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Showing posts with the label Vertical Dipole in Tree.

Vertical Dipole in Tree.

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If your ARRL Field Day site has plenty of trees, you may want to erect a vertical dipole antenna using a tall tree as support. The vertical dipole offers a low angle of radiation and requires no ground radials or counterpoise system. According to Stan Gibilisco (W1GV), this antenna is easy to make, erect, and take down.  You could also use this design at your home station if you don't have an antenna support mast. All you need is a tall tree, a simple launching method (slingshot, bow and arrow, fishing rod and reel), some 450-ohm ladder line, a transceiver, and a transmatch (i.e. "tuner"). If you can't see the video, please insert this title URL into your browser search box:  https://www.youtube.com/watch?v=RI2_T-LeYEU. Here's a quick comment from Stan (W1GV): Try this antenna and work DX on a budget! http://www.sciencewriter.net Stan Gibilisco 37.9K subscribers Thanks for joining us today. Aloha es 73 de Russ (KH6JRM).  

Vertical Dipole in Tree. Post #1657.

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If you can't view video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=RI2_T-LeYEU. If you have a tall tree on your property, you may want to try this antenna.  As Stan Gibilisco (W1GV) explains, this multiband HF antenna can be used where space is at a premium.  Each leg of the dipole should be at least a 1/4 wavelength at your lowest frequency of use.  An antenna transmatch (i.e. "tuner") and ladder line will permit multiband use.  Try this simple antenna and "work DX on a budget." For the latest Amateur/Ham Radio news and information, please visit these websites: http://www.HawaiiARRL.info. http://www.arrl.org. http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon). https://oahuarrlnews.wordpress.com. https://hamradiohawaii.wordpress.com. https://bigislandarrlnews.com. https://www.eham.net. http://www.southgatearc.org. Thanks for joining us today. Aloha e

Simple Ham Radio Antennas--Vertical Dipole in Tree

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If you're having trouble viewing this video, please enter this title URL into your browser search box: https://www.youtube.com/watch?v=RI2_T-LeYEU. This is post #990 in a continuing series of Simple Ham Radio Antennas.  Here's another dipole antenna for those lacking the space to install a full-length horizontal HF dipole.  This antenna is vertical dipole fed with 450 ohm ladder line and arranged so that each element is suspended from a tall support such as a tree or telescoping fiberglass mast.   Stan Gibilisco (W1GV) does a good job of explaining the theory, construction, and use of this dipole variant. If the dipole is cut for the lowest frequency of operation and fed with ladder line, television twin lead, or  homemade balanced feeders, you will have a cheap, easily made dipole capable of covering several HF amateur radio bands .  An antenna transmatch (i.e. "tuner") with a 4:1 current balun is needed to match the feed line impedance to the impedance of