Multiband Moxon Antenna Calculator


The Wire Size can range from 16 AWG to 12 AWG. What you see above is prototype #1 of the N3UJJ Parallel-Cage Dipole. Multi-band Dipoles: And remember, there are several different varieties of dipole antennas, some of which can help you get onto multiple bands with a single antenna and feed line. Thanks for stopping by. Here I build a multi-band dipole antenna for HF use on 40-20-15-10-6 meters. It was the next best option to having a quad. leo is the best at service he will always help great service. Passion Driven Solutions At CUBEX, we’re passionate about the veterinary industry and strive to help practices address common issues and concerns when it comes to narcotics safety and inventory management. MFJ-1890 10 Meter Moxon Antenna (Tested on 10 meters & 11 meters/CB Band) MFJ MOXON Quick Look From CBRADIOMAGAZINE. Steve Yates - AA5TB HOME. Other feed ar-. A multiband yagi antenna As most of us know, the monoband yagi is by far the best antenna choice. The driven element is a directly fed multiband dipole, again contributing to a simple, broadband and low-loss construction. Vertical HF antennas do have their merit though. Since I am also in that position I thought I would share what I do, perhaps it will help others with a simple solution to the problem. And remember, every antenna is a compromise, so carefully check out the design and performance reports before finalizing your decision. Links to moxon antenna resources category is a curation of 70 web resources on , N2YET- Moxon projext, Moxon Rectangles, The GW3YDX Super Moxon Antenna. This antenna really shines above 20m where it has the gain of over the 3/2. Rhombic Antennas 30M - 6M -- From KC0FVV Rhombic Antennas-- From Integrated publications. Being a half-wavelength on that band, the antenna pro-vides an efficient low-angle radiation. Bingfu Dual Band VHF UHF 136-174MHz 400-470MHz Ham Radio Antenna Low Profile Antenna PL259 Male Connector for Vehicle Car Truck Ham Two Way Radio FRS GMRS MURS Radio Amateur Radio Mobile Transceiver. his book HF Antennas for All Locations (published by the RSGB), Les Moxon, G6XN, suggests that when no insulators are used a half-wavelength can be found by using either 478 / f (MHz) feet or 145. The JK401 is a simple Hi-Q coil loaded rotatable dipole, with a small footprint as well giving great performance on 40M. The driven element is a directly fed multiband dipole, again contributing to a simple, broadband and low-loss construction. 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. The Par End-Fedz ® are a full length half wave dipoles, but with an important difference. The DL6WU yagi is highly regarded as being easy to build with repeatable results, broad bandwidth and a useful pattern. As seen on his page, the original formula seems to come from an article by J. If you’re dealing with a multi-band. Obtained from simulations. Although I have never had stacked yagis (for the same band) in my various stations over the years I have used many and helped others design them. 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). Instead of trying to get the SWR as low as possible on one band, the goal is to get the SWR "low enough" for as many bands as possible. This calculator will recommend a mountain bike size based on your measurements. The larger the wire, the wider the bandwidth. That can give it a rectangular look if there are supports between the ends of the driven and the reflected elements. 200 (centre of SSB activity on 4m), I used this handy online Moxon calculator by W4/VP9KF. We can offer you this antenna in a compleet antenna kit For more information send us an e-mail or look on www. The main general purpose antenna for 20 meters was a 5 element Telrex 46' boom yagi at 100 feet. The program is based on an algorithm developed by L. Hidetsugu Yagi and Dr. Some TIPS on measuring VSWR and troubleshooting M2 … Antenna Gain: dBi vs. Post #1023. We have assembled the best team, suppliers and parts manufacturing to provide our clients with HF antennas that will be considered a work of art. All the antennas in the Array are putting in the same amount of effort to achieve a stronger signal than the single individual. Obtained from simulations. Here is a link to my instagram account to see it in action. Manufacturers of High Quality Amateur Radio / Ham Radio HF Yagi, Transmitting and Receiving Antennas. 