The short boom of 180cm and the low weight of only 6.2kg allows the use of this antenna even if space is limited. QRP Day In Vero Beach! A collection of seven projects of Moxon Antennas for Ham Radio HF Bands. Established in 1996 as a radio-related-mailinglist, has registered its domain name in 1998. The main difference is, the VK2ABQ Beam is square and the Moxon Beam is rectangular. My main HF antenna is a popular commercial trapped model and it doesn't cover 160m, 60m or the higher WARC bands (17m, 12m). Moxon antenna From CECS wiki Jump to navigation Jump to search 70 cm moxon made from 6 gauge wire 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. A Moxon rectangle antenna for 4m by G6GVI I've heard a couple of stations recently discussing using a Moxon rectangle antenna on 4m, but had to go looking in my books to discover what they were . Yet there is a horizontally polarized antenna for 10 and 20 meter band, which is suitable for a limited space. The DXZone is managed by ham radio operators with ham radio operators in mind. . HDSDR is a freeware Software Defined Radio (SDR) program for Microsoft Windows 2000/XP/Vista/7/8/8.1/10. 282 - Half-Square Antenna for 30m. Using these plans provided by N0KHQ, the same Moxon retangle is reduced to about 11 feet wide. Hardcore vertical users put upwards of 100 half-wavelength radials to squeeze the last dB out of their installation. Sales price without tax 8.29. Driven horizontal part: 2.7m. The Antenna Store & More. "once more unto the breach, dear friends", Concerning local networks and infrastructure in the Survivalist communications realm, its vastly important to recognize the assets provided by Low Power, also known as QRP, and highly directional antennas to both focus our radiation pattern along the azimuth or direction we want it to travel and to make the very most out of our transmitting power. Dual band Moxon antenna (2 + 3 elements) for 10m and 6m, ideal for Sporadic-E or DX. Rotator Controller RT-21 Azimuth/Elevation Heavy Duty construction that allows 80 MPH wind survival with 1/2" radial ice, yet light enough to be turned with a light duty TV rotor. I wanted my 2 meter version to be free standing and rotatable so I built mine with brass tubing on a center, non conductive boom just like a beam. Description. The Moxon is a two element beam antenna. Dimensions 4,5 * 4,05 meter, weight about 3,0kg, gain 9,3 dBi. No matter if you want to use Sporadic-E on the bands 10m and 6m, or if you use this antenna for DX or in a contest the 2850MOX offers two bands with very small dimensions, ideal for the row house or the mast with already many antennas installed. The tubing I used is 5/32" OD with a .032 wall thickness and fits perfectly over the 10 gauge copper . thus the term, Low(er) Probability of Interception, or LPI. Better Ground Radials for the Wolf River Coil, MFJ DuplexerTwo radios, one antenna, or vice versa, Mount Your Mobile Ham Radio Antenna The Right Way, Retevis Ailunce HD1 GPS dual band 2m 70cm DMR [ Review and Teardown ], Introduction for Icom AH-705 Automatic Antenna Tuner, The new mAT-705 Auto ATU for the Icom IC-705, Begali Signature Dual Paddle Key Palladium, Dayton Hamvention Announces Theme for 2023. For an overview of this antenna see the Cebik article The Moxon Rectangle: A Review. This beam is a 2-Element-Yagi with radiator and reflector and reduced size to about 75% of a normal beam. The feedline has been run both to the center of the X and out the front- both seem to work well. Thanks for some more good information. Still, I like verticals. Read more, I demonstrate an improved ground radial system for the Wolf River Coil Silver Bullet 1000 Read more, Ring rotor for trellis up to 52cm on the side. Does it matter which way your feed line runs relative to the antenna (like on a dipole)? It can be used as a decent SIGINT antenna to get a rough bearing on signals as well, although Ive found that a Yagi is generally more reliable for this. The Moxon Antenna . Element span is a compact 7 feet on a 34 boom with turning radius of under 4 . No comments Tax amount: 1.66. The a Read more, TheKenwood TS-890Stransceiver made its world debut at the 2018Hamventionin Xenia, Ohio. A modified version for 20 and 40 meters is described too. It s winter-storm tough but extremely lightweight, under 5 lbs. Keep any conductive or even semi-conductive vertical support (or other object) as far away as possible from