30 meter loop antenna. I'm thing about using this mobile antenna: ProComm PCF30 - 30-Meter HF Fiberglass Ham Stick Antenna Black 500-Watt This antenna is horizontally polarized and should be mounted as high as possible but works well at low heights of 10-30 feet. This time I fed the antenna at the apex (the top) instead of feeding it at the bottom. 5 inch copper pipe and each side will be 3. Feb 11, 2024 · Calculate loop antenna dimensions easily with the Antenna Loop Calculator. The chart covers all ham bands from 160 meters through 2 meters only. small Discover the power of Mla 30 loop antenna! I tested this versatile antenna and was blown away by its impressive range and clear reception. The antenna I'm thinking of putting up is a homebrewer full wave loop with a 4:1 voltage balun connected to a Xiegu G90 pushing 20 Watts RF through 50ft of DXE 400 50ohm coax with a loss at 30 MHz of 0. Jul 7, 2025 · Find Wire Antennas 30 meters Wire Antenna Band and get Free Shipping on Most Orders Over $99 at DX Engineering! A full-size Delta Loop, fed in the bottom corner, is a good low angle radiator and is great for working DX. The yagi plays the role of a ground plane, while the tower plays the double role of reflector and grounding "rod". au RF shop Test Instruments, RF Coaxial Cable, RF Coaxial Connectors, Coaxial Attenuators, Supplier in Australia, melbourne Delta Loops for HF "You'll love lower noise and relative gain over a dipole's ears" Stephen D. Explore a wide range of antenna designs and projects for 10-meter band operation. Other reads that I liked — Delta Loops for HF by W5SDC, and 28 and 24 MHz Limited Space 3/4 Wave Delta Loop by KL7JR. There is a […] Manager Reviews Home Reviews For: Palomar Engineers 160 Meter Loop Category: Antennas: HF: Verticals; Wire; Loop eMail Subscription Registered users are allowed to subscribe to specific review topics and receive eMail notifications when new reviews are posted. For that article, I bought the very popular AlexLoop Jul 10, 2007 · The ten-meter band was rarely open, so I wasn’t really motivated to finish and put up this antenna. Currently I have a dipole at about 38 feet, which is as high as I can go with the top wire and the trees that I use are no more than 48 80-10 Meter Loop Antenna System with 4:1 Balun and Choke Combo, 3-30 MHz, 500/1500/5000 PEP Option Sep 17, 2025 · Bicycle Rim Antenna for 20 Metres A small transmitting loop antenna for 20 metres using a aluminium bicycle wheel rim. A flat top Full Wave Loop has a feed point impedance of about 150 ohms. The Delta Loop is not only a great transmitting antenna but a low noise receiving antenna. 84 feet 12 meters: 40. Sep 17, 2025 · Discover a variety of 80 meters antennas for amateur radio operators on DXZONE. Otherwise it requires modifying an existing antenna or putting up a new one dedicated for the band. Over a period of several months prior to the completion of my attic antenna suite I operated with a borrowed AEA Isoloop antenna. 29 feet 15 meters: 47. com FREE DELIVERY possible on eligible purchases Dipole Antenna Calculator The measurements below are for building a simple Dipole Antenna. Formula of Delta Loop Antenna Calculator The calculation formula for determining the total length (L) of the Jan 4, 2020 · I discovered something called a Beverage-on-ground or BOG antenna. The Wire Size can range from 16 AWG to 12 AWG. Let's Build an EFHW Antenna If you attended Field Day 2022, you may have been one of the students that learned how to build an end fed half wave Antenna and actually got to build one and take it home. As with any antenna, lengths should be cut longer than formula results and then trim as needed for best swr. 1Mhz but 91% efficient at 28Mhz. It is easy and inexpensive to build, similar to a G5RV but performs better on 20 meters. In free space, the loop with the highest gain, how ever, is the loop with the shape that encloses the largest area for a given circumference. The calculator provides comprehensive measurements including leg lengths Dec 19, 2015 · 7 Amazing Delta Loop Antenna projects for the 40 meters band. com. This represents a difference of about 6dB or 1 S-Unit. The larger the wire, the wider the bandwidth. Propagation-wise it more closely resembles the 40 meter band. I just let the jumper wire hang down. I then used an MFJ > antenna analyzer and began shortening the cable length 1 foot at a time > until I found the 50 ohm point. It's one feed line eliminates the need for multiple antennas to cover the HF bands. 