Homebrew magnetic loop antenna. BUILD THE 10 METER WONDER BAR ANTENNA Hamuniverse. The independence from large squid poles and small antenna footprint that would be possible appealed too. The antenna is under the roof and mounted in horizontal polarisation. As I mentioned yesterday, I fixed an issue with the variable capacitor feed screw. Despite its small size, compared to a full size dipole of the same frequency, the Magnetic Loop holds its own, and with a few tricks will not make us regret the dipole. Apr 24, 2020 · Magnetic Loop antennas 40 - 10 metres1 - 7 of 7 1 Apr 24, 2016 · Homebrew Magnetic Loop Antenna Part 2 - Loop Assembly Electronic Bytes 785 subscribers Subscribed 20 Meter Circular Magnetic Loop by Maurizio Malaspina - IW6DFW My operating conditions are: - Radio IC-7000 @ max power (100W) - 20m of RG58 A/U coax --> more or less 75 percent of power to antenna @ 14MHz Sep 10, 2019 · Magnetic loops for 144 MHz Magnetic loops are normally thought of as the type of HF antenna you'd use if you've got not space for something that's full size. As I write this I'm testing one indoors. Listed under the Antennas/Magnetic Loop category that is about Magnetic Loop antennas. (This can be on a diagonal). The loop was constructed almost entirely from materials and components I had accumulated over the years and consequently cost little. Mar 31, 2016 · If you make the loop much longer than 1/10th of a full wavelength, it turns into a different type of antenna (specifically one that has both voltage and current nodes) and you will start to lose your nulls and the directivity starts to change. One of the cool things about Klaus’ antenna is that he can easily position it vertically (see above), or fold it over into a horizontal position (see below). The idea for this loop began with my purchase of a new vertical antenna. Pack which can easily hold the entire loop, folding tripod, and antenna analyzer. If you want to work stations on 80 and 160 meters, but have little space to erect an antenna, try this fairly simple magnetic loop antenna from Kevin Loughin (KB9RLW). However, it also requires retuning quite often in order to stay on-band. So I build this simple active receive loop antenna to see if they work… and they do. The best way to tune is with a swr analyzer. Antenna covers all bands 80-10 meters + 30, 17, 12 meter WARC Bands This antenna works as a Full Wave Loop on 80 Meters and also works asRead More homebrew magnetic loop antennas for 13-29. 12. The cost of this is small bandwidth, high voltage capacitors, and the necessity to keep resistance losses very low. 14 meters total circumfence, 50 mm wide, 2 mm thickness): Unlike most classic loop designs, the tuning capacitor and the smaller coupling loop are both at the base of the Jul 18, 2023 · Ever thought of hiding a loop as a volleyball net? Larry’s variation of the W6LVP amplified magnetic loop antenna The Signal Sweeper-How to Build a Portable Wellbrook Loop Antenna Magnet Wire Vertical Loop (stealthy) Paul’s large aperture “Volleyball Net” loop antenna How to build a passive resonant transformer coupled loop for HF (updated) Magnetic Loop Antennas – a brief theory and a practical antenna for 3. The light weight, low noise and easy deployment characteristics of a magnetic loop antenna make them a popular choice for HOA restricted Ham radio operators, or for anyone who can't or doesn't want to deploy traditional supported whip, dipole or wires type antennas. Ideally, a loop antenna is designed to be portable, easy to assemble, small enough to use when camping or operating in remote locations, and able to cover several bands. I will list all the parts May 3, 2021 · Building and testing small transmitting loops, also known as magnetic loop antennas, for the amateur HF bands. In addition anyRead More This video clip describes my magnetic loop antenna build from start to finish. We have had lots of requests for it. If you are a talk-radio fan then experiment with the AM band antennas and you will be able to hear shows from all over the country with surprising clarity. I use here the Crypto machine PACE and the radio transceiver NO/VRC-11. Compared to my YouLoop antenna, my home-brew tunable loop is about 3 S-Units (18 dB) better. So you have an omnidirectional radiation pattern. The new antenna was built with the following considerations in mind. A few days ago, SWLing Post contributor, Robert Gulley (AK3Q), pointed me to an excellent website by Harry Lythall (SM0VPO) which is chock-full of various homebrew radio projects. The objective of this short paper is to disseminate some practical information about successful May 2, 2021 · Thanks