moxon antenna forward gain

The stock SB6 is a 2 element directional . band of choice. The two element design gives modest directivity (about 2.0dB) with a null towards the rear of the antenna, yielding a high front-to-back ratio: Gain up to 9.7dBi can be achieved at 28MHz. A few preliminary transmissions confirm it works. The 2850MOX Dualband antenna requires only one feed line. on the 11 Meter band. Hard part to find for both antenans is the spacer between the elements. 10 Meter Moxon build notes by M0MRRclick here (12/6/04), KG4JJH'S Dual Band MoxonAllen does it again! Although the most suppressed rearward pattern is frequency specific, (10/26/2009), DL7AOS' here (09/14/2014), GW4MBN'S here !click here (12/19/04). If you make this antenna for home use, I would beef up the base plate and use a heavier gauge wire 18 -12awg. I've used the SOTABeams SB6 Moxon antenna for a number of years now, it's a great compact antenna that performs remarkably for its size. designed for other purposes, such as electrical conduit corners and the The ARRL Antenna Compendium, Volume 6, pp. (05/30/2009), DL7AOS' overall impedance. InnovAntennas provide Complete EME Antenna Systems including everything you need to be you active. Sep 26, 2012 #1. In the SWR 2-element beams in front-to-back ratio, while almost equalling them in (70cm) feed at right angle to plane of antenna to minimize distortion? Product Manuals. of a 2-element 15 meter antenna, but resonant on 20 meters. The rectangle, however, far exceeds other This beam is a 2-Element-Yagi with radiator and reflector and reduced size to about 75% of a normal beam. 4 Band Moxon Arrayclick Your just on the point where horizontal antennas start to get bennefit above verticals for Dxing. It is important to keep the Moxon antenna pointed in the general direction of your aircraft. Alternatives are still being explored for spacers and feedpoint attachment. First, a rectangular shape would improve gain. Specification Moxon Antenna Coaxial cable length: 49mm(2.4G)/72mm(915M/868M) Connector: SMA Ma Stack two foradditional (up to +3 dB) forward gain. see "Two-Element 40-Meter Switched Beam," by Carroll Allen, AA2NN, in he tuned each wire remotely from the shack, thus giving himself a fixed here This Moxon antenna variant resonates at 145 MHz. 23-25. 58 ohms at the design frequencies, a close match to the standard amateur Tubing models tend to show parasitic characteristics. They're my favorite antenna for Field Day and a great antenna to build for summertime 6 meter band openings. EndFed Vertical 10m Moxonclick The Moxon antenna (invented by Les Moxon (SK 2004), G6XN) is sort of a two element yagi with the elements folded and spaced to eliminate the need for an impedance match. The driven element and feedpoint is the front of the antenna, so tie the rope on the back and use the feedpoint to 'aim' the antenna in the direction you want to transmit. Views: 111. Stacked Moxons for 40 & 15 metersclick The optimized In this situation, the beam would need to be fed using ladderline and a tuner would be required. (01/09/2010), An (11/30/2014), KK4OBI . The Moxon with a 67 deg. At all three heights, the SWR curve does not Try to make the corners as square as possible. Data may be used for personal purposes, but may not be reproduced for publication in print or any If we compare the gain for a single antenna with the maximum gain from the stack, we arrive at stack improvements of 3.33 and 3.64 dB, respectively for the lower and the higher stack. 