USA

USA

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• VHF/UHF Wideband Portable Dipole - A portable dualband dipole robust and compact antenna usable for horizontal and vertical polarisation by ON6MU
  [ Hits: 3252 | Votes: 3 | Rating: 7 ]

• G5RV antenna project by F5JTZ - Yet another G5RV antenna plan to build a G5RV Antenna for 80 to 10 meters usage
  [ Hits: 2249 | Votes: 3 | Rating: 10 ]

• Why Radials ? - Butternut article on radials usage on vertical and ground plane antennas
  [ Hits: 955 | Votes: 0 | Rating: 0 ]

• Multiband HF Vertfical Antenna - A vertical antenna that can cover HF bands using an UN UN and a fishing pole, usage of tuner is requested.
  [ Hits: 1692 | Votes: 1 | Rating: 10 ]

• W7ASC Center for Amateur Radio Learning - C.A.R.L. is the Center for Amateur Radio Learning located within the Arizona Science Center. Our goal is to expose the thousands of visitors who visit the Arizona Science Center each year to the hobby of amateur radio.
  [ Hits: 488 | Votes: 1 | Rating: 10 ]
• K7LHC London Bridge Amateur Radio Club - Lake Havasu City Arizona USA
  [ Hits: 740 | Votes: 3 | Rating: 9 ]
• HARC-AZ - Hualapai Amateur Radio Club - The Hualapai Amateur Radio Club is located in Kingman, Mohave County, Arizona, USA (DM25xf).
  [ Hits: 869 | Votes: 3 | Rating: 5.33 ]

• K8DAA Holland Amateur Radio Club - Holland, Mi USA
  [ Hits: 354 | Votes: 0 | Rating: 0 ]
• KC8BRS Four Flags Ham Radio Club - Niles, Michigan USA
  [ Hits: 337 | Votes: 1 | Rating: 10 ]

• W3SGJ - Beaver Valley Amateur Radio Association - The first and oldest amateur radio club in Beaver County PA USA
  [ Hits: 407 | Votes: 1 | Rating: 9 ]

• Rodeo City Radio Club - Ellensburg, Kittitas County, Washington, USA
  [ Hits: 375 | Votes: 0 | Rating: 0 ]

• XYtronic - Soldering and de-soldering professionals. Provide quality stations, irons, and rework systems
  [ Hits: 484 | Votes: 0 | Rating: 0 ]

• Understanding propagation numbers - Quick reference table on understanding A K SFI indexes and how can be translated in usable frequency opportunities
  [ Hits: 2749 | Votes: 4 | Rating: 10 ]

• 5 Amp power supply for portable usage - A 13,8v/5Amp 78H05 based power supply for portable use. In this example used to power up a Yaesu FT-817
  [ Hits: 7621 | Votes: 7 | Rating: 6 ]

• Cb Radio USA - Cb radio store online offer variety of Cobra Cb radios for sale for you to choose from.
  [ Hits: 1806 | Votes: 6 | Rating: 5.17 ]

• KB3IFH QSL Cards - QSL Printer shop, products include Photo QSL cards, Eyeball cards, and State QSL Cards, based in Hampstead, MD USA
  [ Hits: 611 | Votes: 0 | Rating: 0 ]

• USAPhotoMaps - Free Windows APRS Client with capability of downloading free aerial photo and topo map data.
  [ Hits: 1217 | Votes: 1 | Rating: 10 ]

• HxPI Morse Jabberwocky - A translation of Jabberwocky into Morse Code. The famous nonsense poem Jabberwocky by Lewis Carroll, from Alice Through the Looking Glass, has been translated into many languages. Here it is in Morse Code, as MP3 audio files that can be downloaded. The files are at different speeds (words per minute, wpm) to suit those at different stages of learning morse code.
  [ Hits: 835 | Votes: 2 | Rating: 4.5 ]

• Power Gride Tubes - Article on tubes and their usage in power amplifiers design. Explain failures of tube in RF power amplifiers, a common problem in the SB-220 SB-221, TL-922 and other amplifiers.
  [ Hits: 1002 | Votes: 2 | Rating: 6.5 ]

• Datasheet Archive - Search engine for electronic component datasheets and application notes.
  [ Hits: 674 | Votes: 4 | Rating: 7.5 ]

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