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Showing posts from February, 2022

Ham Radio 40/80/160 Meter Inverted V Dipole Antenna

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Thanks to Dave Tadlock (KG0ZZ) for this 3-band inverted V antenna project.  According to Dave, this coil-loaded HF antenna covers the 40/80160 meter bands without an antenna "tuner." This antenna requires only a single supporting mast, which can be made of wood or PVC pipe. If you can't see the video, please insert this title URL into your browser search box:  https://www.youtube.com/watch?v=GLhNUmolKKY Thanks for joining us today. Aloha es 73 de Russ (KH6JRM).  

Ham Radio Antennas For Beginners-Build Your Own Today

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An enjoyable, often inspiring look at homemade antennas that are easy to make, inexpensive, and fun to use. If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=K-w9CPHkl5k Here are some comments from Scott (HR4NT): When delving deeper into Ham radio, you may be curious about building an antenna. The thought of doing this may be a little scary, but I promise you it is not. I will show you how to find pretty much all your parts locally and some online, build the antenna in about 30 minutes and be up and running. We literally build this antenna from stuff I got at Walmart and Home Depot and Amazon. Links to most everything is below. Shoutout to KB9VBR for the inspiration. ------------------------------------Content Selection---------------------------------- 0:00 - Intro 1:22 - Overview and supplies list 7:29 - The build Procedure 12:34 - Soldering the element to the SO239 Connector 14:31 - Final Assembly 17

HAM RADIO: Your First HF Antenna

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Thanks to Tim (G5TM) for this excellent introduction to HF antennas.  Tim reviews 3 major antenna designs which can be used by both newly licensed hams and experienced operators. If you can't see the video, please insert this title URL into your browser search box:  https://www.youtube.com/watch?v=bDo6E27Wnd4 Thanks for joining us today. Aloha es 73 de Russ (KH6JRM).  

BugOut Vehicle VHF/UHF Antenna Installation

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Thanks to Gil of the "RadioPreppers.com" video channel for this simple, efficient mobile antenna installation.  Most of the materials for this project can be found locally or on eBay. If you can't see the video, please insert this title URL into your browsers search box:  https://www.youtube.com/watch?v=EUDdc82DMto Here are some comments from Gil: Installing a VHF antenna base for my LJ70 Land Cruiser was pretty easy. I had to replace my CB antenna cable because of a short, but I am left with a weird reception problem with my President Grant II. Some thoughts about bug-out vehicles... And we passed 10,000 subscribers, woohoo! https://www.patreon.com/radioprepper DISCLAIMER: The Radio Prepper logo (depicting a microphone) is indeed inspired from a famous flag created in 1775. It is NOTHING BUT a symbol of freedom and independence. It does NOT imply support to any political group. It does NOT imply, represent nor support any ideology with an intent on harming anyone. Free

Ideas for compact 80m/160m antennas

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Low Band antennas (80m/160m) require lots of room for peak performance.  Is it possible to get decent performance by using linear loading of an inverted L or some other antenna? In this video, Callum (M0MCX) explores several ideas for compact low band antennas. If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=th9bPEm9i9k Here are some comments from Callum: Inverted Ls do work for these low bands but what if you don't even have that amount of space? Perhaps linear loading an inverted L might do the trick, although the bandwidth might be tight - and the impedance might not be perfect either. Anyway, we'll see. HEY! Subscribe here: https://goo.gl/thM5Vq My Shop: https://www.m0mcx.co.uk/store/products/ Enjoy your science folks. Good luck. Callum. M0MCX. DX Commander Founder. ----- Thanks for joining us today. Aloha es 73 de Russ (KH6JRM).  

