Posts

Multiband EFHW Base Antenna with 49:1 UNUN (Homemade).

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  Here's another great antenna project from Paul (OM0ET). In this video, Paul makes a sturdy 49:1 UNUN for a new EFHW Antenna covering 40m, 20m, 15m, 10m without bulky coils or traps. The building procedure is simple and direct and produces a beautifully designed and efficient antenna accessory. If you can't see the video, please insert this title URL into your browser search box:  https://www.youtube.com/watch?v=z-_2aBqcjI8. Thanks for joining us today. Aloha es 73 de Russ (KH6JRM). Here are a few comments from Paul (OM0ET). CORRECTION: Toroid core is used FT240-43 (not 140-43) My new home made Multiband End Fed Half Wave Antenna which has been designed mainly for 40M band (7MHz), but this antenna tunes also on 20M-15M-10M without any traps or additional coils. This antenna is made for 100W RF input power and is 19,129m long. SWR on 40M band is 1:1.1 within the phone section and less than 1:1.5 within a whole band. The 49:1 UNUN box is weather proof and all holes for component

Indoor Antennas In Apartment Building and other options.

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  "The Ask Dave" youtube programs produced by David Casler (KE0OG) are very popular with both newly licensed amateur radio operators and experienced "hams." In this video, Dave answers a question about limited space and indoor antennas from Randy (KF4RJH).  Dave explores the various options available to meet this challenge, while still enjoying the thrill of making contacts under less than desirable conditions. If you can't see the video, please insert this title URL into your browser search box:  https://www.youtube.com/watch?v=Wbuw4yFp81U. Thanks for joining us today. Aloha es 73 de Russ (KH6JRM). Here are some comments from Dave (KE0OG): Randy, KF4RJH, has some problems with space to put his antenna. He is asking me if he can put up an inverted dipole inside his apartment and how well it should work. Watch to learn more on his interesting situation. #indoor #hamsticks #magloop Subscribe:     / davecasler   . Giveaway Info: http://dcasler.com/giveaway/