40m Wire Moxon








150 - Pyramidal Wire Antenna for 80m. Do not bend it too strong, the mast has to be kept straigt. Model of a Rhombic Antenna. Notes: • Spacing is the Distance from the Boom to the 'Gamma-Match'. FR5EC MOXON HYBRIDE 3 bands 28, 21 et 14 MHZ coaxial traps Historically, I always wanted to use an antenna light, inexpensive, feasible, reproducible for friends, solid, usable in any portable, smaller, (and even very small size with the same gain! !) using multi-band coaxial traps, wire type, impervious to ultra violet and moisture. Use our simple calculator to determine approximate dimensions of materials needed to build a 3-element Yagi/Uda antenna, and then shop for your needs on our other pages and select from our inventory of aluminum, fiberglass, coax, connectors, and other parts and accessories for amateur radio and other radio applications. The kit includes sufficient army-surplus ‘D10’ communications wire, consisting of four strands of tinned copper and three strands of galvanised steel wire. What is amateur radio? 2014 52. This makes these antennas work as 1-, 2- or 3-element fullsize beams on 30/40m, as well as 2-, 3- or 4-element fullsize on 6 to 20m. Modeling the 40m W6NL Moxon 5 April 13, 2012 My first practical experience with a Moxon took place over a dozen years ago. This section integrates the previous LG203BA construction plus adding a 40M dipole on the same boom. txt) or view presentation slides online. Further Notes on 40-Meter Wire Moxon Rectangles L. -Temporary wire antennas for 30-40-80m e. 1 MHz so that the beam will cover the band. 15MHz corresponding to the minimum value of SWR (1. STACKING ANTENNAS. Buy new and used Ham (Amateur) Radio equipments | ML&S Martin Lynch & Sons For full functionality of this site it is necessary to enable JavaScript. This is a World Wide Web front end for a public domain program written by W4/VP9KF using PHP. The characteristic impedance of a loop depends on its shape. I performs quite well on 40m to 12m. This is b/c the 40M dipole is very close, 24" away from the driven element. W1/Eastport, ME – Bay Of Fundy. 850-329-8783 6 Band hexagonal beam antenna covering 6, 10, 12, 15, 17, and 20 meter bands shipped to your door for only $600($540 + $60 shipping) The NA4RR Hexagonal Beam (commonly referred to as the hex beam) is a popular antenna based on the G3TXQ design. The kit includes sufficient army-surplus ‘D10’ communications wire, consisting of four strands of tinned copper and three strands of galvanised steel wire. Wire Antenna for 75 and 80 Meters -- From Ross W1HBQ 40M/80M Trap Dipole -- From QRZ 80/40 Meter Vertical From EI7BA 80 Metre Slinky Dipole For QRP - From M0WYM 80 Meter Inverted Vee From GERRY VE3GK 80 Meter Antenna -- Reduced Size For Small Lots 2 EL SHORT BOOM 80M YAGI From VE6WZ. I've build mine on a 10 meter heavy duty fibreglass pole. 5 feet long) with high quality components used throughout. Dec 07, 2017 · Mini Horse Yagi (portable 3 element wire beam) Short boom Yagis from Raibeam Moxons. Moxon Calculator. Divide the wire length shown in the table below for the desired band by 3 to determine the size of the triangle. We made it a raised radial system for a) a quick match to 50 ohms and b) it needs to be a “field” system. I also thought I had seen just about everything that could happen or go wrong at a field day site. This covers 160m, 80m and 60m. Topography is basically flat. It is a directional antenna that provides great performance and does not require a full scale, expensive tower. Antenna Repairs are also available. 