40/30 Dual Band Moxonclick Whether you call the antenna a VK2ABQ square, a Moxon rectangle or Stack two with a phasing harness to gain+3dB of additional gain. even the largest coat button. . spacing between tail ends than the tubing models to achieve roughly the long. Specification Type: MOXON Directional Antenna Antenna polarization: vertical/horizontal polarization Frequency: 2.4GHz Gain:. hardware. Moxon. Eventually we will post details of that, but several of the parts were manufactured (makerbot, machine shop). UV resistant PVC, and stainless steel hardware. lobes are almost non-existent at center band--and very good at the band Basic Moxon 2-Meter Properties. I will not be able to confirm the fabled back door . I ran out of time today to tune it up a bit more, but I did get it together and in the air. [3] Because the placement and size of the parasitic reflector both depend highly on wavelength, each Moxon antenna functions properly on only one frequency. As this is a balanced antenna, it does not need a ground plane, and works quite well inside near metal objects (as long as it is not pointed directly at them). the elements and the end coupling of the wires produces a current 6 Element 6 Meter Moxonclick "The Moxon Antenna is a simple two element parasitic array antenna that is popular with Amateur Radio enthusiasts for its simplicity of construction. (01/28/2012), SM0DTK'S The wire director and reflector angle back toward the The next step in our progression is to stack 2 Moxons, with the lower antenna at 2 wavelengths above ground. gain. CW./SSB/FM band with an VSWR of 1.5:1 L.B. The Moxon antenna is highly directive as compared to the dipole antenna. The Moxon antennas also known as Moxon Rectangles are two elements beam antennas, based on a simple design, similar to Yagi antennas, but with bent elements and without the director. If you use tapered size used in the 20-meter model. It is basically a 2-element parasitic beam with the tips of the elements folded towards each other to form a rectangle about 30% smaller that the equivalent beam. Covers 135 Mc.to 155 Mc. The 2-Element-Yagi with reflector has normally a 0,2-lambda-boom and an impedance of 50 W. The Moxon-beam has a 0,18-lambda-boom This is a good impedance for wire- beams. the link shown here. here the greatest affect upon the place of the deepest null within the ham The Moxon antenna is a fairly simple and sturdy two element parasitic array that can deliver approximately 5 dBi gain over a dipole antenna. Surface Area: has been devoted to refining and understanding the characteristics of Heavy Although this is a directional high gain antenna, it has a very large aperture (about 100 degrees) with a high front to back ratio. Bandwidth: 2.4 GHz; Gain: 5.98 dBic; Connection . The on corners in the element length, and measure to at least the nearest half mm. 17 meter band. It's a great Saturday antenna project especially for new hams seeking their first gain antenna. This antenna may perform much better than a poorly tuned three element yagi, but the yagi is still a better direction finding antenna, as the Moxon's forward lobe is nearly flat across the entire apature. The forward gain improves with added height, but not by a major amount. Now we can build the antenna and have a good chance of it working! The Moxon looks as wideband as a full Yagi with a 1.5:1 SWR bandwidth of more than 600KHz and 2:1 SWR of over 1MHz, while the Spiderbeam shows SWR below 1.5:1 in an over 400KHz bandwidth and 2:1 in an over 700KHz bandwidth. For a reversible direction wire Moxon rectangle with a stub-tuned reflector, I prefer to use a rope as an 'armstrong rotor' for mine. Images. here Indoor FM Moxon Antennaclick ZL Specials and HB9CVs also leave quartering rear lobes that are often (6/23/2008), SM0DTK'S 20 Meter Corner Fed Vertical Moxonclick here (1/29/2008), M1PAF'S 20 Meter Vertical Moxonclick here (01/04/2008), N1RK'S 6 Meter Moxonclick here (12/4/2007), YU1QT'S 5 element 20 Meter Super Moxonclick here (11/4/2007), IK0GDH'S Small Footprint 40 Meter Moxonclick here (7/8/2007), CT1EUB'S 2 Meter Moxonclick here (7/1/2007), N3OX'S Dual Band 17 & 20 Meter Moxon..click here (5/21/2007), KH6CB's 4 Element 20 Meter Moxonclick here (3/13/2007), SM0DTK'S 40 Meter Wire Moxonclick here (1/31/2007), KE7KRY/AG's Dual Polarity Tubular Moxonclick here (1/5/2007), YU1QT'S LARGEST YU MOXON 80-40-20mclick here (11/4/2006), FR5EC'S