3 dBi forward gain and 30 dB of interference killing front-to-back rejection! Mount anywhere using lightweight TV antenna hardware. 5/5click here to see their performance reports. A number of variants of each model can be produced in order to cater for the real-world requirements of both the. Building the 6 Meter Moxon Antenna | KB9VBR J-Pole. Construire 6 mètres Moxon antenne | KB9VBR J-Pole Antennes. , yet delivers an amazingly clean cardioid pattern with 3. The Inverted-L antenna is a common antenna for the 160 meter and 80 meter amateur bands, where typical ¼ wave verticals are impractically tall for most amateurs. G5RV - 102 ft. It consists of a driven element and a reflector. 3m long, and 2. Hall, "Off-center loaded dipole antennas", QST Sept 1974, 28-34. Moxon antenna design calculator: Calculation Results. Welcome to the world of wireless internet, antennas, coaxial cable, return loss plots and all sorts of nerdy stuff. Weighs just 8 lbs. The antenna is modeled using. After using verticals for 40 meter and last year a delta loop this year I choose to make a rotatable dipole. The End Wire Size can range from 16 AWG to 12 AWG. Understanding the Hexbeam. com 6m-Half-wave-vertical Six Meter Moxon Antenna Moxon Antenna Project 17 Meter Coaxial Moxon Antenna - A Little Antenna with a BIG FOOTPRINT! Coax Choke Yagi Construction details DIPOLE AND INVERTED V VEE DESIGN AND CALCULATOR MAGLoop Antenna / magnetic. We can offer you this antenna in a compleet antenna kit For more information send us an e-mail or look on www. The separation distance can be calculated using either my parallel square or circular conductor transmission line calculator. A 2 element MOXON antenna for the 20 meter (14Mhz) Band. The length of the phasing lines is still L/2, so left and right radiators emit in phase:. 25 inch galvanized steel mast. his book HF Antennas for All Locations (published by the RSGB), Les Moxon, G6XN, suggests that when no insulators are used a half-wavelength can be found by using either 478 / f (MHz) feet or 145. TAK-tenna 80 to 6 meter Multiband Antenna. In the graph below I have plotted what MININEC predicts for the impedance of an end fed half wave antenna versus the "counterpoise" length. John Jacobs, host of the Field Radio Podcast, returns join in a discussion of basic DIY HF antennas. Elevation Plot on 20m. The Moxon is a great little beam. 88 ft and 44 ft are popular lengths. The correct lengths for the various models will be displayed in the chart. For 2 meters, the coil is 4 turns of coax at 5 inches in diameter. IMO, your antenna shows a bad match, and the bandwidth is not so good either. This makes the 2 Meter Slim Jim antenna a great solution for repeater sites, data and packet stations, APRS, and even every day. to think about a new multi-band quad with full-size 40-meter elements and good per-formance on 20 meters. Loop Antenna 1 λon 15 m (approx. , broadside to Swiss Radio International from Northern California, W2AU Grove double to single ended balun. It allows the average amateur to compete with the big boys for DX and without spending your retirement to do so. An Hexagonal Beam in 3 hours. Reviewed by Bob Allison, WB1GCMAssistant Laboratory [email protected] Wire Antenna Calculator. KD6WD'S Moxon Antenna Project The goal of this website is to share the experiences of MOXON antenna builders After you build one (try building a small one for 6 or 2 meters) and you'll agree. Experiments with an End Fed Half Wave Antenna. Sometimes on 80 meters but there the 80 meters 2 * 20 meter dipole fed with open wire gave me more qso’s. Thanks to your design i made a similar moxon with the parasitic element and it worked great on the AO-92 this morning. This horizontal “slot” antenna, cut into the reflector of a TV dish, is both the master of disguise and high in performance. ) #12 AWG 400 Ωladder line 22. 