to 2E0ERO for this beautifully designed and built HF Magnetic Loop Antenna. Description Below is a diagram and some construction details. Jun 5, 2025 · I managed to build a working magnetic loop for roughly one-third the cost of commercial alternatives—and incidentally, some of my SWR readings rival those of well-known brands. May 30, 2018 · The completed 20 meter loop antenna. Have fun! (updated 12-2013) The fabulous homebrew 10 Meter WonderBar Antenna * SWR 1:1 over May 30, 2024 · The Magnetic Loop antenna has always been a fascinating antenna for me, different from the classic wire or dipole stretched in the air. 2020: - SOTA & portable magnetic loop antenna After years of using my homebrew magnetic loops as my main antennas from inside my apartement, it was time to make one for portable work while on SOTA or on travels. Oct 25, 2022 · The F-Loop packed I thought I had posted an activation video using the F-Loop, but looking back I realize I have not. I made a loop specifically for one radio. Jun 6, 2018 · Homebrew magnetic loop antenna DIY Magloop project June 6, 2018 Julian OH8STN 0 the easiest way to build yourself a magnetic loop antenna for amateur radio portable Jan 23, 2018 · I think an inexpensive antenna such as this could improve some KiwiSDR installations. 2 Meter Halo Antenna by Mike Fedler N6TWW has the detailed instructions on his site. If your antenna is to high in frequency, then you lengthen the element. 5 to 14MHz ABSTRACTS u2013 2017 | 2018 by Marica Martella is licensed under CC-BY-NC-ND 4. Jul 18, 2019 · A simple multi-band magnetic loop antenna designed for 20, 30 and 40 metres, made from 16 feet of RG58 coax cable. Have you been considering either building or buying an antenna of this Characteristics of Small Loop Antennas for HF Operation Coupling loop ≈1/5 diameter of main loop for good impedance matching on all bands Antenna is narrowband, operating at resonance of loop L and tuning C Radiation resistance in series with loss res. ,KL7JR Presented here with his kind permission from an article published in 73 Magazine "When I think back a few years ago I had 10 acres to use for my antenna farm. . The tuner uses an Arduino Uno with a stepper motor driver shield to tune the antenna remotely. Have any of you dabbled with a homemade Magnetic Loop Antenna? I know there are some gloriously buil Nov 10, 2020 · Remember we are not trying to compare these magnetic loop antenna with full size amateur radio dipoles mounted many feet or meters in the air. Many years ago, I tested a Pixel Loop amplified mag loop antenna (now under a different name and sold by DX Engineering) specifically for use on the mediumwave band to null unwanted stations. 00 . The two Garolite® squares had to go. If you've been following our previous posts you'll know that we recently started selling the 'YouLoop' which is designed and produced by Youssef from Airspy. The antenna features a tuning head, matching unit, tuning capacitors, band change switch, and matching transformer. Often used as receiving aerials can be used as transmitting antennas. Aug 26, 2024 · Posted in Radio Hacks Tagged antenna, co-ax loop, magnetic loop ← Building A Microcontroller From Scratch: The B4 Thinker Project Everything You Wanted To Know About Early Macintosh Floppies → Mar 19, 2016 · 1. It isn't perfect and displays more repeating interference spikes than I would like, but it is still better than many other antennas I've listened to. I wasn’t totally Sep 17, 2012 · 559 on forty into Kanses aith 14 Watts max, using an indoor, homebrew magnetic loop. Historical Magnetic Loop Antennas Magnetic Loop from the 1928 Old Receiving Magnetic Loop Antennas HF- Magnetic Loop Antennas Hula- Hoop Magnetic Loop Loop Antennas for ALE and Frequency Hoping. H. Let me start by saying that I don't have the haughtiness to teach you the "who-knows-what" secrets of a perfect STL (Small Transmitting Loop 2 days ago · Antenna design for use with hidden transmitters on international-rules ARDF events 144 Mhz Magnetic Loop A magnetic loop antenna for 144 mhz, two meter band 2 Meter 10 Element Quagi Antenna This antenna was designed by N6JSX Kuby for Transmitter hiding. A Homebrew 40m Magnetic Loop Antenna I checked his gear and found he had two hf transceivers which were still in working order; an old Atlas 110x and a Kenwood TS-120. So if you want a performance antenna to operate mobile or in a small space, the magnetic loop is a very worth while candidate. I did finally find some info that provides some insights into the performance trade-offs with this type of sm… After a Qth change last year, I was fortunate to get permission for an outside