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Simple Ham Radio Antennas--Amateur Radio Related Uses For Raspberry Pi [Slides]. Post #847

Amateur Radio Related Uses For Raspberry Pi [Slides] (https://dzone.com/articles/amateur-radio-related-uses-for-the-raspberry-pi-sl). Accessed on 26 July 2016, 21:35 hrs, UTC. Reporter:  Kevin Hooke (KK6DCT). Please click title link to read the full article and to view the slides. Comment: An excellent slide show presentation on the use of the Raspberry Pi microprocessor for amateur radio projects. This well-done slide program was presented to members of the River City Radio Communications Society this month by Keven Hooke (KK6DCT). The program consists of 31 slides which describe how you can integrate the Raspberry Pi microprocessor into various phases of your amateur radio operation. Most of the projects are simple, inexpensive, and fun to use. For the latest Amateur Radio news and information, please check out the blog sidebars.  These news feeds are updated daily. Opinions expressed in this blog are mine unless otherwise stated. Thanks for joining us today! Alo

Simple Ham Radio Antennas--More Magnetic Loop Antenna Work. Post #846

More Magnetic Loop Antenna Work (http://www.w2lj.blogspot.com/2016/07/more-magnetic-loop-antenna-work.html?m=1). Accessed on 26 July 2016, 03:10 hrs, UTC. Reporter:  Larry Makoski (W2LJ). Please click title link to read the full story. Comment: One of my favorite amateur radio websites is the QRP blog published by New Jersey ham, Larry Makoski (W2LJ).  He's always trying new things and isn't afraid to experiment with antennas, accessories, and rigs. In this post, Larry describes his progress in making a QRP magnetic loop antenna tuned by a "homebrewed" capacitor box of his own design.  Magnetic Loop antennas are excellent for space-restricted radio amateurs or for portable operations.  Tuning magnetic loop antennas can be tedious because of their narrow bandwidth. In years gone by, one could buy surplus Jennings air variable capacitors and be operational in no time.  Although these capacitors were often available, their cost discouraged many amateurs from

Simple Ham Radio Antennas--How to Build a 9:1 UnUn for Ham Radio Antenna. Post #845.

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If you're having trouble viewing this video, please insert this title link into your browser search box: https://www.youtube.com/watch?v=mfnvqQeDLoQ.  Long wire HF antennas are great for both portable and home use if you have a good ground radial/counterpoise system and use a balun to match the antenna impedance to the impedance of your HF transceiver.  In this video, "Tinker John" (W5CYF) shows us how to make a simple 9:1 UnUn (unbalanced to unbalanced) for long or random length wire antennas.  John uses a T-130-2 core for the UnUn. John advises using thicker wire on the toroid if you plan to run more than 20 watts.  This simple, inexpensive project should only take a few hours to make. For the latest Amateur Radio news and information, please check out the blog sidebars.  These news feeds are updated daily. Opinions expressed in this blog are mine unless otherwise stated. Thanks for joining us today! Aloha es 73 de Russ (KH6JRM).

Simple Ham Radio Antennas--Longwire Antennas for DXing. Post #844.

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If you're having trouble viewing this video, please insert this title link into your browser search box: https://www.youtube.com/watch?v=ftBthATNdcg. If you have some space and feel a bit adventuresome, check out this high performance DX antenna using a parafoil kite.  In this video, Stan Gibilisco (W1GV) explains the theory, design, construction, and use behind this somewhat unusual antenna. Stan used a parafoil kite-supported 4 wavelengths long wire antenna on 7 MHz to attain reception that measured S9 +30dB. With a suitable ground system and a wide range antenna transmatch (i.e. "tuner") and balun, you could transmit a strong, low-angle signal from 80 meters to 10 meters. This could be an interesting antenna for the annual ARRL Field Day. For the latest Amateur Radio news and information, please check out the blog sidebars.  These news feeds are updated daily. Opinions expressed in this blog are mine unless otherwise stated. Thanks for joining us today! Aloh

Simple Ham Radio Antennas--Zepp Antenna Theory. Post #843.

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If you're having difficulty in viewing this video, please insert this title link into your browser search box: https://www.youtube.com/watch?v=TwYSS335wZw. One of the classic multiband HF antennas you should try is the "Zepp" or "Zeppelin" antenna, which was once used on those huge German airships of the 1920s and 1930s.  In this video, Stan Gibilisco (W1GV) explains the theory, design, and construction of this antenna.  He also compares the "Zepp" to other half-wavelength antennas, such as the half-wave dipole. A good, basic introduction to an antenna that is still used today. For the latest Amateur Radio news and information, please check out the blog sidebars.  These news feeds are updated daily. Thanks for joining us today! Aloha es 73 de Russ (KH6JRM).