5KW power for configurations with 30m Elements diameters 50-45-40-35-30-25-20 Weight 12kg Coil in aluminum tube for a perfect mechanical. Ever wondered what would happen if you combined a 40M rotary dipole with a fixed-position reflector or director element?. Click Image For Larger Picture D-4 You can mount them high and away from the trees for better performance than a wire dipole. The elements are loaded Capacitively which shortens the overall length while still maintaining a good gain, F/R across the 40M band. This is a World Wide Web front end for a public domain program written by W4/VP9KF using PHP. I poured myself a beer and soon the contest started. This strong yet lightweight wire is used to make the driven elements in addition to a number of ground radials. M0ICR - Radio and RF Electronics Australia on 40m, 30m and 20m The antenna was fairly low to the deck (just a wire moxon) but I did crank up the power a bit. An overview and where it all started 2. Circumference = ~135 feet trim tune to 40M and Harmonics Feed Point = 130 R + 0 j at 40, 20, 10, 6 M (measured) Current BALUN 4:1 on ground at Pergola (33 R + 0 j ) Tuner at T/R in Bandstand for 30, 17, 12M 1:1. Lucky me!!! No better way to test the homemade 10m Moxon antenna then with current conditions. Apr 17, 2019 · Next on deck is a 30 foot push up mast kit from ebay. Updated 02-Oct-2011 10:49 [back to W1TR Antennas and QTH][back to W1TR Home]I recently happened upon a Tri-Ex LM470D 70 ft crank-up tilt-over tower which I got from a former UConn Marching Band classmate (K1YR) in the New Haven area (he and his wife retired and moved to Hawaii but couldn’t take the tower). Louis Vertical-- By Dave Gauding, NF0R DDRR - for 40M -- Directional Discontinuity Ring Radiator Antenna 40M Beam -- From QRZ. It's also a wire beam, it seems to have slightly more gain than a Moxon square and is easier to build. The antenna was designed "on the spot" and constructed very quickly using 2x 10m fiber masts. The G0KYA EFHW – an end-fed half wave monoband HF antenna, plus two multiband versions (New!) A practical, cheap monoband or multiband (new!) vertical antenna that is great for DX and very cheap to build. moxonantennaproject. the crossbar in the middle is 4 meters in total, and the 2 small ones at top and bottom are 50cm long. Jul 30, 2014 · And I also like the Moxon's f-b performance for such a small and simple 2 el beam. Green is the 15m long wire bicone antenna mounted in the loft Yellow is a 40m long doublet fed with 450 ohm ladder line and an auto-atu at the base Blue is the 40m long ladder line fed doublet strapped as a Tee and fed against 16 ground radials using an auto-atu at the base. Plan to use this for additional testing of the 2m Moxon and may install as permanent mast if all goes well. Something to tweak/experiment with possibly using some thicker wire to increase the bandwidth. Detail of the end‑fed feed of a VHF log‑periodic dipole array. Some Notes on Lower HF Wire Beams L. A mediumwave/longwave amateur loop antenna. May 20, 2015 · A 2-element Moxon yagi (or the Moxon rectangle) has no more gain than a conventional 2-element yagi. OptiBeam Antennas products from Optibeam online. We made it a raised radial system for a) a quick match to 50 ohms and b) it needs to be a “field” system. Nov 11, 2008 · 7 MHz = 10. 20M Moxon up 5M that needs to be up another 15M , 10M Moxon up 10M, 6M ground mounted vertical with a ground matt, 2m/70cm vertical up 7M, 160-15M T2FD up 12M, and the 15M Moxon is up about 12M high. 525Mhz, so this will give you a little better SWR towards the band edge. Following is the description of the 40m array we used at SY3M. Even that we knew we can not compete with the stations in the west and south of the Europe, we enjoyed the contest and team spirit for whole weekend a lot. Moxon Calculator. W1/Eastport, ME – Bay Of Fundy. So we had to use 2 element MOXON. With proper sizes this antenna can be used also for other bands with very good results!. STACKING ANTENNAS. This is b/c the 40M dipole is very close, 24" away from the driven element. Another 9 Element VHF Yagi Design. This section integrates the previous LG203BA construction plus adding a 40M dipole on the same boom. It hit me quick. I was able to choose a coil tap for reasonably low SWR on 