the antenna. You probably know this, but some of your readers may not the Moxon has a rather broad forward direction but a deep null towards the rear, much like a cardioid microphone. The rest should be self explanatory. The Moxon antenna, developed by Les Moxon G6XN, is a derivative of the VK2ABQ square antenna developed by Fred Caton. No comments RFinder and DMR-MARC.net has completed its integration Or a really cheap way is to take what is Common-off-the-shelf(COTS), rig up your antennas, get familiar with EZNEC, and do it. Reflector horizontal part: 3.20m. Mine stands about 30' tall overall. The design is rectangular, with roughly half the rectangle being the driven element and the other half being the reflector. A Super-Duper Tiny 3D-Printed HF Radio Antenna. This is a World Wide Web front end for a public domain program written by W4/VP9KF using PHP. Suitable for HF operation (mid-low radiation angle) Refer here for 10 meter Moxon Antenna Plan for Amateur . Sadly it's out of production now, but it's easy enough to create your own. MFJ-1890 for ten meters spans a mere 12 on a lightweight 50 boom. gross price Sales price without tax: 8.29. Building 2 Meter Vertical Moxon Posted date: June 03, 2016 in: Antenna No Comments Building a 2-Meter Moxon by Stephen Dunifer SourceS : http://www.moxonantennaproject.com/ and VE3STL More RFinder - The World Wide Repeater Directory now supports DMR-MARC WW Network! Moxon Antennas are basically Yagi with folded radiator and reflector. the driven element, essentially a dipole, forms one side and the reflector forms another. The parallel resonant circuit in this antenna uses a piece of RG8 coaxcable as a condensor. With the tips of the driven element and reflector bent to nearly touch, it squeezes the width of the antenna into a much smaller space. 286 - Two Elements Sloping Delta Loop 8dB-Gain for 10m. 4 pcs spreaders - Since the turning radius is approx 4.18 mtrs or 13.54 ft. you may use 2 rigid pvc and make it telescopic for each spreader. QRP Day In Vero Beach! This rugged close-spaced 2-element Yagi has a driven element and reflector with the tips folded toward each other to minimize turning radius. stream The vertical section is 21'9". Metal guys are not recommended, use Kevlar or a rope that does not stretch. October 10 th, 2009 PNWVHFS Conference W6PQL Antenna Coverage (horizontal stacking) george bill This is NOT WRTC 2022 Contest that will be held in Bologna in July 2 Read more, Dayton Hamvention 2023 is just over 6 months away, and next years Hamvention team has selected Innovation! as the event theme. 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. According to the ARRL Antenna Handbook, much of the single hop dx arrives at angles between 1 and 5 degrees. The original Yagi-like . 5 0 obj I experienced the same results on my 1st Moxon for 15 meter band, I used an insulated wire and the resonant freq. Man that's a big reduction. Bouvet Island DxpeditionBouvet is like the Mount Everest of DXCC entities. 7 Great Moxon Antenna Projects for HF Bands. ConductaSeal - Element Joining Paste. 285 - Compact Moxon Antenna 5dB-Gain for 40m. Mark 1 used a couple of fishing pole as supports but the bent far too much in the wind so I decided to engineer a more substantial arrangement that is easier to put up. The 2850MOX Dualband antenna requires only one feed line. No comments 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 and still 50 Ohm. Antenna Coverage (horizontal and vertical stacking) george bill ernie bob. Icom IC-705 Custom Made Portable Go-Case, by Ralph. New N1MM Plus: RussianDX contest: WAE multipliers were not counted (9A3OS) (coded by NA3M) EUPSKDX: updated EUAREACDS.sec file, increased max number Read more For this "Moxon Beam" or MoxBeam project I describe a portable version of my attic antenna that is built from composite lumber, fiberglass tubing, Thx. No comments Co-phasing or "stacking" has long been a way to get high gain from antennas. Building projects, at least for me, have always been the greatest teacher and instils the greatest sense of accomplishment; but all that aside, it builds knowledge, which weighs nothing and can never be taken away from you. Yes, I have built a moxon on a small piece of plexiglass for TV channel 51. I need to make a very small moxon as i have a small area to have it up ,,is this possible ??? very well, up to 40 miles away. It takes its name from the amateur radio