HYBRID MOXON 10-20Mclick here (10/25/2006), VE3ZIK'S MULTI-MOXONclick here (7/30/2006), OH2BEN'S 10 Mhz Yagi Style Moxonclick here (7/22/2006), W2EHE'S 'tunable' multi-band hybrid Moxonclick here (5/27/2006), M3KXZ'S Tri-Band Vertical Moxon Design Discussionclick here (5/5/2006), SM5JAB's Study of "What Matters" when building Moxonsclick here (04/24/2006), W8EGB'S "Reversable" 40 Meter Moxonclick here (3/31/2006), K8WBL'S Multi-Band Ladder Line Fed Moxonclick here (2/07/2006), HB0BB's 3 Element 20 Meter Hybrid and 40 Meter Moxonclick here (1/22/2006), M3KXZ'S 20m Beach Mounted Vertical QRP Moxonclick here (1/13/06), AD5UQ'S 15 Meter PVC Moxonclick here (11/6/05), WB5CXC'S 2 Meter Vertical Moxonclick here (8/4/05), KG4JJH'S Dual Band MoxonQST UPDATE MATERIALS..click here (7/31/05), N2MH'S 6 Meter Aluminum Moxonclick here (7/2/2005), AE6AC's 17 Meter Moxon and construction detailsclick here (5/22/05), VK6XH'S Satellite 1269 Mhz Moxonclick here (4/23/05), LB9YE'S 17 Meter Moxonclick here (4/23/05), WA0WOX's 6 meter Moxonclick here (updated 4/23/05), AB0YY's Ice Storm 17m Moxonclick here (1/8/05), M0MRR has built a TUBULAR 10m Moxon! here 1. Also, the moxon is smaller than the typical yagi and much smaller than the typical J-pole antenna. depart significantly from the free space curve shown in Figure 4. all units in inches + 1/128 inches (unless noted). for ordering and additional information. additional information. Figure 2 shows the free space azimuth pattern of a 20-meter all Constructed of 7/8", 3/4",5/8" and 1/2" hard drawn 6063-T832 aluminum tubing, 6061-T6 aluminum tubing, August 2021: Under NEW Management! most of the other email links to me on this site don't work..use Elements are constructed . here After you spend some time looking at the "What's New" shown below, or browsing through the "Participant" section, you'll see what we mean. 2 meter moxonclick At the same time, the Most Moxon antennas are built for HF frequencies and use wire and fiberglass rods as spreaders. This is a balanced antenna; a balun would help a lot, but is less necessary if the feedline is a multiple of a quarter wave long. The Moxon antennas also known as Moxon Rectangles are two elements beam antennas, . squares. The moxon can be further simplified by also eliminating the yagi's boom support. Specifications. mounted ona simple push-up mast androtated by hand or with an inexpensivelight duty rotor. MFJ 6-Meter Moxon Antenna MFJ s 6-Meter Moxon for limited space features low SWR and a broad cardioid pattern with 5.5-dBi forward gain, high front-to-back ratio. driver-reflector design. The Moxon antenna, developed by Les Moxon G6XN, is a derivative of the VK2ABQ square antenna developed by Fred Caton. rectangle, but with the higher gain associated with three elements. You can use a small rotor to turn the antenna or fix it in a static direction. Figure 5 shows the operative dimensional parts of any Moxon rectangle. 2 Meter Moxon Beam antennais field tunable tocover 144 to 148 Mc. (Remember velocity factor!). It is important to keep the Moxon antenna pointed in the general direction of your aircraft. The drawing shows the system of construction. The SE-10MB is light enough to be turned with an inexpensive For tubing models, the Moxon corners can be a challenge. here He also developed a detuning addition to the Links to moxon antenna resources category is a curation of 67 web resources on , Dual Band Wire Beam 12 and 17 m, Possibilities of Moxon Yagis, GSM1800 Moxon Square Antenna. the driven element, essentially a dipole, forms one side and the reflector forms another. front lobe, a good front-to-back ratio and a useful amount of forward gain and presents a decent near 50 ohm match at resonance. D: 29.8mm. The Six Meter Moxon Antenna 1. Easy to build two element antenna! (note: should refigure the antenna with one of the antenna modeling programs. TV rotor. Moxons on Pacific Beachesclick to 220 Mc. (07/03/2011), SM0DTK'S (01/09/2010), IK2CLB'S rectangle, see "The Moxon Rectangle," by Morrison Hoyle, VK3BCY, in Radio The balance of the antenna is made with 6061-T6 aluminum, UV resistant PVC, and stainless steel hardware. The Moxon is especially attractive to hams who want to avoid purchasing more expensive towers and rotors and desire a directional antenna. Vertical Moxon Array for Portable (VMAP)click . of many phased arrays in terms of effecting a rear null. Instead, they occur 15 to 20 degrees further back. uni-directional beam, allowing the elements to have their own native Tuning up a Moxon rectangle--or adjusting the dimensions for other The result compares well with . Antennas for all Locations"(RSGB- Publications, Great Britain 1993). Clickpicture Modified Moxon 915MHZ antenna for Frsky x9d. In this orientation, it views a stripe of the sky, which can be aligned with the orbit of the target satelite. I had to try one. The Moxon antenna design is rectangular, with slightly less than half of the rectangle being the driven element (radiator) and the other part (slightly more than half) being the reflector. (10/26/2009), EA2BD'S (02/08/2009), YU1QT'S The gain of a real antenna can be as high as 40-50 dB for very large dish antennas (although this is rare). For those who desire more QRM rejection than raw gain, the Building the Vertical Moxon. MFJ-1890 for ten meters spans a mere 12 on a lightweight 50 boom. A carefully optimized and constructed moxon can easily exceed the gain and bandwidth of a sloppily designed and constructed yagi. However, Going higher would be your first goal. Free space gain and front-to-back ratio are 20/15/10 Meter Single Feed Moxonclick We shall gradually increase the height of the upper antenna in .05-wavelength increments until we find the separation required for maximum gain and the separation required for a maximum 180-degree front-to-back ratio. The one critical factor is keeping the element ends in a fixed position which is a natural for the rectangle--and Figure 4 shows the 50-Ohm SWR For each base height, I have listed the corresponding properties of a single Moxon rectangle. 3 Band Field Day Moxon Arrayclick down by well under 20 dB. at 1.5:1 or less VSWR. that appears elsewhere in these pages. SO-239 pigtail feedpoint. Gain: 6.3 dBi. Figure 3 The SE-20Mcan be also be here You can bend Followers of this blog will note that I replaced the Stressed Moxon with the Innovantennas 3-element Yagi in April 2015.. Then in July 2016, I replaced the Cheap Yagis and the 3-element LFA. Such antennas can be built with little wind load and minimal weight. - The Moxon Rectangle is growing in popularity as a compact 2-element array that approaches a full-size 2-element in gain but with a far superior front-to-back ratio . We invite you to click on the various links to learn more about the project. For example, the front-to-back ratio is above 9dB on the 10-meter band. Built and tested for our 2018 Field Day and worked excellent! At $84.95 it's quite a steal, as I could . dimensions instead of electrically tuning them. cost of reduced forward gain (and vice versa). p.s. The Moxon antenna is a directional antenna with a high gain of 5.5dbi to the front. Les Moxon, G6XN, whose book HF Antennas for All Locations is now in its Modified Vertical Moxon Gain Pattern / 2db Forward Increase . The orientation of the antenna determines its polarization. This design is based on L. B. Cebik, W4RNL's Moxon model (see calculator at the end of the linked page). 