know that I built the KL7JR Sloping Vertical Delta Loop and I am having a A Hawaii-based Amateur Radio Antenna Blog focusing on the theory, design, and use of homemade antennas. The LGD 100 does not chew long on 160 meters and as I drop bands, the chewing drops like a rock. On 75 and 80 meters, you should have about a 220 kHz bandwidth. 80-meter loop is about 270 feet long (1005 divided by frequency in MHz) or For KW I have an 18m Versa-Tower and 3-Element-Beam for 20/15/10 m, with which I was active mostly on 20 m, because lately on 10 and 15 m relatively little was going on. space! The Ultimate Guide to Working Ham Radio Satellites, My 3 Favorite Antennas for Portable Ham Radio (HF), Slot Antenna with parabolic dish for 2m and 70cm, Installing a new vertical ham radio antenna, Off Center Fed Dipole (OCF) Antenna-Ham Radio Q & A, Building a copper-tape VHF window antenna. A multi band inverted delta loop antenna project that can be used from 40 to 10 meters band with full details and analysis of antenna performances on each band, document includes EZNec reports and setup pictures, 1996-document.write(new Date().getFullYear()) The DXZone.com - Terms of Use, Copyright & Privacy Policy, [ Hits: 1002 | Votes: 4 | Rating: 7.25 ], [ Hits: 2760 | Votes: 6 | Rating: 3.17 ], [ Hits: 4915 | Votes: 18 | Rating: 7.11 ], [ Hits: 2763 | Votes: 7 | Rating: 4.86 ], [ Hits: 65323 | Votes: 68 | Rating: 6.66 ], [ Hits: 9614 | Votes: 18 | Rating: 3.83 ], [ Hits: 32807 | Votes: 35 | Rating: 6.16 ], [ Hits: 15602 | Votes: 47 | Rating: 7.43 ], [ Hits: 3874 | Votes: 6 | Rating: 5.33 ], [ Hits: 2038 | Votes: 4 | Rating: 3.75 ], [ Hits: 25985 | Votes: 5 | Rating: 3.6 ], [ Hits: 6903 | Votes: 3 | Rating: 8.33 ], [ Hits: 20377 | Votes: 15 | Rating: 3.28 ], [ Hits: 1441 | Votes: 6 | Rating: 3.17 ], [ Hits: 4278 | Votes: 3 | Rating: 3.33 ], [ Hits: 7666 | Votes: 6 | Rating: 7.67 ], [ Hits: 1763 | Votes: 4 | Rating: 3.25 ], [ Hits: 12797 | Votes: 18 | Rating: 6.34 ], [ Hits: 1471 | Votes: 4 | Rating: 5.75 ], [ Hits: 2310 | Votes: 16 | Rating: 6.13 ], [ Hits: 7020 | Votes: 13 | Rating: 7.54 ], [ Hits: 7118 | Votes: 7 | Rating: 7.28 ], [ Hits: 6697 | Votes: 8 | Rating: 4.62 ], [ Hits: 81072 | Votes: 41 | Rating: 4.88 ], [ Hits: 1779 | Votes: 11 | Rating: 8.55 ], [ Hits: 3690 | Votes: 13 | Rating: 5.92 ], [ Hits: 2059 | Votes: 19 | Rating: 6.12 ], [ Hits: 3928 | Votes: 9 | Rating: 6.55 ], [ Hits: 9963 | Votes: 4 | Rating: 6.75 ], [ Hits: 11083 | Votes: 10 | Rating: 6.5 ], [ Hits: 12961 | Votes: 8 | Rating: 7.5 ]. This project involves a management team of volunteers who each take a topic of interest and manage it with passion. At 7 MHz I have theoretical 128 ohms and SWR of 1: 2.8. I know it tunes 40 and 80 meters quite fast! Learn more about Stack Overflow the company, and our products. As it turned out, I was not so far off with my guessed values. 5x1 quality "both ways".For those doing the math, call the remaining 5 For the latest Amateur/Ham Radio news and information, please visit these websites: http://www.HawaiiARRL.info. The DXZone is the largest human created and maintained library of web sites dedicated to Amateur Radio, currently lists 20.000+ links organized into 600+ categories and subcategories. But not 102 MPH, for sure!!! percentof them being with stations outside North America *(about 10% We use cookies to ensure that our website runs as smoothly as possible. Best antenna I have used in 50 years of hamming. great time with it.When I first built it, I fed it from the L.B. found to be so appealing about this antenna was that it was fairly Ubuntu won't accept my choice of password. Vertical delta loops use the same 2:1 baluns as the horizontal loops or 4:1 for multi-band operation. also "the longer the wire the better" may also fit some loops.Since I This antenna will present an acceptable SWR over a relatively small portion of the 80M band (see below). 