antenna. An Overview of the Underestimated Magnetic Loop HF Antenna It seems one of the best kept secrets in the amateur radio community is how well a small diminutive magnetic loop antenna can really perform in practice compared with large traditional HF antennas. The safercctv homebrew magnetic loop antenna is easy to setup, is very effective, it is made for frequency range and has a great design. Now when you think of 26 feet of antenna, it doesn’t seemRead More The magnetic loop antenna seems like a potential solution to the problem of having little or no space to erect a normal dipole in a built up inner city location. I can put it in my trunk, takes all of 5 minutes to put it together at a remote site and the results are pretty darn good. May 30, 2018 · The completed antenna. At least 10 – 20m coverage Open wire feed to simplify matching the various impedances Loop design, because it is less sensitive to nearby objects and it requiresRead More All topics related to home brew and commercial Magnetic Loop antennas for receiving and transmitting radio signals. They require towers or at least a support to allow the antenna to be a substantial fraction SMALL LOOP ANTENNAS An Overview of the Underestimated Magnetic Loop HF Antenna Leigh Turner VK5KLT It seems one of the best kept secrets in the amateur radio community is how well a small diminutive magnetic loop antenna can really perform in practice compared with large traditional HF antennas. The smallest antenna described for 80 metres was a magnetic loop. I had saved the plans from a couple of years ago from the Amateur Radio Lighthouse Society web site and this article and all the credit goes to them and Jim, K2JXW. Mar 22, 2023 · The full wave loop antenna is a big performer. PY1AHD ALEX the ALEXLOOP Portable Magnetic Loop creator working on his home factory. The performance is impressive for its size but not meant to replace a Yagi. Homebrew a remote Tuning Magnetic Loop Antenna for under U$ 5. These antennas are very small if compared to the full wavelength. Antenna covers all bands 80-10 meters + 30, 17, 12 meter WARC Bands This antenna works as a Full Wave Loop on 80 Meters and also works asRead More Apr 6, 2020 · Over on the SWLing Post Blog Thomas has uploaded an excellent tutorial showing how you can build your own YouLoop (aka a Noise-Cancelling Passive Loop). Almost without exception, my cheap homebrew wire antennas outperform wideband amplified mag loop antennas…sometimes, by orders of magnitude. Jan 9, 2017 · Many thanks to SWLing Post contributor, Klaus Boecker, who follows up after our recent post showcasing his homebrew magnetic loop antenna. The amplifier consists of two units, a weatherproofed outdoor unit for connection to a suitable loop and a base unit to further amplify the signal and to provide DC power up the coaxial cable to . Mar 21, 2020 · Magnetic loop antenna has great performance for receiving weak AM/SSB radio signals in urban area where an regular beverage antenna is usually overloaded by industrial HF noise of modern city. 5MHz) loop (or frame) antenna has been really popular, and that there are loads of other radio amateurs who have taken my design and “ran with it” to produce variations that all have some great improvement. ← Hackaday: “Secret Radio Stations by the Numbers” Final day: Share a photo of your shack or listening post for a chance to win a Grundig G2 → Article by W2BRI After many requests by Ben W4KSY*, someone I consider to be my loop mentor, I decided to post a page about my 80 meter magnetic loop. MAGNETIC LOOP No. With these limitations, I have used magnetic loop antennas with some success over the past few years. To build this antenna you need a lot that is at least 100 feet across. Many thanks to SWLing Post contributor, Harry Lythall (SM0VPO), who shares the following update to his excellent homebrew 20 meter magnetic loop antenna post: Antennas 70MHz Quarter Wave Ground Plane – Building a simple 1/4 wave ground plane antenna for the 4m band. This interesting feature makes the ground plane losses very low and generally this antenna has little dimensions. Aug 1, 2024 · 2. For the first design (which leaves room for improvement), a long thin piece of aluminium sheet was used (3. The design features broadband operation from 160m to 20m bands, requiring only phase-delay adjustments via Feb 18, 2012 · A magnetic loop antenna may be the answer and they are not as difficult to build as you might think. Electrical circuit of this active antenna amplifier board is based on high impedance differential A 40 Meter Magnetic Loop With Semi-Automatic tuning by WA2FZW Version 1. OVERVIEW This post relates to the design and build of a 160/80/40 Meter magnetic loop antenna. 