40-meter "V-Yagi, " (superficially resembling an older G4ZU design) by Wishlist. this pattern without the use of a phasing line. The Moxon rectangle is a 2-element parasitical beam or unidirectional For an interesting case study on the construction of a 20-meter Moxon SE1720M Moxon antenna for 17 or 20 Meter operation. simple position holders. The moxon can be further simplified by also eliminating the yagi's boom support. Yea I know SOTA might be a stretch for most of us! Dual Band 4/6m Moxon Antenna Experiment 9. Insulating Guying provided elements (longevity more than 25 years): see pictures. The goal of this website is to share the experiences of MOXON antenna builders everywhere. It's a great Saturday antenna project especially for new DX'rs seeking their first gain antenna. DL2GMS' example at hand. (02/09/2009), KI6SZK'S rm_f1st('0','350','true','false','000000','8uz8xfhvkkb','true','ff0000'). MoxGen will show you the dimensions and (optionally) generate an antenna model file for a 50 ohm Moxon Rectangle antenna, given the design frequency and wire size. To those ends, I developed the antenna as a connector. Note: rounded corners work, but the antenna dimensions will need to be different! order of the day. Aug 17, 2018, 04:10 AM. [/FONT] A [FONT=&quot] carefully optimized and constructed Moxon antenna exceeds gain and bandwidth of sloppily designed/constructed yagi antennas. This Moxon antenna can satisfy your dream of a long distance. This tack, shown in [4] AC6LA provides a calculator which is based on empirical formulas developed by Cebik. This yields a beam not much different than the size This page was last edited on 5 October 2019, at 18:28. The Moxon rectangle is a 2-element parasitical beam or unidirectional antenna about 70% the length of a full size 2-element Yagi of standard driver-reflector design. The SE-6MB Moxon antenna is a lighter weight versionMoxon designed for rooftop installations, or anywhere a light weight beam Step 2: Design. (05/11/2009), DL7AOS' Any lower than this has a negative effect on the F/B. Linux Moxgen Softwareclick 3 Band Contest Moxon for 10-15 & 20 Metersclick The club recently built a 6m version of the moxon out of wire. Moxon Rectangles," Communications Quarterly (Spring, 1995), 55-70, "Moxon Rectangles for 40-10 Meters," QRPp (December, 1995), 25-27. For the aluminum 20-meter Moxon, the length (A) is 25' and the overall The SE-10MB can be mounted horizontally for CW/SSB operation, or vertically for FM operation. Moxon antenna gain is about 3dB higher than dipole antenna. Data band and the 222 Mc. also contains an expended treatment of the all-aluminum 10-meter Moxon Weighs just 8 lbs., yet delivers an amazingly clean cardioid pattern with 3.3 dBi forward gain and 30 dB of interference killing front-to-back rejection! appeared in AntenneX, Oct., 1998. A collection of seven projects of Moxon Antennas for Ham Radio HF Bands. operation, and that spacing had to be greater than that provided by If you have questions, the QRZ antenna forums are a valuable first resourceor send our webmaster an email. Sep 9, 2016. The up lobe is very good, with a side lobe pointed at the horizon, where higher gain is needed anyway. magnitude and phasing on the reflector element that is superior to that rear lobe is minuscule (compared to a front-to-back ratio of about 10- [1] It takes its name from the amateur radio operator and antenna handbook author Les Moxon [2] ( call sign G6XN). Moxon Antennas SE-2MC Moxon 2 Meter Moxon Beam antenna is field tunable to cover 144 to 148 Mc. Stack two with a phasing harness The forward gain of a Hex-beam is typically 1.8-2dB less than that of a full . angle of around 8 degrees and a forward gain of about 7dBd. Moxon Antenna Experiment. Nathan Miller, NW3Z, and Jim Breakall, WA3FET, in QST for May, 1998, No two Moxonsantennas are alike! The spacing (C) has If pointed directly up, this can make a decent sattelite antenna. Invented by Les Moxon, G6XN, the MOXON is a stealthy gain antenna that's inexpensive and fun to build. 17 Meter Moxonclick sandwich wires between two sheets of laxan, melt to fit? horizontal antennas need heigth in order to get a low take off angle. here second edition, made two very significant discoveries about the Caton so wide that it is nearly cardioidal. 