30m with a "hat collapse" setting pretty far above 40m. Steve Nichols G0KYA Contents 1. A new, higher power, remote antenna coupler was installed on the Inverted-L, along with new wire and also side guys for the fibreglass pole. 40M Reversible Moxon - Moxon antenna project, each side is 51 feet long and the turned in sections are each 7. Whilst we do not boast next day shipping and during busy times there may be a waiting list we take care to build each Hexbeam to the highest standard each and every time. 284 - Mini-Horse Antenna 10dB-Gain for 40m-to-2m. 2m Moxon dipole for satellite operation. 6-40m) and with the UB-50 beam, the driven element (the radiator) is switched when operatinf on 30 and 40m. All components were mounted on a 1/ 8 inch thick plastic panel, which, in turn, was installed in a watertight housing that had seen previous life as part of a shipboard antenna system. Only 8 el wire yagi for 40m burnt out. Jun 20, 2011 · Moxon Invented by Les Moxon, G6XN, the MOXON is a stealthy gain antenna that's inexpensive and fun to build. The author isa keen enthusiast of the Moxon Rectangle antenna, invented by the late Les Moxon, G6XN. Note ** Baby Bobbers can not be upgrade to a 20,17,15,12 meter. In this year three 4-Square-Arrays were mounted: 20m, 30m and 40m 4-Square-Array for 20m, behind 2-ele-wire-beam for 10-15-20m (Moxon-style) Turnable 2-ele-beam for 10-15-20 18m glassfiber-pole for vertikal 80m - including homemade aerial coil also for 160m Only receiving antenna for 80m (K9AY-Loop-Array) Tina, DG1ACZ, at the 80m-station. Will wire one up for 1:1 and the other for 4:1 for wire antenna experiments. You will find. 40m 2-element Wire Beam: Parasitic Phased Array Conversion Updating the 4th-Generation Stealth All-Band Electrically Reversible Directional Array Jeff Blaine – ACØC Presented to the KC DX Club – 25 April 2011. 20m wire moxon beam, coax fed, supported by crappie poles. Here we have collected some links to building instructions for 11m antennas on the Internet. Each Hexbeam is built correctly for your peace of mind and the waiting list is a testament of our reputation and build quality. Mar 24, 2019 · Here are some ideas on wire beams of various types. Other wire types and sizes will work just as well of course, but you will end up with different loop sizes. Discover (and save!) your own Pins on Pinterest. The Moxon is a great little beam. This started with an email from Steve VK6VZ asking about adding a "moxon" 40M yagi interlaced with my extended boom LG203BA. Then I dangled a counterpoise behind a downspout where it wouldn't be seen, and tuned it all with a random wire tuner. HF Tower and Beams. I like to use wire with a soft insulation and loop the extra length at the far end back upon itself and tie it in an adjustable knot. The SWR is 1. The 10m beam sits between the 40m Moxon above and the 17/30m dual bander below. 65e-4 as the wire radius in the geometry of the model. There are 44 buried radials that connect between each vertical plus chicken wire ground screen not connected to anything. MMANA-GAL calculated results before, and after, optimizing the vertical wire are displayed below. OptiBeam Antennas products from Optibeam online. 20m wire moxon beam, coax fed, supported by crappie poles. Something to tweak/experiment with possibly using some thicker wire to increase the bandwidth. • A large “X” frame to support an all wire MOXON For me, these options are either too large, heavy, untidy, and would have high wind load cross section. 005 / 13) – 1mm copper wire with 0. Well, it does if you consider the alternative for 80/40m operation. 