DIY Magnetic Loop Antennas Resources
Magnetic Loop Antenna design and resources for radio amateurs
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A indoor magnetic loop antenna that covers 20 17 15 12 and 10 meters band with a 3 meter lenght of 22 mm copper tube by G4IZH -
A Magnetic Loop Antenna is a resonant circuit employing a large inductor and adjustable capacitor. Efficiency depends on the inductor's size relative to wavelength. A Magnetic Loop Controller adjusts antenna tuning in real-time, syncing with Transceiver VFO movements. It communicates with various radios, enabling seamless tuning. Stepper motor resolution ensures accurate capacitor positioning, crucial for antenna performance. The Controller's firmware offers diverse functionality, enhancing user experience and antenna efficiency. -
The RockLoop Antenna is a compact multiband portable and indoor antenna suitable for QRP operations on the 10, 14, and 21 MHz bands. The page provides detailed information on the design and usage of this antenna, making it a valuable resource for amateur radio operators looking to improve their setup. The intended audience is amateur radio operators interested in building and using antennas for QRP indoor operations. -
Also known as Magnetic Loop Antennas, by AA5TB. Excellent article on construction tips and tecniques of a Small Loop antenna -
Remotely tuned 1m diameter HF loop antenna for 7 to 29MHz by G8JNJ -
Magnetic loops are a compromise antenna and performance will be down on a full size-wire antenna particurlarly on lower HF Bands. This article compare this magnetic loop with a full-sized wire antenna on 80 meters by VK3YE -
A magnetic loop antenna for 144 mhz, two meter band -
Receiving loop antenna for top band. This antenna allow to reduce noise on both bands. The stand alone 80m loop is approximately four feet in diameter. And made of light weight material. Which makes it ideal for portable use or you can mount it above a pre-existing vhf antenna, and due to it's small size it is quite rotatable. -
PA1G loop antenna for 80 meters band, in dutch -
This note describes a relatively small, but efficient, loop antenna initially created for portable operation. With suitable modifications, it can be adapted for fixed station use. In this age of CC&Rs, an antenna similar to this may very well be the answer to your problems. Have a look, be inspired, get out the torch / soldering iron and create your own version! -
Magnetic loop antenna by GM3MXN -
If you find external wire antennas obtrusive for amateur radio or short wave listening, then this is the antenna for you, is just 1 meter diameter -
Able to cover all frequencies between 3.5 and about 10 MHz, the loop described here is directional, does not require a radial system, and stands just 1.8 metres tall. The antenna can be put together in a short time and is cheap by Peter Parker VK3YE ex VK1PK -
A well documented plan to build a magnetic loop antenna for Shortwave Listening, includes photos and diagrams. -
To build this antenna you need a lot that is at least 100 feet across. Antenna covers all bands 80-10 meters + 30, 17, 12 meter WARC Bands -
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 -
Article on a small magnetic loop antenna for forty meters band by Ben Smith -
Active Loop Converter for the LF Band by Lloyd Butler VK5BR originally published in Amateur Radio, July 2000) -
Article on using loop antenna in very low frequencies -
This article by OK1FOU describes how to build a relatively small loop antenna which can be placed for instance at the balcony. It is especially suitable for a two band antenna covering two adjacent amateur radio bands (10/14 MHz, 14/18, etc.) -
Article on radiation patterns of small loops, equivalent circuits of loop antenna, small loops as receiving antennas, ferrite loops -
This antenna was designed to meet the requirements of a light body worn small magnetic loop covering all the frequencies continuously from 7 MHz to 29.4 MHz -
A small transmitting loop antenna for 20 metres using a aluminium bicycle wheel rim. -
Documents and schema on how to build a Magnetic Loop Antenna fo 80/30 mtrs -
The Coke Loop is a Small Magnetic Loop Antenna tuned by a trombone-style variable capacitor made with standard soda cans -
This magnetic loop is 78cm diameter, with the smaller Hertz loop for tuning. Feeding is by gamma match. -
A german documento on magnetic loop antennas -
DL7JV Christian report his direct experience on magnetic antennas -
A magnetic loop antenna working from 30 to 15 meters with 100W -
Due to my job I have top travel a lot around the world, in order to find a way of making radio I decided to build a Magnetic Loop after some comments of other colleagues for working between 20 and 80 meters mainly. -