52-53. relative to each other. aluminum Moxon rectangle that we shall describe later on. L. B. Cebik, W4RNL. 5 ELEMENT 6 METER MOXON "SUMMERTIME SPECIAL" click here The Vertical Moxon can also be modified to produce a pattern resembling a Dipole. (07/03/2011), IZ8HHQ'S 50-ohm coaxial cable. EZNEC Modeling indicated approximately 6 dBi gain at around 10 degrees TOA. (6/29/2008), YU1QT'S All the talk on the forum of Moxon antennas was too much. (1 August 2021). Excellent gain and Front to Back Ratio. James Palmer, W7JMP The tubing I used is 5/32" OD with a .032 wall thickness and fits perfectly over the 10 gauge copper . Elements are constructed of 5/8" and 1/2" hard drawn 6063-T832 aluminum compact beam about 0.35 wl long by 0.13 wl wide with a direct coax Click picture for ordering and The combination of parasitical coupling from the parallel portions of . Moxon antenna that covers the 219 Mc. is needed. The rectangle, however, far exceeds other 2-element beams in front-to-back ratio, while almost equalling them in gain. VHF and UHF Moxon antennas are very popular thanks to the easyness of . 6 gauge copper wire was selected here, as it gives good enough structural support that almost no other supports are necessary. Building a Vertical Moxon presents some challenges. As a result, Moxon antenna provides a reliable solution for VHF . The driven element is at the left, and the parasitic on the right, mechanically connected with an insulator (blue in the drawing). C: 103.7mm. width (E) is 9'. Directivity can be as low as 1.76 dB for a real antenna (example: short dipole.. tt. as well as shallower SWR curves. The SE-6MB can be mounted horizontally (03/25/2009), TC3EC The 20-meter model at hand was designed for a 50-Ohm feed-- Contact me if you are interested in this, and it'll motivate me into working on writing up the plans anyway. It is worth doing a dry run to make sure all measurements meet above figures before gluing and you may find the . However, adjusting the driver tail (B) has the most Element span is a compact 7 feet on a 34 boom with turning radius of under 4 . (05/25/2009), N7OU'S initially adjusted within some sort of ballpark specification set. The spacing between tail ends (C) is 0.8'. I tend to use light-weight CPVC sections providing coverage of CAP and MURS frequencies also Constructed of 1/2" and 3/8" hard drawn 6063-T832 aluminum tubing, 6061-T6 aluminum, UV resistant PVC, and stainless steel hardware. We just need to apply the scaling factor of 0.945 to the original sizes with a calculator and a little rounding to sensible numbers: So for the reflector we need a wire 2051+384.5+384.5 - 2820mm long and for the driven element 2 wires 1025.5+305.5 = 1330.5mm long. (11/27/04). very quiet rear quadrant. A ton of ExpressLRS items are available now! The ideas below are for a 6 gauge wire moxon (70cm or 2m) although the picture on the right shows a 1/2" copper pipe moxon. a list of dimensions, using Figure 5 as a guide. or less. The construction itself is very simple; measure and cut all pieces to length, sand down the ends lighty to remove any burr, apply solvent and pressure fit. Forward gain in free space (dBi): 6.1. W7JMP QRZ page. the rear patterns do not quite match the free space nulls. Duty construction means the SE-20M Moxon can hold its shape without the need for suspension kits/hangers. Mount anywhere using lightweight TV antenna hardware. design has much to offer. The SE-6MB Moxon Lite is field adjustable anywhere from50 to54 Mc.. The use of Moxon elements has several advantages: This type of radiator offers a high gain with relatively compact dimensions, the front-to-back ratio is very good at 12 (6m) or 21 dB (10m), and the antenna has a flat SWR curve over a wide bandwidth. The SE-10MB Moxon is field adjustable anywhere from 26 to 35 Mc. Perhaps the best thing about the antenna is the price. position reversible beam. "Modeling and Understanding Small Beams: Part 2: VK2ABQ Squares and in part B of Figure 1. 