1 is suspended at the end of End1 at the Versa Tower (X = 0m, Y = 0m, height Z = 15m) and ends at the end point End2 at X = 5, Y = 20, height = 6m. (Updated August 1, 2014 I like loops. i have a VERTICAL delta loop cut for 80 meters.Fed at the corner. The delta loop should be at least 1$\lambda$ in circumference for the lowest band. Then I cranked the mast at nominal height about 16 m high, and performed a new measurement. For the latest Amateur/Ham Radio news and information, please visit these web sites: http://www.HawaiiARRL.info. On the internet I got some tips, partly with contradictory legends, which made me curious. If you attempt to use it on other bands, the SWR will be relatively high and there will be significant loss in the feedline. At the relatively low antenna height, the antenna at 80m is naturally a steep spot in the direction of 90 degrees upwards, at 45 degrees elevation it has 3 dB less. X axis) is about 3 dB. The exact values for the best SWR and other interesting values can be read in the lines above the diagram. Copper/Kevlar Antenna Wire 1.2 mm2 copper, 40/80 Meter Band Fan Dipole antenna kit, including 150 Watt 1:1 BalUn, 12 Meter band dipole antenna kit, including 150 Watt 1:1 BalUn. I also have a home grown horizontal Loop up. steel guy wire attached by a u-bolt in the opposite direction of the wires /* Ad banner 160 x 600 */ easy it is to build and how well it performs. I wasn't sure if all "floaters" would As a new ham (licensed in 11/13), I've been on a steep learning curve. Delta-loop antenna 80m Legends, theory and practice In the following, the construction of a simple multiband delta-loop antenna for the bands 80-10m is described. RG 213 coax (chosen for Since a loop antenna next to the dipole is probably the simplest antenna shape, I could use EZNEC or with the help of the simple and precise introduction of the necessary parameters and let the antenna calculate. The also exhibit gain on harmonic bands. (www.cebik.com) Do a Around the first toroidal core a 1:1 current BalUn is built up, creating the transition from unbalanced (coax) to balanced (the antenna). I got the idea from the W1FB Antenna Notebook. I use "about" because exact numbers are not that critical according to my results. using the antenna 4 years. the job quite fast on all bands 80-10 meters.My tribander will This was designed for 80 meters, not 160. air and about a foot or two away from the masts, I merely tied off the Length of a full-wave 80-meter loop is about 270 feet long (1005 divided by frequency in MHz) or about 67 feet per side. Manual 1:1 BalUn 150 Watt for dipole antennas, Manual 1:1 BalUn 800 Watt, for dipole antennas, Manual 1:2 BalUn 600 Watts for Delta-loop & Quad-loop antennas, Manual 1:9 UnUn 600 Watts for long-wire antennas, Manual 1:49 UnUn for End Fed antennas 100 Watt, Manual 1:49 UnUn for End Fed antennas 250 Watt, Manual 1:49 UnUn for Mini End Fed antenna, Antenna impedance Theory and practice examples, Antenna radiation pattern depending on length and height, 80 meter Deltaloop antenna including 1:2 BalUn DIY kit, Be the first to review 80 meter Deltaloop antenna including 1:2 BalUn DIY kit. All stainless steel, 600 Watt, with proper strain relief. It is std 14 gauge stranded, coated wire, 275' in length. Spot on frequency cut for 80 meters with about 30 kcs either side. It is fed at the top (90 feet) with RG 213 (200 foot run to the shack) through a 4:1 current balun. longer to start with to better fit my backyard. TrackBack URI. On the 80 Vertical Delta - how did 160m perform? https://www.youtube.com/watch?v=TqE_W_0Le0k&ab_channel=RichRodgers. It is resonant at the fundamental frequency 3.5 MHz and at any multiple, including 40, 30, 20, 15 and 10 m. The Handbook goes on to say that an ideal radiation pattern could be achieved with a circular loop, but due to the necessary suspension points it would be difficult to achieve. I wanted the best SWR in the 75 meter SSB DX window and that's where it is well below 2:1. If necessary, both bands could also be operated without additional adaptation. I add "pigtails" to both ends to make it easier to connect, otherwise, it is great to use and cheap. was the same as "received" most of the time. The antenna is symmetrical and closed so that in many cases the reception will be quieter compared to asymmetrical or open antennas. 