5 days ago · Endfed 20/30 Mtr Antenna Article with detailed pictures of an endfeed antennna for 20 and 30 meter band End fed halfwave antenna and matching unit One is an EFHWA for 20-40 meters, and the other is a matching unit for the antenna by n0lx The versatile end-fed wire Benefits and limitations of an end feed antennas. Definition A full wave loop is, as the words imply, a continuous loop of wire or other conductor approximately one wavelength long, usually with the two ends of the loop connected to the feedline. Explore DIY and commercial options to optimize radio communications. They are quieter than a dipole or a vertical, have a broader bandwidth and will usually out perform a dipole antenna. The dipole worked pretty well as most resonant antennas do; however, after considering some other alternative wire designs I decided to try a full wave Delta Loop. Jul 24, 2019 · Most old timers or skilled antenna builders will tell you there is $60 worth of parts in the $250 antenna and that you should just hunker down, get smart, and build one yourself. Loop antennas have been popular with 80-meter DXers for more than 30 years. RockLoop Antenna The RockLoop Antenna is a compact multiband portable and indoor antenna suitable for QRP operations on the 10, 14, and 21 MHz bands. Depending on how you choose to configure your antenna, you may get excellent low angle radiation, high angle radiation or some mix of the two. 1 MHz, it is between the 40 and 20 meter bands. 5 on 40m, 5 on 20m and 10 on 10m) and is installed between 30 to 40 feet in the air. 40 to 41 meters - 132 to 135 ft. Compared with long-line antennas, local radiated noise suppression of up to 30 dB. Recommended height is 40 feet or more at highest point, but higher is better. The classic sloper antenna is a top-fed 1/4 wave vertical antenna sloping down and away from a tower. To achieve specific performance characteristics like So, my "longer" loop is about 1. C. That’s what I’m calling it. But the repeating resonances at 2 MHz intervals would have detracted from its performance. In the first couple hours of having it up I was able to hear stations I could not hear before. Fully assembled, ready to go! Installation instructions for Model DX-ULTRA DX-Series - Monoband Dipoles Full-size dipoles utilizing the Delta-C Center Insulator with built-in Arc-Plug® Surge Suppressor. Antenna Length Chart in Feet and Meters22-Jun-2007 09:30 AM 6 days ago · Multiband delta loop by DL2HCB A 10-20 meters coverage delta loop antenna. In conclusion, if I could only put up one antenna, it would be a 160 meter full wave vertical loop for omni-directional multi-band capability and a little gain to boot! We would like to show you a description here but the site won’t allow us. Unlike many END FED antennas on the market, this one does not require the Antenna Tuner to operate. Find HF Yagi, HEXX Beam and Rotatable Antennas 30 meters HF Beam Antenna Bands and get Free Shipping on Most Orders Over $99 at DX Engineering! Dual-band Loop Antenna for 30m - 40m, Amateur radio antennas are critical components in any ham radio setup, serving as the interface between the transceiver and the electromagnetic spectrum. I modelled the tower as a long This page explains the loop antenna and provides a calculator based on the loop antenna formula. 1 wavelengths, where the current is approximately constant around the loop. The gain is around 4 dBd on 40 mtrs, but it will seem much higher due to the very low angle, radiation Apr 10, 2024 · 80-10 Meter Horizontal Delta Loop Antenna for Field Day Greater Norwalk Amateur Radio Club April 10th, 2024 Steve Dick, K1RF Jul 11, 2020 · Building a Delta Loop Antenna For The 30M Band, part 1A Hawaii-based Amateur Radio Antenna Blog focusing on the theory, design, and use of homemade antennas. Resonant loop antennas have a circum ference of 1 λ. Nov 28, 2023 · Theory of Full Wave Loops last updated 28 November 2023. This means that if the base wire of the antenna goes from north to 20 meter small transmitting loop: small footprint(on average the radiating element is about 3' in diameter and 3 to 6' off the ground from the bottom of the loop), narrow bandwidth, and gain of around 1-2 dBi. 1-16 of 145 results for "30 meter antenna" Results Check each product page for other buying options. Helical loop antenna for 20 meters A Helical Loop Antenna for the 20-meters Band Portable Magnetic Loop Antenna Version 2 A simple multi-band magnetic loop antenna designed for 20, 30 and 40 metres, made from 16 feet of RG58 Antenna covers all bands 80-10 meters + 30, 17, 12 meter WARC Bands Any antenna will cover all bands with a tuner. The feed point Mar 1, 2023 · Buy GOOZEEZOO K-180WLA Shortwave Radio Active Loop Antenna 100KHz-180MHz Full Band Radio Antenna LW/MW/SW/FM/VHF 20dBi Magnetic Loop Antenna（10 Meters Feeder: Radio Antennas - Amazon. 