operator and antenna handbook author Les Moxon (call sign G6XN). %VYs(bKl'wowbv\q5/aYxhE53U%g&x!0sAZU3pTo_Lk!T VEYcP_LIJ$6P{XvvLqGMh2 c*frL(" y\b/ Gain 1.6 dBi at 10 degrees take off angle. Adults Children. |>]6V U; Check In Check Out. % You have entered an incorrect email address! It features full down conversion receiver with h Read more, The Signature Gold embodies the experience that we have gained with the Magnetic Classic and the Magnetic Professional paddles, and it incorporates im Read more, Our inflatable antenna/video towers let you quickly put up antennas and/or video packages to extend or reinforce your coverage in a range of si Read more, WRTC Organizing Committee is proud to announce a 2023 edition of WRTC 2023 AWARD! identical antennas either side-by-side or one over top another ("stacking") at a certain distance apart (usually a 1/2 Wavelength or more) and feeding the antennas in-phase.The result is 3 db more than just a single antenna. The diagram shows the basic layout. Vertical polarization improves reception of vertically polarized low power FM translators. Using A Uniden Wireless Mic For ICOM Radios?? 287 - Two Elements Phased Vertical Antenna 3dB-Gain for 40m The advantages of these antennas are directional, good front-to-back, and smaller than a Yagi. 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. Icom IC-705 Custom Made Portable Go-Case, by Ralph. C marks the insulators needed to separate the two wires (pay careful attention to the insulator distancesits important). Moxon 5 element: Compared to the Moxon 4 element this antenna has one element extra between the two moxon's. It has a good F/B, bandwidth and gain. Moxon Antenna Project is an excellent resource, and contains a freeware modelling program that will calculate all of the dimensions for you- all you need to do is plug in the frequency you want to use and write down the values. 28MHz Moxon rectangle. 20 Meter Vertical Moxon. The higher the frequency the smaller the Moxon. at 1.5:1 or less VSWR. Moxon's "HF Antennas For All Locations" for many, many years. 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. Total Tax: 1.66. 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. But if one realizes how to make best use of the kit they have now, much room for improvement is allowed. I would like to add a third director element to my 10m moxon, does anyone have any ideas? The Par Electronics Stressed Moxon brings this compact design to six meters. July 11, 2015 282 - Half-Square Antenna for 30m. To tune the antenna, connect a VSWR meter to the output of the LC circuit, briefly apply a low power carrier (5W) and adjust the capacitor for minimum SWR. Im focusing on how to maximize whats already in the hands of most- knowing that while far from ideal, does have a significant amount of flexibility and many, many possibilities outside the box. Elevation Plot on 20m Moxon 6 element: This antenna has a good F/B, bandwidth and gain. . June 02, 2015 The direction finding aspect was to be a subject coming later; the primary focus is getting the readerships feet wet with building rudimentary designs, assuming little is known aside from simple plug and play procedures. The Moxon-Beam was introduced by L. Moxon (G6XN) in his book "HF Antennas for all Locations " (RSGB- Publications, Great Britain 1993). What is a Moxon antenna? This years calendar features Collegiate Amateur Radi Read more, The Secret Government Radio Signals Read more, Students from the Crop Protection Student Association at the University of Puerto Rico in Mayagez participated in a communications practice session a Read more, Copyright 2010-2022 QRZnow.com All Rights Reserved - Rodrigo Tarikian - PY2KC. Very high efficiency J-Pole vertical antenna, excellent for DX activity and local traffic.. 