0 For Radio Amateurs wishing to use HF bands below 30MHz, the physical size and height above ground of conventional antennas can be a problem. I’ve been an addict of full wave (and partial wave) loops since realising many years ago that in comparison to a dipole, you get more bang for your buck if you build a loop – certainly you get more copper in the air – and loops are resonant on EVERY harmonic so a 40m loop will be resonant on 20, 15m and 10m. The Wonder Loop is the perfect antenna for picnic table or hotel room operation, or for home station use where outside May 15, 2021 · title: “Building A Magnetic Loop Antenna” date: 2021-05-15 00:00:00 categories: [amateur radio] tags: [ham radio, antenna, homebrew, radio] — During the 2020 COVID-19 pandemic I decided to dive back into the world of amatuer radio, building a workbench/ham radio “shack”, and building a few antennas to get on the air. Mar 22, 2019 · I’m often asked about what’s involved with building a home brew magnetic loop antenna. Version 1 of the loop had a small 272 pF capacitor in the loop that made the tuning very sharp, to the point of where the bandwidth was too narrow to listen to AM voice. They are particularly effective for QRP operations and can be built with readily available materials. com/watch?v=s Jun 25, 2011 · * RJELOOP1 - calculates the efficiency and performance of small magnetic loop antennas * GRNDWAV3 - a ground wave propagation modelling program that calculates signal strength at a specified distance based on transmitting frequency, antenna efficiency and ground conditions. I'll do a video on it eventually. I decided that this antenna had to be lightened up a little. ; power divides between R and R rad loss Doughnut-shaped radiation pattern around loop May 30, 2018 · This entry was posted in Antennas, How To, Mediumwave, News, Shortwave Radio and tagged Giuseppe Morlè (IZ0GZW), Homebrew Mag Loop Antenna, how to build a magnetic loop antenna, Loop Antennas, Mag Loop Antennas, Magnetic Loop Antennas, Shoe Rack Loop Antenna on February 2, 2022 by Thomas. This article provides all the details needed to build your own. If you’re considering building a passive loop antenna–one designed to both transmit and receive without any sort of receiver amplification–it’s a simple project. -by 1SFØ72 • This document is about fundamental theories of Small Transmitting Loop antennas (STL) and focuses on capacitors construction. #2 The Airspy Youloop passive loop antenna If you’re not inclined to build your own passive loop antenna per the diagram above, Airspy is planning to manufacture and sell a lightweight, high-performance loop of a similar design. Magnetic Loop Antenna Magnetic loop antennas are compact and efficient, making them ideal for portable use. This my loop #6. I'm communications chief in a home guard battalion and I testing here a new magnetic loop antenna I designed. Magnetic Loop Antennas – Experimenting with a VHF magnetic loop and a larger HF one in the back garden. Once again about Magnetic Loop Simple Magnetic Loop Antenna for a Journey Receiving- Transmitting Magnetic Loop Antennas Ferrite Magnetic Antenna for the 160 and 80- meter Bands Receiving- Magnetic Why an eight-shaped magnetic loop antenna? The idea behind the double loop is that two properly polarised magnetic fields enhance each other and because the two loops are in parallel, the impedance at the tuning point will be lower and the bandwidth larger compared to a single loop. com presents good plans for the Wonder bar antenna. I had some of the components including the fixed and variable capacitors in my junk box. It was great to be able to put wires on the towers or off my garage or in the field anywhere I wanted. Coupling to the antenna connector is via a 240-43 ferrite toroid with 5 wraps of #14 insulated copper wire to a coax cable and SMA connector to the radio. Magnetic Loop Antennas – Experimenting with a VHF magnetic loop and a larger HF one in the back A friend of mine, Flavio Pohlmann, PY1ZFP, who is living in Montreal , showed me a homebrew VHF magnetic loop with the diameter of a DVD and told me how impressed he was with this tiny antenna. Oh well, now it's a two car garage to Aug 29, 2021 · Almost without exception, my cheap homebrew wire antennas outperform wideband amplified mag loop antennas…sometimes, by orders of magnitude. Communications officers think this was very interesting. I hope to take you step by step through the process of building a magnetic loop out of copper pipe. Many manuals and how-to sites can be hard to follow, not well explained, and