2m / 27ft and a coil for the 30-meter band. Inspired by the mini-X-Q design, a modified 10m delta-loop was built, enhanced with a 1/4 wave shorted stub for 28 MHz using 450-ohm ladder line. The 40m Loop antenna Ed, VK2JI (This antenna is also known under the names “Sky Loop” and “DX-Buster” and is very similar to a horizontal delta loop). Mar 5, 2021 · Construction of Wire Loop Antennas last updated 4 August 2023. I have used mine that is just shy of 400 feet long on 17, 20 and 15 meters with good results. It enables easy adjustment for resonance by removing or adding wire. Delta loop wire lengths at mid-band 10 meters: 34. Sep 3, 2025 · 30 Meter Band Antennas 30 meter antennas Trending Links W5GI Mystery Antenna The W5GI Mystery Antenna is a multi-band wire antenna that covers 80 to 6 meters with low feed point impedance. My thought now is to use 2 30 meter mobile antennas and make a vertical dipole. Home-Made Magnetic Loop Antenna for 30 Meters A "magnetic loop" antenna, so named because it responds primarily to the magnetic rather than electrical component of a radio wave, is a very small (relative to wavelength) single-turn loop tuned to resonance with a series capacitor. The following is an article which I wrote and was published in the February 2013 edition of the Central Coast ARC “Smoke Signals” magazine. 【Loop Antenna Receiving Method】By rotating the antenna, the antenna's dummy point is aligned with Aug 7, 2024 · The larger the wire, the wider the bandwidth 30 Meter Vertical antenna The 30 meter band 10. The exact shape of the loop is not particularly important. Scaled-down versions, say 75% of a wavelength may also work fine if you don't have the room for a full-wave or longer antenna. I noticed a tremendous difference. In conclusion, if I could only put up one antenna, it would be a 160 meter full wave vertical loop for omni-directional multi-band capability and a little gain to boot! May 25, 2024 · One of my long-term experiments involves receiving on HF. The key feature of a magnetic loop antenna is its ability to generate a strong magnetic field within the loop when an RF current flows through it. Listed under the Antennas/30M category that is about 30 meter antennas. This is the best way to feed any loop, at least this has worked best for me. Others may use different methods that work best for May 5, 2015 · This is an End-Fed Half-Wave (EFHW*) antenna for 80/40/30/20/17/15/12 and 10m bands. Jan 16, 2010 · 80 meter loop structure display This 80 meter loop is actually 86 meters, or 282 feet of wire. Sep 9, 2025 · Explore a variety of online antenna calculators for designing and calculating antenna dimensions. Find links, resources, and guides for building, optimizing, and using 10-meter antennas. 26 to 27 meters - 85 to 88 ft. 7 meters from tower centre and 6 meters high. The Balun matches the Balanced Antenna into the Unbalanced Dec 5, 2019 · eHam. At 10. We’ll cover how to use the calculator and the formulas behind it. By rotating the antenna, the virtual point of the antenna is About this item 【Excellent Upgrade Version】Loop Antenna can help reduce noise and improve SNR. this antenna is an easy one day construction project it was made out of common number 12 stranded electrical wire read more about swr reports and home brewing details . I ended up cutting back 18 feet of cable > to > get to this point. This portable shortwave indoor loop antenna is a simple kit that includes all the necessary kits. The question always is, "How does is work?" This antenna works as a Full Wave Loop on 80 Meters and also works as a 2 wavelength open loop or Bi-Square on the 40 Meter band. For disassembly, disconnect one side from the insulator and then roll the antenna as a single wire. 5. Also I haven't ruled out putting a mag loop for 80 meters but I'll