284 - Mini-Horse Antenna 10dB-Gain for 40m-to-2m. No comments 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. Amateur Radio Credited with Rescue of Back-Country Hiker in Tennessee Has considerable gain. As for the actual construction, I used a couple pieces of scrap 16AWG wire and an old cobra head from the connector box, wrapped along the outside of scrap PVC pipe bolted together. Youre absolutely right. It's "kissing cousin" is the VK2ABQ Beam. I decided to try a vertical moxon rectangle at my new QTH which has limited rear garden space. DIY Moxon Antennas and LPI. Dimensions (for 1.6mm diameter bare copper wire with vel.coeff 1) and Fo= 7.025. vertical parts height: 7.40m. This type of question has become more common given that multi-antenna MIMO / MANET mesh systems are now much more prevalent in the market than they were even five years ago. RT-21 Azimuth/Elevation Rotator Controller Two separate control boards for independent Azimuth and Elevation New crisp OLEDdisplays Separate Read more T hanks to this site and Pete Mills in particular I decided to build a Moxon to take on our trips to the Scottish Islands. The moxon can be further simplified by also eliminating the yagi's boom support. HDSDR publishes a new Beta release The following is the result of some experimentation that convinced me that Vertical Moxon is a feasible option, with some reduction of performance but yet very effective. No comments 283 - Rotatable Vertical Delta Loop for 20m. /z!H040?|F(gc'n\x{ 7CKZOUpq0h_0=:K5,sZEt)+ VI-01a,[xnP$CX| og3YfkaZS4Q[DJ+}Z Great idea. Dual Band DMR Radio,Analog and Digital Comb Read more, JH1CBX Masaco introduces AH-705 designed for IC-705. Ready to Ship! A horizontal Moxon has horizontal polarization while a vertical Moxon has vertical polarization. Most Moxon antennas are built for HF frequencies and use wire and fiberglass rods as spreaders. With the tips of the driven element and reflector bent to nearly touch, it squeezes the width of the antenna into a much smaller space. We liked the cardioid pattern of the half Moxon and his very broadband characteristics, making the construction somewhat uncritical. Rooms Promo Code. DO NOT use Nylon. On June 13, 2016 By ncscout In communications. Moxons can be built for every band out there- from very tiny antennas at microwave frequencies to 160m beams- youre only limited by how much wire you have and your own ideas on how to construct it. Concerning local networks and infrastructure in the Survivalist communications realm, it's vastly important to recognize the assets provided by Low Power, also known as QRP, and highly directional antennas to both focus our radiation pattern along the azimuth or . Descriptions Covers the 1.8 MHz to 50 MHz bands 30 m, 98.4 ft or longer antenna: 1.8 54 MHz, 7 Read more, Specifically built for the new Icom IC-705, the mAT-705 is the latest compact and fully portable Micro-ATU owered by an internal 9V dry battery! 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. According to Moxon [1], because of the very high impedance (i.e., very low current) at the end of a half wavelength antenna, only a small counterpoise (1m @ 14 MHz) or a few pF of capacitance to ground is required to return the current. Dave is going to explain and dig deeper into the Beam field of antennas, such as dipoles, and how their distance from the ground can change the propag Read more, A Super-Duper Tiny 3D-Printed HF Radio Antenna. This antenna features an additional third element for 6m, which leads to a particularly high gain on this band. Moxon Rectangle Generator. The stock SB6 is a 2 element directional . Unfortunately the MoxGen program was written only for normal wire sizes. MOXON Antennas. <> You can use a small rotor to turn the antenna or fix it in a static direction. MFJ 6-Meter Moxon Antenna. Scheme This is how my Vertical Moxon looks like: (2,8m x 7,7 m): Two are the key points making this antenna robust enough: a) The upper part will support the Moxon. The program is based on an algorithm developed by L. B. Cebik, W4RNL. Typical applications are Radio listening, Ham Read more, RT-21 Azimuth/Elevation Rotator Controller Two separate control boards for independent Azimuth and Elevation New crisp OLEDdisplays Separate Read more, New N1MM Plus: RussianDX contest: WAE multipliers were not counted (9A3OS) (coded by NA3M) EUPSKDX: updated EUAREACDS.sec file, increased max number Read more, A back-country hiker was rescued from Great Smoky Mountains National Park with assistance from amateur radio after she became exhausted on the trail a Read more, Bouvet Island DxpeditionBouvet is like the Mount Everest of DXCC entities. Remember to keep the open end of the RG8 secured from water (rain) because of high voltage. It sweeps at 12 GHz/s, so the probability it intercepts a transmission is really high unless you get the transmitted power below the sensitivity of the signal monitoring equipment by using spread spectrum techniques. Vertical Moxon antenna for 14 MHz. For this project I chose the Moxon because its very easy to build, takes