Antenne Cadre Project by F5NGZ, description by F5TZA in french -
Portable magnetic loop antennas - G4TPH Mag-loop antennas Reviewed in PW and RadCOM, Both QRP and QRO, Portable. The only Magloop on the market that is fully portable -
This article describes a loop usable from 7 - 21 mHz, using half inch copper tube 3 feet in circumference -
Ham Station description of HB9ABX and CE3CWF, magnetic loop antenna details, Free Energy devices, Pictures from Switzerland and Chile. -
Pictures and antenna plan of a magneti loop antenna working in the range 6.650 7.250 Mhz in french -
picture and dimensions of a coax loop antenna centered at 51.490 MHz -
Magnetic Loop antenna for broadcasts band reception -
A Helical Loop Antenna for the 20-meters Band -
A considerably shortened Magnetic Loop antenna with performance of a single conductor text book magnetic loop. -
A small transmitting loop antenna for 14MHz and 21MHz. This is an antenna you might consider if you have limited space, by Lloyd Butler VK5BR Based on material originally published in Amateur Radio, 11 1991 -
A Small Transmitting Loop Antenna for 14MHz and 21MHz. This is an antenna you might consider if you have limited space, by Lloyd Butler VK5BR -
HF loop and half-loop antennas in a few words -
Local and DX contacts from tight spaces, it works from 40 to 17 meters -
VK3YE magnetic loop antenna plan that cover 7 Mhz to 20 Mhz and shortening loop can work on 21 Mhz. -
HF receiving loop antenna, an easy-to-make receiving loop antenna for HF -
The antenna was built to be used for shortwave listening with a Tecsun PL-660 radio receiver. Later it was used with Yaesu VX-6 handheld transceiver and with Yaesu FT-817ND for shortwave listening. -
Magnetic Loop Antennas for The Radio Operator with Limited Space, a two part series of articles on how to construct a magnetic loop antenna, including directions on selecting high voltage tuning capacitor -
How can you vastly improve your Medium Wave reception? its quite simple really, all you need is 120 foot of wire, a few lengths of timber and an old tuning capacitor with which you can build the answer to every DX'ers prayers, a tuned loop antenna. -
An easy guide to "How to build your own magnetic loop" for 20 meters -
The concept of the "Hula Loop" came after many years of building medium wave loops of varying size, shape and performance. Usually these loops are constructed on a square wooden frame, with wire being wrapped around the periphery -
It is more or less omni-directional, and horizontally polarized, it's just a dipole folded around on itself, and supported at the far (open) end with a plastic insulator. -
A Mississippi Style 40 meter magnetic loop made from available aluminum conduit, this antenna will not disappoint by Ken Holland, K9FV -
This receive only loop covers a frequency range of about 5 MHz to 22 MHz and is built from readily available parts. -
Car mount magnetic loop antenna plans from 3.5 MHz to 7.5 MHz, LA6NCA, Larvik, Norway -
Calculating the length of a resonant square quad loop -
Full-wave loops are very popular antennas. They are especially useful on 80 and 40 meters where they perform well at modest heights -
Calculates resonant frequency of a loop antenna, correcting for distributed capacitance. -
A quick 50 mhz loop antenna construction details -
HB9MTN loop motor control software. For motor control, either Centronics, RS232 or USB ports can be used, for CAT-Control the RS232 or USB ports. -
A page about a Magnetic loop antenna project for the 40 meters band, includes nice pictures and history of construction -
Magnetic loop antenna for 10-30 MHZ, 3.5-10 MHZ, description, construction details, homemade. -
An home made magnetic loop antenna winner at Florence hamfest 2014 by IU3BRK -
A transmitting magnetic loop antenna that can cover from 80 to 20 meters band with a lot of experiments on coupling tecniques, and a pictures by N4SPP -
Why is an Magnetic Loop antenna so special, this antenna is picking only the magnetic part of the elektro magnetic radio wave. The big advantage of this antenna is that the electric interference from the big city have no influence on the received signal -
Although a magnetic loop antenna(aka small loop antenna) is very compact, its efficiency is close to a half-wavelength dipole if carefully built. -
Schematic diagram and description of a magnetic loop antenna that works from 10 to 20 meters band, made from junk -
Free windows program to calculate magnetic loop antenna.This small loop antenna calculator allow to determine capacitance and voltage based on Loop circumference, desired resonant frequency, conductor diameter and the operating power -
