4 Elements Lfa Yagi 27 Mhz Building Cb Antennas. 11m / CB Yagis. Item no : ANT065. 6MHz LFA2 (bent reflector) Yagi. Total length of copper tubing requried for antenna elements: 6' 5" Total length of wood required for boom: 2' 8" ELEMENT LENGTH (in. Log ( ('amount of elements' - 1) * 0. 06dBi with a front to back (F/B) ratio of 30. It is also devoid of information on the physical design of Yagis. 77 dBi gain and a front back gain of 17. I’ve added yet another antenna to my aluminum collection. 5inch boom on 11 meter band. Here we have collected some links to building instructions for 11m antennas on the Internet. The 3 element Yagis on HamSphere 4. 6 el. This antenna calculator uses all four and then divides the results by four giving the average. The G0KSC LFA Yagi represents a major step forward in the development of the Yagi Antenna, it provides a low-noise front-end for your radio so you hear more weak signals while at the same time maximising all round performance. Fill the hole with hot glue and tap the bolt/nut into the hole. These values represent a range of 4. Amazon Affiliate links for these Design Details and Drawbacks The element lengths and spacings are a combination of info from the ARRL Antenna Book section on 2 meter Yagi antennas, and from experiments with a field strength meter and different length elements and spacings. Make a 4″ X 4″ X 1/8″ plate of aluminum for your boom to mast plate. Dick Sander -K5QY 110 Starlite Drive Murphy, TX 75094 k5qy1@verizon. The Driven Element is isolated from the boom, the Reflector and Director are direct connection with boom. The final dimensions for the 6 meter antenna are as follows. Enlarged Figure 6 with key dimensions. I used RG8X for the feed line. Since then it has been a very popular limited space Yagi do to its very compact size. Power Gain = 7. Driven to director 1 = 13. The length is usually 5% more compared to the driven element. 15 =. 1" steel tape measure - similar to Harbor Freight #62462 or Harbor Freight #62464 (just be sure it's metal!) You will cut the tape measure to create: 41-3/8" length. Boom Length, 1,000 W Power Rating, Each. 25. You will find one decent design that will use the pieces you have in the article "7 dB for 7 bucks", by Nathan Loucks, WB0CMT, which has a basic construction as follows: The article recommends that if your radio is further than 15 feet you'll want a good low loss cable such as RG-213. 3967. 89 dB. This 6 element beam was designed using the free. 2 elements YAGI for field day operation. On Air Testing: 17 meter Yagi vs W5GI Mystery Antenna I have two 17 meter setups, one is a multiband dipole. A quarter-wave choke of coax is grounded at the socket. This time it’s a 3-element six meter yagi, the M2 6M-3SS. Aluminum plate 0. A two element 10-Meter beam designed for portable or permanent installation. 00. When all was said and done, my SWR readings were 1. S Department of Commerce and the National Bureau Of Standards released a document which helps in Yagi Design. 25 of the wavelength. one or more director elements. Director 2 = 22. Nov 14, 2020 · An antenna for 6 meters. 12dB on a boom length of 17 3/4 The 5 element Yagi series have excellent DX capabilities (within limits of propagation) even on top bands and middle bands including 30m and 40m bands. ) SPAC. 3/1. Sad but true, useable aluminum tubing in small quantities is expensive. To create a wide-band 3-element Yagi requires more boom length for a given gain than used in the high-performance designs we surveyed last time. wide-band Yagi designs for 10 meters at 28. My beam has a good mix of gain and F/B (Mine is designed for 27. 125MHz as the center frequency which is in the SSB portion of the 6 meter band. The antennas are feeded with the DK7ZB-match. This two-element Cubical Quad antenna is designed for use on either the 10-meter ham band or the 11-meter Citizen's Band. 1 to 0. By placing the driven elements close together, we can use open-sleeve coupling. What, then, is the rationale for such a design? The fundamental reasons for going to a wide-band design are two: 1. This link has been on our site since Wednesday Nov 24 2010, and it has been clicked on 4047 times. Apr 1, 2020 · Six Meter Yagi — M2 6M-3SS. Sales price without tax£2,495. The Moxon Rectangle comprises of 2 elements, a driven element and a It’s been at a field day for several years and holds its own on the band. 2) + 9. Searching for a design on the internet, I came across the usual suspect Martin, DK7ZB and followed one of his designs, the 4 Element 50 Ohm Yagi with 2. 