little time, but most importantly, can be rapidly broken down and stuffed into a ruck, taking up very, very little room on 70cm. A sharp . Bouvet Island Dxpedition 3Y0J It is best used for direction finding by orienting the antenna for greatest signal null rather than maximum peak. Wire dimensions were as Pete's EZNEC model. T Read more, Keep track of your important dates, ARRL contests, and holidays with a 2023 ARRL Calendar. Some Dimensional Data The Reflector Element is a single piece of 1.5mm (14 guage) wire. On 25 june 2011 this one helped me with FO/F6CTL in Marquesas island. This antenna can be mounted on a simple push-up mast and rotated by hand or with an inexpensive light duty rotor. . About Gallery Menus Restaurant Policies. The Guerrilla's Guide To The Baofeng Radio Is Out!! A standard Moxon rectangle designed for 17 meters would be about 19 3/4 feet wide. 287 - Two Elements Phased Vertical Antenna 3dB-Gain for 40m It can eliminate noise on HF band. Save my name, email, and website in this browser for the next time I comment. Baofeng BF-F8HP Dual Band UHF/VHF 8 Watt output [ Video ] Looks like another project to play with. Governments are investing hundreds of millions in signal monitoring and DF equipment. Home ALL MFJ-1890, 10-METER MOXON ANTENNA MFJ-1890, 10-METER MOXON ANTENNA $159.95 Order Now! x\YhAmaK34u@ ;! Game Changing Wolf River Sporty Forty Coil review, ACOM 2020S | Solid-State 1.8-54 MHz Linear Amplifier. Main goal is to review and promote ham-radio web sites, classifying them in categories. It seems like it has a bit of characteristics of a NVIS but on a horizontal plane. The Moxon Rectangle was first introduced by Les Moxon, G6XN during the 1950's. Since then it has been a very popular limited space Yagi do to its very compact size. It is among the most challenging entities to activate due to significant tr Read more The whole structure is made of laser-cut AISI316 stainless ste Read more, Yaesu FT-991A The New FT-991A HF/50/144/430 MHz All-Mode Field Gear Transceiver Coming October 2016 The FT-991A is the next-generation of the wi Read more, Mount Your Mobile Ham Radio Antenna The Right Way Read more, Ailunce HD1 Dual Band DMR Amateur Digital Radio Almost all the operations can be done via radio keypad. The main advantage of Moxon rectangle antenna are : Compact and Small. (Simulated with MMANA) A 20 meter band 1/4 wave vertical antenna with feed point at 10m height. One for 24 MHz the other 18 MHz using Ali tubes. 20m T-Monopole - 20m T-Monopole short vertical antenna for 20 meters by AA5TB [ Hits: 12011 | Votes: 6 | Rating: 8.33 ] A portable 10/20/40 mt vertical antenna pop - A portable vertical antenna for 10 to 40 meters, designed for mobile operations can be used in a car as seen in pictures. Baofeng BF-F8HP Read more ISS Crossband Repeater Ham Radio Contacts! March 14, 2015 With design engineers, system integrators, and end users eager to Ill have to find the paper later. Or call +66 (0)2 624 9999 to reserve. A back-country hiker was rescued from Great Smoky Mountains National Park with assistance from amateur radio after she became exhausted on the trail a Read more About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators . Typical applications are Radio listening, Ham Read more, Copyright 2010-2022 QRZnow.com All Rights Reserved - Rodrigo Tarikian - PY2KC, Rotator Controller RT-21 Azimuth/Elevation, Baofeng BF-F8HP Dual Band UHF/VHF 8 Watt output [ Video ], N1MM Plus Latest Updates Version 1.0.4946, Amateur Radio Credited with Rescue of Back-Country Hiker in Tennessee. Not only for Sporadic-E QSOs on the bands 10 and 6m, the 2850MOX antenna made by EAntenna offers a high gain with very compact dimensions. It beats the tar out of simply using a rubber duck on that HT. The correct spacing of antennas in a multi-antenna deployment is a subject that is frequently brought up by Southwest Antennas' customers. The Moxon Beam. I Love It! 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. Moxon antenna for the 2-meter band Covers 135 Mc.to 155 Mc. VHF and UHF Moxon antennas are very popular thanks to the easyness of construction and portability, while HF models are very uncommon, but still interesting to homebrew. This program has been derived from a public domain BASIC program written by L. B. Cebik, W4RNL and previously published on the web. Well explained too. I've posted a 15- meter Moxon video too.. "/>. