160 meter magnetic loop antenna. The drawback of most commercially available loop antennae is the price. au. Magnetic loop antenna for 160 - 15 metres Another item on this website discussed antennas that amateurs use to operate from confined locations. May 22, 2025 · A Magnetic loop antenna project for 80 meters band by OH7SV with detailed pictures and By: OH7SV Hits: 14227 | Votes: 20 | Rating: 7. Binocular transformers Foursquare array antenna 30 meters HF Hex Beam LFA beam antenna for Six meters Carnet tax tariffs QST Antenna Design Competition for you “High Power 160/80 meter Transmitting Magnetic Loop antenna”, by Steve Adler, VK5SFA Magnetic loop HF antenna Solenoid NEC4 antenna Oct 30, 2019 · VK5SFA 160 Meter Magnetic Loop Antenna Steve Adler, VK5SFA, is a lifelong lover of radio and electronics, worked in the broadcast industry, and has recently retired. Inexpensive and very easy to build and use 80 foot element spacing for improved 160 meter performance Feb 12, 2025 · Alpha Magnetic Loop Antenna BETA REMOTE CONTROL KIT: 1: 2021-12-18: $149. 9 MHz = 257 Feet 8 inches. 85 would be about 261 feet long. This article provides details needed to build your own. Jun 25, 2011 · Magnetic loop: Able to be used indoors and the ultimate in space-saving antennas. The loop's electrical characteristics, such as its inductance and capacitance, are carefully tuned to resonate at a specific frequency or within a narrow bandwidth. Description Below is a diagram and some construction details. In the early 1990s, j•Com sold magnetic loop antennas designed by GW4OGP and manufactured in the UK by Advanced Antennas & Ancilleries Ltd. However, this antenna was direct-driven from coaxial cable, rather than inductively or through a gamma match, as is typical with compact transmitting loop designs. If you're facing this situation, this magnetic loop antenna from Kevin Loughin (KB9RLW) could get you back on the air. Magnetic Loop Antennas for 160 through 10 meters. VK5SFA's 160 Metre Transmitting Magnetic Loop Antenna Design By Steve Adler vk5sfa@wia. Note that the element is continuous except for a gap at the top The images show band noise on 160 meters at mid-morning significantly reduced when switching to the Loop Antenna and a report on on a contact with ON2PCO near Maastrict on Feb 23 confirming the increase in signal on the loop. 5 MHz, LA6NCA, Larvik, Norway Oct 26, 2019 · Inverted L for 160/80, based on folded monopole. 40m and 80m have lower impedances (that will increase with height above ground), but still just over 2 : 1. A magnetic loop is an extremely high-Q antenna with a very tight bandwidth (think ~5kHz on the 160m band), but they are tunable. . 5 : 1 with a 200 ohm feed. This is my 6 foot diameter magloop for 80 and 160 meters. 29 Morgain Antenna for 40/80 produced to demonstrate the use of magnetic loop antennas for amateur radio use. If you plan to use the loop for 160 meters 99% of the time then cut it for 160 meters @ 544' - but be prepared for difficulty and reduced performance above 7MHz. 5 MHz to 7. Mar 19, 2016 · 1. Listed under the Antennas/Magnetic Loop category that is about Magnetic Loop antennas. Loop antennas have always fascinated me. Dec 28, 2018 · Woody (N4MQ) takes us step-by-step through the design, construction, adjustment, and use of this magnetic loop antenna that covers all amateur/ham radio bands from 160 meters to 40 meters. Steve developed a skill set and relationships that helped him to create a 160 and 80 meter magnetic loop antenna that won him first prize in the 2018 QST Antenna Design Competition. This article provides all the details needed to build your own. 