4m vertical parts and 20cm separation between the 2 ends of the horizontal parts. Jun 20, 2011 · Moxon Invented by Les Moxon, G6XN, the MOXON is a stealthy gain antenna that's inexpensive and fun to build. As I had very good results with a wire Moxon put together from telescopic fishing poles and wire I thought I would make something a bit sturdier. Based on RBN comparisons with Locals prior to the dipole coming down and after re-placing it with the Moxon, it appears that the Moxon was doing what it was sup-posed to. QSOs were less than our expectation, which was caused by antenna trou-bleAH2R. tie -wraps to secure the wire to the frane. That’s my quick summary of how to model wire with insulation in 4nec2. This resonant 15m, 20m, 40m antenna, which also tunes to 6m, 10m, and 17m, will work DX on the high bands. 2x USRP SDR units plus extra DVB dongle for RX only. Following is the description of the 40m array we used at SY3M. All components were mounted on a 1/ 8 inch thick plastic panel, which, in turn, was installed in a watertight housing that had seen previous life as part of a shipboard antenna system. Pagina dedicata agli schemi di accessori di varie marche. The End Wire Size can range from 16 AWG to 12 AWG. I like to use wire with a soft insulation and loop the extra length at the far end back upon itself and tie it in an adjustable knot. QUAD or LOOP ANTENNA 19-01-2011. Feb 27, 2018 · John Jacobs, host of the Field Radio Podcast, returns join in a discussion of basic DIY HF antennas. 5-6 dbi of gain and a 25db front to back ratio. The bent Elements cause very little performance lose. Stacking antennas comes down to: combining two or even more than two antennas together so that they together form an Array. The idea of using a low mount dipole, enhanced with reflector wires directly beneath the dipole, on the ground, appears to be a very good approach to creating an NVI specific antenna for local HF operation. The bent Elements cause very little performance lose. So we have our cake and able to eat it also!! Extended LJ203BA + 40M DP - 40 Meter Performance In this series, the 40M dipole is tested @ 7. Here, I've modeled a 3-turn loop 3. You now have hard drawn copper wire that won’t stretch. The theory works for ANY frequency you choose, from below 160 meters to way above 440 MHz. DATE FIRST LICENSED FEBRUARY 12TH, 2014. 70cm Moxon dipole for satellite operation. using wire to create a nearly rectangular antenna. 6" long and still has 6. The chicken wire helped hold the radial wires on the ground – and then the grass grew over the wires. I poured myself a beer and soon the contest started. moxonantennaproject. Bob Wood wrote: V Beam antenna question I want to put up a 40M V Beam antenna to enhance communication in one direction only. With the beam antennas which have elements with different length (3-Elem. Jun 25, 2014 · The 2-Element-Yagi with reflector has normally a 0,2-lambda-boom and an impedance of 50 W. The 6 meter J-Pole is tuned for 52. 28 x 492 / fMHz - in feet. If I could fit a 40m moxon on this roof (I built one and tried, but too dangerous here) I would go with a fixed 40m wire moxon over either vertical ideas 7 days a week and twice on Sunday. Using Premium Teflon silver. I’m pretty happy with it – VSWR < 1. Sep 02, 2017 · You can build it for 1/3 the price of a buddy design, or just the cost of wire, if you have a tall tree. However 80m brings me outside Europe, on 160m it’s a real NVIS antenna. Cebik, W4RNL. Notes: • Spacing is the Distance from the Boom to the 'Gamma-Match'. In addition, there are 3 antennas nearby — a 40m wire moxon, a 40m doublet, and a 160m inv-L — and I’m sure that coupling and interference from those is felt more by the K4KIO given it is basically surrounded by them and each of them is within 40 feet. You can find all types of antenna's; quad, moxon, yagi, dipole, hex-beam, verticals and even mox-quad or quagi. I hope it helps. OptiBeam Antennas products from Optibeam online. The material used for the elements is 3. - Each end of wire elements has to be prolongated by some 50/70cm of non conductive rope. this will allow to fix the rope to the mast while keeping antenna wire elements end at their correct spacing (see antenna design above). 