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Antennas
  • Crossed Field Antenna - The Crossed Field Antenna (CFA) is one of the applications of Correction of Maxwell's Equations which was used over 150 years ago which was proved these days that the Magnetic Field Source is only the Displacement Current not the Conduction Current . These Corrections was made by an Egyptian Doctor Engineer Fathi Kabbary , who reached the New Correct Theory which shows that the height and efficiency of the antenna doesn't depend on the wavelength
    [ Hits: 2010 | Votes: 4 | Rating: 1.00 ]
Antennas : 10M
  • 10 Meters EH Antenna  pop - PDF file with plans to build an eh antenna for 10 meters band, by lloyd butler VK5BR
    [ Hits: 30188 | Votes: 33 | Rating: 5.24 ]
Antennas : 160M Antennas : 2M
  • 7 Elements YAGI for 144 Mhz  updated  pop - The QM7 antenna is a simple 7 elements Yagi with 3.7 m boom length for the lower 144 MHz SSB/MGM band, in PDF Format
    [ Hits: 36889 | Votes: 31 | Rating: 5.66 ]
  • QM5 Yagi for 2 meters band - The QM5 antenna is a simple 5 elements Yagi with 1.88 m boom length for the lower 144 MHz SSB/MGM band, I used it mainly for Sporadic-E and MS contacts. It exhibits a forward gain of 9.17 dBd; i.e. 11.3 dB forward gain over the isotropic radiator, while the F/R is about 11.5 dB. Elements
    [ Hits: 5976 | Votes: 4 | Rating: 5.25 ]
  • A turnstile antenna for 2-meter ARDF  updated - Antenna design for use with hidden transmitters on international-rules ARDF events
    [ Hits: 15812 | Votes: 19 | Rating: 5.52 ]
Antennas : EH
  • On the EH antenna - EH antenna iformations in this PDF file from antennex web site, By John S. (Jack) Belrose, VE2CV
    [ Hits: 1902 | Votes: 0 | Rating: 0.00 ]
  • Eh antenna notes by IK5IIR - Original eh antenna building reccomendations by IK5IIR Stefano.
    [ Hits: 1755 | Votes: 7 | Rating: 5.71 ]
Antennas : Feed Lines Antennas : Feed Lines : Choke
  • Choke Balun Designs - In this designs G8ODE explains different methods to builds a choke balun
    [ Hits: 2312 | Votes: 3 | Rating: 3.33 ]
Antennas : J-Pole
  • HF J-Pole antenna - A Simple Nondirectional Antenna for Ten Meters QST February 1950, Easy to build J-Pole antenna for restricted space.
    [ Hits: 5864 | Votes: 2 | Rating: 4.00 ]
Antennas : Mobile
  • A $20 HF mobile antenna - A few hours of fun with PVC and wire and you’ve got yourself a respectable road radiator. The antenna consists of little more than some PVC pipe topped by a RadioShack replacement whip antenna and a couple of coils made from a small roll of #14 house wire.
    [ Hits: 8888 | Votes: 5 | Rating: 6.80 ]
Antennas : Moxon
  • W6NL 40m Moxon Yagi - Designed and built by W6NL looks like a loaded yagi this 2 element moxon antenna offer 6dbi
    [ Hits: 3585 | Votes: 8 | Rating: 4.13 ]
Antennas : Multiband Antennas : Stealth
  • Antennas and Grounds for apartments - Suggestions on finding RF ground when you live in an apartment and you want to setup an antenna
    [ Hits: 19890 | Votes: 9 | Rating: 4.44 ]
Antennas : Tuners
  • Do You Need an Antenna Tuner - Maybe yes, maybe no. It all depends on the type of antenna and feed line you're using. QST Article in pdf format
    [ Hits: 19727 | Votes: 10 | Rating: 5.30 ]
Antennas : Vertical
  • Add 60 meters to butternut vertical antenna - The Butternut vertical is a great antenna in that it covers all HF bands from 160- though 10-meters (or 160-30 meters for the HF-2V) except 60-meters. This article describes three methods to add 60 meters to your Butternut vertical without losing any other bands.
    [ Hits: 2764 | Votes: 3 | Rating: 1.67 ]
Antennas : Windom
  • New Carolina windom antenna  pop - PDF file by QRP Expressions by By N. T. Len Carlson, K4IWL
    [ Hits: 40745 | Votes: 56 | Rating: 7.79 ]
Antennas : Wire
  • Transmitting Antennas For HF Broadcasting - This paper discusses a number of common used HF transmitting antenna systems and corresponding reference antenna codes. The latter was developed in close consultation with regional coordination groups ABU-HFC, HFCC-ABSU.
    [ Hits: 2147 | Votes: 2 | Rating: 5.50 ]
Antennas : Yagi
  • RDF2 two element, close spaced Yagi antenna - This antenna is an adaptation of the RDF2 two element, close spaced Yagi antenna described in the May, 1996 issue of 73 Amateur Radio Today Magazine.
    [ Hits: 8517 | Votes: 7 | Rating: 4.85 ]
Operating Modes : Mobile : Bicycle
  • Bicycle-Mobile antenna - WA5FRF VHF mobile antenna for bicycle installation
    [ Hits: 4990 | Votes: 1 | Rating: 9.00 ]
Operating Modes : Radio Direction Finding
  • A low power 3.5MHz ARDF transmitter - This low power transmitter is developed for ARDF exercising purposes but of course can be used as super QRP transmitter either. With 1 or 2 meter wire as antenna and a ARDF receiver with ferrite-rod antenna the range is about 100m but with better antennas and a 'real' receiver the range is probably much larger.
    [ Hits: 1640 | Votes: 3 | Rating: 5.33 ]
Publications : Manuals
  • Butternut manuals - Manuals of butternut antennas
    [ Hits: 897 | Votes: 2 | Rating: 8.50 ]
  • Isotron antenna manulas - From this page you can download the following manuals, in Adobe Acrobat format .pdf, 40 Meter Isotron, 80 Meter Isotron
    [ Hits: 3269 | Votes: 5 | Rating: 3.20 ]
Technical Reference : Antenna Rotator
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