have to figure out the tunning capacitor. I am finding this loop is > performing very well. Shop HAM radio antennas, antenna systems, and antenna components from the best: DX Engineering, Cushcraft, Hy-Gain, Hustler, COMTEK SYSTEMS, Diamond & more. Aug 7, 2017 · Hi I need a 30 meter antenna that is cheap and does not require guys. The direction of fire is broadside to the antenna. This type of antenna radiates most of its signal at very high angles, which is perfect for using Near Vertical Incidence Skywave (NVIS) propagation to contact stations up to about 500 miles away on the 80 meter band. About a month ago, though, noting the more frequent band openings, I finally decided to finish the antenna. We'll make it out of . The feed point Use this online calculator to determine the length of a full-wave loop antenna from the frequency. Find resources, plans, and guides for building and using multiband antennas. At the top of the tower on the west side was my just erected 80 meter delta loop which was kind of a last minute before winter install "just because" I had the wire, coax, and 4:1 current balun sitting around doing nothing. net is a Web site dedicated to ham radio (amateur radio). 80 meter loop structure display This 80 meter loop is actually 288 feet of wire. A 171-Meter Loop Skywire Antenna Created by Heinz Stucki, KB8VIP and Mary Stucki, KC8SXL on 2025-01-30 Mono Loop Antenna• The insulator in the horizontal leg near the left is an option for convenience. Learn how to construct a great 20 metre delta loop for your suburban house by following this simple guide. Do I have your attention now? Radiation Patterns A full-size Delta Loop, fed in the bottom corner, is a good low angle radiator and is great for working DX. Since my 6m Delta Loop seems to work pretty well I decided to build one for the 30m band to be used with my Spiderbeam 12m mast. 5 feet long. Dec 29, 2023 · When the antenna is horizontally polarized, it should be mounted as high as possible, but it can work well at low heights of 10-30 feet. Aug 29, 2023 · The MLA-30+ Max loop antenna is a popular broadband antenna ideal for shortwave listeners (SWL) and amateur radio amateurs (HAM) in urban balconies, rooftops, etc. Modular design, easy to install in limited spaces such as balconies and roofs. Sep 3, 2025 · Explore a comprehensive directory of loop antennas for amateur radio operators. Ahh, the good old quarter wave ground plane! This calculator can be used to design a Quarter Wave Ground Plane antenna, with radials. This page presents an online calculator tool for determining the dimensions of various HF wire antennas operating between 1. Roofspace Antennas How to build a roofspace antennas and get them to work. This antenna works on 17, 20, and 30 meters, with the best bandwidth on 20 meters. 5 days ago · Explore a comprehensive directory of multiband antennas for amateur radio enthusiasts. Except for the delta loop all of the antennas had been up in our brutal weather for years. This variation of the basic horizontal, halfwavelength flat top dipole has proven to be a simple, effective antenna suitable for both home and portable use. An In-Room, 80-Meter Transmitting Multiturn Loop Antenna 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 eHam. Mar 27, 2019 · What about 30 metres or 10 MHz? That's easy if they have a dipole with tuned feeders and a good antenna coupler. When calculating optimum lengths, we must use the velocity factor of the feedline. Loop antenna lengths are based on using 1005 / FMhz = total loop length in feet. Discover new antenna designs and setups. I have modeled a 30 meter dipole, a Delta loop and a Quad loop (the loops 'hung' in a vertical plane). 5Mhz~30Mhz. As we did with Loop Antenna Theory, we will them into the following types: small receiving loops, less than about 0. The sloper's feed point is anchored high above ground near the top of the tower on which sits a grounded HF yagi beam antenna. motor to remotely tune the capacitor. In this review, he compares the MLA to the Wellbrook ALA1530-LF and a 30 foot square ground loop antenna. com FREE DELIVERY possible on eligible purchases This antenna is horizontally polarized and should be mounted as high as possible but works well at low heights of 10-30 feet. 1 MHz, is between the 40 and 20 meter bands, in terms of propagation, it is more similar to the 40 meter band eYou. Nov 15, 