75 inches. 9-27. AC6LA Software Active Element (coax) and spacing lengths for 2 meter version: (low end of band) Looking from left to right in drawing above. Add to Cart Details. Lj 115 5 Element Yagi 10 11 Or 12 M Dxsupply. 02 inches. Note : It is quite possible, that other calculators deliver slightly different results. boom, but weighing only 8 pounds, 2M12 beams offer nearly 15 dBi gain, and are a great choice for accomplished enthusiasts as well as hams new to the world of VHF beams. Reflector = 24. Maybe walking around with a 2 meter HT will indicate if its detectable. The Ultimate To 11 Meter Cb Antennas. These beams have about 7 dB gain over an inverted vee at the same height by itself, and are based on an OWA design from the late W4RNL. It uses an 11. This antenna is designed for amateur band frequency for both VHF (2m) and UHF (70cm). 50 inches. I said you are limited on element spacing if you use my design (Moonraker 4 parts), because you will have to stick with the Moonraker 4 element spacing (S1 - 65", S2 - 56", S3 - 65"). At 2-meters, we can use uniform element diameters for This design weighs in at 2. Boom made from 55 to 50mm tube. The older "Quick Yagi" program was used in its design. Nov 19, 2018 · Build your own 2m/70cm 3 Elements VHF by 5 Elements UHF Yagi antenna with excellent gain for both VHF and UHF operation. Use a lot of glue. 3 Yagi-Uda design dimensions can vary significantly with differences in element diameter, boom material, element-to-boom attachment method, and other factors that are ignored by this simple calculator. With 12 elements on a 19 ft. 0 have all been meticulously designed to deliver gross price. We use an interpolation approach. FREQUENCY COVERAGE = 14. 3 Element Yagi for 11m at 95 feet heigh. 16 wavelength. 5 - 8. Frank A 2 Element 26. 5 MHz SWR to 1. 0547 wavelength or(WL) (in meters). Antenna, Yagi Beam, 2 Meter Hi-Lo Cross, 20 Element, 11 ft. (for group builds, use 10ft length - Lowes #23966 or 2m crossed yagi antenna. The length of a reflector for a two-element Yagi with 0. Dimensions,Check out the Ham Radio Adventures Merch shop: https://shop. The EF0604S is a compact 4 elements yagi antenna plan for six meters band featuring 8. So far it received 11 votes for a total score of 7. 1 to 5. 1 SMA connector. 2-meters is filled with Yagis and variants that provide mediocre gain and operating bandwidth on longer than necessary booms. 300 (speed of light in meters)/146. Yagi Antennas For 27 Mhz 11m. 250 inches. And the physical design of Yagis is a subject beyond my limitations! What this article does do is provide a truly optimized 4 element Yagi design for the 11 meter “freeband” DX operator. Martin has many designs for many antennas and you will definitely find what you want. 11-element 144 MHz Contest antenna, 6-meter boom. The 3 element mono-band Yagis are by far the most cost effective beam antennas with good gain and excellent radiation patterns. Mount four appropriate size “U” bolts and saddles on the four edges of the plate. This is a director-driven (for max gain). 107 inch per side Gain 4. Part Number: IVA-18481-LPA3 Not Yet Reviewed DESIGN DATA FOR YOUR YAGI. Here's a cheap, easy-to-assemble, two-element Yagi you can build for 10, 12, or 15 meters. Boom, 2kW, Each. The scale is 1 - 10, with 1 being 2 meter 144 MHz contest portable Low Noise Yagi Antenna PA144-11-6B. Dimensions of a 6-element 2-meter OWA Yagi, using 0. The reflector and director element spacings are equal at 16 inches. 3 Element Yagis Antennas for HF. 25 inches. Details. 3 to 1. Article includes elements dimensions and spacing, along to pictures of some homebrewed examples. The Yagi antenna's overall basic design consists of a "resonant" fed dipole (the fed dipole is the driven element and in the picture above and the second from the left side ), with one or more parasitic elements. This plumber’s delight six-meter yagi being compared and tested against my four element yagi with great signal gain and front-to-back patterns. 