40M Reversible Moxon - Moxon antenna project, each side is 51 feet long and the turned in sections are each 7. 2dbi gain and 20db front to back ratio. Long wire dipole with 127 foot legs, window line fed. This makes these antennas work as 1-, 2- or 3-element fullsize beams on 30/40m, as well as 2-, 3- or 4-element fullsize on 6 to 20m. Forward gain almost identical to that of a two-element Yagi but with better F/B ratio. Many of the VDA designs are based on the Moxon principle. Something to tweak/experiment with possibly using some thicker wire to increase the bandwidth. i want to move up now hi hi. The material used for the elements is 3. The GW3YDX Super Moxon Adding extra directivity to the Moxon Rectangle for 6m, 4, and 2m PHOTO 1: Completed 4m GW3YDX Super Moxon. As for 80M I now have an inverted V hanging from my Hummel tower, quite happy with that one as well. WINDOM OCF MODELS R2010021 EAntenna 40OCF1,5 OCF WINDOM 40m 1,5kW. Buy new and used Ham (Amateur) Radio equipments | ML&S Martin Lynch & Sons For full functionality of this site it is necessary to enable JavaScript. I performs quite well on 40m to 12m. Apr 17, 2019 · Next on deck is a 30 foot push up mast kit from ebay. the crossbar in the middle is 4 meters in total, and the 2 small ones at top and bottom are 50cm long. 79 dBi or 2. I’m pretty happy with it – VSWR < 1. En principio la idea es un “random invisible wire”, pero estoy pensando en hacer en el futuro unos “bigotes de gato” con diversas medidas de hilo invisible optimizadas para según que bandas, altas, y bajas, (un hilo para 40m, 80m y 160m, y otro hilo para las restantes bandas), y lanzadas en diversas direcciones. Following is the description of the 40m array we used at SY3M. Recently, I also tested a horizontal rotatable dipole at 16m. The SWR is 1. 50 1MHz to 90MHz bandwidth. From the limited design information that I have found, I am. ohm ribbon (or 34 feet of open wire feeder) and then coaxial cable to the antenna coupler. Moxon Calculator. For an inverted-VEE or sagging dipole, use two wires and a third, short wire in the center for the feedpoint. For these reasons, after some historical examples of elevated wire ground systems, I'll spend a lot of time analyzing ideal systems and then move on purpose of this article to the original was that asymmetric radial currents and how to avoid them. 6-40m and 4-Elem. The bent Elements cause very little performance lose. 005 / 13) – 1mm copper wire with 0. The material used for the elements is 3. I think for a lot of people 40m and below (80 - 160) are more regional more often (although sometimes distance). 4 VSWR No tuner required for 40, 20, 10, 6 M Wire #22 AWG Bell Wire Not pulled just placed in trees with fishing pole. 5 feet high by 4. ln its basic form it'seasy to build and is a great performer. Random Wire The Marconi or random wire can also work, satisfactorily, for a home station. You can’t really blame your neighbour for being concerned. 59 @100w -- $0. In the 15 year’s I’ve held my amateur radio license, I’ve hardly ever missed a Field Day. It works like a charm, very happy with that one. Although there are some commercial Moxon beams available made of heavy aluminum, I don't know of any commercial wire-version of this antenna. the newer CC XM240 40M Yagi to a Moxon design. 2-el 10-17m DX-pedition yagi 2013: 50 3-el 50MHz DX-pedition yagi 2013: 51. Feb 04, 2013 · – 15 meters above medium ground (0. Essentially it consists of two metal or wire elements: (1) a driven element with its ends bent back towards the reflector (2) which has its ends bent towards the driven element. Ground loss and wire loss were set to zero (free space condition). You will need 2 pieces of wire, one 9,4 meters for the driven element and one 10,4 meters for the reflector. Apr 07, 2015 · Alex, That’s a great idea with using a bolt/nut combination to fine tune the antennas. All information, images, and