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• Antenna wire catenary calculator - This is a simple calculator for solving the antenna wire catenary between to end points given the design wind speed, mass per unit length of the wire, wire diameter and Gross Breaking Strength of the wire.
  [ Hits: 2898 | Votes: 8 | Rating: 2.75 ]

• K7MEM - Inverted V Antenna Design - Inverted V antennas is a dipole with the center raised on a mast and the endpoints near ground. Calculate dimensions online.
  [ Hits: 4439 | Votes: 13 | Rating: 6.61 ]

• End fed-Halfe-wave antenna - This type of antenna has same performance as a dipole, but requires only one single mounting point
  [ Hits: 7819 | Votes: 8 | Rating: 8.26 ]

• Antenna Impedance measurement - When experimenting on an antenna it's often important to determine its feedpoint impedance at various frequencies across the operating band. It's easy enough to measure SWR, but sometimes we need to know more detail than this
  [ Hits: 1426 | Votes: 6 | Rating: 2.67 ]

• Some plain facts about multiband vertical antennas - There is considerable confusion as to what exactly a multiband vertical antenna is. The confusion concerns the method of feed, how much mismatch one can expect, how many radials are required, how the particular antenna is built for multiband use, plus some other points.
  [ Hits: 1910 | Votes: 1 | Rating: 7 ]

• Another way to look at vertical antennas - What iss the difference between a dipole and a vertical? Maybe not as much as you think. Come along and try another point of view.
  [ Hits: 4048 | Votes: 0 | Rating: 0 ]
• Sensitivity of Multi Turn Receiving Loops - Magnetism is manifested as a 'field of vectors', that is, any point in the magnetic field has not only a magnitude, but a direction in space. The four Maxwell equations describe how electric and magnetic vector fields behave and interact.
  [ Hits: 353 | Votes: 0 | Rating: 0 ]

• Getting started in contest - A PowerPoint presentation by Bruce Draper, AA5B on how to get started in contesting, no matter if you are a big gun or a little pistol
  [ Hits: 956 | Votes: 1 | Rating: 1 ]

• The Guide of Japanese IOTA Points - Introducing Japanese IOTA points and islands to foreign amateurs.
  [ Hits: 559 | Votes: 2 | Rating: 8 ]

• The Nechako Radio Club - The Nechako Radio Club was formed in the summer of '93 to provide a common meeting point for the local area amateur radio operators.
  [ Hits: 274 | Votes: 0 | Rating: 0 ]

• SPARC - Official site of the shore point amateur radio club s.p.a.r.c. west haven, ct 06516 ham radio club
  [ Hits: 337 | Votes: 1 | Rating: 10 ]

• Shore Points Amateur Radio Club - Our Club Repeater System serves the Atlantic City Area on three Amatuer Bands
  [ Hits: 781 | Votes: 5 | Rating: 1 ]
• Southern Counties Amateur Radio Association - SCARA is active in various events throughout the year. Helping as a public service with communications at various events has been a strong point for our club
  [ Hits: 1140 | Votes: 84 | Rating: 8.79 ]

• D-Star presentation and sounds - A powerpoint presentation of the D-STAR operating mode by K7VE includes d-star sound samples
  [ Hits: 2173 | Votes: 5 | Rating: 2.4 ]

• Point Electronics - Radio Communication Equipment store in Wien Austria
  [ Hits: 997 | Votes: 1 | Rating: 8 ]

• KNLS English Service - KNLS English Service, this Is Alaska Calling! World Christian Broadcasting, Station KNLS, Anchor Point, AK USA
  [ Hits: 527 | Votes: 3 | Rating: 7 ]

• NBEMS - The Narrow Band Emergency Messaging System (NBEMS) for Windows is a suite of software programs designed for point-to-point, fast, error-free, emergency messaging up to or over 100 miles distant, and takes up a very minimum of frequency space on the ham bands, leaving more space for other ham activites.
  [ Hits: 1308 | Votes: 1 | Rating: 10 ]

• Beam DX - BEAM_DX is a free windows software for radioamateurs or radio listeners usage. It allows to point a directionnal antenna towards an azimuth, a locator, an international prefix or any other geographical position on earth predefined by its latitude and its longitude
  [ Hits: 2927 | Votes: 4 | Rating: 5 ]

• Satellite Finder - Satellite Finder is a way to accurately point satellite dishes at communications satellites in geostationary orbit.
  [ Hits: 3181 | Votes: 10 | Rating: 6.21 ]

• Vacuum tube Basics - Here's a tale of early '70s vacuum tubes, mainly from the viewpoint of amateur radio.
  [ Hits: 844 | Votes: 1 | Rating: 10 ]

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