295 flat. maco m104c . The scale is 1 - 10, with 1 being In this video I show more of the 2m Yagi build and more close up video of the antenna. Nov 25, 2020 · Building a Yagi in ten minutes using a template within EZNEC antenna modelling software. If you were unable to find a slightly longer length of rod for the reflector you can try using something like these M4 brass couplers to extend the length of the reflector (or all elements), this would additionally provide further tuning capability to the antenna. See More Specifications. Main category is 20 meter Yagi antennas that is about Plans for a 20 Meter Yagi Antenna . This beam antenna is a coax-feeded version of the ZL-Special construction by DK7ZB for 2m, 6m and 10m. Consider a 2 Element Yagi this Antenna season. 6m Antenna Plans. Since an old 5 element version (v1) of my antenna was shown in the July 2011 edition of RadCom, a few people have contacted me asking for some information on how it was constructed. gross price. LJ-115 is constructed of the best quality aluminum tubing and uses a new swaged (tapered) design for 142. 31' boom, which is nearly 1/3 wl long. Do you want a small yagi? You also want the best gain possible. Editor's note: Many years ago, the 10 meter version of this 2 element Yagi was built by myself using much the same construction techniques as mentioned in the article using small aluminum tubing. 81/10. I Googled for yagi antenna design and the second hit came up Front Range 6 Meter Group Jan 12, 2022 Zoom Presentation. Sm2yer Goran S Homepage. 7-element yagis. Despite the relatively small size the performance is excellent. Director 1 = 23. 4 or better, modeled at a height of 20 feet. 8pcs Stainless steel nuts and bolts 20mm length 3mm diameter. (W5GI's Mystery Antenna) Fed through a MFJ tuner. Information based off the manual has lead to the following Dimensions. 5' boom, which is under two-thirds of a wavelength. 78dbd custom made packs down to 90 cm for 2 METER SSB YAGI PLANS FOR SIDEBAND FUN. 20m Boom. To achieve this, the 160m version is deployed at 300 ft (90m) above ground, while 80m version is at 165 ft (50m) and 60/40/30m versions are deployed at 132 ft (40m) heights. The N5WVX 2 Meter 7 Element Yagi with a "Twist". 1 ozs. Yes, I do include 11 meters. a dipole. Yagi 6 Element. 33/10. All dimensions are given in mm on the first figure. 5mm thickness. It will give you about "7db" gain according to the author. Moxon Antenna Plan For 27mhz Cb And Band Operation Please Name My. 3 days ago · Part Number: CSH-A14820T. Antennas VHF-UHF. 0 to 50. 0. Some power line noise does not radiate the noise on the VHF bands. Our results are optimised for gain, but others may be optimised for bandwidth. Total Tax: £499. I then flattened about an inch of the element, and drilled a hole to accept the lugs of the coax. The possibilities are limitless. The Hygain LJ-115 is a five element 10/12 Meter beam antenna designed to give maximum performance. That’s how, about 4 years ago, I decided to build an antenna. The 10-meter band is lower in frequency than the 11-meter band, therefore all elements would have to be lengthened by a small amount to get it exactly right. 7:1 at band […] Version 4 of the portable beam, the ‘PegTenna’! This page contains construction details on a 2 metre 144MHz VHF Yagi beam antenna, designed for portable use. For 6 or 10 Meters. The spacing between the DE and the REF is. 1/2" PVC pipe - 2ft length - Lowes #351125 or 2ft length - Home Depot #253755. For long, high-gain narrow-band Yagis, use DL6WU, or a modern derivative. As revealed in Fig. Some designs went down to 3/8” tips. com in 2 categories. . Ultimate design with with latest professional full-3D electromagnetic modelling software. All these plans use the DK7ZB match. A 2-Meter, 6-Element OWA Yagi. 116-wavelength element spacing should be 18 feet 1/2-inches. Jun 17, 2006 · accommodate the differences. (Not this case). Materials you will need: 1 Aluminum or Carbon Fiber Arrow shaft. MOST SHOWN POWER LIMITED ARE A RESULT OF THE CONNECTORS ONLYMOST OF OUR ANTENNAS CAN BE MADE TO HANDLE 20KW++ CALL OR Read more. 1, the designs I have in mind use three different boom lengths. WL = wavelength(s). The long-boom design, shown for 28-29 MHz, is adapted from an optimized design by K6STI. While you may not have the space for a large array, there is a lot to be gained from simple, 2 and 3 Element arrays. The resource is currently on dxzone. Driven Element = 3' 3" (98. In this design, Tom decided that the element to boom clamps from the original Create Yagi will be reused. Dipole, balun, and “N” connector detail. Even if you do not like the design, the construction methods are suitable to almost any 10-meter Yagi you might prefer. A number of designs had a center 5/8” section, with 1⁄2” tips. According to the program, it has a gain of 11. Materials. But some noises do, its the way the power lines are arcing I believe. Element sizes full size. While you have the parts for a larger Yagi, you indicate A Novel Hidden 2 Meter Design that fools the neighbors! 