4 GHz WiFi antennas include over 200 models ranging from Grid, Yagi, Patch, Panel, Rubber Duck, Omni directional and more. What you see above is prototype #1 of the N3UJJ Parallel-Cage Dipole. That can give it a rectangular look if there are supports between the ends of the driven and the reflected elements. The antenna can be fed at one cor-ner (low impedance, current fed) or at the lower end of one of the vertical wires (high impedance, voltage fed). My antenna setup in Zagreb, 9A. Single band or multi-band antenna? With multi-band radios now so readily available to hams, the majority of folks are likely to desire a multi-band antenna with which a single feed line can be used. Wire Antenna Calculator. Moxon antenna. Many Hi-Fi tuners and other radios have input sockets that will accept the input from a coaxial feeder, and where no external antenna is used, a dipole antenna can provide an excellent solution. It is a directional antenna that provides great performance and does not require a full scale, expensive tower. Fall bekommen Sie zugleich noch die Oberfläche eines Rechners präsentiert, der Ihnen bei der exakten Bemessung Ihrer Moxon hilft; die zugehörige Rechnersoftware ist übrigens von der Moxon Antenna Project Website unter Design downloadbar. The HF wire works in a pinch, but what I really wanted was a beam. If you view the various antennas in the What's New section on the homepage, you'll see what we mean. The Log-Periodic Antenna is the most effective and efficient single feedline, multi-band antenna available today Our design engineering is textbook and common sense based with adherence to the laws of physics and what we, the designers, would want to use as a part of our own system. For multi-band operation matching can be achieved using a 4:1 balun and a tuner in the radio shack. The most common type of microstrip antenna is the patch antenna. W4RNL - Top Five Backyard Multi-Band Wire HF Antennas. The antenna calculator (link showin in a previous step) indicated that the bases of the elements needed to be 57-1/2″ down from the top of the 1/2″ EMT conduit piece on my antenna. Antenna tuners can deal with these SWR values just fine, too. Within about a year, I had my first DXCC certificate! Here's some helpful tips for getting your DXCC with indoor antennas. This antenna has now turned into a VHF/UHF facility that permanently sits in my car, together with the magmount base. Nonetheless, the results are both promising and useful. What a beam antenna does is to take our signal and guide it, so that we have more power going in one direction than in another. For the PACC contest I need (several) antennas for every band. I didn't fancy the standard wire antenna with the cross support poles, I wanted something a little sturdier, and found this website which describes all the details for constructing a tubular Moxon including the Moxgen software for working out the dimensions. ) The antenna is explained in the following:. a Delta Loop for 14. The Sentinel is designed from the ground up. Modified W8JK Beam. Cebik, W4RNL. now it’s back to prove its legendary status once again!. Browse Motorola's selection of portable radio antennas and find VHF and UHF whip, helical and stubby antennas for your two-way radios. As the loop's characteristic impedance is about 112 ohms, the transceiver is presented with an SWR of about 2:1 if no matching is included. In the first couple hours of having it up I was able to hear stations I could not hear before. Mark II Crossfield Antenna by G3YCC Mobile/Portable HF Whip by G3YCC MOXON Antenna Project by K6SGH Multiband Cubical Quad by EI7BA Multiband Delta Loop by DL2HCB (via G3YCC) Multiband Delta Loop by IK4DCS Multiband HF Fan Dipole Project Mystery Antenna by W5GI NB6Zep Antenna by NB6Z PAC-12 Antenna by KA5DVS Packing Crate Antenna by SMØVPO. Antennas From the Ground Up: a series of articles on antenna basics for Low Down, the journal of the Colorado QRP Club. New Home of the Force 12 Antennas. The antenna is designed to be fed with 50 or 75 Ohm Coax Cable of most any length with a Balun. Antenna tuners can deal with these SWR values just fine, too. The back-to-back design is "pure rectangle" and makes use of the very high front-to-back ratio in order to closely space two independent antennas. Construction The antenna is made with two parallel dipole elements, 7. An Hexagonal Beam in 3 hours. Dimensions 4,5 * 4,05 meter, weight about 3,0kg, gain 9,3 dBi. A number of variants of each model can be produced in order to cater for the real-world requirements of both the. This is an incorrect assumption. Known as the Magic Band, the six meter band can The Moxon Antenna, designed