old radio

old radio

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• The Cobra Antenna - A folded wire antenna for 160 meters as appeared on 73 amateur radio magazine june 1997
  [ Hits: 2138 | Votes: 4 | Rating: 5.75 ]

• 6 Meter Quad Turnstile Antenna - A quad turnstile consists of two cubical quad loops oriented in a diamond configuration and angled 90 degrees apart from one another with both diamonds sharing the same top and bottom points
  [ Hits: 369 | Votes: 1 | Rating: 10 ]

• Folded dipole antennas: terminated vs un-terminated - As the name suggests, it is simply a dipole with the tips folded towards each other. In this case, a full-wave dipole. The span of a standard folded dipole is aprox 0,5 lambda. In this article the author investigate on differences between un-terminated vs terminated folded dipole antennas.
  [ Hits: 494 | Votes: 9 | Rating: 6.78 ]

• End Fed Half-Wave Antennas - An interesting article on end fed half-wave wire antennas with a couple of original experiments. Author illustrate the role of the QRP matchbox, and a 40/20 meter antenna with a center stub making it a large bandwidth antenna for 40 and 20. Includes also an 80/40 end fed with the typical coil to make it available on 80 merts band.
  [ Hits: 288 | Votes: 2 | Rating: 10 ]

• QRP Link Dipole Antenna - Dipole antennas are some of the simplest antennas to build in addition to being very efficient and solid performers. I wanted to make a simple dipole antenna for QRP portable operation that could be used on multiple bands.
  [ Hits: 283 | Votes: 2 | Rating: 7.5 ]

• 3 Foot Box Loop Antenna - These antennas are larger versions of the small loop antennas that were part of the cardboard back panel of older AC/DC five tube AM radios. Loop antennas of this type were popular in the very early days of radio. They are still useful today for long distance reception of AM radio stations
  [ Hits: 385 | Votes: 1 | Rating: 2 ]

• Home Brew Fold Over Tower - A Tower Project at WOIVJ. A pictorial story of the erection of a 40 foot, self-supporting, fold-over tower.
  [ Hits: 368 | Votes: 0 | Rating: 0 ]

• How to Find Old Amateur Radio Call Signs - Many times, persons doing research about their ancestors know that a relative was a ham radio operator, and they are interested in learning the call sign held by that person. Depending on the year when the person was licensed, this can sometimes be a very difficult process.
  [ Hits: 360 | Votes: 2 | Rating: 4.5 ]
• Old Amateur Radio Call Books Archive - If you need to look for an old amateur radio call sign, you can have a look into the archive.org amateur radio callbooks archive. It contains over 100 copies of very old printed callbooks.
  [ Hits: 454 | Votes: 2 | Rating: 10 ]

• 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 ]
• QSLs from early Amateur Radio In The Canadian Arctic - A collection of QSL cards from and old operator, Art J. Cook, VE4KZ, who lived in Calgary Alberta, that contained some from the far north of Canada.
  [ Hits: 139 | Votes: 0 | Rating: 0 ]

• W7SP Utah Amateur Radio Club - Our club is the oldest and largest amateur radio club in the state of Utah. It holds the call W7SP, a memorial call for Leonard (Zim) Zimmerman, early UARC member and radio pioneer
  [ Hits: 200 | Votes: 0 | Rating: 0 ]
• Davis County Amateur Radio Club - The Davis County Amateur Radio Club (DCARC) is an organized, incorporated group of individuals with an interest in Radio Communications. Most of our members live in Davis County, Utah and hold Amateur Radio Licenses.
  [ Hits: 212 | Votes: 0 | Rating: 0 ]

• Getting Started with HSMM-Mesh - A nice article hosted on amateurradio.com on how to get started with HSMM-Mesh, the High Speed Multimedia-Mesh, from selecting a router to publishing applications
  [ Hits: 353 | Votes: 1 | Rating: 10 ]

• QRP Portable Station Winter Configuration - An article describing equipment needed to make portable operations evenin winter cold times. The article is completed by a nice video describing not only the radio setup but even the tent and power supply equipment
  [ Hits: 414 | Votes: 1 | Rating: 8 ]

• 100 Watt RF Power Amplifier for 2 GHz - Modification to an old cellular phone base station modules, with a fairly reduced output power (10 watts or so), the stock power amplifier modules will cover the 2.3 GHz and 2.4 GHz amateur radio bands.
  [ Hits: 162 | Votes: 0 | Rating: 0 ]

• Mini Satellite-Antenna Rotator Mk1 - This project is a portable device used to automatically point a directional antenna towards an orbiting satellite. It takes all the effort out of little kids holding the antenna and figuring out where to point it. It allows students to talk through Amateur Radio satellites or download weather satellite images.
  [ Hits: 551 | Votes: 0 | Rating: 0 ]

• How to perfectly clean wires in minutes - Here is an old ham radio operators trick for cleaning wires for soldering that are old and corroded. It is hard to find this technique printed anywhere!
  [ Hits: 1343 | Votes: 5 | Rating: 7.8 ]

• Ham Radio EMCOMM Go Kit - An article about building home made Go Kits also using Tac-Comm tactical radio carriers
  [ Hits: 260 | Votes: 0 | Rating: 0 ]

• Homebrew Spectrum Analyzer - Project for DXers and experimenters alike. An old article publishes by 73 Amateur Radio magazine in PDF format, where all the components required to build your own HF spectrum analyzer may be found in a well-stocked junk box.
  [ Hits: 777 | Votes: 0 | Rating: 0 ]

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