2 METER DIP-YAG(A stacked pair of vertical dipoles = Yagi! 4 ELEMENT HENTENNA BEAM - N5NNS 2 METER INDOOR DELTA LOOP - K2ZS (Off Site) 2 ELEMENT DIRECT FEED YAGI (Design it for any band) 2 METER 3 ELEMENT PVC YAGI (Direct feed by WB0CMT) QUAG V - HIGH GAIN MULTIELEMENT By WB3AYW - Build it Jun 3, 2017 · 4 el yagi for 50 Mhz. 17. 5mhz for a swr of < 1. , and is predicted to have better than 6 dBd gain! This antenna is for the 2-meter Amateur radio bands and will easily handle 5 watts of the average handy talkie. Only 28. 1. 555MHz). 5 ft. 31. Simple 3 element Yagi Beam Calculator for Amateur Radio. Cushcraft 2M Hi-Lo Cross Yagi Beam Antennas. 11 months: The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". part qty size length description checklist . Yagi design explained in 10 minutes. This 2m yagi uses design data from DK72B’s excellent yagi website. Antenna shares the same design as PA144-11-6BG except for Guy rope support. The calculator creates equal spacing between the elements, which achieves a balance between good bandwidth performance and a decent 50-Ohm match. A 12' boom on 10 meters will yield about 1 dB less gain. An inexpensive 3 element 2-meter Yagi made from PVC and welding rod. An adaptation of the OWA for 2 meters can provide 10 dBi free space gain on a 4. Select number of elements: 2 3. 2:1 at center frequency and 1. However, if the parasitics differ much from 0 11 meter 5 element beam Yagi (27 MHz). 10/11 meter maximum beam. I have found these spacing's to work great for 11 meters. The Yagi consists of 4 elements, one of which is the 50-Ohm driver. The driven element and first director are relatively close-spaced, and I’d recommend spreaders between them especially on the higher bands. 3-Element Parasitic Beam. To build the 4 Elements Yagi you may follow the direction for building the 3 Elements Yagi except that you will Hy-gain LJ-115 5 element 10/11 eller 12 m yagi 9,7 dB gain. Specifications • Forward gain in free space (dBi): 10. Spacing - Reflector to driven = 17. Cut three pieces of PVC tubing. Elements made from 22 to 12mm tube. Figure 2 — 10 meter (28-29 MHz) free-space gain curves for the three wide-band Yagis. Zipped file with all figures and photos. 5 to 31. Slightly Within these constraints, then, lets look at three good designs for 3- element Yagis. A wire yagi antenna for 20 and 40 meters band suitable for outdoor and field day operations. Then run something like the old DOS program YO, to optimise F/B and pattern gain at the centre and boundary frequencies. The antenna has good reflection coefficient and VSWR ratio @ 1. Feb 15, 2021 · On a 24' boom, 5 elements on 10 meters has the same performance as a 5-element 20 meter yagi on a 48' boom, and that is certainly a huge antenna. 5 MHz. net. It was designed and optimized using 144. My planned operation will always be from a push-up mast either in my backyard for the 7 dB for 7 Bucks. 5 cm ) Director = 2' 10. The total coax length for the DE is. Fabricate the Driver: Before you cut the driver element, add a couple 3" to the overall length of the element. 7 dB for 7 Bucks By Nathan Loucks, WBØCMT PO Box 229 Crosby, ND 58730 Need a 2-meter beam antenna, but you're short on cash? You can build this antenna for the cost of a fast-food meal! hen I became active on 2-meter FM, I soon discovered that I needed a beam antenna to hit some of the local repeaters. Pull the bolt/nut out. The element to boom mounting used here may be of use to some as it does not use any polamid mounting / insulating clamps at a cost of 2 euro each ( this is a 7 el crossed Yagi so twelve clamps would be needed ). " The reflector is on the far left in the picture above and the Feb 15, 2023 · Sample plots for 15m 4-element OWA wire yagi. Yagi Antenna Design program by WA7RAI called Quick Yagi (QY4) This antenna progam is no longer supported but you may be able to find it by doing a web search. Use your utility knife to remove any excess dry glue from around the mount. 1-April-2020. 1, Butterfly nut and 1 bolt 18mm length 3mm diameter. When the glue has dried, rotate the bolt (counter-clockwise) out of the nut, which should now be firmly in place. May 27, 2020 · The Yagi antenna is a directional antenna that typically consists of three elements: a reflector. 