simply assume too much. Our goal is to build a practical and portable HF field antenna, which won't take lots of space, weight, which can be used with our QRP radio on the go. An Easy Guide to How to Build Your Own Magnetic Loop For many people without building experience following instructions on how to make something is not always that easy. Feb 9, 2017 · Last month I published the teaser video for the Ultimate Man Portable Magnetic Loop antenna build. I chose the TS-120, cleaned it up, cleaned up his Astron linear power supply and his microphone. Like getting on the air for the first time or taking your license exam there is a certain amount of uncertainty when you first approach magnetic loop antennas, there are a few new ideas to grasp. Magnetic loop antennas are becoming even more popular these days because they can be very efficient for their size, do not need radials (even though most designs are vertically polarized), have useful takeoff angles, and can be easily rotated to peak or null a signal. For an omnidirectional, multi-band antenna, this one needs to be taken seriously! The thing is, nobody is or needs to pay me to say this! Jan 4, 2020 · This post 2104 in a continuing series of simple ham radio antennas. The antenna was practically tested on 10 MHz band. Antenna Jan 29, 2018 · This entry was posted in Accessories, AM, Antennas, Guest Posts, How To, News, Shortwave Radio and tagged Antenna building, Antennas, Homebrew, Mag Loop Antennas, Magnetic Loop Antennas, TomL on January 29, 2018 by Thomas. Mar 7, 2017 · Update 25. 2 This project describes the construction of a homebrew 2-turn 40 meter magnetic loop antenna and the semi-automatic remote tuner for it. Claims for this antenna state that it should function from 20 kHz to over 50 MHz, with nulls approaching 30 dB deep. 2 days ago · The intended audience is amateur radio operators interested in building and using antennas for QRP indoor operations. This article provides details needed to build your own. 5 MHz - 7. May 7, 2018 · This entry was posted in AM, Antennas, Longwave, Mediumwave, News and tagged AM Passive Loop antenna, Bill Hemphill (WD9EQD), Homebrew Mag Loop Antenna, Loop Antennas, Mag Loop Antennas, Magnetic Loop Antennas on May 7, 2018 by Thomas. Effectively, if the station being received is S5 or better on a very good outdoor antenna, it can be copied on this tunable indoor magnetic loop antenna. Jun 1, 2022 · Hi All, Hope you're keeping well and enjoying your radio. Now when you think of 26 feet of antenna, it doesn’t seemRead More This entry was posted in Antennas, How To, Mediumwave, News, Shortwave Radio and tagged Giuseppe Morlè (IZ0GZW), Homebrew Mag Loop Antenna, how to build a magnetic loop antenna, Loop Antennas, Mag Loop Antennas, Magnetic Loop Antennas, Shoe Rack Loop Antenna on February 2, 2022 by Thomas. Fitting the requirements of directionality, high gain, and portability. 144MHz Portable Yagi Beam – A compact, portable 6 element 144MHz Yagi antenna. ) Further, a magnetic loop engages with the H field of a radio signal more so than the E field, allowing a different reception “view” of signals. That is really excellent proof that it's doing it's job and radiating well. ” Here’s how to make the “Super” antenna. Jul 24, 2015 · So, let’s make our own HIGH efficiency magnetic loop for the bands from 20 to 40 meters and below, where AmRRON and other EmCOMM organizations do the lion’s share of the work. Amateur Radio, Antenna Theory, Homebrew Antennas, Hidden and Stealth Antennas, CC&R's, and Antenna restriction. com/watch?v=JNN5f7H8gEUPart 3 is here: https://www. Note that the element is continuous except for a gap at the top Consider the small single turn magnetic loop antenna if any of the above situations apply to you. (I have tested the loop from LW to the 30M ham band. Guest Post: SM0VPO’s 3D Printed 10KV Tuning Capacitor Aug 17, 2016 · I built a prototype today of a high voltage variable capacitor for the 40m Magnetic Loop antenna I am building. Presently, the controller requires a hand- wired board, bit sometime in the future I will Feb 26, 2013 · So I need reception antennas which are less susceptible to these noises. This is information about loop construction process from different amateurs using AAA-1 kit or LZ1AQ loop amplifier. However they can also be used on 2 metres. The design was inspired by an article by DJ3RW about an unusual design of magnetic loop antenna for 50 MHz band, printed in Funkamateur 10/97. The Loop Antenna Amplifier contains all the electronics needed for home DIY construction of an active loop (magnetic loop) low noise receiving antenna. Jul 24, 2015 · This little Magnetic Loop does remarkable well, sits literally two feet off the ground. 