documents on this website are the sole property of Hygain Any reuse or redistribution of the contents of this website are strictly forbidden without authorization from Hygain. The second is the Optibeam OBW 10-5-10 which is more of a Moxon configuration with 2 elements for each band, wire elements and no traps. ln its basic form it'seasy to build and is a great performer. Best propagation since 2003, definitely! I took the chance to do one on one tests, and results are a bit surprising in a positive Continue reading Nice propagation to test the Moxon antenna →. wire beam antennas DX4. Oct 28, 2019 · When I lived in a 3rd floor apartment, I used to use a slingshot to fire a fishing sinker with a 28-gauge magnet wire attached, across the parking lot under our balcony into a wooded area's trees. Mine turned out to be 900mm so the longest Moxon element required a joint. However 80m brings me outside Europe, on 160m it’s a real NVIS antenna. Although there are some commercial Moxon beams available made of heavy aluminum, I don't know of any commercial wire-version of this antenna. TAK-tenna 40 to 10 meter Multiband Antenna. The completed network is shown in Figures 3 and 4. The Horizontal Loop, also known as the Loop Skywire Antenna, is an old but very effective design. Following is the description of the 40m array we used at SY3M. Short Dipole for 80M -- From 4S7NR. W1/Eastport, ME – Bay Of Fundy. So we had to use 2 element MOXON. 150 - Pyramidal Wire Antenna for 80m. If you live near water, or are planning an expedition near water, you might consider using a Vertical Dipole Array (VDA). Jan 22, 2017 · Thanks to Paul H. However 80m brings me outside Europe, on 160m it’s a real NVIS antenna. This is a good impedance for wire- beams. 5 Band Hexbeam. I've build mine on a 10 meter heavy duty fibreglass pole. For the 70MHz band, it can be realised with a couple of lengths of wire stretched over a lightweight frame made of garden canes, for instance. R2010015 EAntenna DBZ160 DOBLE BAZOOKA 160m. That something else was a 2-element Moxon, an antenna which I've seen used with great success on 40M by many hams. DX Engineering’s DVA-40-P 40M Phased Array System. It is a directional antenna that provides great performance and does not require a full scale, expensive tower. This antenna is made for the DX'er or Contester that is looking for an antenna to work across the globe. The feedpoint was placed at the antenna's current maximum, located in the middle of the bottom edge of the middle turn. The End Wire Size can range from 16 AWG to 12 AWG. The G3TXQ Hexbeam, quality worth waiting for. The 10m beam sits between the 40m Moxon above and the 17/30m dual bander below. Simple Quarter Wave Ground Plane. PK's Loop Antennas bring clear & long range AM radio reception for homes and commercial use. 151 - Random Wire Antenna All Bands. The hexagonal beam (or known by many as the hex beam) has become a wildly popular antenna. txt) or view presentation slides online. A further one qso back on 40m before I wimped out and pulled down the dipole, putting the 2m moxon on the pole for 3 further 2m fm QSOs Tiny moxon antenna on the pole After numerous ground strikes from lightning, getting visibly closer, I hastily decided enough was enough and packed up, apologies if I missed anyone. Jun 11, 2014 · Building the 6 Meter Moxon Antenna. Welcome to Spiderbeam - your specialist for fiberglass & portable HF antennas Spiderbeam was founded in the year 2000 by DF4SA, sparked by his passion for highly competitve radio contesting during portable, outdoor operations, fielddays, DXpeditions, etc. Michael Holmslykke 8,030 views. The document has moved here. A mediumwave/longwave amateur loop antenna. If you choose to build this project take. 15 dB isotropic + about 5 dB ground reflection). I've had the same low resonant frequency experience on a 6m Moxon made with insulated wire for a small portable set up. (2 inch diameter; 14 gauge wire; 10 t at 8 tpi). The Horizontal Loop, also known as the Loop Skywire Antenna, is an old but very effective design. Louis Vertical -- By Dave Gauding, NF0R DDRR - for 40M -- Directional Discontinuity Ring Radiator Antenna 40M Beam -- From QRZ. If 20m and 40m were on the same tower, one would be a compromise from height at a minimum. * All Prices Quoted are in Australian Dollars & valid as of June 2015 & are subject to change * *Testimonials*. The larger the wire, the wider the bandwidth. 