Posts

Portable Ham Radio Antenna. Post #1142.

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If you can't view this video, please insert this title link into your browser search box: https://www.youtube.com/watch?v=MsrgGy_JhpY. Here's another simple multiband HF portable antenna using common materials found at your nearest hardware store or home improvement outlet.  The antenna support is a common telescoping painter's pole.  Just add a dipole for each band of interest, separate each antenna by a few inches, hook up a convenient length of 50 ohm coaxial cable, add a choke balun and an antenna "tuner" if desired, and you're ready to go.  An excellent emergency and portable antenna for field operations. For the latest Amateur Radio news and information, please visit these websites: http://www.HawaiiARRL.info. https://oahuarrlnews.wordpress.com. https://bigislandarrlnews.wordpress.com. http://www.kh6jrm.info (breaking news for radio amateurs). http://www.arrl.org. Other sites of interest: http://hawaiisciencedigest.com (science and tec

W4EDF Portable Dipole Antenna Center Support. Post #1141

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If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=Z-cUNs274rU. Here's a little item from W4EDF that could make erecting that portable or Field Day antenna a bit easier--a sturdy, easy to use center support for your dipole.  In this video, Ed (W4EDF) takes you step-by-step through the design and construction phases of the original Field Expedient dipole antenna platform introduced by KF7ETX.  A very nice addition to your portable station equipment. For the latest Amateur Radio news and information, please visit these websites: http://www.HawaiiARRL.info. https://oahuarrlnews.wordpress.com. https://bigislandarrlnews.wordpress.com. http://www.kh6jrm.info (breaking news for radio amateurs). http://www.arrl.org. Other sites of interest: http://hawaiisciencedigest.com (science and technology news for radio amateurs). https://hawaiiintelligencedigest.com (trends in geopolitical intelligence and

Compact Multi-band Field Day Antenna. Post #1140.

Compact Multi-band Field Day Antenna (http://www.nc4fb.org/wordpress/compact-multi-band-field-day-antenna-80-10-meters/) Accessed on 23 May 2017, 20:45 hrs, UTC. Author:  NC4FB. Please click link to read the full article. Comment: How about a new and different HF antenna for the 2017 ARRL Field Day on 24-25 June 2017? In this post, NC4FB offers a variation on the popular G7FEK nested 1/4 wavelength compact Marconi antenna that fits into a space of 46-feet/14.02 meters long and 24-feet/7.31 meters high.  This antenna offers a low angle of radiation, covers 80 through 10 meters, and is coax-fed.  An antenna "tuner" is required to optimize antenna performance. Construction guidelines are here: http://www.g7fek.co.uk/software/G7FEKantennas.pdf. NC4FB offers his opinion on this cleverly designed multi-band HF antenna: My friend KI4PMI and I always like to try something different each ARRL National Field Day.  This year we selected the G7FEK as one of the ant

Portable Radio Field Operation Post #1139.

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If you can't view this video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=NeWOvIx8bms. Camping and ham radio are great companions. In this video, we get a basic tutorial on how to combine both hobbies into one enjoyable pursuit.  Some of the suggestions shown here can also be applied to the upcoming ARRL Field Day exercise on 24-25 June 2017.  If you're assigned to the late evening operating crew, you'll be glad you set up your tent and operating position as explained in this video.  Most of the materials for this camping operation can be obtained locally or from equipment you already have in your ham shack. For the latest Amateur Radio news and information, please visit these web sites: http://www.HawaiiARRL.info. https://oahuarrlnews.wordpress.com. https://bigislandarrlnews.wordpress.com. http://www.kh6jrm.info (breaking news for radio amateurs). http://www.arrl.org. Other sites of interes: http://hawaiiscien

Portable Field Antenna Project. Post #1138.

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If you can't view this video, please insert this title URL into your browser searchbox: https://www.youtube.com/watch?v=VXo0XucRpt0. Here's another intriguing portable antenna idea from NG9D.  In this video, we learn how to design, build, and use a 3-band HF "Lambda" antenna, so named because it resembles the Greek letter "Lambda." Basically, the antenna approximates a 1/4 wavelength 40 meter vertical with a single 1/4 wavelength elevated radial wire or counterpoise.  This antenna requires an antenna "tuner" for multiband HF use.  The video covers construction tips, "no solder" assembly, and how to make a homebrewed feed line. For the latest Amateur Radio news and information, please visit these websites: http://www.HawaiiARRL.info. https://oahuarrlnews.wordpress.com. https://bigislandarrlnews.wordpress.com. http://www.kh6jrm.info (breaking news for radio amateurs). http://www.arrl.org. Other sites of interest: https://ha