Posts

EFHW Antenna --- Building The Transformer

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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=sty7RlXQoJI. This is post 2095 in a continuing series of articles on simple ham radio antennas. Thanks to Steve Ellington for this easy-to-understand tutorial on how to design and build a 49:1 transformer for End-Fed-Half-Wave antennas.  Steve does an excellent job of explaining both the theory and practical application of this useful device. Here are some of Steve's remarks: "Here is how I assembled a 49:1 impedance ratio transformer for my EFHW. Correction: Torroid part number is 5952003801 Link to torroid https://www.fair-rite.com/product/tor... Please join our Facebook Group: https://www.facebook.com/groups/EndFe... Newer video https://www.youtube.com/watch?v=Bpdpk... " ----------------------- For the latest Amateur/Ham Radio news and information, please visit these websites: http://www.HawaiiARRL.info. http://www.arrl.org. ht

A handheld telescopic portable dipole for 6 and 10 metres

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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=IQ_dI4aVHj8.  This is post 2094 in a continuing series of simple ham radio antennas. Australian radio amateur Peter Parker (VK3YE) has created another great antenna for portable and emergency use.  This time, Peter shows us how to make a handy, easily-made portable antenna for 6 and 10 meters. Here are some comments by Peter: "Covering two bands and collapses down to almost nothing, this portable dipole is idea (l) for summer contacts on 6 & 10 metres. Watch video for description and demo. 27 MHz CBers should be able to use this antenna by adding a turn or two extra on each coil. PS: Like these videos? Wish to support this channel? If so please store this link to Amazon Shopping as a bookmark or favourite. https://www.amazon.com/s?k=amateur+ra... Then when you buy something I receive a small commission (at no extra cost to you). Or check my book

A Ham's Night Before Christmas Video. Post 2093.

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A Ham's Night Before Christmas Video Source: http://www.arrl.org/news/a-ham-s-night-before-christmas-video. Accessed on 24 December 2019, 1955 UTC, Post 2093. Summary: Now that the Christmas Season is finally here, I thought it appropriate to offer one of my favorite seasonal programs--"A Ham's Night Before Christmas" video. The original program was published by HQ ARRL on 28 November 2011.  The text and videos still remain popular today. A Ham's Night Before Christmas Video TAGS:   gary pearce ,  radio 11/28/2011 Just in time for the Holidays, Gary Pearce, KN4AQ, has created a video version of Clement Clark Moore's poem  A Visit from St Nicholas , more commonly known as  The Night Before Christmas , but Gary's version has a decidedly Amateur Radio twist. With a guitar accompanyment by Don Mercz, WA3AYR,  A Ham's Night Before Christmas  features  QST  magazine covers, Gil cartoons and Christmas-themed  QST  advertisements from days gon

Vertical extended double zepp antenna for 2 metres FM (and more!)

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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=Q-t8NBL67fc.  This is post 2092 in a continuing series on simple ham radio antennas. In this video, Australian radio amateur Peter Parker (VK3YE) shows us how to make a simple, effective omnidirectional vertical antenna for VHF FM simplex and repeaters.  The extended double zepp exhibits a modest amount of gain--just enough to hit distant repeaters and perhaps work a bit of 2 meter DX. Most of the antenna's materials can be found in your junk box or at the nearest building supply outlet. For the latest Amateur/Ham Radio news and information, please visit these web sites. 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://hamradiohawaii.wordpress.com. https://bigislandarrlnews.com. https://www.eham.net. T

DIY VHF ANTENNA TUNER made from junk. Post 2091.

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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=95tup1t9PGc. Thanks to "crookedninja5" for this simple, useful antenna "tuner" for the 2-meter amateur/ham band. "Crookedninja5" says the idea for this project came from a desire to make his homebrew coat hanger VHF antenna more broadband. Here are some of the steps used by this radio amateur to make this homebrew antenna "tuner": "I needed something to make my clothes hanger antenna a little more broad-banded in the 100-200 MHz range, so I made a simple antenna tuner from junk... this would work for scanners too.... The variable capacitor can be any 0-365 pf capacitor... for c1 and c2 a ceramic or trimmer capacitor can be used... c3 and the coil is all you really need... About 8 or more turns on the inductor coil with taps spaced out every other turn. The rotary switch is from a old indoor antenna... ev