1 shows the detailed dimensions. Apr 25, 2013 · Moxon antenna rotatable for 6m 10m 15m 17m and 20m - Duration: 0:53. We also sell Quality AM/FM, DAB+, shortwave and longwave radios. The DX-EE would tune up and both 40m and 80m, and it hears just as well as the V on 40m. Moxon Antenna Project Website; Lightweight wire moxon; Notes on construction; Trapped 40m moxon; Loaded 40m moxon; Trapped multibander moxon; 17+20m Moxon; Vertical wire moxon; Moxon beam notes; Moxon calc; Wire moxons. Ground loss and wire loss were set to zero (free space condition). After starting in this way and getting involved with various EMC problems, it is often found that planning permission for a horizontal antenna is refused. Offering the maximum common mode choking possible with over 30dB even at 1. A half wave dipole on an 80m is about 130 feet or 40 meters long. The Horizontal Loop, also known as the Loop Skywire Antenna, is an old but very effective design. Jun 25, 2014 · The 2-Element-Yagi with reflector has normally a 0,2-lambda-boom and an impedance of 50 W. There are also low dipoles for 40M and 80M for high angle radiation that perform very well for local contacts. 28 x 492 / fMHz - in feet. These are closed loops that are one full wavelength long. I like to use wire with a soft insulation and loop the extra length at the far end back upon itself and tie it in an adjustable knot. Based on RBN comparisons with Locals prior to the dipole coming down and after re-placing it with the Moxon, it appears that the Moxon was doing what it was sup-posed to. Moxon: The 30ft vertical is a poor performer on 10m, my favorite band. N6BT Bravo 40M Vertical Force 12 -40M Sigma Vertical Dipole 40M Verticals Over Average Ground 27 ft + 6ft = 33 ft 24 ft + 6ft = 30 ft 40 20 30 17 15 1 2 10 40 20 30 17 15 1 2 10 HF Antennas for All Locations Moxon, G6XN 1983 p121. Divide the wire length shown in the table below for the desired band by 3 to determine the size of the triangle. Jun 16, 2006 · ok ive been operating with an inverted v for about 3 months now and haveing decent results. Ever wondered what would happen if you combined a 40M rotary dipole with a fixed-position reflector or director element?. Updated 02-Oct-2011 10:49 [back to W1TR Antennas and QTH][back to W1TR Home]I recently happened upon a Tri-Ex LM470D 70 ft crank-up tilt-over tower which I got from a former UConn Marching Band classmate (K1YR) in the New Haven area (he and his wife retired and moved to Hawaii but couldn’t take the tower). 6-40m) and with the UB-50 beam, the driven element (the radiator) is switched when operatinf on 30 and 40m. The HexKit Hex Wire Beam baseplate hub has been used in over 1 700 homebrew Classic Hex Wire Beams and the G3TXQ Broadband Hex Wire Beam in the past seven years. CobWeb Aerial Back in the summer of 2012, I decided that I wanted to build a CobWeb. Moxon Calculator. 40M Shortened Loop -- By Ben Smith, W4KSY Via Antennex NVIS Roost Emergency Antenna Kit By Bob W2IK WB0NNI 40 Meter Linear Loaded Vertical K5OE Antennas -- HF Antennas 40/80/160 55 ft Vertical St. I was directed to the excellent Moxon antenna project website, which even includes an automated design tool to work out the dimensions for the chosen frequency. A 5/8 wave antenna on 144 MHz is 15/8 waves on 440. This strong yet lightweight wire is used to make the driven elements in addition to a number of ground radials. Amateur Radio (G3TXQ) - Coaxial Antennas. 