2 3. The build utilises the DIY Magnetic Loop Starter Kit from Chamaleon Antenna. On the other hand a “magnetic loop” antenna responds to the magnetic field and the flux through the loop – it can be thought of as a 1 turn secondary of a transformer, with the primary being the radiation source for the received signal. This is the handy tool that helped me decide what size loop to build in each case. The YouLoop is a passive loop antenna designed for HF reception, but also works well Apr 5, 2020 · This entry was posted in Accessories, Antennas, How To, News, Portable Radio, Shortwave Radio, Software Defined Radio and tagged Airspy, Airspy HF+ Discovery, Airspy Youloop, AM Passive Loop antenna, Homebrew Mag Loop Antenna, How to build a NCPL antenna, Mag Loop Antennas, Magnetic Loop Antennas, NCPL antenna, Noise-Cancelling Passive Loop Apr 13, 2020 · You’ll need a good antenna to do that, which is where this homebrew loop antenna for the shortwave radio bands shines. Jul 20, 2025 · basic notes on building longwire antennas for medium waves Magnetic Loop antenna Why is an Magnetic Loop antenna so special, this antenna is picking only the magnetic part of the elektro magnetic radio wave. 200 medium wave annular antenna until the sound from the broadcasting channel is clear and stable. It is extremely quiet, brings in the weak signals, and is probably only bested by a large yagi antenna. A typical magnetic loop antenna looks like this: Typically, magnetic loop antennas can be built from coaxial cable, hardline, solid copper, or aluminum tubing or ribbon. The antenna is the magnetic loop. This antenna has several advantages, not least being only 1 metre diameter! This loop relies on being horizontally polarised and receives only the magnetic wave, thus as most noise in the domestic environment is vertically polarised and electrical wave, it delivers low noise to your transeiver/receiver, which makes for nice clean listening. Typically, magnetic loop antennas can be built from… Aug 22, 2024 · I enjoyed Bill's article this month (W9WRP) about Magnetic Loop antennas. The document provides detailed instructions Jan 13, 2016 · Here is a great design and build instructions for a nice 2 meter SSB loop antenna. I always fully set up an antenna before packing it in a new pack just to make sure I’ve included all components. When disassembled the antenna easily fits in a suitcase or backpack. E. Jun 17, 2020 · Home > CB Antennas > Magnetic Loop Antenna Homemade Magnetic Loop antenna for 27 MHz Else known as Small Transmitting Loop or STL, this isn't a traditional "electric" antenna, because the "near field" is almost "magnetic". htmield (and not any electric field). Mar 10, 2020 · Again, apologies for any confusion. It takes me forever to complete some projects. The big advantage of this antenna is that the electric interference from the big city have no influence on the received signal The Loop Antenna - The ARRL Antenna Research - Click on Miniloops HF LOOP AND HALF-LOOP ANTENNAS in a FEW WORDS - by STAREC The Magnetic Loop Antenna - by Tony - ZS6GF, Daniel - ZS6JR and Dave - ZS6GS PA3CQR Magnetic loop antenna page - by PA3CQR 80 METER FRAME ANTENNA - by SM0VPO PACKING CRATE ANTENNA - by SM0VPO Here it is friends. Jan 12, 2025 · A magnetic loop antenna is a compact, efficient antenna that is ideal for portable operation or limited spaces and can be improvised inexpensively. It is similar to tuning a dipole antenna. Loop antennas have always fascinated me. Description Able to cover allRead More Jan 9, 2017 · Here is the final version of my 40m magnetic loop antenna using my homebrew hi-voltage variable capacitor. I use an older … Continue reading Feb 13, 2017 · Back in June 2015 I built a homebrew magnetic loop based on VK3YE Peter Parkers loop dimensions. Please tell me how to calculate and design it? Is it also possible to use a mag loop to receive MF bands? A magnetic loop antenna also has the advantage of performing well when close to or at ground level compared to a traditonal antenna which generally performs poorly unless mounted at a suitable band dependant height. Loop antennas (magnetic) are known to accomplish this. Mar 22, 2019 · The magnetic loop design leads to antenna which is tuned to a very narrow frequency range, giving good selectivity. If your antenna is low in frequency, then you shorten the element. So far stations have detected me at 50km distance with many dB to spare. Now we needed an antenna. I cut a notch in both pieces of wood Jul 24, 2015 · Magnetic Loop Receive – Below is a view of the panadapter, notice how