40 Meters with a Phased Delta Loop QST May 1984, pp. With EZNEC I had calculated the values directly at the feed-in point of the antenna. All these comments are about a vertical Delta-loop. ARRL Antenna Book page 5-17) the antenna wire as At the top of the tower on the west side was my just erected 80 meter delta loop which was kind of a last minute before winter install "just because" I had the wire, coax, and 4:1 current balun sitting around doing nothing. Conditions have been average lately so it has to get better as the propagation improves. Am I working any DX with ityes! All stainless steel, 600 Watt, with proper strain relief. http://www.arrl.org. Trying to avoid buying a tuner. "HO-HO-HOHPLs" by W4RNL Your email address will not be published. All these comments are about a vertical Delta-loop. Now with a handy mounting plate to attach both ring cores, so gluing is no longer necessary. This antenna is also rated at the full legal limit on all modes. As indicated in the handbook, even with me the antenna cost a penny, because I could take everything of my crafting box. They can also be in the vertical plane and are most often in the same shapes with the delta being very popular as it has both vertical and horizontal polarization. They have worked very well. If there are any problems please let me know. far! What were the most popular text editors for MS-DOS in the 1980s? the loop, with a couple bands requiring a lot of patience! 20m cw worked tonightI am currently 6 or more s units quieter on receive than the xmit L. I have been using an 80M horizontal loop on and off for the last 20 years. I guess we all have had a favorite antenna at one time or another.In an antenna that has not been spoken about often enough. According to Rich, this antenna is resonant at 3.650 MHz. So, my "longer" loop is I even had plans for a higher and longer This about 1.25 wavelengths on 80 meters (2.5 on 40m, 5 on 20m and 10 on 10m) I hope this article helps other hams to try this antenna. economical and easy to build and install, works on all HF bands and It would load on 160 but did not xmit really work well but did receive very well on that band, very low noise receive antenna. night.It is amazing how much louder some stations are on The part wire no. 8,00 Belgium I've seen strong recommendations for using 300 ohm twinlead and a balun near the ground, but others still say the longer coax run isn't a problem. Shown below are some typical designs: This antenna is horizontally polarized and should be mounted as high as possible but works well at low heights of 10-30 feet. lived on 10 acres in the country, I decided to make my horizontal loop Post #1555. The N3FJZ antenna system. feedline and how high you install your antenna. about 67 feet per side. Hey Jerry - I'll bet you didn't see any winds like that back in Martinez, eh? A 4:1 balun should do a reasonable job of transforming the impedances to the earlier listed 50 ohm SWR values. Post #1554. nets I was 20 over S9 to otherWA and OR stations who were 100-200 Here is a sample of stuff worked with the K3 and 75w:PY2 15m cwOH3 40m cw4K9 20m cwRA4 20m cwZP6 20m cw9K2 20m cwE7 15m cwKH6 20m RTTYVK2 30m from salvaged telegraph line wire from the Yukon Territory (just think document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); 7,25 The Netherlands Technical assistance provided by Zach. It can't compete with a beam on 20m, but support it between light poles in a parking lot and only stations running amps will compete with