I took the homebrew QRP 1 m diameter small transmitting loop out to a local summit for some fun and was surprised with some fantastic propagation, on 40 meter nonetheless. This was one of my first DX contacts on the band, and with a small compromise antenna and QRP power, nonetheless.
Small transmitting loop antennas are relatively simple and fun to build. Here’s a little helpful info to get you on the right path to building.
Also check out @Amateur Radio VK3YE’s videos here on YouTube – he has done lots of work with small transmitting loops.
Here’s the hardware I use to make the larger part of the loop. Pretty simple bar-stock aluminum folded out straight and then bent into a circle. Works great!
1/16" x 1/2" Flat Aluminum Bar: https://amzn.to/3trTdAX
Mini project box: https://amzn.to/3h8FeNP
6-32 x 1/2" Stainless Screws: https://amzn.to/3tmqI7G
6-32 Nylock Nuts: https://amzn.to/33lLnyj
#6 Flat Washer: https://amzn.to/3h9YJWy
Feeding and matching a loop takes a bit of trial and error, and some specific electrical components – primarily variable and potentially also switched capacitors that can handle very high voltage and currents. Study up before you build to optimize your design.
If there’s interest, I can create some videos that go more into my strategy for building and matching these types of antennas. It’s a fun build!
To learn more about me, visit: http://www.dcasler.com/about/
Tip jar (on my website): http://www.dcasler.com/tip-jar/ (provides a method to use your credit card via PayPal, Also describes Patreon)
To pose an Ask Dave question: http://www.dcasler.com/ask-dave/ or http://www.ke0og.net/ask-dave/
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I use drawings from OpenClipArt.org, including the "walking man"
Technician training videos, see http://www.ke0og.net/training/
General training videos, see http://www.ke0og.net/general/
Amateur Extra training videos, see http://www.ke0og.net/extra/
List of the Ask Dave videos, see http://dcasler.com/ask-dave/#askdavelist
Thanks to my sweet wife, Loretta, KBØVWW, for both audio and video assistance! (Her website is www.aldea-art.com.)
My primary website: http://www.dcasler.com
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My publishing website: http://www.mtsneffelspress.com, where you can find my fantasy and science fiction books, as well as some local history books I publish for the Ridgway Railroad Museum and the Ouray County Historical Society
My Amazon author page, which lists my print and Kindle books: http://www.amazon.com/-/e/B00471I0Q4.
I’m often asked what equipment I use to create the videos. The devices include the Panasonic DMC-G7 camera, Panasonic HDC-TM90 video camera, GoPro Hero2 HD camera, Tascam DR-05 audio recorder, Audio-Technica ATR-3350 lapel microphone, Sony Cyber-shot DSC-W560 digital camera, the Kodak Zi-8 video camera, my iPhone 5S. Software used: CyberLink PowerDirector 17 on an HP Gaming Pavilion, also using Smoothdraw 4.0.5.0, FastStone Image Viewer 5.3, FastStone Capture 8.0, Audacity 2.1.1, LibreOffice 5.0.4.2, and Ink2Go 1.7.2. You can see how my studio is set up by viewing https://youtu.be/wFSQ8vtNA5A.
Come and join the fun! In this edition of Coffee and Ham Radio, we discuss topics of interest for Ham Radio Beginners.
Ham Radio Dude – https://www.youtube.com/channel/UCCS3bLYRlUQmN1xLZCoidKw
Ham Radio DX – https://www.youtube.com/channel/UCo_jX41l6nYfnrQuk0qsZFw
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New "research" has led to a claim that says global tracking of aircraft is possible using weak radio signals that cover the globe, known as WSPR, or the "weak signal propagation report" network and that these radio signals can help find missing aircraft Malaysia Airlines MH370.
In this video I share my thoughts on this theory and why it’s not possible to utilize this data to find MH370.
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I hear it from many in the comments! "Amateur Radio is TOO Expensive!" Lets talk about a budget options for those looking to get on the air without breaking the bank.
KI6NAZ AREDN Setup: https://www.amazon.com/shop/hamradiocrashcourse?listId=Z646U92WT1EK&ref=idea_share_inf
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Helpful AREDN Links:
Working Hardware: https://www.arednmesh.org/content/supported-platform-matrix
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Current Shack Config (includes affiliate links)
ICOM 7300: https://amzn.to/2PKBpmZ
SteppIR 3E Yagi: https://consumer.steppir.com/shop/horizontal-antennas/3-element-antenna-products/3-element-yagi-antenna-with-30-40-loop-dipole-package/
ICOM 2730a: https://amzn.to/2JqrASg
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Today I compare and test 3 different models of the Baofeng UV9R.
Links:
Mirkit 8-watt model: https://amzn.to/3nQeVxc
18w model: https://ebay.us/ENlcGj
20w model: https://ebay.us/Sfpd1I
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In this video, we take a look at the Mustool MT8206 Autoranging Multimeter.
Note: This Multimeter was sent to me free of charge from Banggood.com in exchange for this video review.
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Coupon: BG0926ca(CN); BG38ef6d (USA)
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