by Les Moxon (SK), is a compact two element beam antenna with about dbi of gain and a front to back ratio. Building the 6 Meter Moxon Antenna | KB9VBR J-Pole. 7 VDC bench power supply for a ham radio. I did some searching on the web and came across the Moxon Antenna which looked to be just the job and fairly easy to build. Typically has 6 db (approx), over any other 5/8 wave antenna. Fall bekommen Sie zugleich noch die Oberfläche eines Rechners präsentiert, der Ihnen bei der exakten Bemessung Ihrer Moxon hilft; die zugehörige Rechnersoftware ist übrigens von der Moxon Antenna Project Website unter Design downloadbar. Building the moxon has certainly given me an appetite for beam antennas. A nonresonant antenna will work--even with sky-high SWR--if the feed-line loss is low enough. Over the last few years, I have heard guys using Hexbeam antennas. ln its basic form it'seasy to build and is a great performer. My goal was to be able to work from a small mountain near my home, and do so at QRO power levels, with a beam antenna. Cebik, W4RNL The Moxon rectangle is a fascinating antenna on several scores. 0 on a scale of 1 to 5. The more we concen-. QAntenna, Antenna Analyzer for Linux User. While I've scoured The Moxon Antenna Project site as well as Googled the subject I am unable to find any specific plans for a 4- element Moxon/Yagi anywhere. Some TIPS on measuring VSWR and troubleshooting M2 … Antenna Gain: dBi vs. A design for larger antennas, such as a 6 element Yagi style antenna, are also provided but not recommended simply because of the additional time involved in construction. Jan 6, 2019 - Explore irepair4u's board "Amateur radio antennas, masts" on Pinterest. Buy GAP Titan-DX GAP Vertical Antennas online at £469. Links to moxon antenna resources category is a curation of 70 web resources on , N2YET- Moxon projext, Moxon Rectangles, The GW3YDX Super Moxon Antenna. 17-Element Very High Frequency/Ultra High Frequency Log Period Dipole Array: The 17-element VHF/UHF LPA antenna was placed in service on 26 May 2010 (see pictures below) and removed. 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 would make the antenna 9'6'' tall overall not counting the mounting method at the base of the antenna. This broad band beam is the answer to your dream of a directional antenna that can be mounted on an inexpensive push up mast and in a space no larger than a garden home backyard. They are all sized the same – using a riders height and leg length to determine frame size. STACKING ANTENNAS. Weighs just 8 lbs. This antenna has excellent performance on the upper HF bands ie 15m, 12m and 10m. ) The antenna performs quite well on the 2 meter band, even though it was designed exclusively for the lower 3 MURS channels. Dimensions 4,0 * 4,0 meter, weight about 2,5 kg, gain 7,5 dBi. boom is doable and about the same as the quad that will share the boom A Moxon for MURS The moxon antenna is a relatively simple antenna to build as it consists of just 2 elements, yet has a decent gain of about 6 dBi and a front to back approaching 30 dBi or more. These HyperLink brand 2. Enter the desired frequency and select the desired calculation from the drop box. My 8214 cable should certainly offer low loss. Top Amateur Radio Websites - Issue 1939. you don't really believe jo-gunns claims do you ? So, you got the connection that I think Henry was trying to make, except maybe he was trying. Building the Moxon Antenna is fairly easy and lends itself to imagination. mfj-1890 10 meter moxon antenna or multiband (new!) vertical antenna that is great for dx and very cheap to build. The larger the wire, the wider the bandwidth. The SE-6MB can be mounted horizontally for CW/SSB operation, or vertically for FM operation. Using this software, you can design and build your own Yagi antenna. With a properly de- signed beam type of directional antenna the energy radiated off the sides of the antenna will be substantially lower (20 to 30 dB typically) than off the front of the antenna. The following program will calculate the lengths needed to construct several popular wire antennas. An “Inverted-L” antenna is basically a wire antenna, typically ¼ to ½ wavelength long on the band it is designed for. Like a Yagi–Uda antenna ("Yagi"), a quad consists of a driven element and one or