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• 40-80 Half-Extended Double Zepp Antenna - A dual-bander for 80M and 40m. An Extended Double Zepp (EDZ) is a 5/4 wavelength center-fed dipole. This article will introduce the Half-Extended Double Zepp (HEDZ) which has characteristics that a lot of amateur radio operators should find quite interesting
  [ Hits: 11398 | Votes: 9 | Rating: 4.44 ]

• Balun measuements - Why can't you find the specifications for the baluns on the market? The only specifications you'll see are the ratio, the power rating and a bandwidth that is more hoped for than reality.
  [ Hits: 2631 | Votes: 3 | Rating: 4 ]

• Ultimate Portable HF Vertical Antenna - A light and compact antenna that is easy to build, and easy to find parts for. Band coverage is 60 through 10 meters.
  [ Hits: 4371 | Votes: 3 | Rating: 8.67 ]

• G/T Simulations - by VE7BQH - Here you will find information on how antennas behave when stacked G/T is an important figure-of-merit for the antenna's overall receive performance, because it balances forward gain (G) against received thermal noise (T).
  [ Hits: 849 | Votes: 8 | Rating: 7.87 ]

• Homebrew your own inductors  ^pop - Cannot find the inductors you need for an antenna, a tuner or amplifier ? Build your own it is easy!
  [ Hits: 28522 | Votes: 21 | Rating: 6.95 ]

• Installing Wire Antennas - Before selecting an antenna system, you must first find a place to put it. A selection of techniques to setup antennas upon trees using pulleys or other tools
  [ Hits: 2154 | Votes: 1 | Rating: 10 ]

• eHam QSL manager Finder - An online database of QSL managers at eHam maintained by K4WA
  [ Hits: 603 | Votes: 0 | Rating: 0 ]

• National RF, Inc. - National rf provides consulting engineer services, and manufactures direction finding antennas, test equipment, communications receiving equipment and adjuncts, satellite antennas, voice amplification and audio equipment.
  [ Hits: 792 | Votes: 0 | Rating: 0 ]

• Ham Radio communications can be fun ! - Ham radio activities, from satellite operations, eme communications, dxing and contesting, qsling and direction findings, are just some of ham radio exciting activities
  [ Hits: 661 | Votes: 0 | Rating: 0 ]

• javAPRS Findu - Findu lookup interface, by station, position and prefix, Wap interface is availbale
  [ Hits: 359 | Votes: 2 | Rating: 5.5 ]

• F5VLB amateur radio astronomy station - F5VLB and EA4EOZ have designed a small but powerful system using satfinder and standard LNB to make radioastronomy. A step by step descritpion for the novice about radioastronomy, VLB and listening to echo of meteorite.
  [ Hits: 1620 | Votes: 4 | Rating: 10 ]

• Thunt.org : transmitter hunting - Amateur radio direction finding, transmitter hunting web site from San Francisco. Triangulating a radio signal direction and plotting its bearing on a map. Hunters use doppler systems for tracking hidden transmitters anywhere in the san francisco bay area, fremont california
  [ Hits: 938 | Votes: 2 | Rating: 7.5 ]
• Far circuits - Direction finding projects, useful tools for t-hunting operations
  [ Hits: 1319 | Votes: 1 | Rating: 10 ]

• Transmitter hunting, in San Francisco - Amateur radio direction finding, transmitter hunting. triangulating a radio signal direction and plotting its bearing on a map. hunters use doppler systems for tracking hidden transmitters
  [ Hits: 497 | Votes: 0 | Rating: 0 ]

• IF-MOD for Yaesu FT-1000MP - In this page you can find some pics of the mods that you can make to the FT-1000MP/Mark V
  [ Hits: 1892 | Votes: 2 | Rating: 8.5 ]

• Grandicelli - Hf-vhf-uhf-shf-digital-monitoring-site,wavecom Decoder and tools, winradio and DRM decoders, WD3000 Direction Finding System , radioraft software. PFSL3000 Integrated HF-VHF-UHF signal monitorin
  [ Hits: 831 | Votes: 0 | Rating: 0 ]

• Win APRS - Automatic Position Reporting System windows program, allow monitoring of real time geographical information such as the position of vehicles, the status of weather, radio direction finding and more.
  [ Hits: 21393 | Votes: 26 | Rating: 5.38 ]

• PreFind - A Free Prefix, DXCC and Locator program for Windows
  [ Hits: 1061 | Votes: 1 | Rating: 10 ]

• DigChip IC database - Provider of electronic components documentation. Offer a reliable tool to find semiconductors components technical information like parts, datasheets, cross reference, obsolete and new circuits.
  [ Hits: 614 | Votes: 6 | Rating: 4.17 ]

• FT-1000MP interface - YAESU FT-1000/MP/MARK V (filed) interface, this one of numerous RTX sound blaster interfaces you can find on the internet, but this one include: FSK KEYING to use with the RTTY port, DVS-2 to use the interface in AFSK mode, this include all digital modes + voice keyer, CW KEYING
  [ Hits: 6890 | Votes: 1 | Rating: 10 ]

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