half wave

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half wave

139 links - and 1 categories

Antennas : 17M Antennas : 60M
  • 60 Meter EF-HW antenna - 60 Meter End Fed Half Wave Antenna Tuner with large pictures of the 5 MHZ antenna tuner
    [ Hits: 563 | Votes: 5 | Rating: 9.4 ]
Antennas : 80M
  • 80M Grounded Half Loop - The grounded half loop describe in this article is basically a half wave length wire on 80 Meters
    [ Hits: 1116 | Votes: 1 | Rating: 1 ]
Antennas : Dipole
  • Your first antenna - the half-wave dipole - RSGB article for beginners. How to build a dipole antenna, construction tips and correct setup of inverted-ve dipole antennas
    [ Hits: 381 | Votes: 0 | Rating: 0 ]
  • Vertical Dipole Array - A simple and awesome wire monoband antenna, very usefull for portable and dxpeditions usage, consist of two elements, a driver and the reflector. This endfed halfwave gives a very low take off angle and is very suited for chasing DX.
    [ Hits: 1254 | Votes: 2 | Rating: 6.5 ]
Antennas : End-Fed
  • Multiband end fed antennas - This is a 200 Watt PEP step up transformer for end fed full and half wave antennas without radials, designed as a 200 Watt PEP
    [ Hits: 2273 | Votes: 9 | Rating: 7.32 ]
Antennas : End-Fed : End Fed Half Wave Antenna
  • End Fed Half Wave Antenna Coupler - Centre fed half wave dipoles make great, simple and effective antennas for the HF bands. Sometimes however, the centre feed is not ideal. This great project will improve the overall antenna performance.
    [ Hits: 1426 | Votes: 1 | Rating: 10 ]
  • 20m Half-Wave End Fed  updated - 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: 1841 | Votes: 7 | Rating: 8 ]
  • EFHW matching unit - End-Fed Half Wave matching unit project, based on a FT140-43 with SWR plot tests made using capacitor and without.
    [ Hits: 902 | Votes: 2 | Rating: 10 ]
  • QRP Multi-band EFHW antenna for SOTA - Link End Fed Half Wave Antenna and Tuner for SOTA designed to work on 15m, 20m, and 40m.
    [ Hits: 1532 | Votes: 4 | Rating: 5.75 ]
  • Yet Another EFHW Matcher - An end-fed-half-wave antenna matcher project based on a FT-82-43 core with a 100 pF and 45 pF capacitor in parallel
    [ Hits: 696 | Votes: 3 | Rating: 9 ]
  • End-Fed HalfWave Matching Unit for SOTA operations - An end-fed half wave antenna matching unit made of 3:24 turns ratio on a FT140-43 toroid with a 150pF capacitor across the input.
    [ Hits: 259 | Votes: 0 | Rating: 0 ]
  • End Fed Half Wave Antenna Coupler - A home made end-fed half-wave antenna coupler with antenna lenght calculator and counterpoise calculator based on center frequency. Includes pictures and drawings along to antenna homebrewing instructions with a home made on air wound transformer
    [ Hits: 282 | Votes: 0 | Rating: 0 ]
Antennas : Fan Dipole
  • Half Wave Fan Dipole Antenna - Amateur Radio 40m 20m 15m Half Wave Fan dipole antenna project with part list, pictures and drawing. Includes the option to expand the antenna to cover the 80 meters band
    [ Hits: 678 | Votes: 1 | Rating: 1 ]
Antennas : J-Pole
  • Improving the Super-J - The collinear J-Pole, often known as the Super-J, does improve the behavior over a regular J-Pole. As many attest, there is an advantage when vertically combining 1/2 radiating sections to have a bit of separation between the half-wave end points. The Super-J has very little separation between the two half-wave radiators.
    [ Hits: 971 | Votes: 2 | Rating: 5.5 ]
Antennas : Portable
  • Portable wire antennas - This document describe serveral wire antennas, from the folded dipole, to the common halfwave monoband antenna for those who want to make HF portable operations in holiday.
    [ Hits: 839 | Votes: 2 | Rating: 1 ]
Antennas : Sloper
  • 2.6 MHz Halfwave Sloper - The 2.6 Mhz M Dipole is constructed from #10 stranded insulated wire available in most hardware stores. The feedpoint uses a T-section of PVC pipe
    [ Hits: 386 | Votes: 0 | Rating: 0 ]
Antennas : Tuners
  • End fed half wave tuner - End fed half wave tuner a handy tool for field day and portable operations
    [ Hits: 1055 | Votes: 2 | Rating: 9.5 ]
Antennas : VHF UHF
  • ZigZag Antenna - VHF/UHF unconventional antennas - An unconventional antenna family, the VHF/UHF Zigzag Dipole Antennas. Design, theory and practical construction, transformation and balancing with a half wave balun.
    [ Hits: 745 | Votes: 2 | Rating: 8.5 ]
Antennas : Vertical
  • The C-Pole Antenna - C-Poles for 20m and 6m, it is a folded half-wave dipole with an asymmetrical tapped 50-Ohm-point in the lower part of the antenna. Design hints by DK7ZB
    [ Hits: 932 | Votes: 47 | Rating: 8.3 ]

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