more parasitic elements; however in a quad, each of these elements is a loop antenna, which may be square, round, or some other shape. Assembling an effective indoor antenna for the HF bands can be frustrating. -Yagi for 50 MHz. Reviewed by Bob Allison, WB1GCMAssistant Laboratory [email protected] My first step was to calculate the dimensions for the driven and reflector elements for my centre frequency of 70. For 6m, a 3-4-5 element Yagi will absolutely outperform the Moxon and is still quite small, light, and easy to install. The conductor width isn't of great importance in the design. The Super J-Pole Antenna(Collinear Design) Below is a Javascript for calculating the lengths of tubing to be used for the construction of a Super J-Pole. 640 DATA accalc, A. INTRODUCTION. What’s more, with proper matching, it also performs very well on the 20 meter band. 200 (centre of SSB activity on 4m), I used this handy online Moxon calculator by W4/VP9KF. Here's a simple project to make a multi-band mobile antenna from an inexpensive 10 meter Hamstick that gives four bands to choose from. Paul's calculator derives from a public domain BASIC program written by L. I feel the Moxon can show nearly perfect matching results, and a <2. A Closer Look at Vertical Antennas With Elevated Ground Systems Rudy Severns N6LF. antenna : Antennas: Vertical Loop Antenna for 6m by dxzone. historic background and evolution of this broadband antenna. Das sind die wichtigsten Kenndaten der Moxon-Antenne - und sie klingen vielversprechend! Im 2. some projects proposed a double RG58 coaxial cable transformer connection feeding all the loops to one 1:1. It is important to note that …. While I've scoured The Moxon Antenna Project site as well as Googled the subject I am unable to find any specific plans for a 4- element Moxon/Yagi anywhere. 5mm cable and the final resonant dimensions worked 4% shorter. SO-239 pigtail feedpoint. The reduced wingspar. think of directivity as an antenna characteristic that permits us to concen- trate the radiated signal energy in a favored direction. ) The antenna performs quite well on the 2 meter band, even though it was designed exclusively for the lower 3 MURS channels. In the graph below I have plotted what MININEC predicts for the impedance of an end fed half wave antenna versus the "counterpoise" length. Antenna tuners can deal with these SWR values just fine, too. 5mm wire) and a 5 or 6 element Moxon for 6 meters. 25MHz, then I removed the resistor and attached the half wave antenna (6. I used 1″ thin-wall PVC pipe, aluminum tape, and RG-8X coax. Building the moxon has certainly given me an appetite for beam antennas. A Moxon is nothing more than a 2 element Yagi with the ends of the elements folded back towards each other to occupy less physical space. Steve Yates - AA5TB HOME. It consists of a driven element and a reflector. Here I build a multi-band dipole antenna for HF use on 40-20-15-10-6 meters. Full Wave Loop Antenna Calculator. Das sind die wichtigsten Kenndaten der Moxon-Antenne - und sie klingen vielversprechend! Im 2. A collection of seven projects of Moxon Antennas for Ham Radio HF Bands. Building the 6 Meter Moxon Antenna The Moxon Antenna, designed by Les Moxon (SK), is a compact two element beam antenna with about dbi of gain and a front to back ratio. 65m) and counterpoise (66cm) from the above calculator. THE DEFINITIVE ANTENNA REFERENCE--FULLY REVISED AND EXPANDED! Design and build your own antennas with the help of this unique guide. A further factor which influences antenna resonant length is the diameter of the wire used for that antenna. Described here is a simple multi-band magnetic loop antenna designed for 20, 30 and 40 metres. Exclusive designs from some of the world's top antenna designers have been turned into professionally built, mechanically excellent antennas with a focus upon being manufactured the right way not the most cost effective way. 5/5click here to see their performance reports. The more we concen-. Cut your 1/2″ conduit 6″-7″ longer so that you can use the #12 hose clamps to attach the L-bracket physically (and electrically) to it. I am also chairman of the RSGB's Propagation Studies Committee and produce the weekly HF propagation report for GB2RS. The Hexbeam is a great little antenna! It should be high