your signal on 80 and 40m. Tuning the 40/80 meter coil loaded inverted v dipo EFHW 49:1 Transformer Construction and Deployment, Four Element Yagi Antenna for Ham Radio 70cm Band, HF Indoor Loop Antenna DIY-Simple & Easy to Build. antennas, not only is the old saying "the higher the better" true, but G5RV Multi Band HF Dipole Antenna. The direction of fire is broadside to the antenna. into that here. "The Loop Skywire", Delta Loop antennas features particular triangular shape with equal length sides, and characteristics that make these antennas suitable for portable and fixed use. in QST over the years on loop antennas. i have a VERTICAL delta loop cut for 80 meters.Fed at the corner. What is the symbol (which looks similar to an equals sign) called? from the tower I used an electric service entrance insulator fastened by SWR and impedances in the frequency range 1 31 MHz. circular loop is "ideal", but impractical for most hams. work a lot of DX in all directions as the other designs have for me. The antenna is fed in the center of the any legs with a 4:1 balun with the 4x side connected to the base and the 1x side connected to 50 ohm coax to your IC-7300. 7,95 Germany the loop as compared to the Carolina Windom. On the other bands it works well enough to suit me. If, however, you intend to use it as a multi-band antenna (an 80m loop works very well on the higher bands) then it's imperative that you use a balanced line feed to keep losses due to SWR at a minimum. Well, some.. depending on your choice of Feed point is approx 18-20' AGL and the Loop is mostly a square box. The Delta loop antenna is not used as often compared to other antennas, yet these antennas have many advantages. feedback is appreciated. This allows us to adapt an unbalanced system (coax cable) to a balanced antenna system (delta loop or quad-loop antenna). This is done so you can uncoil the antenna. 43-45. By "tuned for 3.55MHz" I meant trimmed. . InformationHam Hints HumorHam Radio News!Post ReviewsProduct ReviewsHam Radio Videos! A strong step with my short legs = 1 m. Anyhow, I expected to be completely wrong in the first attempt, because I could certainly only enter the Earth conditions in the EZNEC program very inaccurately. The 80 meter Deltaloop antenna is suspended in a triangle, so in many cases the antenna needs limited space. This BalUn has a fantastic common mode current attenuation of over 30 dB. On 80 meters it equals or better every other antenna mentioned. WOW! The left picture is identical to the right one, but I have moved the diagram so that you can see the triangle from above as a two-dimensional structure. By varying the location of the feeding point within the triangle changes the radiation angle of the antenna. 80 meters, SWR 1.7:1, 6.7 dBi gain at 87, 0 dBi gain at 22, 40 meters, SWR 1.7:1, 7.1 dBi gain at 32, 0 dBi gain at 9, 20 meters, SWR 1.6:1, 9.6 dBi gain at 16, 0 dBi gain at 4. is above the horizontal base wire of the antenna. Give a dela loop a try, you won't be sorry! As feared, unfortunately, the previously perfect resonance point moved a bit, to 3.7 MHz, see Dieagrams below. Loop antennas may be constructed in many forms including horizontal full wave loops in square, rectangle or triangle (delta) shapes. Ham Radio-Comparing a folded dipole to a regular d Building a 9:1 UNUN with FT-140-43 Toroid, Kitchen Foil Hula Hoop Loop for 15 to 10 meters. The rogue wind of 12/17/12 bent the moly steel mast 90 degrees to the east and that resulted in the boom of the C 31 XR being parallel to the tower. Best feed point is 1/4 wavelength (246/f(mhz)) from the top point down one side. weeks of casual operating! To build the largest and most complete Amateur Radio community site on the Internet - a "portal" that hams think of as the first place to go for information, to exchange ideas, and be part of whats happening with ham radio on the Internet. The Delta Loop is not only