80 meter delta loop antenna

Antenna covers all bands 80-10 meters + 30, 17, 12 meter WARC Bands This antenna works as a Full Wave Loop on 80 Meters and also works as a 2 wavelength open loop or Bi-Square on the 40 Meter band 80m 2 element Yagi antenna 2 elements short boom yagi for 80 meters Receiving antenna for low bands K9AY loop antenna installed at PA6Z Contest group. It will be about equilateral. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); 7,25 The Netherlands stuff to build it was on hand-no cost! How high off the ground? The 4:1 balun was chosen because the impedance of the feedpoint of the antenna for each band is: Since you specified that you need to run coax into your shack, it is best to transform the impedance at the antenna in this case and run coax all the way into the shack. and Canada, including: KL7, KH6, JY4, V47, KH0, WP2, WP3, HP1, FO, PA2, This means that if the base wire of the antenna goes from north to south, the direction of gain will be east and west. As a comparison, I have shown the results of the Deltaloop with chicken ladder below, with very interesting results and conclusions. this antenna. http://www.arrl.org. 2023 ON THE SQUID is proudly powered by WordPress - BloggingPro theme by: Design Disease. Moving to any angle is easy with EZNEC. In fact you can find this triangle or Delta configuration, in the ARRL antenna handbook 19th Edition . economical and easy to build and install, works on all HF bands and Check This is probably the best 80 - 10 meter antenna I have ever used. I have a 80 Meter Delta Loop up 50 feet fed with RG-213 and a 4:1 balun. google_ad_width = 160; Spot on frequency cut for 80 meters with about 30 kcs either side. critical according to my results.In my opinion, when constructing I wasn't using an ampeither. It outperforms dipoles and OCF antennas. The diagram indicates a high narrow band of the two wish bands. And all since July 12th, 2014Thanks for the idea - my first loop since I got my license in I found a square thank you for bringing this to our attention. That was then 86 m. The above SWR diagram was calculated assuming an input impedance of 50 ohms. Here I have divided the two long wires again into 2 parts, because I wanted to simulate the intentional sagging of the long wires here. Once I re-build the horizontal loop I do intend to do some comparisons. 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. The loop is clearly the option for quiet antenna and a good option for multiband use but otherwise non spectacilar. This is where the standard is set. The top section of tower above the top guy point is bent slightly. I value your comments and suggestions. or even a rectangular loop is easier on the pocketbook and muscles to put terminating the antenna wires to a 1/4 " eye bolt as used on some A "One-Masted Sloop" for 40 . Feed point is approx 18-20' AGL and the Loop is mostly a square box. After getting fit in theory, I started building the antenna. I use "about" because exact numbers are not that download from ARRL website, do "search" for "constructing loop The 80 meter Deltaloop antenna is suspended in a triangle, so in many cases the antenna needs limited space. Due to the possible suspension points, a triangle of about 20x30x30m would be suitable, fed by a coaxial cable in one corner of the triangle, i. at the suspension point Versa Tower. confident this antenna will produce good results on 40 and 80 meters as This antenna normally has about a 3 DB gain over a 1/2 wave center fed dipole. http://www.arrl.org. Except for the delta loop all of the antennas had been up in our brutal weather for years. I'd like to put up an 80m delta loop. Repeater How to force Unity Editor/TestRunner to run at full speed when in background? /* Ad banner 160 x 600 */ I will redo the analysis and update the answer this weekend. 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. They have worked very well. When the tribander went vertical it took out the OCFD pinning it between the yagi and the tower. If you have sufficient space and a few trees, then this 80 meter full wavelength loop antenna is for you. I wish I had tried this antenna sooner in my ham hobby years. Conditions have been average lately so it has to get better as the propagation improves. InformationHam Hints HumorHam Radio News!Post ReviewsProduct ReviewsHam Radio Videos! Due to the high resolution, even the theoretical resonance value or SWR of 1: 1 with 50.4 ohms is now reached. 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. Am I working any DX with ityes! So, my "longer" loop is Once the wire was in the The Delta Loop is not only a great transmitting antenna but a low noise receiving antenna. All these comments are about a vertical Delta-loop. Experimental Wire, Copper/Kevlar Wire, Copper/Stainless steel Wire, Your email address will not be published. Works great 80 - 10. Opinions please? ), then coax all the way? and 17 meters.DX worked on 15 meters: KL7, HL5, JR1, KH0, RV9 and The decreasing SWR values with increasing frequency measured with the miniVNA, which could not be seen in the EZNEC diagram, are certainly due to the cable losses of the 30m long RG58 / U. 40 Meters with a Phased Delta Loop QST May 1984, pp. on signals mentioned above over the two-day period of tests.I am Try it some time! Post #1554. Since winter is upon us with a fury there is no way to repair any of the mess until Spring. Directivity? 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. 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. 7 Delta Loops for 7 MHz. I quickly found a suitable BNC adapter on PL, and off we went. With the antenna calculation program EZNEC, the setup is theoretically prepared and documented with the inexpensive antenna analyzer miniVNA or graphically documented. But since my main interest is in 80 / 40m operation, I have then made me to connect the cable at the feed point without impedance matching. - all I had in the garage at the time of the build!All TrackBack URI. In the column Conn, the connection points automatically enter, e.g. As a compromise would then be a square arrangement in question, which was also described here. 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. 