7 on the 10-meter band. It has a whopping forward gain of 9. The boom and mast are made from 3/4-inch PVC plumberâ A 2" x 11' foot boom was used. M2 Antennas 2M12 2 Meter Yagi Antennas offer the VHF operator a perfect balance between manageable size, weight and performance for the money. The band width for this antenna is about 1. 6/11/2009 5:25:40 am A tutorial on the Yagi antenna with construction of a two element beam for 10-, 15-, or 20-meters. It was installed on a short mast about 15 to 17 feet The Yagi antenna's overall basic design consists of a "resonant" fed dipole (the fed dipole is the driven element and in the picture above and the second from the left side ), with one or more parasitic elements. The HB9CV-Beam is a 2-Element-Yagi with two driven elements and was introduced by Rudolf Baumgartner, HB9CV in the 1950ies. Explore the 12- and 17-meter bands with this small, lightweight Yagi. The gain calculation is based on four formulas to calculate the gain for directional yagi type antennas. The Basic Design. 250mhz as the center frequency which is in the middle of This 3 element 2 meter Yagi is nothing more than an "adjustable match" half-wave dipole antenna (the driven element) using direct feed 50 ohm coax, mounted between the other two elements which are the reflector and the director. This antenna is a plumbers dream. This will be used as reference for the following dimensions. Feb 28, 2000 · We can make life even simpler and cut the feedline needs down to 1 feedline. Larry Morgan, AG5Z. Press Button: Element. See the web page on 2 and 3 Element Yagi Matching. Feet Inches. This 6 meter 6 element SSB yagi was designed and optimized for best feed match using 50. Now find, mark and cut the element in half. The reflector is placed at the rear of the dipole. off each end piece of both the DE and REF. The cookies is used to store the user consent for the cookies in the category "Necessary". 0 dB. ƒ (MHz) λ/2 (ft) =. The main dipole on the middle of the photo has also two (hopefully) identical parts. The dimensions in Table 1should arouse our interest. The reflector is split in two parts, but its overall length is 98 cm. Apr 15, 2024 · The Yagi Antenna Calculator is a practical tool designed to simplify the design process of a Yagi antenna, a popular type of directional antenna used in various applications such as television reception and amateur radio. These pieces will make up the support boom for the antenna. $279. FEEDING = 1 wavelength of RG58U and a 1:1 balun. The spacing of the reflector from the dipole is about 0. Sales price without tax: £2,495. This means that a matching device will be necessary for the driven element, if you want to use 50/75 Ω coax or 75/300/450 Ω Ladder Line. Search 'Yagi design software free'. packing list . 73, Keith WB2VUO. Collapsible tube (shrinkable tubes) Downlo ad Yagi Dimensions Here. ( Cool Elements) Based on the 2 Meter Beam Project by. Dec 5, 2018 · A Portable Three Element 6m Yagi. Prepare and install all elements except the driver. Complete plans and drawings to build a small 3 elements Yagi antenna for six meter band 2 meter 144 MHz contest portable Low Noise Yagi Antenna PA144-11-6B. High gain, low noise and high quality manufacturing. € 700. 4 element yagi for 20 meters. I have given them in terms of inches and wavelengths for convenience. This involves connecting the feedline permanently to the 17 meter driven element and letting it excite the 12 meter element when fed with 12 meter energy. TOTAL WEIGHT (INCLUDING CARRYING TUBE) = 12 lbs. 00 €. Mar 8, 2024 · The first step is to design an approximate prototype, from λ/2 ±5% elements, spaced λ/4. 39 * Math. Building and experimenting with antennas can be an interesting part of the radio hobby. For 11, 15, or 20 Meters. These antennas are very popular in the real world of HF radio as well as on HamSphere 4. G8VR a small Yagi for 50 MHz. 56 inches. Antenna, Log Periodic, Heavy Duty 3 Element Beam, Low SWR 24 thru 30 MHz, BOLPA-3, 11. Because the tubing comes in 8-foot lengths, this worked out to five lengths of assorted sizes. Most parts are available on the World Wide Web or at some larger hardware stores. (Best bang for buck (ARRL)). Let dry. 3 feet. I needed 35 feet of tubing (plus some to fit inside each telescoping joint for support). 