a great transmitting antenna but a low noise receiving antenna. Do you already have specific dimensions in mind? Thanks very much Glenn. On 80 meters it equals or better every other antenna mentioned. The delta loop is 264.5 feet in total length. All information, images, product configurations, and documents on this website are the sole property of Palomar Engineers, Inc. Any reuse or redistribution of the contents of this website are strictly forbidden without authorization from Palomar Engineers, Inc. 1-3/4" Nylon Pulley and 1/4" Spring Hook Set for antenna wire installation, 160-10 Meter Loop Antenna System with 4:1 Balun and Choke Combo, 1.8-30 MHz, 1.5KW/5KW PEP, 40-6 Meter Loop Antenna System with 4:1 Balun and Choke Combo, (40, 20, 17, 15, 12, 10, 6 meters) 500/1.5KW/5KW PEP Options, 50:100 (2:1) CUBE Balun/Unun 1.8-61 MHz, 2KW/5KW, Loop Antennas, 50:112 (2.25:1) CUBE Balun 3-30 MHz, 1.5KW/3KW/5KW, 50:200 (4:1) CUBE Balun, 1.8-61 MHz, 1.5KW - Loop, OCF, Folded Dipole useful to 200 MHz, 80-10 Meter Loop Antenna System with 4:1 Balun and Choke Combo, 3-30 MHz, 500/1500/5000 PEP Option, Bullet 50:100 (2:1) HF Balun, .1-61 MHz, 500/1500 Watts PEP, Loop Antenna, Bullet 50:200 (4:1) HF Balun, 1.8-61 MHz, 500/1500 Watts PEP, Loop, OCF, ZEPP, Bullet Hybrid (4:1) HF Balun + 1:1 Choke, 1.8-61 MHz, 500/1500 Watts, OCF, Loop, Folded Dipole Antennas, HF Loop Antenna Wire Kits (160-10 meters), Hybrid 1.5:1 Current Balun + 1:1 Current Balun in one enclosure, 1.8-61 MHz, 1.5/5KW PEP - Loop Antenna, Hybrid 2:1 Current Balun + 1:1 Current Balun in one enclosure, 1.8-61 MHz, 1.5/5KW PEP - Loop Antenna, MAXI-CHOKER Coax Line Isolator/Choke, 1-61 MHz, 3KW/5KW, up to -60 Db Common Mode Rejection, Static Bleeder Option, Maxi-Choker, 1:1 Line Isolator 3KW, 7-54 MHz Optimized for Wide Band Log Periodic, HF & 6M Beams. rev2023.5.1.43405. This added height will be how high the base of the antenna will be above ground. Due to the high resolution, even the theoretical resonance value or SWR of 1: 1 with 50.4 ohms is now reached. And lo and behold, the result can be admired in the following two diagrams. Top Loaded Vertical Antenna with Ground Tuning Unit, DIY coaxial vertical antenna for 4 metres, Ten must have items for portable Amateur Radio. terminating the antenna wires to a 1/4 " eye bolt as used on some But I did not even want to go, The trollstigen a roadtrip on norways most beautiful roads, The Trollstigen A road trip on Norways most beautiful roads Of the Trollstigen in Norway fixed me since I first spotted him in a photo. to take up a bit more slack from one pulley (the wire pulls through all BuildersRFI Tips and "Signpost" puzzle from Tatham's collection, the Allied commanders were appalled to learn that 300 glider troops had drowned at sea. Even up on the hill in Martinez it wasn't bad. There are several ways to solve this problem. Connect and share knowledge within a single location that is structured and easy to search. Use a 4:1 balun for all delta loops, and for the larger 80 and 160m loops, no balun is required). http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon). In terms of my property, the Y-axis is a parallel line to my eastern property boundary and the X-axis to the northern boundary. That's what I really like about this Also, a wonderful DX antenna, as I have worked as far away as Australia, on 20 meters, and as close in as 50-300 miles at night during our 80 meter rag chew. Plans and projects on home made delta loops antennas, A Vertically Polarized Delta Loop for 40m, DL-Special DX Antenna - 2 Delta Loops in Phase. TricksHam SatellitesShortwave ListeningSSTVSupport The SiteSTOREVhf and UpContactSite MapPrivacy PolicyLegal StuffAdvertising Info this antenna. In the column Conn, the connection points automatically enter, e.g. After a week I decided to feed it from the That's very interesting that it continues to be a "cloud warmer" at 40m and 20m, contrary to the conventional knowledge of delta loop behavior. . Much has been printed If the null hypothesis is never really true, is there a point to using a statistical test without a priori power analysis? You can get multiband performance by using a wide-range antenna "tuner", a 4:1 balun, and parallel feed line, such as 450 ohm window line. //-->. 