radio electronics

radio electronics

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• Antenna feed impedance - Article on antenna feed impedance and the importance of matching RF andtennas to feeders, including notes on Radiation resistance, loss resistance, and efficiency are also detailed.
  [ Hits: 430 | Votes: 1 | Rating: 10 ]

• Ham Radio Contests and Contesting - An overview or summary of amateur radio / ham radio contests, contesting and a contest calendar of some of the more popular contests.
  [ Hits: 210 | Votes: 2 | Rating: 3.5 ]

• Vintage QSL Gallery - Check out these vintage QSL cards from the 20th Century in this gallery of old QSL cards.
  [ Hits: 254 | Votes: 1 | Rating: 10 ]

• radio.cc - Stefan's Radio Blog - A web site with many articles on ham radio homebrewing and electronics by HB9TWS
  [ Hits: 234 | Votes: 1 | Rating: 10 ]
• LB3HC's hightech blog - LB3HC's hightech blog - Amateur radio, RF design, electronics, uC, software, Arduino, AVR, Antennas
  [ Hits: 186 | Votes: 0 | Rating: 0 ]

• ORARC - The Oxley Region Amateur Radio Club, ORARC provides the encouragement for those interested in the scientific development of radio communications and associated electronics.
  [ Hits: 220 | Votes: 0 | Rating: 0 ]

• Scouts Australia - SRESU - Pacific - Scout Radio & Electronics Service Unit
  [ Hits: 142 | Votes: 0 | Rating: 0 ]

• Morse Key History - An overview of the development of the Morse key for sending the Morse Code, from the first camelback keys, through straight keys and sideswiper keys to the semi automatic keyers including the Vibroplex to the modern electronic keyer.
  [ Hits: 196 | Votes: 0 | Rating: 0 ]
• Spark Gap Transmitter - The details of the spark gap transmitter and its history: how it was invented, developed and used.
  [ Hits: 385 | Votes: 1 | Rating: 10 ]

• NVIS Propagation - Near Vertical Incidence Skywave propagation is a form of radio wave propagation used on the MF and HF bands to provide radio communications and broadcasting coverage over short distances, especially where the terrain contains obstacles.
  [ Hits: 446 | Votes: 1 | Rating: 10 ]

• What is Radio Propagation - RF propagation - Discover the key facts about what radio propagation is, the different types available and how they affect different frequencies.
  [ Hits: 198 | Votes: 1 | Rating: 10 ]
• Radio Signal Path Loss - Article about the essentials of radio signal path loss, its causes and prediction, and its use in radio coverage and wireless survey tools
  [ Hits: 188 | Votes: 0 | Rating: 0 ]

• W5GRG.NET The Finest in Used Ham Gear - Amateur Radio Amateur Radio Manuals & Books Computer Books & Programs Computer Hardware Rare & Hard to Find Books amateur radio,electronics ,electronis parts,tubes, amplifiers,towners, beam antennas and more
  [ Hits: 258 | Votes: 0 | Rating: 0 ]
• Delta Electronics - Delta Electronics, Inc. NY USA, family owned and operated selling all varieties of consumer electronics including 10 meter amateur radios, antennas, accessories, microphones, cw transmitters, coax cables and more
  [ Hits: 326 | Votes: 0 | Rating: 0 ]

• RF filter basics tutorial - an overview, introduction or tutorial about the basics of electronics filters including the types of filter and the various filter design considerations and parameters
  [ Hits: 312 | Votes: 0 | Rating: 0 ]

• GNU Radio on Raspberry Pi 2 - Taking the Raspberry Pi 2 for a Test Drive with GNU Radio. Installing GNU Radio and receiving aircraft radar with a USB TV tuner
  [ Hits: 723 | Votes: 0 | Rating: 0 ]

• Superheterodyne Radio Receiver - Key details about the superhet or superheterodyne radio reeiver: basic overview; how it works; applications; design notes, all you need to know.
  [ Hits: 326 | Votes: 0 | Rating: 0 ]

• Crystal Radio Circuits - Collection of several Crystal Radio receiver circuits with schematics diagrams and pictures
  [ Hits: 637 | Votes: 1 | Rating: 10 ]

• Dip Meter - Grid Dip Oscillator GDO - All the essentials about the Dip Meter or Grid Dip Oscillator used for many RF measurements including detecting resonance, locating RF emissions, and making many RF measurements.
  [ Hits: 382 | Votes: 0 | Rating: 0 ]

• What is a Vacuum Tube - Read all the key details about Vacuum Tubes or Thermionic Valves that provided the foundations for today's electronics technology.
  [ Hits: 281 | Votes: 2 | Rating: 10 ]

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