on your list of options if you want a design that can be "multi-banded", exhibits useful gain and directivity, is very lightweight, has a small turning radius, and which lends itself readily to "Do It Yourself" construction. Gizmotchy® 10/11 Meter Power Booster Addition of Gizmotchy® Power Boosters to your Gizmotchy® 10/11 Meter antenna adds another set of director elements plus a 3. This is a World Wide Web front end for a public domain program written by W4/VP9KF using PHP. Within about a year, I had my first DXCC certificate! Here's some helpful tips for getting your DXCC with indoor antennas. The F/B and extra gain is worth the effort. Yagi Calculator is a Windows program that also runs well on Linux, Ubuntu 8. Obtained from simulations. 65m) and counterpoise (66cm) from the above calculator. This version will give us 40 meters, 20 meters, 15 meters, 10 meters and 6 meters without an ATU. Online Dipole Antenna Calculator. G5RV multi-band antenna G5RV multi-band antenna,2 hampage HF antennas - XE1BEF WEB PAGE Homebrew VHF Yagi 50MHz 144MHz 432MHz 1296MHz 2320MHz 6M 2M 70CM 23CM 13CM Yagis Homebrew VHF Yagi 50MHz 144MHz 432MHz 1296MHz 2320MHz 6M 2M 70CM 23CM 13CM Yagis KD6WD'S MOXON ANTENNA PROJECT. The program is based on an algorithm developed by L. 5mm wire) and a 5 or 6 element Moxon for 6 meters. I just ordered a Diamond Discone antenna for satellite stuff so it will probably be going on the tower soon also. Post navigation. Exclusive designs from some of the world's top antenna designers have been turned into professionally built, mechanically excellent antennas with a focus upon being manufactured the right way not the most cost effective way. What a beam antenna does is to take our signal and guide it, so that we have more power going in one direction than in another. Full Wave Loop Antenna 10M thru 80M G5RV Multi-Band Antenna by Louis Varney Hex Beam 20 thru 10M -- From K4KIO IK-STIC -- multi-band vertical dipole antenna used for quick set-up and quick band change -- From W2IK IK-STIC 2 vertical, all band, antenna, 25 feet tall, under 5 pounds! With a tuner covers the amateur radio HF bands from 40 - 10 Meters. mfj-1890 10 meter moxon antenna or multiband (new!) vertical antenna that is great for dx and very cheap to build. The SE-6MB Moxon Lite is field adjustable anywhere from 50 to54 Mc. but it is a monoband antenna. This software can not only be used to design but also to find out antenna gain, stacking distance, and Standing Wave Ratio (SWR). Step 6: Erecting antenna vertically - This can be easily done by one person and if the guy wires are properly fixed in advance (at least two of them) then you can put the antenna up alone. Resources listed under Multiband antenna category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators. The open ends of the boom and the PL-259 connector were sealed with a self sealing silicone tape called Rescue Tape. Resultado de imagem para ham radio antenna how build one Learn all about antennas!. An antenna is never a power amplifier. Multi-band Dipoles: And remember, there are several different varieties of dipole antennas, some of which can help you get onto multiple bands with a single antenna and feed line. VHF-UHF Long Boom, Very High Performance Antenna Designs (links updated 27 Sep 2016). Home of the AM Press/Exchange, The AM Forum (the largest BBS of it's kind),and The AM Classifieds, Photos, Audio, and technical information. Hidetsugu Yagi and Dr. The most common material for home building small ham radio loop antennas is common copper plumbing pipe. Consultando vari siti web di colleghi OM od SWL è capitato spesso di leggere a riguardo di un sistema di antenna denominato MOXON, un'antenna, caratterizzata da una buona direttività, un ottimo rapporto fronte retro, e una evidente semplicità di realizzazione. Understanding the Hexbeam. Building the moxon has certainly given me an appetite for beam antennas. 