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alan

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• Vertical antenna for 50 MHz - 5/8 vertical groundplane antenna for six meters band
  [ Hits: 1580 | Votes: 3 | Rating: 5 ]

• Design & Performance of a Choke Balun - Design & Performance of a Choke Balun and Balanced Transmission Line by G4FGQ
  [ Hits: 1282 | Votes: 3 | Rating: 4.33 ]
• Magnetic Long Wire UnUn 9:1 - An impedance transformer (9:1) to feed a high impedance long wire (~450 ohm), down to a 50 ohm unbalanced coaxial input.
  [ Hits: 1929 | Votes: 4 | Rating: 7 ]
• Tuner Baluns on Input - There is a common perception that placing a balun on the input of a tuner causes the balun to work better. The thought is the balun operates with a matched impedance and that reduces balun losses. It also is thought that moving the balun improves balance.
  [ Hits: 594 | Votes: 1 | Rating: 1 ]

• 1:4 Current Balun - This project is intended to aid in tuning a balanced antenna or feedline that has a high impedance 100-600 ohms
  [ Hits: 3414 | Votes: 5 | Rating: 8 ]

• Antenna current meter - How to measure antenna feed balanced lines currents
  [ Hits: 757 | Votes: 3 | Rating: 8.67 ]

• Fractal Antennas - Fractal Antennas by Philip Felber A literature study as a project for ECE 576
  [ Hits: 1592 | Votes: 3 | Rating: 5 ]

• Archimedean Spiral Antenna for RTLSDR - Dodgy plans to make Archimedean spiral antenna for RTLSDR software defined radio receiver. Made of two equal lengths of coaxial cable seems to be the easiest circularly polarized antenna to make that will cover a broad range of the rtlsdr dongles E4000 tuners
  [ Hits: 1033 | Votes: 2 | Rating: 10 ]

• Homebrew Antenna Tuner - A simple T-network that can match any unbalanced antenna system by AA5TB
  [ Hits: 4875 | Votes: 5 | Rating: 7.6 ]

• VHF UHF Dualband vertical antenna - Homebrew a dual band vertical antenna
  [ Hits: 1281 | Votes: 4 | Rating: 4 ]
• VHF 5/8wave vertical antennas - By Guy, de ON6MU, At VHF, both the 1/4-wavelength monopole and the 5/8-wavelength monopole antennas are widely used.
  [ Hits: 1937 | Votes: 4 | Rating: 5.5 ]

• Amateur Radio Free and Clear - Amateur radio group of fair and balanced operators based in Kentucky having so much fun that it has to be illegal.
  [ Hits: 405 | Votes: 6 | Rating: 6.83 ]

• New Zealand YL Radio Club - New Zealand Women Amateur Radio Operators, to promote and encourage interest in amateur radio amongst women.
  [ Hits: 299 | Votes: 0 | Rating: 0 ]

• Haredata Electronics - Haredata Electronics is your one stop shop for Power Supplies, Chargers, Battery Packs & Accessories. Power Supplies Chargers, Battery Packs , Power Supply Accessories , Haredata Electronics Limited,
  [ Hits: 376 | Votes: 2 | Rating: 9.5 ]

• ZL Map - New Zealand ham radio map
  [ Hits: 662 | Votes: 1 | Rating: 4 ]

• PSK31 The Easy Way - An illustrated and printable introduction to PSK 31 by by Alan J. Gibbs, VK6PG
  [ Hits: 914 | Votes: 1 | Rating: 10 ]

• Signals - Trio Datacom, Dolectek and Yaesu Vertex Standard cb and ham radio dealer in new zealand
  [ Hits: 645 | Votes: 0 | Rating: 0 ]

• Common mode current - Balanced and Unbalanced Systems
  [ Hits: 285 | Votes: 0 | Rating: 0 ]

• EMR Safety Compliance Calculator - This spreadsheet replicates ALL the tables and lookups in the FCC, ACMA and New Zealand EMR RF Safety compliance regulations.
  [ Hits: 556 | Votes: 6 | Rating: 6 ]

• R.F. Current Meter - This R.F. current meter was developed to assist in measuring line currents in balance feed lines as used in the All Band HF Antenna.
  [ Hits: 626 | Votes: 1 | Rating: 1 ]

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