Magnetic Loop Antenna for 20/15m with Remote Tuning by George Szymanski -
If you have space constraint at your QTH for a HF antenna, you can try contructing this HF magnetic loop antenna for 40-20 meters bands -
Drawing and plan for an HF magnetic loop antenna -
A presentation about magnetic loop antennas, includes components, differences among small loop and resonant loops, advantages and electrical characteristicsof mag loop antennas -
A complete guide to magnetic loop antenna construction, with analysis of multi-turn and single-turn magneti loops, and and insight on choosing the optimal capacitor, or homebrewing your own butterfly capacitor -
A magnetic loop antenna calculator made with an excel sheet that run also with open office, let you design mag loop antenna dimensions by AA5TB -
Pictures and calculated values for this home made magnetic loop antenna for the 160 meters band by HB9MTN -
A light and portable magnetic loop antenna with improved bandwidth and performance by HB9MTN -
A magnetic loops for HF pedestrian mobile project by VK3YE -
Evolution of a project of a small magnetic loop resonating from 80 to 40 meters -
A Magnetic loop antenna project for 80 meters band by OH7SV, with detailed pictures and the Magnetic Loop Calculator in an Excel file -
An homebrew HF Magnetic loop made with 2m length of 6mm diameter copper pipe formed into a near circle as the low loss inductor, a short length of coax as a capacitor,a short length of mains cable, again as a fixed tuned capacitor, a tunable 365pF air spaced capacitor, and a small Jackson C804 airspaced variable with a small 3-35pF trimmer in parallel -
A figure-8 double loop antenna -
A monster magnetic loop antenna for 160 meters band. This Magnetic loop is optimized for 1840 Khz + 50 Khz. PDF Article published on La Radiospecola 10.22 -
A motor tuned magnetic loop antenna that can work from 14 MHz to 30 MHz -
The 40/60/80 is a portable loop that covers 80 meters with a high degree of compromise -
A custom made 80 meter loop antenna. Reports on usage and tips to build the support. -
Magnetic Loop antenna for 20 to 80 meters band using home made butterfly condensator kit -
Loop antenna picture gallery -
The Pocket Loop is a small magnetic loop antenna designed for a carry anywhere operation, it disassembles in 33 centimeters pieces that can be carried even on an attach handbag. -
This loop it is small and light enough to carry while operating, it disassembles into small but rugged pieces that fit easily in a backpack or gym bag, and it can be tuned from 14 MHz to 30 MHz. This tunable magnetic loop antenna is my contribution to the well established art of amateur loop making. Can be tuned from 14 MHz to 30 MHz. -
HF pedestrian operation using loop antennas by PY1AHD -
A simple multi-band magnetic loop antenna designed for 20, 30 and 40 metres, made from 16 feet of RG58 coax cable. The performance is impressive for its size but not meant to replace a Yagi. The antenna features a tuning head, matching unit, tuning capacitors, band change switch, and matching transformer. The feedpoint is at the bottom of the loop. The document provides detailed instructions on assembly and operation. -
antennas experiments by David Reid PA3HBB G0BZF -
A 27-28 Mhz quad loop antenna by Bernard Mourot F6BCU in french -
A magnetic loop made just of wire. Suitable for portable usage and for QRP operations. -
A wide range antenna made from a toy published on a 2010 Radcom article by M0ZSA -
A Small Transmitting Loop Antenna for 14MHz and 21MHz. This is an antenna you might consider if you have limited space by Lloyd Butler VK5BR -
Experience and practical use of magnetic loop antennas, by N0HC -
Article about magnetic loops, construction notes and diagrams -
Picture and reference links for STL Small tumed loops antennas by DJ3TZ -
Air conditioning soft copper tubes are perfect for loop construction. If you want to try a loop you must have an air variable capacitor or a vacuum variable capacitor. Article by PY1AHD -
An invisible magnetic loop antenna mounted under a table by PY1AHD -
NRSC AM bandwidth measurements with the loop antenna -
This ia a home built Magnetic loop antenna which was used by G3BGR, indoors on 7,10 and 14Mhz. The basic idea was in Radcom 1986 -
K6SGH introduce the hamloop antenna L7 series -
A small magnetic loop ready for a hand held walk and talk operation by PY1AHD -
An Experimental, High-efficiency, Graphic-Tunable Magnetic Loop antenna and loop controller in a 52 pages PDF presentation with drawings and pictures -
The performance of a small magnetic loop can be improved constructing it larger, thicker or both. The antenna is covering from 12 Megahertz to 32 megahertz and adding a 156 Pico farads ceramic capacitor it resonates on the 40 meters band. by PY1AHD -