3m long, and 2. The measurements below are for building a Double Bazooka Near Vertical Incident Skywave (NVIS) Antenna. if you want a great antenna here it is at a great price. Introduction. Below the antenna used during the PACC 2013. Multi-Band Hexbeams Two of my Hexbeams have been multi-band versions. Other feed ar-. Doublet – Multi-band antenna that is not resonant on a particular band. Use ladder line and a wideband transmatch (a naturally balanced tuner, like a Johnson Matchbox) for multiband operation. If you can't mount it on the roof of your school then you will have to decide whether you have room to mount the Yagi in your classroom. Basically, a moxon rectangle is a 50 ohm two element wire beam antenna. Antenna Moxon for 7 MHz My choice was to try a moxon wire antenna made by very thin wire to reduce weight. Looking for more information about multiband performance and impedance matching, I found a very interesting article, "A Compact and Efficient Multiband Beam Based on a Modified W8JK Array” by K5LJ. For its size, the performance of the antenna always astounds me, although it is never going to replace a Yagi!. Terminals - $10 for 10 pairs. This 10 - 75 meter horizontal loop antenna is fed with 450 ohm ladder line running down into the ham shack via a roof vent to a Palstar AT1500BAL balanced line antenna tuner. For multi-band antennas, they must be of a non conducting material such as bamboo or preferably fiberglass. Doing so adds dB gain, power multiplication, and front-to-back separation. As the loop's characteristic impedance is about 112 ohms, the transceiver is presented with an SWR of about 2:1 if no matching is included. Using the EFHW for 20m at GB0CMS 3. A quad antenna is a type of directional wire radio antenna used on the HF and VHF bands. John Simpson, KG4ZOW Download source code for this program Moxon algorithm and diagram are from http://www. boom is doable and about the same as the quad that will share the boom A Moxon for MURS The moxon antenna is a relatively simple antenna to build as it consists of just 2 elements, yet has a decent gain of about 6 dBi and a front to back approaching 30 dBi or more. Frequency of Operation: MHz: Diameter of wire: mm: A: feet. The author isa keen enthusiast of the Moxon Rectangle antenna, invented by the late Les Moxon, G6XN. Within about a year, I had my first DXCC certificate! Here's some helpful tips for getting your DXCC with indoor antennas. QRP Multi-band HF EFHW antenna for SOTA Post updated 29 September I have inserted two additional links for coverage on and I have changed the counterpoise wire from metres to Link End Fed Half Wave Antenna and Tuner for SOTA - Get out of the Radio Shack and Live Life QRP Multi-band HF EFHW antenna for SOTA Post updated 29 September 2017. New Home of the Force 12 Antennas. The W8IO Antenna Site. , yet delivers an amazingly clean cardioid pattern with 3. Gizmotchy® 10/11 Meter Power Booster Addition of Gizmotchy® Power Boosters to your Gizmotchy® 10/11 Meter antenna adds another set of director elements plus a 3. So if 20m is your main DX interest look at the Moxon Beam. Here I build a multi-band dipole antenna for HF use on 40-20-15-10-6 meters. 25MHz, then I removed the resistor and attached the half wave antenna (6. No two Moxon's are identical save the dimensions of the elements and spacings. A patch antenna is a narrowband, wide-beam antenna fabricated by etching the antenna element pattern in metal trace bonded to an insulating dielectric substrate, such as a printed circuit board, with a continuous metal layer bonded to the opposite side. Worldwide leader in amateur radio accessories! This fantastic true full-size 5/8 Wave 10 / 12 Meter vertical antenna from Hy-Gain was a legend in the 70’s. Equipment for portable HF operations (Trans)portable HF antennas (III) In the second table displayed below, I have listed larger antennas, mostly designed for a semi-permanent installation or a field activity, that you are alone or in group. The most common material for home building small ham radio loop antennas is common copper plumbing pipe. Circuit Calculator 650 DATA accelr, Acceleration Calculator 660 DATA antfield, Antenna Field Strength 670 DATA antscale, Antenna Frequency Scaling 680 DATA impant, Antenna Impedance Calculator 690 DATA antenna, Antenna Length/Pruning calculator 700 DATA antsyn2, Antenna Matching Networks 710 DATA arch, Arch Calculator 720. Wire Antennas for Ham Radio Tee Antenna Half-Lamda Tee Antenna Twin-Led Marconi Antenna Swallow-Tail Antenna Random Length Radiator Wire Antenna Windom Antenna Windom Antenna - Feed with coax cable Quarter Wavelength Vertical Antenna Folded Marconi Tee Antenna Zeppelin Antenna EWE Antenna Dipole Antenna - Balun Multiband Dipole Antenna Inverted-Vee Antenna Sloping Dipole Antenna Vertical. Macam2 Skema Antena Radio Trio Star antenna for 2m in PDF - trio star antenna. Place a 1:1 Balun on the Antenna end of the Feedline. 