Posts

How To Build a 6 Meter Plus Antenna. Post 2173.

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If you can't see the video, please insert this title URL into your browser search box:  https://www.youtube.com/watch?v=NmZemahwtzw . Thanks to the late Raymond Jackson (KB9COL) for this excellent step-by-step guide in designing, making, and adjusting a "R 6 Meter-Plus Antenna."  If you need a 6 meter antenna with proven results, then you can't go wrong in duplicating Raymond's idea. Raymond's presentation is well-organized and easy to understand.  Here are some ideas from the video: "Raymond Jackson ( kb9col ) is showing how to build your own 6 METER PLUS antenna. This is a great step by step instructional video. The Length of the 75 ohms coaxial cable " each " is 32 inches. This is from the tip of center " Male " ( Hot ) pin of the PL 259 to the tip of the eye solder terminal . Raymond Jackson: kb9col@gmail.com: ----- For the latest Amateur/Ham Radio news and information, please visit these websites: http://www.Ha

Moxon Antenna: A Great First Beam. Post 2172.

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If you can't see the video, please insert this title URL into your browser search box:   https://www.youtube.com/watch?v=jUiKZ3EIiIc . Thanks to Dave (HL1ZIX) for this professionally produced and well-paced tutorial on the theory, design, and construction of the "Moxon Antenna." The Moxon antenna is named for its creator, the late Les Moxon (G6XN).  The Moxon antenna is a fairly simple and sturdy two element parasitic array that can deliver approximately 5 dBi gain over a dipole antenna. Derek shows us several examples of this versatile antenna which can be built for the HF/VHF/UHF Amateur/Ham Radio bands. An excellent video that should be part of your Amateur/Ham Radio library. ----- For the latest Amateur/Ham Radio news and information, please visit these websites: http://www.HawaiiARRL.info. http://www.arrl.org. http://www.blubrry.com/arrlaudionews/ http://www.hamradioupdate.com. http://www.southgatearc.org. https://oahuarrlnews.wordpress.com. https:

Stealth Antenna-Chameleon Loop Antenna.

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If you can't see the video, please insert this title URL into your browser search box:   https://www.youtube.com/watch?v=GJs7n_ozU9E .  This is post 2171 in a continuing series of simple ham radio antennas. Thanks to "Commsprepper" for this quick introduction to one of the popular Chameleon indoor magnetic loop antennas.  If you live in a deed-restricted apartment or house, a magnetic loop antenna can be your avenue to the airwaves. According to "Commsprepper", this basic magnetic loop antenna works very well at QRP levels with a basic QRP rig such as the Yaesu FT-917. "Receiving HF signals from 600 miles away with Chameleon Loop antenna setup inside house. http://chameleonantenna.com/ " -----

Loading Coils-Let's make short or compact 20m Dipole with MMAMA

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If you can't see the video, please insert this title URL into your browser search box:   https://www.youtube.com/watch?v=Qm2-iEv7dvw .  This is post 2170 in a continuing series of simple ham radio antennas. If you need a full performance dipole antenna but lack the space to erect the total lenght of this antenna, then a few suggestions from the "DX Commander" (Callum--M0MCX) will prove useful. Callum shows how to reduce the length of your HF dipole antenna by using loading coils.  If your coils are properly made, your shortened dipole antenna will deliver almost the same performance as a full-length dipole antenna. Here are few ideas from Callum: "Brief discussion about loading coils, how to model them, how to use an inductance calculator and discuss narrowing your SWR bandwidth due to too high an Inductance. Here's the link: http://www.66pacific.com/calculators/... . Cheers, Callum." ----- For the latest Amateur/HamRadio News and Information,

Construction of a 9:1 unun. Post 2169.

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If you can't see the video, please insert this title URL into your browser search box:   https://www.youtube.com/watch?v=L4jGNFGN-RQ Thanks to Sparkie (2E0VOV) for this simple, concise, and easy to understand project.  For those of us using random long wire antennas, a 9:1 unun is almost a necessity if we hope to avoid serious SWR mismatches to our equipment. According to Sparkie, materials and tools for this useful antenna accessory are readily available: "Welcome to another project.. The core used is a T200-2 with 9 trifilar turns of enamel wire. The box is 120mm x 80mm. All bolts are stainless!. An easy project to home brew and cheap to build. Some of my equipment.. FT817 radio https://amzn.to/2PIvcGY 17m whip antenna https://amzn.to/2Q6qVw5 20m whip antenna https://amzn.to/2zjdcsm 10m Antenna pole https://amzn.to/2TpkFyp Antenna Analyser https://amzn.to/2Q7FKP4 73 Sparkie 2e0vov" ----- For the lates