Loop antennae have been used from ELF to UHF since the beginning of radiocommunications. At low frequencies, the main problem for loop antennae is to have enough sensitivity; the antenna being very small respect to the wavelength the collected energy is also small. To increase the output level the loop may be made resonant, so loosing it%u2019s intrinsic aperiodic characteristics. -
Plans to build a three or four foot box loop for the AM broadcast band, will tune from 530 to 1710 kHz. -
The magnetic loop on two metres -
VHF magnetic loop atenna by ON1DHT -
VHF Antenna in a lunchbox. The magnetic loop on two metres band Lloyd Butler VK5BR -
A 80 meters band loop antenna plan by VU3GAO -
Bill Rinker, W6OAV, handcrafted this compact magnetic HF loop from copper and pvc plumbing supplies, a 12 volt motor, and some teflon sheets. He's had great reports with it. -
Amplifier, vacuum tube, receiving beverage loop vertical and transmitting antenna system technical information radiation resistance, EH antenna, noise,receivers, and information on keyclicks. -
A QRP 900 grams hydraulic tuned small magnetic loop antenna by PY1AHD Alex. -
Interesting review about active magnetic loop antenna Wellbrook ALA 1530 and 330S by ON4SKY -
VHF Antenna in a Lunchbox, The Magnetic Loop on Two Metres. The two metre magnetic loop is a compact antenna which can easily be hung up under the eaves, the carport, or any other place where space is limited including indoors -
An home made magnetic loop antenna project using a military surplus 150pf capacitor by KF5CZO -
This PDF document provides a detailed guide on designing an 80m loop antenna. The content covers the construction, setup, and tuning of the loop antenna, offering practical tips and considerations for optimal performance. Whether you are a beginner looking to enhance your radio communication capabilities or an experienced operator seeking to improve your antenna system, this resource serves as a valuable reference for building an effective 80m loop antenna. -
The idea behind this antenna was to use multiple conductors in parallel to reduce the resistance losses in the antenna , and thereby improve the efficiency.For a given magnetic loop antenna, doubling the number of conductors from one to two will typically increase efficiency by about a factor of two. There is a limit, and beyond three or four conductors further increases are small, and may not be worth the bother. -
A Small Transmitting Loop Antenna for 14MHz and 21MHz, an antenna you might consider if you have limited space, Based on material originally published in Amateur Radio, November 1991 -
Portable magnetic loop antenna that can handle 50W from 40 to 15 meters band by AB2EW -
This article describes a loop tuning system that automatically keeps a contest-band loops properly adjusted as operator hop around each band, made with Arduino -
The latest version of the K1FM-Loop is electrically similar to the previous one, but it is designed around off-the-shelf parts or, more generically, items you can readily order online. This antenna relies heavily on 3D printing. -
Chavdar Levkov (LZ1AQ) experimentally compared the performance of small wideband magnetic loops, focusing on their sensitivity and the “loop factor” M (A/L), analogous to the effective height in dipoles. By increasing loop area and reducing inductance—using parallel or coplanar crossed (CC) configurations—sensitivity improved significantly. Measurements at 1.8, 3.5, 7, and 10 MHz showed CC loops yielding up to 9 dB higher current than single loops of equal area. Numerical simulations confirmed M as a reliable predictor of loop sensitivity, with CC loops offering the best performance for a given area, while parallel loops minimized volume. Practical recommendations and design tools were provided for optimizing loop configurations in real-world applications. -
A page describing how to setup a magnetic loop antenna with the DIY Magnetic Loop Starter Kit produced by Chamaeleon Antenna. Includes a video and a detailed instructions to setup. -
A directional active loop receiving antenna system by J A Lambert G3FNZ article published on Radcom in november 1982 -
Amateur radio loop antenna project using a Comet CVBA-500BC vacuum variable capacitor. -
Here is a well documented plan of a 20m-10m compact magnetic loop antenna. Article includes lots of pictures and technical details published by KP4MD -
Basic magnetic loop antenna examples and loop aerials theory explained. This article inclued some interesting tricks on building magnetic loop antennas and an usefull excell sheet to help compute magneti loop antennas calculating power efficiency from 10 to 40 meters band