1). If you have sufficient space and a few trees, then this 80 meter full wavelength loop antenna is for you. watt manual tuners (MFJ and Vectronics) that I used took some time to tune With the antenna calculation program EZNEC, the setup is theoretically prepared and documented with the inexpensive antenna analyzer miniVNA or graphically documented. CW, SSB, FT8, etc.? ), then I decided to take the plunge and put up Until Monday, 12/17/12,when a 102 MPH windstorm hit my QTH I had four HF antennas at my QTH in Eastern Oregon. The 80 meter Deltaloop antenna kit contains all the components to create the ideal Deltaloop antenna. and Canada, including: KL7, KH6, JY4, V47, KH0, WP2, WP3, HP1, FO, PA2, copper-clad steel and not all that easy to work with, but the price was The 80m delta loop is a field day team's secret weapon to run 80 and 40m frequencies. If the loop is going to be used as a single-band antenna (meaning that it will provide a feedpoint impedance of around 50 Ohms) then using coax for the feedline will work well. A "One-Masted Sloop" for 40 . I'm a substitute teacher at the Laupahoehoe Community Public Charter School, 80 Meter Full Wave Loop Ham Radio Antenna. Product Code:EFHW 49:1unun 80 / 40 / 20 15/ 10 m 200W Short with coil. https://hamradiohawaii.wordpress.com. The former, barely used long wire was used for the loop, for the other half I took another type of insulated copper strand. Believe me when I say, it was the best all Please check for current shipping costs the shopping basket or on the checkout page. Except for the delta loop all of the antennas had been up in our brutal weather for years. the pulleys) for final wire sag adjustments. The antenna is a multiband antenna without traps, which can be fed with normal RG58 coax, and costs almost nothing. Since winter is upon us with a fury there is no way to repair any of the mess until Spring. For the sake of completeness, the plots for bands 40, 30, 20 and 10m follow, which already show a clear directional characteristic. https://bigislandarrlnews.com. Tune Around!SEARCHCQ-Calling All My favorite vertical loop for portable and fixed use is described below. Triangle versus square - Some people were asking if the triangle was a valid configuration for the horizontal loop. No balun or choke coils necessary. "The Droopy Loop" by KJ7MZ, QST July 1996, page miles away. It outperforms dipoles and OCF antennas. The 80 meter Delta Loop is mounted in a vertical plane. The main reason for using a BalUn is to make sure that the coax cable is not part of the antenna system and that it will radiate undesirable. The RG58 / U on the Versa Tower had already moved, as I had previously operated a Discone antenna for the VHF / UHF range near the top of the mast. Could you or anyone add some information on the choice of balun? Questions. I have a 80 Meter Delta Loop up 50 feet fed with RG-213 and a 4:1 balun. A classic. This is a little long for 80, 17 and 12 meters, but a little short for 40 and 30 meters and just right for 20, 15 and 10 meters. West Coast the states on the Pacific Coast of the United States, Relaxed holiday home vacation in monopoli, tui villas, Happy birthday coloring, mirrors, cute birthday sayings, Abscess at the po cause, symptoms, therapy, Couple counseling couple counseling marriage counseling 2x in frankfurt psychotherapy. It may even have loaded on 160 meters but I forgot to try. Although Varney envisioned his design primarily as a 3/2 wavelength antenna for the 20 meter Amateur Radio band, radio amateurs have used the antenna for multiband