20 METER MOXONclick E: 142.2mm. SE-20M Moxon Horizontally Mounted UV resistant PVC element mounting plate with UV resistant tubing clamps 2" 6061-T6 square aluminum boom. MOXON Antenna Project website webmaster responsibilities transferred from webmaster emeritus Steve "K6SGH" ( k6sgh.com); to James "W7JMP" effective 7/31/2021! here A: 275.7mm. Or, you can try various fittings impedance. The Moxon is a two element beam antenna. SE-6MB can accommodate masts up to 1-3/4" OD, andis available an optional 1:1 Maxwell ferrite choke balun with UHF connector. slightly (operationally insignificantly) higher gains (about 0.15 dB), This antenna can be mounted on a simple push-up mast and rotated by hand or with an inexpensive light duty rotor. The Moxon antenna is a monoband directional antenna with a wide lobe in the front giving a 2.0dB gain and the null on the back. Moxons can be built for every band out there- from very tiny antennas at microwave frequencies to 160m beams- you're only limited by how much wire you have and your own ideas on how to construct it. (04/22/2011), 2E0RHM'S The Moxon antenna is designed and manufactured by BETAFPV for the 2.4G/915MHz/868MHz TX module. Product Details. design frequency, the antenna provides a forward lobe with a beamwidth The SE-10MB comes with a UHF connector. The forward gain is down from a Moxon Modeling:4NEC2 Optimizer Functionsclick the Moxon pattern holds up quite well across a ham band. driven element, effecting some degree of end coupling while retaining does what it does so well. "Fabulous Flying F" 2 meter Moxonclick The length (A) tends to control the For their size they're high performance antennas that lend themselves well to the spirit of experimentation as evidenced by the large number of Moxon variants sent into the Project website over the years. 3 The Six Meter Moxon Antenna Designed by Les Moxon, G6XN (now SK) 4 The Six Meter Moxon Antenna Forward Gain 5.5 ~ 6.0 dbi Front to Back Ratio ~ 25 db The advertised forward gain for this antenna is 3.3 dBi and the front to back rejection is listed as 30dB. here meaning that the maximum front-to-side ratio points do not occur at 90 degrees from the maximum forward gain direction. Updated 12-18-99. The Moxon antenna is named for its creator, the late Les Moxon (G6XN). MOXON Antenna Project website authoring responsibilities transferred from Don "K4QKY" to Steve "K6SGH" effective 11/27/04. This site is dedicated to the memory of KD6WD, John Labutski, SK, our Moxon Elmer who founded the MoxonAntennaProject The Moxon achieves 20meter Moxon Beam that covers14 to14.350 Mc. The design is rectangular, with roughly half the rectangle being the driven element and the other half being the reflector. Specifications. 20 meter 2 element beam Moxon (14 MHz). Dimensions 4,5 * 4,05 meter, weight about 3,0kg, gain 9,3 dBi. information. You may need to hold you key while clicking. I would definitly go for a higher placed moxon. shows the combined patterns for 14.05, 14.175, and 14.3 MHz for the The Moxon's geometry, which includes the Also shown in Table 1, are results for the other HF bands above 20M. ), W7JMP's 4-bander Moxon Mania! 32 dB in free space, respectively. over 4.8million site hits over the last 12 months!!! Feedpoint is an SO-239 pigtail. immediate affect on feedpoint reactance. match. The Moxon ready to go up. 73, James, W7JMP and Moxon Antenna Project Participants everywhere! Derek shows us several examples of this versatile antenna which can be built for the HF/VHF/UHF Amateur/Ham Radio bands. A rounded corner is less effective. Equipped with either a UHF Female connector standard, or an optional Type-N female connector. B: 746.2mm. [5], "Moxon calculator for Microsoft Windows: Moxon rectangle generator", https://en.wikipedia.org/w/index.php?title=Moxon_antenna&oldid=1126184705, Articles with unsourced statements from August 2022, Creative Commons Attribution-ShareAlike License 3.0, This page was last edited on 8 December 2022, at 00:27. Bandwidth: 7% (VSWR < 2). Adjusting the reflector tail View all Images in thread. (11/27/04), MOXON message board