5mm wire) and a 5 or 6 element Moxon for 6 meters. Posts include: Taming the Yaesu FT-857D, The Rover DC Power Dilemma, DC Voltage Stabilizers, Rover Antennas, Rover-in-a-rack pakaging, Rover loaner station, Smartphone Apps for Roving, The Texas Hill Country Rovers, Top 10 Reasons to Rove. This is a World Wide Web front end for a public domain program written by W4/VP9KF using PHP. If you’re dealing with a multi-band. his book HF Antennas for All Locations (published by the RSGB), Les Moxon, G6XN, suggests that when no insulators are used a half-wavelength can be found by using either 478 / f (MHz) feet or 145. Consultando vari siti web di colleghi OM od SWL è capitato spesso di leggere a riguardo di un sistema di antenna denominato MOXON, un'antenna, caratterizzata da una buona direttività, un ottimo rapporto fronte retro, e una evidente semplicità di realizzazione. THE DEFINITIVE ANTENNA REFERENCE--FULLY REVISED AND EXPANDED! Design and build your own antennas with the help of this unique guide. ln its basic form it'seasy to build and is a great performer. It is designed to have extra long range communications, due to its very low angle of radiation. Frequency of Operation: MHz: Diameter of wire: mm: A: feet. While I could get reasonable F/B ratio, I had loss over a dipole in the direction the antenna was pointed. Dimensions 4,0 * 4,0 meter, weight about 2,5 kg, gain 7,5 dBi. org The … K6MYC on Antenna Testing. It cannot possibly have more gain than a 2 element Yagi, and in fact, has a little bit less. This Dipole antenna gives the same gain as all other dipoles, however, the Half Square is a much better DX antenna for a given elevation and may be worth the extra effort. Up to 40 meters it's possible to make these antennas rotatable looking at the size of the antennas (and my backyard). Post #1025. Fall bekommen Sie zugleich noch die Oberfläche eines Rechners präsentiert, der Ihnen bei der exakten Bemessung Ihrer Moxon hilft; die zugehörige Rechnersoftware ist übrigens von der Moxon Antenna Project Website unter Design downloadbar. The next generation in Design and manufacturing. An antenna is never a power amplifier. com 6m-Half-wave-vertical Six Meter Moxon Antenna Moxon Antenna Project 17 Meter Coaxial Moxon Antenna - A Little Antenna with a BIG FOOTPRINT! Coax Choke Yagi Construction details DIPOLE AND INVERTED V VEE DESIGN AND CALCULATOR MAGLoop Antenna / magnetic. After having a great deal of success with a 20m moxon at my QTH, I decided to build a portable version, based on help from The Moxon Antenna Project by KD6WD. 77-79 August 2001 * July 2001 ANTENNA: A Three Element Lightweight Monobander for 14 MHz 28-31 ANTENNA: The Miracle Whip: A Multiband QRP Antenna 32-35 ANTENNA: A Three-Element "Monobander" for 17-10 m--with Two Eles on 20! 36-41 ANTENNA: QRP-France with a "Junk Box Shorty Forty" Antenna 66-68 DOCTOR: is IN - Dipole, folded, bent, etc 64-65 DX. Since it is a full wave antenna, you get twice the wire of a dipole into and onto the air. Hidetsugu Yagi and Dr. Antenna gain is measured in either dBi or dBd. The End Wire Size can range from 16 AWG to 12 AWG. Wire Antenna Calculator. The impedance of a ½ ʎdipole in free space is ____. 2 kinds of grease are supplied with your antenna: • Aluminum contact grease: Professional grease containing 30% aluminum particles, recommended for the assembly of aluminum antenna tubes. It cannot possibly have more gain than a 2 element Yagi, and in fact, has a little bit less. After half-square antenna, I checked few similar configurations, adding phasing lines and vertical elements. Weighs just 8 lbs. Now that we have established that low single digit SWR values are no problem for losses, the goal for a multi-band antenna becomes clear. A nonresonant antenna will work--even with sky-high SWR--if the feed-line loss is low enough. The length of the phasing lines is still L/2, so left and right radiators emit in phase:. The purpose of an antenna tuner is (circle one) a)make the antenna happy or b) make the radio happy. Extended Double Zepp - Longer than a dipole.