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); A moxon antenna project made with wires and fiberglass poles, A Mini Moxon antenna for 40 meters band project in a well done PDF document, A Moxon rectangle antenna for 17 and 20 meters band, This very large moxon antenna resonate on 80 40 and 10 meters, has been used for CQWW 2006 by a YU team project, A vertical Moxon with different feeding for the 20 meters, A club project experiment about a vertical Moxon antenna for 20 meter band. The following is the result of some experimentation that convinced me that Vertical Moxon is a feasible option, with . When we turn to vertically oriented Moxon rectangles, we find a much simplified situation. The Moxon antenna or Moxon Rectangle is a simple and mechanically robust two-element parasitic array, single-frequency antenna. Q}$j]_&] pTs%Yosp4k2F$8ke`8ZgwT. Range depends on a lot of variables. So let's proceed to the Mini-MOXON project at W7XA Linear . That does not fit every home or garden. But considering nearly all of the power is reflected forward, it would be reasonable to suppose one would make it to the radio horizon on much less power than compared to an omni-directional antenna. The DXZone merges amateur radio and Internet, since early internet days. Here is a quote from wikipedia for the definition: "The Moxon Antenna is a simple two element parasitic array antenna that is popular with Amateur Radio enthusiasts for its simplicity of construction. It has about the same gain, larger F/B ratio, 50 feed, and is approximately 30% smaller than the Yagi. Co-Phasing. October 10 th, 2009 PNWVHFS Conference W6PQL Antenna Coverage (vertical stacking) george bill Ernie (behind the ridge) bob ridgeline. Dual Band 4/6m. November 03, 2016 The SmarTech 27VJ is a vertical polarization antenna, completely redesigned and optimized for maximum electrical and mechanical performance. I prefer to use a rope as an 'armstrong rotor' for mine. For point to point communications over reasonable distances, its a good choice. Another option is to re-purpose some of the millimeter-wave devices coming out for automotive radar for radio. Select Hotel. A horizontal 20 meter band dipole at 10m height. 3IUwU5f.&wo7tTx%^Ot{L'mf&fNo>>Kjgw{jib8<6MZS=WzL4oKu[/ATvlXjZ\+1/BfjJRrN> Description In Stock! The Secret Government Radio Signals I Heard Today! Game Changing Wolf River Sporty Forty Coil review, ACOM 2020S | Solid-State 1.8-54 MHz Linear Amplifier. was a bit below 21 mhz. Sales price without tax 8.29. The SE-20M, 20-Meter Moxon Beam covers 14.000 Mc to 14.350 Mc at 1.5:1 or less VSWR, or 18.068 Mc to 18.168 Mc at 1.3:1 or less VSWR when setup for 17 meter operation as well. A Moxon Rectangle (Yagi) for 27MHz or 28MHz - This antenna can be set for use on either band or 500KHz of each! To test out how LPI such a system is, youd need something like this: https://www.rohde-schwarz.com/us/product/ums300-productstartpage_63493-56146.html So, I set out to develop a simple antenna to fill in the gaps in my HF coverage. M=9E"l~it"w Omni-directional (radiates in every direction) antennas such as the Jungle antenna described in this blog before are great for fixed position signals, such as a hasty TOC, but offer no directivity and thus very little security. Form a small air choke with your coax(wrap the coax a few turns in a tight loop near the feed point), connect to the antenna and radio, and youre set. The null is sharper and easier to find; then the direction of the signal is towards the back of the antenna. PT-GP1 Multiband HF Vertical Portable Antenna, WiMo Antennen und Elektronik GmbH (WiMo) will be the exclusive distributor for the complete 4O3A product. http://w4.vp9kf.com/moxon_design.htm Being new to ham this was very interesting. The orange type appears more firm and sturdier than the blue ones. 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. Notify me of follow-up comments by email. 284 - Mini-Horse Antenna 10dB-Gain for 40m-to-2m. Follow Brushbeater, the site dedicated to training and enhancing Small Groups, Teams and Individuals in Real-World Combat Skills, Improvised and Off-Grid Communications, Intelligence, Wilderness Skills and Advanced Marksmanship. Take note that the driven element must be forward to the intended direction, and can be polarized either vertically or horizontally. A Moxon antenna may be deployed either horizontally or vertically. 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