hf radio

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Search Results for "hf radio"

665 links - and 8 categories

Antennas : Baluns : 1 to 1 Balun
  • Simple HF Baluns for 50/75 ohm coax - Show diagrams, winding methods and tables of some 1:1 and 4:1 baluns for 1.8 - 30 MHz suitable for use up to 200W (400W peak) on systems using 50 or 75 ohm coaxial cable input where SWR should not exceed 1.6:1.
    [ Hits: 12857 | Votes: 18 | Rating: 4.00 ]
Antennas : Dipole
  • VHF/UHF Wideband Portable Dipole - A portable dualband dipole robust and compact antenna usable for horizontal and vertical polarisation by ON6MU
    [ Hits: 3049 | Votes: 2 | Rating: 5.50 ]
Antennas : J-Pole 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: 3177 | Votes: 5 | Rating: 4.80 ]
Antennas : Quad
  • VHF/UHF Quad Antenna - Article by N6JSX on homebrewing quad antennas for VHF and UHF.
    [ Hits: 4277 | Votes: 4 | Rating: 5.25 ]
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: 13867 | Votes: 5 | Rating: 5.40 ]
  • 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: 3008 | 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: 4012 | Votes: 9 | Rating: 7.44 ]
Antennas : Vertical 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: 186 | Votes: 1 | Rating: 1.00 ]
Ham Radio : Clubs : South America
  • Crambr.org - CRAM - Clube de RadioAmadores de Americana cover d-star, repeaters and VHF UHF activities in Brazil.
    [ Hits: 466 | 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: 1745 | 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: 479 | Votes: 0 | Rating: 0.00 ]
Operating Modes : VHF UHF 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: 1441 | Votes: 0 | Rating: 0.00 ]
Technical Reference : Sound Card Radio Interfacing
  • ICOM Soundcard Interface - IC820H or other Icom Radios Soundcard interface for VHF EME use by DF9CY
    [ Hits: 1142 | Votes: 0 | Rating: 0.00 ]
Technical Reference : TVI Filters
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