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Antennas : Dipole

  • T2FD, The Forgotten Antenna - The terminated tilted, folded dipole T2FD is a little known antenna that performs excellently. Compact in size compared to a half-wave dipole the T2FD provides signal gain, wide frequency coverage, and exceptionally low noise characteristics.
    [ Hits: 4884 | Votes: 3 | Rating: 8.33 ]
Antennas : Longwave
  • Notes on Designing LF-MF antennas - A free book on designign LF MF antennas. The six chapters in the body of the book are limited to basic information which, combined with a little modeling or simple calculations, can be applied directly using graphs for special problems like inductor design.
    [ Hits: 266 | Votes: 2 | Rating: 9.5 ]
Antennas : Mobile
  • HF mobile antenna  pop - Build your mobile antenna which outperforms Hustler by 10db and ATAS-100 by 18db. From 80 to 10m.
    [ Hits: 36243 | Votes: 52 | Rating: 6.87 ]
Antennas : OCF
  • OCF Dipole - This is a popular antenna design as the performance is very good across the HF bands and requires little or no tuning. It is a dipole fed off center with a 4:1 current balun at the offset feedpoint. The antenna shown covers 80, 40, 20 and 10 meters with 15 meters and WARC bands
    [ Hits: 2558 | Votes: 7 | Rating: 9.43 ]
  • Homebrew an OCF Off-Center Fed Dipole Antenna - This type of antenna is a popular antenna design as the performance is very good across the HF bands and requires little or no tuning. It’s a dipole fed off center with a 4:1 balun at the offset feed point. The antenna shown covers 80, 40, 20 and 10 meters. The formula can also be used to adjust the overall length to cover more or fewer bands and the resulting overall length. 160-10m, 80-10m or 40-10 meters depending on your available space. Other bands will require a tuner.
    [ Hits: 194 | Votes: 3 | Rating: 6.67 ]
CB Radio : References
  • Power House's CB Page - A little information about me and my equipment, loads of useful links to just about everything CB radio related. Features a tune-up section for just about every PLL controled radio out there. Drop by, you won't be disapointed!
    [ Hits: 8909 | Votes: 265 | Rating: 7.73 ]
DX Resources : Ham Radio Awards : Castle Awards
  • Russian Castles award - Issued to any licensed radio-amateur or SWL who submits proof of radio contact with stations working form fortresses
    [ Hits: 283 | Votes: 1 | Rating: 10 ]
Ham Radio : Clubs : North America : USA : Indiana
  • Whitley County Amateur Radio Groups (WCARG) - This site was created to allow the listed organizations, their members and others in the area to share information about amateur radio in and around Whitley County, Indiana.
    [ Hits: 301 | Votes: 0 | Rating: 0 ]
Operating Modes : Longwave
  • Antenna Noise and Signal Cancelling at LF - The fact that the phasing between a wanted signal and an unwanted signal can be different on different antennas is put to advantage. With this condition, the unwanted signal can be cancelled out by controlling amplitude and phase. The heart of the system is some form of phase control circuitry.
    [ Hits: 627 | Votes: 0 | Rating: 0 ]
Operating Modes : Mobile Propagation : Sporadic E
  • Sporadic E Explained - Sporadic E is a form of propagation that can arise with little warning, and enable radio frequencies of 150 MHz and more to travel over distances of a thousand kilometres and more.
    [ Hits: 215 | Votes: 0 | Rating: 0 ]
Software : Linux : Linux Distributions
  • Skywave Linux - Linux for shortwave and amateur radio monitoring. Supports popular SDR hardware and online streaming from KiwiSDR, WebSDR, and Spyserver sites. Articles about using Linux with your SDR devices.Skywave Linux, an innovative operating system, leverages cutting-edge technology for seamless access to radio signals globally. Ideal for regions with limited internet access, it effortlessly connects to a network of SDR servers, offering high-performance SDR operation without the need for extensive hardware. With pre-installed and configured SDR software, Skywave Linux simplifies signal discovery and operation for all users.
    [ Hits: 263 | Votes: 0 | Rating: 0 ]
Technical Reference : Filters
  • PC Board Filters - Offer performance comparable to tin-box filters, and except for being bigger, stack up pretty well with those expensive little helical jobs. You just have to be able to make your own PC boards.
    [ Hits: 379 | Votes: 0 | Rating: 0 ]
Technical Reference : Radio Frequency Interference
  • VK5BR : Intermodulation - Intermodulation Performance and Measurement of Intermodulation Components by Lloyd Butler VK5BR First published in "Amateur Radio" August 1997
    [ Hits: 599 | Votes: 1 | Rating: 10 ]
Technical Reference : Test Equipment
  • A CAT-5 Tester for Ham Radio - A Neat Little Tool For The Bench. The basic information needed when testing a multi-conductor cable like CAT-5 is that each wire in the 4 pair cable goes to the correct pin in the RJ-45 plug and that all crimps are solid.
    [ Hits: 331 | Votes: 0 | Rating: 0 ]

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