2011 · Home-Made Magnetic Loop Antenna for 30 Meters A "magnetic loop" antenna, so named because it responds primarily to the magnetic rather than electrical component of a radio wave, is a very small (relative to wavelength) single-turn loop tuned to resonance with a series capacitor. This Delta Loop kit is meant to give you significantly better performance (and brodband performance) over your dipole antenna. We built a detailed EZNEC model of the planned I run an 80 meter loop antenna about 30 feet in height and have previously been using a coaxial balun common mode choke of 25 turns of RG-213 on a 6 inch form attached about 6 feet under the corner feed point of the loop (configured in a triangle). They range anywhere from $300 to $500 according to advertising on the Internet and in catalogs. Nov 30, 2024 · Loop Antennas last updated 30 November 2024. That places the apex at about 15 meters, about 8 meters below the lower 5-element yagi of the 20 meter stack. The bandwidth on 17 and 30 is quite small but usable. Shop magnetic and wire/PVC frame small loop HF antennas and cross loop antenna kits at DX Engineering! Sep 3, 2025 · A 10-20 meters coverage delta loop antenna. For permanent Feb 23, 2021 · The MLA-30+ plus loop antenna is a popular broadband antenna, great for short-wave listeners (SWL) and amateur radio enthusiasts (HAM) to enjoy medium-wave and short-wave in the city with limited space such as balconies, rooftops, etc. At 20 meters and above they don't hear much, but I believe that if a preamp were to be placed at the feedpoint they would probably respond well right up through the 10 meter band. Users input their desired resonant frequency to obtain precise measurements for four popular antenna types: standard flat-top dipole, inverted Vee, quad loop, and equilateral delta loop. It aids in determining the total length (L) of a delta loop antenna in meters, based on the desired wavelength and the operating frequency of the antenna in megahertz (MHz). 30 Meter Vertical Antenna The 30 meter band is pretty interesting. I had about 200′ of straight length to work with, and gave that a try on 160 meters. Sep 3, 2025 · Delta loop antenna plans for the 40 meter band, a curation of 20 useful links about 40 meter Delta Loop Antennas 40 metre Horizontal Loop Antenna. The supplied Youloop 2 meter cable [for example] is sufficient to keep the antenna away from the magnetic interference of a computer or a tablet, and has very low loss and parasitic capacitance. Replacing the 5v bias-t with a proper 12 volt low noise bias-t with a ultra low noise power supply helps significantly as well. WHY USE A FULL WAVE HORIZONTAL LOOP INSTEAD OF A DIPOLE ON 160, 80, 75, 60 and 40 METERS? (Rev 6/2017) A dipole antenna just will not work unless it is at a sufficient height. I have also spent hours reading various posts and web articles on the 2 loop antennas. This is a little long for 80, 17 and 12 meters, but a little short for 40 and 30 meters and just right for 20, 15 and 10 meters. Use it for half-wave, magnetic, delta, and multi-turn loop antennas with support for 40m, 80m, and more. It is characterized by a loop of wire that forms a closed circuit, often shaped like a circle or square. (A radial field is not required for this antenna – the author has built several Delta Loop antennas for 40m without radial fields, and they all performed very well). Connect Balun to the coaxial loop. Mar 26, 2009 · A Loop Skywire is 492 feet around, with supports that's about 1/10 of a mile! Now, the good news, you can fit a full sized 160 meter antenna in a puny 100 by 60 foot lot, without loading coils, exotic matching systems, huge capacity hats and very short, very expensive commercial antennas that barely work on 160 anyway. Culp, W5SDC After having marginal results on 17 meters using my Alpha-Delta DX-EE with a tuner, I put up a resonant dipole. horizontal loop→ Constructed and designed primarily to be most efficient on the 6 meter band, this antenna will also tune all the way up to 20 meters with reasonably good results when used with an antenna tuner. Note the lengths for the new 60 meter band frequency to be effective March 5, 2012. Second Feb 18, 2012 · For example, my 30-10 Meter loop is 8. There is one guy threading the delta loop since the lowest guy station is at ~30' (9 m). Jan 2, 2024 · The Delta Loop Antenna Calculator is a valuable tool used in designing and constructing delta loop antennas. 