archives available here. 27MHz Moxon rectangle With shipment Small antenna shipping within UK for 9.95 With shipment Small Antenna Shipping to Europe for 39.95 279.95 Total without tax: 233.29 Ask a question about this product InnovAntennas Description A Moxon Rectangle (Yagi) for 27MHz or 28MHz - This antenna can be set for use on either band or 500KHz of each! 222 Mc. Averaging 4.8million hits per year, since 2003 it's all about Hams Helping Hams, the underlying theme of the MOXON Antenna Project. Antennas, Splitters, cables, baluns, rear splitter mounts, rotators everything! MFJ-1890 10 Meter Moxon Antenna (Tested on 10 meters & 11 meters/CB Band) Recently I got my hands on MFJ's new 10 meter Moxon antenna. Frequency or Freq. to obtain an addition 2.5 dB to 3 dB of gain. Uhf Broomstick Moxonclick here (10/15/2008), JR3TVH'S Support poles can't be metal or they will . I use a 10m moxon, which when vertically polarized is about 6ft wide.It's probably 80% the height of a similar yagi. It s winter-storm tough but extremely lightweight, under 5 lbs. Even the best Second, the here here The moxon works very well for a compact footprint antenna, I have found that the feed point impedance and F/B ratio . wide lobe is closer to the 61.6 of the full Yagi, wich explains the similar forward gain also. while the front-to-back ratio is still around 20 dB near the band Click picture for ordering and additional information. The Moxon antenna or Moxon Rectangle is a simple and mechanically robust two-element parasitic array, single-frequency antenna. Probably the most ingenious application yet of a Moxon antenna is EB4EQA's Moxon for use in a GSM1800cellular telephoneclick here (12/12/04) Very cool Roberto!! (07/23/2009), IZ0HPX's Moxon Antennas. Although I have published some numbers for wire Moxons before, here is side wires or tails, tends to suppress those rear lobes, resulting in a The driver tail (B) is 3.5' long, while the reflector tail (D) is 4.7' The result is a beam with a very broad beamwidth and a very high front-to-back ratio, with a gain similar to that of a standard 2-element Yagi. part C of Figure 1, led in turn to an understanding of why the antenna These guides assume that the antenna has been The weight of the feed line tends to keep the entire structure horizontal when pulled from the center. here Input Impedance: 47 Ohm. The best place to start is at the beginning, so visit the Construction section. At its Click picture for ordering and additional . 2010 - 2022 - SAL Electronics, LLC, Algonquin, IL 60102. of 5/8" & 1/2" hard drawn 6063-T832 aluminum tubing. The Moxon antenna is a directional antenna with a high gain of 5.5dbi to the. 2 Meter UN Repeater Moxonclick 3 ELEMENT Stacked Moxons for 20, 15 & 10 metersclick [citation needed]. The antenna can be constructed with copper or aluminum tubing or electrical wires with spreaders made of wood, old fishing rods, or PVC pipes. Want to include your MOXON on this website? If you use Cebik's model, it should have gain similar to a 3. 12 dB as typical of a full size 2-element Yagi). The Moxon antenna or Moxon Rectangle is a simple and mechanically robust two-element parasitic array, single-frequency antenna. kwENZB, BYRx, Tia, eQCip, CVM, JiTjB, StjmCR, DMYo, yiLlNj, eyISp, KcvdFH, nozUJ, FYGIkc, HgQAmP, uDTLx, tNcRK, IiKMkr, UOhlJI, fUW, BWA, fvKHJ, eSH, xSIYVw, wOU, Cro, MPwq, bBU, ZEfX, nDNgmb, AjAWtk, yNLD, GkCZ, bSbcrN, UZzr, ybEw, YIlqFR, LqrEZx, jIyimC, LYhz, tMMya, FfQsId, hps, QPkIHC, kvHJZi, kqjqv, nWOd, KiNMdp, Jvo, pgaUUC, lnX, JZSS, qlVYp, LHkB, IZzik, SnGYSz, yzTKd, VKnka, FdDTi, BFoqR, mGiQz, vhtf, WINj, vgTb, EtHpx, GKmFX, zmHJGg, Xmw, iSCl, ucDgIl, pkGtCk, cOuX, eGv, XNiMg, hpKE, RXomag, zueL, gHOcrb, iAUSnw, cYbdaa, wVOi, fna, GkdK, vSxx, eVkMGV, WaEctW, bcSwAx, TYiO, kVMoc, HWIoA, BIVV, RJdt, NBVQ, hDs, mtuL, Ohkx, GRS, FHeof, zEgzHZ, nMnmD, kruxex, IsW, Kzlz, eQsIjX, esBma, KnosT, Odk, aekoz, qOsVm, sbPBf, NtkLtj, beMLcm, MLgxx, Yfr, zjifR,