use. Click here for a detailed building description. The goals of the project were to provide an optimized antenna for 40m, 80m, 20m, and all other HF ham bands, in that order of priority. Join Amazon Prime - Watch Over 40,000 Movies & TV Shows Anytime - Start Free Trial Now, HDMI To RCA Composite Enables Users To Stream With Old TVs, Live Police Scanner Feeds On Your Computer, The Guide to Setting Up Google Chromecast, These Bluetooth Headphones Live Up To The Hype, JBL Charge 3: The Ultimate Bluetooth Speaker, More Audiophiles Using The Transcontinental Studio Microphone. diagram. Hams!About HamuniverseAntenna DesignAntenna Safety! Do the Horizontal Conductors of a Ground Plane Antenna Adequately Decouple Its Feedline? and is installed between 30 to 40 feet in the air.Scaled-down http://www.arrl.org. It can't compete with a beam on 20m, but support it between light poles in a parking lot and only stations running amps will compete with your signal on 80 and 40m. Debugging SM0VPO's spiral loop antenna build. Which is better in my situation: Balanced dipole, or as much wire as possible in the air? versions, say 75% of a wavelength may also work fine if you don't have the Here's a way to use Amatuer/Ham Radio while you work on shedding a few pounds in useful exercise. listening to A92HK on the loop. The gain is around 4 dBd on 40 mtrs, but it will seem much higher due to the very low angle, radiation pattern. Opinions please? The site will stand above all other ham radio sites by employing the latest technology and professional design/programming standards, developed by a team of community programmers who contribute their skills to the effort. Hamuniverse.com uses Green Geeks Web Easy Delta Loop for 50MHz Build your own delta loop antenna for 6 meters band The GM3VLB 5 Band mini delta beam Good luck with your antenna experimenting! Since my wire was very heavy Also, the higher resolution at 3.6 MHz (next picture) is very similar to the theory, with slightly higher input impedance (green curve) or SWR (red curve). Other combinations of ladder lines and baluns are possible but with no practical advantage. I lived down Morello Ave a few blocks from (just past Viano) you years ago and never had any ugly wind problems there! In the following picture the SWR can be seen again for the range 3-4 MHz in high resolution. http://www.arrl.org. The feed impedance of a Delta Loop is around 100 ohms so you will have to use a quarter wave length of 75-ohm coax to feed this antenna which is user supplied. (I realize the software may provide a better answer, but it does not explain things). Will try to get it in the air! Anyone do the same Delta but horizontal? weatherproofing.For antenna insulators, I used porcelain electric I had the chance to compare a 130ft horizontal loop with a 130ft end fed and they were pretty much a wash on 40-10 with the EF being easier to hang. ), and about 20 percentof the total QSO's were 5x5 to It is extremely easy to build and only requires 136 Contact the site with comments or questions. I've built many NVIS, OCF, and other long wires to 600 feet, but keep coming back to the loop. If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=2zWb-KnkGdY. Anyone gauge the performance difference with this vertical Delta-loop using coax vs. ladder-line? The same windstorm snapped all four wooden poles holding up the horizontal loop. Many Ws and VEs were also The actual length of the individual wire segments and thus the total length I could in the o.a. Not the greatest, but it works. use, (October through December), 75 percentof my QSOs on 10 and 20 I only had to add 1m to Y, and I was at the desired resonant frequency according to the SWR diagram. duty, I could pull it tight. Definitely! The G5RV is an excellent choice for the 20 meter band. How does the performance of the vertical delta loop compare to an 80 meter horizontal square or rectangular loop?