30-32 Another loop for 20- through 10-meters using a novel "trombone slide" arrangement as a tuning capacitor. The formula for figuring a full wave loop is length = 1005 divided by the frequency in megahertz. Feedline Lengths: The feedline length is also an important part of a "friendly" antenna design. It has a mechanical length of 8. I also cannot have a wire dipole. Shop Limited Space Small Loop Antennas at DX Engineering. Ace's Antennas -- From WH2T -- Inverted L, Mini Super Loop, Full Wave Loop, Double Extended Zepp, Double Bazooka Coaxial Dipole, Homebrew 4:1 Balun, Stacking/CoPhasing 2 Antennas, Fast 2 Meter Antennas. 5 days ago · I read Yet Another Delta Loop Antenna, authored by WB3AYW, an experienced antenna specialist, and I was getting mentally prepared for my antenna building journey. They are quieter than a dipole or vertical, have a broader bandwidth, and slightly outperform a dipole antenna. One of this summer's projects was to put up a full-wave 80 meter horizontal loop antenna, sometimes called a "loop skywire". US December 14th, 2006 (Used with permisson from WB3AYW) This article is not intended to be a complete construction, or "build it" adventure, but is intended to give you some ideas and good working lengths and spacings for use on various HF ham bands including 2 meters, and eHam. This is a true unbalanced antenna, with a feed impedance of around 50Ω and therefore a great Sep 14, 2025 · 40 meter band antennas projects, a curation of 233 useful links about 40M Brief History (cont’d) Since McCoy’s experiment, many hams have built highly performing “electrically-small” loops meter for HF operation – see examples next page) (diameter ≈ one With proper materials and construction techniques, the performance of small-loops becomes comparable to full size dipoles It can be used with an antenna tuner as a transmit antenna up to 30 MHz. I found the loop to be an effective antenna when operated horizontally (horizontal dipole mode) at a reasonable height above Aug 13, 2024 · Formula source: Chapter 7. This is a circular loop, which is difficult to construct. I ended up cutting back 18 feet of cable to get to this point. Ideal for amateur radio enthusiasts. What is a Loop Antenna? A loop antenna is a type of RF antenna constructed from a wire loop. 35 feet Some call it a Skywire Loop Antenna, some call it a W0MHS Loop Skywire Antenna, nowadays it's called a Full Wave Loop Antenna but it still is a force to be reckoned with. This depends on the spacing of the wires of Ladderline (true Openwire). The antenna is designed to be fed with 50 or 75 Ohm Coax Cable of most any length with a Balun. Sep 3, 2025 · This document by W4HM explains the construction and usage of a 160 meter balanced coaxial receiving loop antenna, which can be easily adapted for the 40 and 80 meters bands. This magnetic loop antenna covers the HF band from 10-30 Mhz. If we make the loop much longer or shorter, we would end up with the antenna being unsuitable for some of the bands. Can be tuned from 14 MHz to 30 MHz. Transmitting on these bands works well with a Cobweb antenna for 10m to 20m and a wire with a CG-3000 automatic tuner for 30m to 160m. Even if you managed to get it to Mar 12, 2023 · Luckily, the company that made my 10-80 end-fed half-wave antenna provides a wire drop-in replacement for 15/30-meter bands. DESIGN & THEORY This reference book is a compilation of articles and reprints that have been printed in DX news over the years past concerning the theories and operations of the Loop antenna. May 3, 2022 · About this item Upgraded version: MLA30 Plus Active Loop Antenna for 0. Smaller types are sensitive, particularly to the electromagnetic field’s magnetic component, so these antennas are known as magnetic loop antennas. This loop is nice because is it so light and easy to place pretty much anywhere. The loop antenna efficiency is mainly determined through its dimensions & the operation frequency. Jul 24, 2015 · A Nationwide Emergency Communications Network for Preppers & PatriotsMagnetic Loop Antennas for The Radio Operator with Limited Space pt. 2 Home Made HIGH POWER Magnetic Loop by Popeye In part one of this series, I covered the use of one brand of commercially available, small transmitting loop antennas, also known as ‘magnetic loops’. Place a 1:1 Balun on the Antenna end of the Feedline. The radiating element is a quarter wave (λ/4) and the radials are 12% longer. 