40M Shortened Loop-- By Ben Smith, W4KSY Via Antennex NVIS Roost Emergency Antenna Kit By Bob W2IK WB0NNI 40 Meter Linear Loaded Vertical K5OE Antennas -- HF Antennas 40/80/160 55 ft Vertical St. If you want to get really technical, Vf depends on the wire you use, but this seems close enough for ordinary speaker or lamp cord. 286 - Two Elements Sloping Delta Loop 8dB-Gain for 10m. That something else was a 2-element Moxon, an antenna which I've seen used with great success on 40M by many hams. The small Far. A 40m wire beam is possible, but it can be a real MONSTER, and should not be thought of as small or light. This 2% represents a 300kHz frequency shift in resonance on the 20m band. The characteristic impedance of a loop depends on its shape. As you probably know, a long wire radiates with multiple lobes, the largest of which are toward the ends of the wire. The only other antenna I have is a Alpha Delta DX-EE (a 40-10m parallel dipole which is shortened on 40m, total length 42 feet). And Boy, does it. Oct 22, 2016 · Occasionally 40m is good for this too but you need beans and height and so on. Following is the description of the 40m array we used at SY3M. d) I'm interested in a 30/40m version - in the attic, not outdoors, on a separate coax from the 20-10 antenna to avoid problems with harmonics. 15 dB isotropic + about 5 dB ground reflection). Sep 02, 2017 · You can build it for 1/3 the price of a buddy design, or just the cost of wire, if you have a tall tree. Use open wire or ladder line to feed the loop, employ a wide-range antenna tuner, and it becomes a wonderful multi-band antenna. From the limited design information that I have found, I am. It is a directional antenna that provides great performance and does not require a full scale, expensive tower. 79 dBi or 2. At any rate, my testing “protocol” goes something like this:. Jul 02, 2014 · My Field Day 2014 Adventure. 4 to 1 Balun. Topography is basically flat. With low activity on those bands, I decided to use the materials for something else. So, to determine a short point, use 0. I was involved with a Moxon for 80 meters. Cebik, W4RNL. 2dbi gain and 20db front to back ratio. 152 - Multiband Dipole Antenna for 80m, 40m,15m, 10m. 5/5click here to see their performance reports. Moved Permanently. dipole system by adding a reflector and a director; it was the beginning of the 40m 3 elements inverted V wire beam story. This is b/c the 40M dipole is very close, 24" away from the driven element. Using Premium Teflon silver. Low Band Antennas at W3LPL High Performance Transmitting and Receiving Antennas for 160, 80 and 40 meter DXing and Contesting 80 Meter Wire Moxon Rectangle. If 20m and 40m were on the same tower, one would be a compromise from height at a minimum. ( The 80 meter version was used for Field Day 2006 in Olympia, WA by the Olympia Amateur Radio Society) If it really has 11. All information, images, and documents on this website are the sole property of Hygain Any reuse or redistribution of the contents of this website are strictly forbidden without authorization from Hygain. The Moxon antenna was designed by Les Moxon G6XN and is an optimisation of an earlier Australian design for a compact 2el beam. VHF Portable Dipole. • A large “X” frame to support an all wire MOXON For me, these options are either too large, heavy, untidy, and would have high wind load cross section. All the antennas in the Array are putting in the same amount of effort to achieve a stronger signal than the single individual. R2010013 EAntenna DBZ40 DOBLE BAZOOKA 40m. This antenna is made for the DX'er or Contester that is looking for an antenna to work across the globe. w1zy s 40 meter moxon is the product of 9 months of experimentation the final array is reversible and constructed from no 12 insulated wire fed through two rf current baluns. 289 - Sardine Tin Opener (STO) Antenna for 160m,80m,40m.