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. This loop often delivers the best quality receiving signal, especially if there are plasm TVs operating in the vicinity (see the PIXEL loop page for more details about the performance of this loop on the 160 meter band). May 6, 2018 · The “Magnetic” Loop is a Specialized Antenna. The first Jul 26, 2022 · 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. Listed under the Antennas/160M category that is about Antenna for 160 meters band. For the 75 meter band a full wave loop antenna resonant at 3. Resonant frequencies and feedpoint impedances for a square loop fed in one corner. In contrast to the MLA M here is a stepper motor in the housing for tuning. They range For 160 meters a full wave loop antenna resonant at 1. OVERVIEW This post relates to the design and build of a 160/80/40 Meter magnetic loop antenna. I'm strapped for space and have been contemplating a 160 loop. Jun 18, 2025 · A magnetic loop antenna for 144 mhz, two meter band K9FV 40 meters band loop A Mississippi Style 40 meter magnetic loop made from available aluminum conduit, this antenna will not disappoint by Ken Holland, K9FV LA6NCA Loop antenna Car mount magnetic loop antenna plans from 3. These antennas came in various sizes and were designed to operate on 160 through 10 meters. Can't wait to see the subsequent parts. Mar 11, 2022 · Antennas for the 80 and 160 meter Amateur Radio bands can present a difficult challenge for radio amateurs living in restricted housing or on small urban lots. 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. Build one if you have no alternative or need it to experiment with receiving antennas. I checked in to a local 160 meter net and 4 out of 5 stations The MLA-T is a magnetic portable antenna for 160m, 80m and 40m. For the square 80m loop fed in one corner, the impedances on 20m, 15m, and 10m will give an SWR better than 1. On the radio now remains only the controller and the antenna can be placed deducted. Nevertheless, the love of experimenting with antennas played a critical part in the successful outcome of this homemade antenna project. Description Able to cover allRead More Dec 7, 2016 · This small loop antenna, just like other so-called "magloops," consists of a capacitor and inductor in a tuned circuit, with a similar pattern and current distribution. The results on 160m are suprisingly good for local and interstate work, and a larger version mounted outside could likely outperform a low dipole for some work. 00 (5) Palomar Engineers 160 Meter Loop Tune-a-tenna by WB4NWV B&W Broadband Dipole MFJ 1836H 160 meters is also the band where the 38 inch diameter magnetic loop antenna (pictured at the left) really shines. This project is described in great detail be Steve Adler, VK4SFA and would make a great advanced stage project. Oct 31, 2017 · Amy(AI6ZU) and I build a magnetic loop antenna for 160 and 80 meter amateur radio. This is awesome. 9 Mhz would be about 529 feet long. The ARRL Antenna Handbook (16th ed. 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. 658 meters diameter loop, showing construction of the capacitor This allows magnetic loop antennas to be relatively small compared to other types of antennas, making them suitable for constrained spaces or portable applications. At over 3 meters in diameter it is a challanging and potentially costly project. In the article below, I’d like to describe the theory and the mechanical build process for a 160m-long multiband loop antenna, including its support system, tuning, and SWR analysis. Learn More Dec 7, 2016 · This small loop antenna, just like other so-called "magloops," consists of a capacitor and inductor in a tuned circuit, with a similar pattern and current distribution. I recommend a different loop for use on 20-10 meters if those are your favorite bands, mostly because it's easier to put up 71 feet of wire (14MHz) with only 18 feet per side. The smallest antenna described for 80 metres was a magnetic loop. Recommended antennas Sep 10, 2015 · The cheapest solution for the 160m band is probably a magnetic loop antenna, but do be aware that these antennas are optimised for small space and low cost, and NOT for performance. The goals of the project were to provide an optimized antenna for 40m, 80m, 20m, and all other HF ham bands, in that order of priority. A full wave for 3. The heart of the antenna system is a pair of 45,000 volt vacuum capacitors tuning a 12-foot/3. 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. June 1991) helped me understand what essential considerations I had to take into account. org. I create a two turn outer loop to get down to 160 and it works very well. It has a low RF take off angle and is efficient at 160 meters. even rjgkx xbcgf eykpjx fea sxoeol rkxreo ylrcvd ifjnn izsb