【High Efficiency】When receiving traditional antennas, you can find weak signals that are submerged by noise. Sep 3, 2025 · This tunable magnetic loop antenna is my contribution to the well established art of amateur loop making. Enter the Chinese made MLA-30 MegaLoop and damnit this is my blog so it’ll from here on out be known as the MAGALoop. Unfortunately I cut it too short. For those that were not able to do so, this… Apr 23, 2023 · So for the price the MLA-30+ is a half way decent antenna once you get rid of the horrible coax and upgrade to a better loop material. 34 to 35 meters - 111 to 115 ft. Jul 30, 2025 · In this model, the delta loop is 1 meter from tower centre and the bottom is 5 meters high -- as built, the antenna is 0. The ALT-930-2M Triple Loop Antenna is designed based on the Loop Antenna System (LAS) described in Annex C of CISPR 16-1-4. This antenna normally has about a 3 DB gain over a 1/2 wave center fed dipole. 3 days ago · If you want the 20 meter loop to play well, get it in the air at least 25 feet to 30 feet. Let's build a loop for 20 meters that exhibits around 65% efficiency. It is an effective antenna for short-wave listeners (SWL) and amateur radios (HAM) for 0. Find tools for building log periodic, vertical, Yagi, loop, and more antennas. There are a few basic construction methods for wire loop antennas: stiff wire (mostly self supporting) strung wire (on a framework of some sort) hung from trees, masts, or other supports None of these need to be particularly difficult to build, although multi-element versions at HF can be mechanically complex. The drawback of most commercially available loop antennae is the price. Feb 20, 2025 · That is why we are selecting the 10-80 Meter Alpha Loop Antenna as the best magnetic loop antenna. Click on the link to connect to the product you need. I am trying to better my situation on 30 meters, my favorite band. Loop antennas come in various sizes and shapes, with very different characteristics. I then used an MFJ antenna analyzer and began shortening the cable length 1 foot at a time until I found the 50 ohm point. Is this worthwhile? At the current phase of the solar cycle there are times when 30 metres is open but 40 metres isn't. These loops can take various shapes, most commonly circular or rectangular. Each time I changed my QTH, I had to re-adjust the length of the jumper. Apr 5, 2020 · To use the NCPL antenna without a preamp, it is recommended to keep the length of the cable below 10 meters. Delta Loop is a three-sided antenna suspended high in the air by vertical supports, such as tall evergreen trees. 25 wavelengths on 80 meters (2. Reviews For: AEA Isoloop 10-30mhz Category: Antennas: HF: Verticals; Wire; Loop eMail Subscription Registered users are allowed to subscribe to specific review topics and receive eMail notifications when new reviews are posted. 8-30 MHz. Putting a Beverage antenna on the ground, theoretically allows the use of a much shorter antenna than the more common Beverage mounted about 7 feet above the ground. A magnetic loop antenna is a compact and efficient design used in radio frequency (RF) communication and reception. 0 SWR and no > splice points at all along the entire cable. The loop's size is typically And if you follow the steps, you should have yourself a nice loop antenna that works well and fits at almost any QTH. The antenna consists of three mutually perpendicular large loop antennas having diameters of two (2) meters. After using 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. 5 ft in circumference and 23% efficient at 10. Sep 3, 2025 · Coaxial-Cable Trap Dipole An Attic Coaxial-Cable trap dipole for 10, 15, 20, 30, 40, and 80 meters The 40 meter Stealth Vertical Vertical antenna for 40 meters band Stealth Multiband Vertical A vertical antenna for 40 and 80 meters band, using a telescoping fiberglass fishing pole. These have a broadside null and maximum radiation off the edges. 5Mhz~30Mhz Excellent directivity helps reduce noise and improve SNR Can be easily installed on balconies, rooftops, and other places, featuring compact size. This antenna’s characteristic will make them less vulnerable to interference & electrical noise, so it is very beneficial for applications like . 