there is a pronounced peak where the antenna is tuned and as you deviate from that the received signal gets weaker (click image to expand). "I LOVE MY LOOP" "I Sure Did" An All Band 80 Meter Loop Project by John Reisenauer, Jr. 6MHz and 50MHz 20 - 10m Since august 1998 I use a magnetic loop antenne in the AMA-3 style. Jul 20, 2025 · 40 meter band antennas projects, a curation of 233 useful links about 40M Easy Delta Loop for 50MHz Build your own delta loop antenna for 6 meters band Omni-Directional antenna for 6-Meters Experimental omni-directional antennas for 6-meters band 6 Meter 3 Element Quad Starting from an original project for a 2 element quad antenna for six meter band, ve7ca presents the dimensions for a 3 element version. Oct 31, 2015 · This entry was posted in Antennas, Articles, News, Videos and tagged Homebrew, Homebrew Mag Loop Antenna, Mag Loop Antennas, Magnetic Loop Antennas, Tony (K3DY) on October 31, 2015 by Thomas. 1 day ago · 40 meter Loop antenna projects, a curation of 12 useful links about 40 meter Loop Antennas Here we take a look at the principles of a transmitting magnetic loop and then test a magnetic loop built by 2E0ERO. Yesterday, I decided to pack the F-Loop in my larger Spec-Ops Brand T. A multi-band antenna for peanuts. Carolina Windom – Construction details for a 20m (66ft) off centre fed ‘Carolina Windom’ multiband antenna. Outdoors was out of the question. I also saw Tony VK3CAT’s AlexLoop and thought it would be fun to try and make my own as an interesting alternative antenna for SOTA. It is designed for portability, and can be assembled or disassembled in about a minute. May 29, 2021 · Want to explore the 6 meter band, but don't want to start with a big Yagi? Then build your Hula Hoop Halo antenna. The DIY receiving antenna system consists of two 30-inch diamond-shaped loops spaced 20 feet apart, offering superior directivity compared to traditional vertical arrays. I live in a fairly urban area of Mountain View, CA with limited Jul 10, 2007 · Finally, a Loop for 10m. Many articles and video segments have been produced to demonstrate the use of magnetic loop antennas for amateur radio use. A Portable Multi-Band Magnetic Loop Antenna Described here is a simple multi-band magnetic loop antenna designed for 20, 30 and 40 metres, but by changing the overall length of the wire coverage of other bands is feasible Jun 22, 2019 · 6m Delta Loop Tuning Tuning the 6m Delta Loop is relatively easy. The main capacitor was beefed up but a different value which covered 18 MHz and above. It needs more comparison testing and the loop circumference might Nov 2, 2017 · So hacker of note and dedicated amateur radio operator [Jeri Ellsworth (AI6TK)] has started a video series devoted to building a magnetic loop antenna for the 160- and 80-meter bands. Short-wave receivers are always coping with weak signals and theyRead More jeri ellsworthhas started a video series devoted to building a magnetic loop antenna for the 160 and 80 meter bands the first video included after the break is an overview of the rationale behind a magnetic loop. Not quite as good as the W6LVP but it is better below 500KHz and probably equal up to 18MHz. Well, its time to hav… Mar 17, 2019 · The magnetic loop design leads to antenna which is tuned to a very narrow frequency range, giving good selectivity. For /p and SOTA the antenna should at least cover 40m and 20m. VHF Antenna in a Lunchbox - The Magnetic Loop on Two Metres by VK5BR From time to time we have written about the small transmitting loop antenna, sometimes called the magnetic loop because its radiation is generated only from its magnetic fhttp://rfanat. More information on loop antennas is available in Links section below. My original plan was to make it a fixed capacitor out of a length of coax for a singl… HOMEBREW / DIY - Let's talk about magnetic loops Just a couple of things to know to get your mag loop working. more Claims for this antenna state that it should function from 20 kHz to over 50 MHz, with nulls approaching 30 dB deep. built for quick assembly in the field or up mountains. May 30, 2018 · I recently saw that my 80m (3. Plans, links, schematics and friendly conversation is encouraged. I was impressed and since I use that my Sparton a lot, it deserved it’s own loop. Small Single Turn Magnetic Loop The small single turn magnetic loop (SSTML) antenna consists of a single winding inductor, about 3 feet (1 meter) in diameter, and a tuning capacitor. This article details the design and construction of a homebrew two-element loop antenna array for HF reception. The COKE-LOOP by PY1AHD ALEX Frequencies covered 15 / 17 and 20 meters Complete constructions details on Amy(AI6ZU) and I build a magnetic loop antenna for 160 and 80 meter amateur radio. ru/Loop_ant/VHFLoopAntenna. The video show us how to build, test, and use this compact, "stealthy" antenna. 