95. This calculator assists enthusiasts and professionals in determining the critical dimensions of their Yagi antenna based on . Low noise pickup. The third piece can be any length, it will be the handle for the antenna, so give yourself about a foot or foot and a half. Blue plot is the phased design, black the three element refl ector/director and red a two element Yagi. Yagi Antenna. There are probably a number of freebies available. This is a must-see for anyone contemplating acquiring and installing a 6 Meter antenna system. I had been reviewing the options for a portable antenna. Set the antenna aside for now. cookielawinfo-checkbox-necessary: 11 months: This cookie is set by GDPR Cookie Consent plugin. ƒ (MHz) This page has a variety of calculators that can be used to calculate dimensions for practical antennas for 6, 10, 11, 12, 15, 17 and 20 Meter Yagi Antennas. Added: 05/18/2014. 12-meter Yagi 5-element at 80 ft (12m) The 5 element mono-band Yagi antenna series have been designed keeping in mind the requirements of an avid DXer. Yagi a sup. One piece will be 11 1/4 inches long and the second will be 6 7/8 inches long. Each one gives its own results. Enter frequency: MHz. It's hot weather in Texas in July and Larry Parker, N5WVX, shows us a novel way to make these "cool" elements for a 2 meter Yagi and also his method of building a gamma match. 35-1/8" length. . 070 to 14. 4 feet at 29 MHz, which you can scale to any other Feb 7, 2017 · Step 1. 000(mhz) = 2. In general, 2-element Yagis optimized for maximum front-to-back ratio have resonant feedpoint impedances in the mid-30-Ohm range with spacing values of about 1/8 wavelength and in the 50-ohm range with spacing values in the vicinity of 0. (by YU7EF) Sep 5, 2022 · This led to our plans for some significant 6m antenna upgrades at our station. Mount the boom to mast plate at the center of the boom. two 17-3/4" lengths. The beam’s driven element should be 17. YAGI 27 MHz long boom (27Y6L) The excellent gain and remarkable performance make the SmarTech 6 el. Our planned 6m antenna upgrade consists of the following elements: Install two fixed direction 4-stacks of 3-element LFA Yagi antennas on our 100 ft tower facing south and east; Install one fixed direction 3-stack of 3-element LFA Yagi antennas The resource is currently on dxzone. Driven = 23. This link has been on our site since Saturday Dec 28 2002, and it has been clicked on 11734 times. Some are based on look-up tables, some completely hide their algorithms. Tax amount: £499. A Moxon Rectangle (Yagi) for 27MHz or 28MHz - This antenna can be set for use on either band or 500KHz of each! The Moxon Rectangle was first introduced by Les Moxon, G6XN during the 1950's. 6 in. (David VK3AUU) 3. Google around for yagi antenna design software. 4" (87. The photographs show how the 12mm dia Oct 20, 2020 · The key here is to make sure the noise can be heard on the VHF 2 meter band, so that the yage can be used. 7 dB and a great front-to-back ratio of 25 dB. s. 83. " The reflector is on the far left in the picture above and the The design and construction of this antenna is open to many modifications,and even other designs (TDOA antenna maybe). 2 minutes. So far it received 16 votes for a total score of 5. 5 cm ) Impedance using omoga bridge: 48 ohms at 15 feet off the ground. The tune up procedure, if even needed, will be addressed later. This should lower the 50. This Yagi requires careful construction, and so we might as well use the best materials and techniques for putting it together. The design center frequency on which dimensions in wavelengths are based is 146 MHz. ONLY AVAILABLE UK MAINLAND ONLY DUE TO SIZE 2 Element Yagi 11 27 mhz (sorry no shipping outside UK )due to costs and losses. com in just one category. These parasitic elements are called the "reflector"and the "directors. Many hams in pursuit of ultimate performance take advantage of the smaller size and increase the boom length by 50% or more than 24'. cookielawinfo-checkbox-others: 11 Jan 30, 2012 · The U. Shorten the 3/8" director tip sections from 31. 1875" (3/16") diameter elements. Figure 9. Soldering iron. One design used swaged tubing and 3 diameters, stepping from 1” down to 1⁄2” in 6 teps. 468. The antenna is a Yagi type antenna, so it is composed of one reflector, visible on the bottom part of the figure. Showing 1 to 7 of 7 (1 Pages) Best Yagi antennas for DX on 27 MHz (11 m) CB band. mjvtrdtgsacgozrxepgj