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146 links and 1 categories about half h on dxzone.com

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Antennas : 160M
  • A Practical Antenna for 160 Metres  pop - 140 feet of insulated wire, the first half of which (70 feet) is space wound on an insulated tube.
    [ Hits: 84300 | Votes: 35 | Rating: 6.75 ]
  • K2YWE's Compact 160m Lazy-U Antenna - This compact 160m antenna is a half-wave dipole with a vertical section. It requires no radials and has worked well for me.
    [ Hits: 15517 | Votes: 12 | Rating: 6.84 ]
Antennas : 30M
  • Attic 30 m dipole antenna - A full size half-wave 30m dipole installed in an attic
    [ Hits: 5795 | Votes: 3 | Rating: 6.33 ]
Antennas : 6M Antennas : Dipole
  • The Monoband HF dipole antenna - If you are looking for an easy antenna for your favorite band, you can't go wrong with an halfwavelenght dipole, all you need is 3 insulators and some wire
    [ Hits: 3020 | Votes: 4 | Rating: 8.75 ]
Antennas : End-Fed
  • Portable QRP HF Antennas - Notes on the end-fed half-wave antenna, single-band stub-fed EFHW and a multiband EFHW antenna
    [ Hits: 5499 | Votes: 1 | Rating: 7.00 ]
  • How to make an end-fed antenna work  pop - Here is a sure fire way to make end-fed halfwave antennas fed with a 50 ohm coupler work - without long radials, grounds, chokes, voodoo.
    [ Hits: 36091 | Votes: 19 | Rating: 6.27 ]
Antennas : End-Fed : End Fed Half Wave Antenna
  • End-Fed Halfwave Antenna - The end-fed halfwave antenna is a resonant half wavelength long antenna like a dipole antenna except for it is fed at its end rather then in the center. This antenna is as old as radio and is probably best known as the Zepp Antenna
    [ Hits: 22349 | Votes: 14 | Rating: 7.85 ]
Antennas : Feed Lines
  • Low loss Japanese coaxial cable - 5D-FB,8D-FB,10D-FB cables offer very low attenuation comparable to that of famous Andrews' Heliax and 8D-FB is almost half that of standard RG-213 for an equivalent diameter!
    [ Hits: 773 | Votes: 2 | Rating: 9.00 ]
Antennas : Magnetic Loop
  • GM3MXN Magnetic Loop Antenna - This article describes a loop usable from 7 - 21 mHz, using half inch copper tube 3 feet in circumference
    [ Hits: 1575 | Votes: 0 | Rating: 0.00 ]
Antennas : Quad
  • Assembly of the Lightningbolt Quad - One of the best antenna values on the market is the LightningBolt Quad. At about half the cost of a tri-band yagi, you get five band coverage with a single coax feedline and excellent performance from a light, low wind load antenna.
    [ Hits: 3261 | Votes: 10 | Rating: 6.80 ]
Antennas : Sloper
  • A half slooper for 160 meters - Italian article includes picturer and plans to homebrew an half-slooper antenna for 160 meters band
    [ Hits: 6975 | Votes: 3 | Rating: 6.00 ]
  • Half-sloper antenna for 40-80 - K9CZB QST article about sloper antenna project for 40 and 80 meters band
    [ Hits: 9952 | Votes: 9 | Rating: 4.34 ]
Antennas : Theory
  • Maximum Usable Angle - We are all familiar with Maximum usable frequency. Maximum usable angle is the other half of the maximum usable frequency equation.
    [ Hits: 106 | Votes: 0 | Rating: 0.00 ]
Antennas : Wire
  • Half square antenna - The elevated half square antenna is a very simple antenna that can be constructed from common materials yet gives significant improvement over a dipole at the same elevation. Ground mounted versions of this antenna are commonly used in amateur radio for 75/80 and 160 meter bands
    [ Hits: 6861 | Votes: 3 | Rating: 7.67 ]
  • How create simple dipoles - How to create a simple but effective half wave dipole, illustrated instrucions on how to build wire antennas
    [ Hits: 3110 | Votes: 4 | Rating: 6.50 ]
CB Radio : Clubs
  • Australian ACBRO Team Inc 1980 - Advocates to the Australian Federal Government on behalf of all CB radio clubs and operators, to maintain, improve and oversee the Australian CB Radio Service.
    [ Hits: 671 | Votes: 1 | Rating: 1.00 ]
DX Resources : Callsigns
  • EI Call Listings - EI Call Listings are maintained by Joe Ryan, EI7GY on behalf of IRTS
    [ Hits: 2218 | Votes: 3 | Rating: 6.33 ]
Manufacturers : Antennas : HF : Small & Stealth Antennas
  • Hy Power Antenna Company - Full size or shortened dipoles, Single band or Multi band, Half Square Antennas, Fan Dipole Antennas, Delta Loop Antennas, Antennas completely assembled Loading coil packages, delta loops
    [ Hits: 4797 | Votes: 6 | Rating: 9.17 ]
Manufacturers : Antennas : HF : Vertical Antennas
  • K4TR Antennas - K4TR Manufacture and sell simple dipoles, half square 2 wire phased vertical arrays, end fed zepp antennas, G5RV antennas. 1:1 baluns
    [ Hits: 3591 | Votes: 7 | Rating: 8.86 ]
Manufacturers : Morse Key
  • QRP J-38 Telegraph Key - QRP J-38 fine quality half scale telegraph key
    [ Hits: 1718 | Votes: 3 | Rating: 5.67 ]
Operating Modes : Amateur Radio Astronomy
  • Jodrell Bank - Nuffield Radio Astronomy Laboratories (NRAL) - NRAL at Jodrell Bank are a part of the University of Manchester's Department of Physics and Astronomy. The Laboratories are home to the Lovell Telescope and the MERLIN & VLBI National Facility which is operated by the University on behalf of PPARC.
    [ Hits: 391 | Votes: 1 | Rating: 10.00 ]
Operating Modes : DSP
  • Mfsk - MFSK is an easy-to-use chat mode for real-time amateur contacts, nets and bulletin transmissions, but not intended for contesting or Bulletin Board System (BBS) use. It is a half-duplex non-Automatic Repeat ReQuest (ARQ) forward-error-correcting (FEC) mode. It performs well on long-path fading conditions and in the presence of interference
    [ Hits: 375 | Votes: 0 | Rating: 0.00 ]
Operating Modes : MFSK
  • Mfsk - MFSK is an easy-to-use chat mode for real-time amateur contacts, nets and bulletin transmissions, but not intended for contesting or Bulletin Board System (BBS) use. It is a half-duplex non-Automatic Repeat ReQuest (ARQ) forward-error-correcting (FEC) mode. It performs well on long-path fading conditions and in the presence of interference
    [ Hits: 615 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Software Defined Radio
  • Wavefront CompactPCI (CPCI) RF converter - The Wavefront CompactPCI (CPCI) RF converter provides a complete half-duplex radio front-end in an industry-standard 6U format. The architecture consists of dedicated receive and transmit channels that share a common RF interface.
    [ Hits: 746 | Votes: 0 | Rating: 0.00 ]
  Result Page:  1 2 3 4 5 6 [next]
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