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• Antennas for 160m - The best results work when you have an antenna with a large vertical component. It is difficult to get a horizontal antenna (dipole) high enough to be an effective antenna on 160. However, there are several easy things you can do with your present antenna to initially get on the best amateur radio band
  [ Hits: 1124 | Votes: 0 | Rating: 0 ]

• The 40 Meter Inverted V Antenna - This 40 meter Inverted V antenna was tested and tuned at a height of 35 feet and proved excellent results. The ends of the antenna are about 11 feet above the ground. Article and video available
  [ Hits: 1482 | Votes: 9 | Rating: 8.67 ]

• VHF UHF Fan Dipole Antenna - Author describes in this post a unique copper pipe fan dipole that he created and that provides fantastic results
  [ Hits: 1500 | Votes: 8 | Rating: 7.38 ]

• Common-mode chokes - Chart that present results of impedance measurements made on a variety of common-mode choke implementations across the frequency range 1MHz to 30MHz by G3TXQ
  [ Hits: 607 | Votes: 2 | Rating: 4 ]
• RF Chokes - A chart presenting the results of impedance measurements made on a variety of common-mode choke implementations across the frequency range 1MHz to 30MHz by G3TXQ
  [ Hits: 906 | Votes: 2 | Rating: 7.5 ]

• MagLoop 10-24 Mhz - A few pictures of an homebrew magnetic loop RTX antenna project, working from 30 to 12 meters with excellent results
  [ Hits: 698 | Votes: 4 | Rating: 6 ]

• 70cm Moxon Beam - A moxon antenna project for 70 cm band, test and results of this popular antenna model applies to UHF bands.
  [ Hits: 1733 | Votes: 9 | Rating: 6.34 ]

• 2 Meter 5 Element Quad - A five element quad antenna for 144 MHz DIY Project. This 2 Meter 5 Element Quad antenna was modeled using EZNEC, with a boom from a UHF TV antenna and CPVC pipe for spreaders. Constructed for 146MHz, it exhibits a gain of 10.7dB and an impedance of 75 ohms. Real-world results surpass the HT antenna, reaching over 20 repeaters up to 75 miles away. The design, costing around $10, employs simple tools for assembly.
  [ Hits: 1888 | Votes: 9 | Rating: 6.23 ]

• Quarter Waves and Velocity Factor - Coax Velocity Factor in Baluns, Does it Matter? Test results show coaxial cable velocity factor does not always enter into stub length calculations especially in the world of Baluns
  [ Hits: 208 | Votes: 0 | Rating: 0 ]

• Height & Gain on 40 Meters Wire Antennas - An comprehensive article on 40 meters antenna comparing vertical height to the resulting gain
  [ Hits: 783 | Votes: 2 | Rating: 6.5 ]

• Balloon Vertical Omni-Antennas - Experimenting vertical wire antennas for 40 and 20 meters supported by balloons resulting in excellent gain in RX and good overall performance against horizontal dipole
  [ Hits: 771 | Votes: 1 | Rating: 5 ]

• Windom Antenna - This article describes the characteristics of the Windom antenna and shows the results of several simulations made with MMANA-GAL, covering models optimized for the 20 m, 40 m and 80 m bands.
  [ Hits: 1348 | Votes: 5 | Rating: 2.4 ]

• CQ WW 160 Results - Final Results of the CQ world wide 160 meter contest including past editions
  [ Hits: 312 | Votes: 0 | Rating: 0 ]

• EDI Visualizer - Create an on-line QSO Map of your contacts submitting a simple EDI contest log file. The EDI file must contain locators, the app will create a nice map based on google maps engine. Map will be saved online and the resulting url can be easily shared on social networks.
  [ Hits: 1201 | Votes: 2 | Rating: 5.5 ]

• Have a Great Time with JT9 - JT9 is a amateur radio weak-signal digital mode can give little pistol stations big gun results, ARRL article by W4GAL
  [ Hits: 448 | Votes: 0 | Rating: 0 ]

• K6JRF - Mic Comparison - This Microphone comparison article summarizes the test results of two popular ham radio microphones the ElectroVoice RE27 and Heil PR781
  [ Hits: 509 | Votes: 0 | Rating: 0 ]

• Terminator for Android - Android app by VE3VN that show view of night, day and terminator around the globe. This gives a strong hint of which bands and compass directions to focus on for best results.
  [ Hits: 755 | Votes: 1 | Rating: 10 ]

• The HotPaw Morse Code Decoder - The HotPaw Morse Code Decoder decodes the tones of Morse Code characters from audio input, and transcribes the results into text. Commercial App for MacOS X. Price USD 19.99
  [ Hits: 916 | Votes: 0 | Rating: 0 ]

• UHF Connector Performances - A deep analysis of UHF connectors performance tests, including return Loss of UHF Connectors, Mismatch Loss of UHF Connectors, SWR of UHF Connectors
  [ Hits: 290 | Votes: 1 | Rating: 8 ]

• Ham Radio Beat Frequency Oscillator - A simple free running oscillator oscillating at the receiver\'s IF (intermediate frequency) beats with the incoming signals in either CW or SSB and the resultant audio frequency goes to the AF amplifier.
  [ Hits: 718 | Votes: 0 | Rating: 0 ]

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