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hf radio

611 links and 8 categories about hf radio on dxzone.com

Result Page:  [prev] ... 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 ... [next]

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Antennas : Baluns
  • QRP Magnetic longwire balun with VHF-splitter - This Magnetic Longwire Balun (MLB) makes it possible to efficiently use a coaxial lead-in cable with all forms of longwires, T-forms or other types of wire antennas, without the need for an antenna tuner.
    [ Hits: 2674 | Votes: 3 | Rating: 7.00 ]
Antennas : Dipole
  • VHF/UHF Wideband Portable Dipole - A portable dualband dipole robust and compact antenna usable for horizontal and vertical polarisation by ON6MU
    [ Hits: 2841 | Votes: 2 | Rating: 5.50 ]
  • Inverted V - Described is a simple inverted-V antenna which, when used with a balanced ATU, can be used on all the main Radio Amateur HF bands (80, 40, 20, 15 and 10m). The cental support is made in such a way that the wire can be coiled up for storage when the antenna is taken down.
    [ Hits: 3024 | Votes: 1 | Rating: 8.00 ]
Antennas : Multiband
  • Vipormutant antenna by ON6MU - A Versatile Innovative Portable Multi-band Tunable Antenna can work HF VHF and UHF ideal as portable or balcony antenna
    [ Hits: 2837 | Votes: 5 | Rating: 4.80 ]
Antennas : Quad
  • VHF/UHF Quad Antenna - Article by N6JSX on homebrewing quad antennas for VHF and UHF.
    [ Hits: 4070 | Votes: 3 | Rating: 6.00 ]
Antennas : Receiving Antennas : Rhombic Antennas : Tuners
  • A Portable Antenna Matching Unit - A small HF antenna tuner project for qrp operations. Includes circuit diagrams pictures and test results by GW4ALG
    [ Hits: 12804 | Votes: 4 | Rating: 5.50 ]
  • Icom AH-4 wide range antenna tuner - This document attempts to compensate for a rather sparse instruction manual by providing information on how to interface the AH-4 with any HF radio.
    [ Hits: 2920 | Votes: 5 | Rating: 3.60 ]
  • HF VHF mini antenna tuner - A small antenna tuner project that cover from 3 to 150 Mhz with a max power of 50 watts by ON6MU
    [ Hits: 3710 | Votes: 7 | Rating: 8.14 ]
Antennas : Vertical Antennas : W3DZZ
  • Making the W3DZZ Video - A video guide of how to make a high performance,low cost HF multiband antenna for the radio amateur and shortwave enthusiast. Fantastic performance and low cost. Video made by Mike (M0RRQ)
    [ Hits: 3439 | Votes: 8 | Rating: 5.50 ]
Contesting : Results
  • LYAC VHF Contest - The main purpose is support for LYAC contest - publishing of results, news for participants. Discussions about VHF contesting and amateur radio VHF are welcome as well.
    [ Hits: 168 | Votes: 1 | Rating: 1.00 ]
Ham Radio : Blogs : Europe
  • EA7HFG Javier - Amaterur radio blog from Cordoba Spain
    [ Hits: 136 | Votes: 1 | Rating: 10.00 ]
Ham Radio : Clubs : North America : USA : Arizona
  • W7GDY TriCity Amatuer Radio Association - Emergency communication is the cornerstone of this organization with the development of operating teams to provide volunteer backup emergency communications support to the cities of Goodyear, Avondale, Litchfield Park and surrounding areas
    [ Hits: 191 | Votes: 0 | Rating: 0.00 ]
Ham Radio : Clubs : North America : USA : Nevada
  • The Las Vegas Radio Amateur Club - The Las Vegas Radio Amateur Club operates the K7UGE repeaters on 146.94 and and 448.500. Repeater is located on top of the Las Vegas Hilton Hotel & Casino, the UHF repeater is located on top of the Tropicana Hotel & Casino.
    [ Hits: 309 | Votes: 1 | Rating: 10.00 ]
  • The Mountain Repeater Association - Formed about 30 years ago, in an effort to promote the growth of 220 MHz operation, further the readiness of the Amateur Radio Community to provide disaster emergency communications, and to promote experimentation with VHF communications.
    [ Hits: 234 | Votes: 1 | Rating: 10.00 ]
Ham Radio : Clubs : North America : USA : Washington Ham Radio : Clubs : South America
  • Crambr.org - CRAM - Clube de RadioAmadores de Americana cover d-star, repeaters and VHF UHF activities in Brazil.
    [ Hits: 421 | Votes: 1 | Rating: 1.00 ]
Operating Modes : MFSK
  • Olivia, the Magic Digital Mode - Olivia MFSK digital communications are becoming popular in amateur radio because Olivia is one of the most robust methods of text keyboarding, that can perform superbly for long distance communications. Olivia frequencies, format and software
    [ Hits: 1628 | Votes: 8 | Rating: 8.38 ]
Operating Modes : Packet Radio : Beginner's Guide
  • HF Packet Operations - Hints and guidelines for operating packet radio mainly for HF, but may apply to VHF too by ka1fsb
    [ Hits: 425 | Votes: 0 | Rating: 0.00 ]
Radio Equipment : VHF-UHF Handhelds Technical Reference : Amplifiers : HF Amplifiers
  • Amplifier for 15 and 17 meter band - The two linear amplifiers are ment for use with QRP SSB/CW/FM/AM transmitters on the amateur bands 15 and 17 meters can be powered from a 12 volt DC supply by ON6MU
    [ Hits: 1317 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Filters
  • 1.8-54 Mhz Low pass filter - An easy to make HF low pass filter form high power by k8cu
    [ Hits: 3199 | Votes: 2 | Rating: 2.00 ]
Technical Reference : Sound Card Radio Interfacing
  • ICOM Soundcard Interface - IC820H or other Icom Radios Soundcard interface for VHF EME use by DF9CY
    [ Hits: 1063 | Votes: 0 | Rating: 0.00 ]
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