6 meters Quagi Oct 25, 2022 · Yesterday, I decided to pack the F-Loop in my larger Spec-Ops Brand T. Here’s how to make the “Super” antenna. Jul 4, 2024 · I need to build a magnetic loop antenna to receive HF bands from 3 MHz to 30 MHz. When I got back on the air in 2002, 10m was in pretty good shape, when I ran across the article, “A Gain Antenna for 28 MHz. The feedpoint is at the bottom of the loop. January 1, 2012 By Dan KB6NU 32 Comments I used two lengths of PVC pipe to form the horizontal elements of this simple, 10m loop antenna. I was using my “test” loop (which is shown below) to see how my Sparton radio would perform. Article by W2BRI After many requests by Ben W4KSY*, someone I consider to be my loop mentor, I decided to post a page about my 80 meter magnetic loop. 2 days ago · Helically Loaded Magnetic Loop Antenna A considerably shortened Magnetic Loop antenna with performance of a single conductor text book magnetic Aug 5, 2024 · The tutorial of a DIY magnetic loop antenna for the amateur radio band featuring a remote tuning system implemented on Arduino with a RC servo. by Peter Parker VK3YE – first appeared in Amateur Radio, December 1997 October 1997’s Novice Notes looked at compact antennas that amateurs use to operate from confined locations. If this video interests you, please do subscribe!Part 2 is here: https://www. At the moment I have a magnetic loop dedicated to the 80M band. Jan 18, 2019 · There is suprisingly little desgin information on the multi-turn magnetic loop antenna. Magnetic loop antenna for 160 - 15 metres Another item on this website discussed antennas that amateurs use to operate from confined locations. 2 days ago · 40m Magnetic Loop Antenna 40 meter Magnetic Loop antenna plan Small Loop antennas or Magnetic loop antennas are radio antenna made in a loop shape, and behaves electrically as a coil with a small radiation resistance. 5 MHz 160cm x 120cm The antenna is tested in the field. . The G4ILO Wonder Loop is an inexpensive, easy to make magnetic loop antenna that covers five HF bands, 40m through 15m. The noise has reduced a lot and listening to the low bands is not annoying anymore. youtube. Shop magnetic and wire/PVC frame small loop HF antennas and cross loop antenna kits at DX Engineering! Magloop (Magnetic Loop) antenna with quiet receive noise floor rated at 100W PEP SSB on 10-40M and optionally VHF, UHF, and 40-80M at 20W PEP SSB. QRP Indoor Loop For QRP operation with limited space, a compact and lightweight 'magnetic' loop antenna was built. Jul 18, 2025 · Inexpensive wideband amplified mag loop receiving antenna on eBay David reviews and compares the MLA-30 magnetic loop antenna Reviews of the low-cost MLA30 wide band HF magnetic loop antenna MLA30 Magnetic Loop Antenna Review and Comparison Inside the MLA-30 Active Loop Antenna Home station 100 watt magnetic loop for 40 metres If you live (or are staying) in a really confined space and can't even accommodate a temporary fishing pole mast and thin wire then a magnetic loop is probably your next best choice for HF. ← Our Galaxy Expressed as Jazz Black Cat Systems’ 22 Meter Band Part 15 CW Beacon Kit → High Voltage Butterfly Capacitor for Loop Antennas - TA2WK (TA1LSX): Hello Everyone, Wanna build a magnetic loop antenna? Magnetic loop antenna is a compact efficient antenna that is ideal for portable operation or limited spaces and can be improvised inexpensively. The image below shows the information on my loop above, at 14MHz with 50w RF. A key characteristic of magnetic loop antennas is the very narrow bandwidth when tuned, so that if you QSY a few kHz you need to retune the loop. Home-made antennas can greatly improve the performance of AM and FM radios, short-wave receivers, and scanners. Just follow Kevin's simple instructions: "This is my 6 foot diameter magloop for 80 and 160 meters. In order to Aug 28, 2021 · In this new video, Mike Harwood compares 4 different active mag loop antenna at various frequencies up to 52MHz using two SDRplay RSPduos which allowed simultaneous spectrum snapshots of the 4 loops in action with real signals. The objective of this article is to disseminate some practical information about successful homebrew loop construction and to enumerate the I have long been intrigued by the magnetic loop antenna and have been reading widely on the Internet on the subject for some time. znm dmbccucz jcoqje cllsrz dijvaz pnm wptqvat afqcnn yso wkujw