain of 4 to 5 dBd. This one is for two metres but it can be scaled, from the dimensions in the diagram, for other bands I have also made them for four and six metres
    [ Hits: 614 | Votes: 2 | Rating: 1.50 ]
Antennas : HexBeam
  • Build your own Hexagonal Beam - A web site dedicated to hex beam homebrewing. The hexagonal beam has become a wildly popular antenna. It is a directional antenna that provides great performance and does not require a full scale, expensive tower.
    [ Hits: 831 | Votes: 0 | Rating: 0.00 ]
Antennas : Moxon
  • 70cm Moxon Beam - A moxon antenna project for 70 cm band, test and results of this popular antenna model applies to UHF bands.
    [ Hits: 871 | Votes: 4 | Rating: 5.00 ]
Antennas : Theory : Impedance matching
  • How to make a gamma match - how to make a gamma match for a antenna. The Gamma match is the most used matching device used for yagi beams.
    [ Hits: 753 | Votes: 5 | Rating: 4.80 ]
Antennas : VHF UHF
  • Yagi Antenna for 23cm ATV reception - A home made 23 elements yagi antenna for the 23cm band made on alluminium boom with floating element mounted on a plastic isolators. Includes a table with elements distances and lenght
    [ Hits: 75 | Votes: 0 | Rating: 0.00 ]
Antennas : Yagi
  • 7 Element Yagi for 10m - A 7 elements Yagi Beam antenna for 28 MHz in a project by IV3GKE
    [ Hits: 558 | Votes: 1 | Rating: 10.00 ]
  • YAGI Antenna for 24 Mhz - A 2 elements yagi beam for 12 meters band with liear load
    [ Hits: 207 | Votes: 1 | Rating: 2.00 ]
Manufacturers : Antennas : HF
  • Raibeam Antennas - Ham radio yagi beam antennas manufacturer based in NY USA. Produce monoband and multiband yagi antennas fot HF and VHH
    [ Hits: 361 | Votes: 1 | Rating: 1.00 ]
Operating Modes : Portable Operations
  • Fun and Games with the Spiderbeam 18 Meter Pole - A portable operation experience with a SpiderBeam pole during a contest, testing wire antennas, like dipole and delta loops configurations on 20 40 and 80 meters band.
    [ Hits: 181 | Votes: 1 | Rating: 10.00 ]
Radio Equipment : HF YAGI Antennas : Cushcraft MA5B
  • MA5B Manual - Cushcraft MA5B 20 / 17 / 15 / 12 / 10 Meter Beam Antenna assembly and installation manual
    [ Hits: 266 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Amplifiers : RF Amplifiers Theory
  • Eimac 4CX250B - General Characteristics of the EIMAC 4CX250B and 4CX250FG ceramic/metal forced-air colled, external-anode radial beam tetrodes
    [ Hits: 191 | Votes: 1 | Rating: 1.00 ]
Technical Reference : Test Equipment : RF Sweep Generator
  • Sweep Generator - A sweep generator that produces a sawtooth waveform which sweeps the oscilloscope beam from left to right via its X input, and simultaneously the VCO frequency.
    [ Hits: 344 | Votes: 0 | Rating: 0.00 ]
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