80 Meter Half Square Antenna

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If you want a good, effective DX antenna for the 80 meter Amateur Radio Band, then please consider this Half Square Antenna from Don Johnson (N4DJ). According to Don, this antenna offers a bi-directional low-angle signal launch using readily available materials. If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=2SBGdPMnH-E Here are some comment from Don: My 80 meter bent half square was probably the best antenna I ever had. I had it broadside to Europe at my Hampton Va QTH, I had it broadside to the Pacific area for one contest at my New Kent location and then installed it again broadside to Europe. Very hard to work Europe off the ends so I took about 5 hours to rotate it. Only rotated it once! It is important to note that a half square is not worth the trouble on 20 meters and above because a dipole at the same height as the top wire of the half square has more gain for DX. On 40 meters the top wire is about 35

KK5JY "LoG" Loop on Ground low-band RX antenna at WX0V.

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If you need a low noise receive antenna for a crowded urban area, then this idea from Matt Roberts (KK5JY) may prove useful. The antenna is inexpensive and easy to make. This antenna was installed at WX0V. If you can't see the video, please insert this title URL into your browser search box:   https://www.youtube.com/watch?v=wMb8i5QajW0 Here are some comments from WX0V: Here is the KK5JY Loop on Ground, or "LoG", low-band (primarily 160m and 80m) receive antenna at my station. This antenna was designed by Matt Roberts, KK5JY. Please refer to his web site for more information on this antenna: http://www.kk5jy.net/LoG/ The cores that I used are the Amidon BN61-202 binocular cores, which are readily available on-line. Some have stated that a 73 mix binocular core is better than a 61 mix (or 43 mix). That is possible, too. It doesn't hurt to experiment. The wire I used is Temco MW0064 28 GA solid copper magnet wire. That seems to have been discontinued, and rep

Ham Radio: Easy Portable/Small Space Vertical DX Antenna

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Radio amateurs with limited space may find this antenna design from Tim (G5TM) a decent compromise antenna for HF operations. The key to this antenna's performance is a good ground radial system, a 1:4 UNUN, and an antenna "tuner." If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=W8esOsVTLyc Here are some comments from Tim (G5TM): I’ve been looking at this for a while. How does this antenna match up against its quarter wave cousin? Connect with my channel by subscribing and commenting. ----- Thanks for joining us today. Aloha es 73 de Russ (KH6JRM).    

How to shunt feed your tower

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Thanks to Steve (VE6WZ) for this useful, practical guide to shunt feeding an antenna tower.  Lots of good suggestions and testing procedures. If you can't see the video, please insert this title URL into your browser searchbox:  https://www.youtube.com/watch?v=cHlc5MTGTFM Here are some comments from Steve (VE6WZ): This shows the method for shunt feeding a tower. Using two different analyzers I show how to find the 50 Ohm point on the tower to achieve a 1:1 SWR match. Also explained is the effect of wire diameter on SWR bandwidth and reactance. Omega match video: https://youtu.be/NA-Kwr09j8M Here is the online Xc calculator described in the video: http://www.endmemo.com/physics/reacta... ----- Thanks for joining us today. Aloha es 73 de Russ (KH6JRM).  

Building a DIY Multi-Band Dipole for HF

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If you're restricted to using only one antenna for your HF operations, then this simple, inexpensive project from W4AOX is what you need. The antenna covers the 40 and 20 meter Amateur Radio bands without an antenna "tuner."  With an ATU, you can cover the 15, 12, 10, and 6 meter bands. If you can't see the video, please insert this title URL into your browser:  https://www.youtube.com/watch?v=zwHfHXVI0vs Here are some comments from W4AOX: In this video I go through the steps to build a very simple, inexpensive multi band dipole antenna for the 40 and 20 meter amateur radio bands which can be used either at your home or in the field for off-grid emergency communications. Additionally, this DIY wire dipole antenna will also work on the 15, 12, 10 and 6 meter bands if your radio has an ATU or you have an external tuner. This exact DIY Dipole Antenna has allowed me to work and confirm 26 countries, all 50 U.S. states and every continent. Parts List: 1ea. 1G 1/2"