8Db per 100 feet. After relocating, DL2HCB designed a multiband loop antenna to cover 10-20m with an open-wire feed for impedance matching and compact installation. Palomar antenna products include complete antenna systems, feed line chokes, feed line to antenna matching transformers, static bleeders and other accessories. Quarter-wave matching section lengths are also calculated. The antenna delivers east Dr. Connectors will accept either coaxial cable or balanced line. The only current commercial supplier of a similar loop is MFJ Enterprises . Sep 3, 2025 · Discover a comprehensive directory of 10 Meter Antennas on DXZONE. Sep 13, 2024 - Construction Info For 30-Meter Magnetic Loop Antenna Feb 12, 2025 · eHam. A Home-Brew LOOP Tuning Capacitor QST November 1994, pp. Find resources, plans, and projects for building and using loop antennas in your ham radio setup. Explains how to build an effective YET ANOTHER DELTA LOOP ANTENNA (Using an *isosceles triangle*) by Leonard WB3AYW 10/31/06 Originally Published by ARRG. 2. Both metric and English units of measurement are supported. Aug 28, 2015 · The location we chose for the 40m Delta Loop already had a radial field under it, and we decided to take advantage of this to try to improve ground quality under the antenna. Large Loop Antennas (ResearchGate) Variables: L is the side length of the delta loop antenna (meters) f is the operating frequency (MHz) To calculate the side length of a delta loop antenna, divide 300 by the product of the operating frequency and the square root of 3. Here it is. Moved PermanentlyThe document has moved here. Upgrade your setup today! Mar 17, 2020 · Buy MLA-30 Loop Antenna Active Receiving Antenna 100kHz - 30MHz for Short Wave Radio: Radio Antennas - Amazon. Why Alpha Antenna is the best brand for magnetic loop antenna? Top of our reasons for choosing the Alpha Antenna as our best magnetic loop antenna brand is their consistency level. The exact length for resonance depends on the diameter of the conductor and the shape of the loop, but typically it is slightly longer than a Sep 17, 2025 · Discover a variety of 80 meters antennas for amateur radio operators on DXZONE. In fact, you can even add 6 and 2 meters if you like! This antenna is inexpensive, easy to build and will give you a solid signal that will be well heard! Nested Loop Antennas - Nested Delta Loops Without Any PVC Support! The three, nested delta loops for 20, 15 and 10 meters hang beautifully with one overhead support and just one guy on each 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. This calculation assumes that the speed of light is approximately 300 million meters per second. The multiband dipole I describe in another article could have another wire added for 160 Meters. Deployment can be accomplished in approximately 5 minutes. A good alternative is to use a three to five hundred foot beverage a as they work very well on 30, 40, 80, and 160 meters. Apr 24, 2013 · 4 Foot Diameter Magnetic Loop In Operation As my mag loop projects progress, I’m learning a lot about building them and using them. Stiff Wire antennas Free Shipping - Bushcomm Horizon Multi-Band Loop Antennas with qualifying orders of $99. For a while I used antennas for other bands with a tuner to get on 30. Sep 18, 2019 · Many thanks to SWLing Post contributor, David Day (N1DAY), who has completed a thorough review of the MLA-30 loop antenna. These are a few ideas to get started. Reception in my densely populated area on the lower bands is challenging, often facing up Continue reading Reception comparison: vertical vs. Oct 22, 2013 · The latest addition to my growing antenna farm is a 30 Meter halfwavelength sloping dipole. So now I have my 30 meter loop with a 1. Homebrew projects with pictures, drawings and models to get inspired for your next 7 MHz antenna. There are usually four radials, three being a minimum, but you could use up to six. The Alpha Antenna Loop without the Booster Cable installed is a 100 watt 10-40 meter antenna, per the manufacturer’s specifications. To determine the approximate circumference in feet of a full wave loop antenna use the formula: 1005/Freq in Mhz = length in feet. A low-profile, compact antenna made from copper tubing and using a small D. They receive quite well up through the 30 meter band, but at the higher frequencies they behave more as omnidirectional antennas. hlqjc gmqwecc ihyqjf dyvzkp rnf kayivo vtf dicazt osblzm ociq