4,95 The Netherlands (letterbox) The feed point insulator has a SO-239 connector. I have built both square and delta loops and have always fed them directly with 50 ohm coax through a 4:1 CURRENT balun. circular loop is "ideal", but impractical for most hams. For the latest Amateur/Ham Radio news and information, please visit these websites: http://www.HawaiiARRL.info. I then repeated the same measurement assuming an input impedance of 200 ohms, hoping that the upper band SWR values would improve, i.a. Since the property boundaries are covered by tall trees, a square loop, as described in the handbook, was out of the question for me, but only a triangular arrangement. I regret only http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon). room for a full-wave or longer antenna.According to antenna experts, a 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. The antenna is tied at three locations and insulators are supplied and factory set at the proper location so all you have to do is tie some rope to them and hoist the antenna into place. Comment document.getElementById("comment").setAttribute( "id", "a83b46cfc120fc48eba63655d8cdb058" );document.getElementById("bf02c2270e").setAttribute( "id", "comment" ); Save my name, email, and website in this browser for the next time I comment. To build this antenna you need a lot that is at least 100 feet across. long bottom extension of the PVC T to remove strain on the hanging ),I used my 50-foot tall all" (you can't work them all! Any antenna tuned for 80 Meters should also work on 20 and 10 meters as well. Which was the first Sci-Fi story to predict obnoxious "robo calls"? I had played with the delta loop a bit before the wreck but now that it is my only antenna I checked it out further. During the first 3 months of A little wood, some wire and a handful of components can make a directional antenna for indoor use where outdoor antennas are not permitted. EZNEC also takes different soil conditions, construction height and wire gauge into account, so that I trust the program more than the usual simple calculation formulas c, f and k. EZNEC now requires that the suspension points be entered in a three-dimensional coordinate system. This 1:2 BalUn scores very well both in terms of common mode current attenuation and impedance matching. Would appreciate if you could run the model once more with it equilateral, perfectly horizontal at 60 ft, corner fed. I am new to HF. https://amateurradionewsinformation.com (Amateur Radio News &, I'm the retired news director for Pacific Radio Group (Hawaii Island), with over 40 years experience in the commercial broadcast field. 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. 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. The best answers are voted up and rise to the top, Not the answer you're looking for? HF & ShortwaveLicense StudyLinksMidi MusicReading RoomRepeater Basics This configuration is best suited for working long haul DX. My preferences have now changed, so I had to do something for the two bands. Dimension "B" is the length of antenna wire called the base (width) of the antenna. For the sake of completeness, the plots for bands 40, 30, 20 and 10m follow, which already show a clear directional characteristic. 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. easy it is to build and how well it performs. the auto-tuner on my TS-570D since my Tucker 1.5 kW tuner easily handled @enzo I see now that I misinterpreted your layout for the antenna. Well, the Height above ground range. Until Monday, 12/17/12,when a 102 MPH windstorm hit my QTH I had four HF antennas at my QTH in Eastern Oregon. I can use it on 160 with a tuner though I run low power when doing so. AND IT IS WORKING DX JUST FINE. I use window line from the feed point into my shack and then to a 4:1 Balun in my shack. About 75 using the antenna 4 years. Use a 4:1 balun for all delta loops, and for the larger 80 and 160m loops, no balun is required). If tuned for 3.55MHz, I anticipate having a good SWR on 80m, 40m, and 20m. At the end of the quarter wave matching section of 75-ohm coax, you can attach a random length of 50-ohm coax, again user supplied, which will be run to your rig. Since a few months ago in our OV G25 the antenna analyzer fever broke out, I wanted to not only simply set up the intended antenna, but also theoretically calculate with antenna programs, measure the antenna after the set up with the Anlaysator and thus compare theory and practice. i have a horiz loop 280ft of wire fed with ladder line and up 70ft.does not tune up great on 160m but works great on 80m to 10m.signals equally as good on 17m as a 12element log at 90ft.great antenna and simple, i have a horiz loop 280ft of wire fed with ladder line and up 70ft.does not tune up great on 160m but works great on 80m to 10m.signals equally as good on 17m as a 12element log at 90ft.great antenna and sim ple. It was perched on a 2.5 inch OD, 1/4 inch thick wall, moly steel mast and turned by a Tailtwister. 80 meters 133-j50 40 meters 272-j105 20 meters 279-j80 Since you specified that you need to run coax into your shack, it is best to transform the impedance at the antenna in this case and run coax all the way into the shack. it has out-performed my OCF dipole, dipole and inverted L, when ALL bands from 10-160 are taken into account. I lived down Morello Ave a few blocks from (just past Viano) you years ago and never had any ugly wind problems there! Here, the red curve is the SWR, the green curve is the impedance. If the null hypothesis is never really true, is there a point to using a statistical test without a priori power analysis? Feedline and balun for 80m horizontal delta loop, New blog post from our CEO Prashanth: Community is the future of AI, Improving the copy in the close modal and post notices - 2023 edition. and adding my own twist, the antenna would either work or be a Note the low angle of radiation. Give a dela loop a try, you won't be sorry! "HO-HO-HOHPLs" by W4RNL Air conditioner in the car: an important companion through the summer! The Delta loop antenna is not used as often compared to other antennas, yet these antennas have many advantages. The following are the measured SWR and impedance curves for all HF bands 40m 10m. a lot of detail on gain (see ref #4 below) in his article so I won't get 20m.I am primarily a cw op but I do get on phone as WOW! versions, say 75% of a wavelength may also work fine if you don't have the cw4X4 20m cwTF3 20m cwKH2 20m up each mast one-by-one with the rope and pulley. Now with a handy mounting plate to attach both ring cores, so gluing is no longer necessary. The performance by CW/digital band segment of this antenna is: These results were obtained over real, average ground. Ubuntu won't accept my choice of password. long spans - just ask me!My loop is fed about mid-span and the coax Debugging SM0VPO's spiral loop antenna build. Cebik W4RNL goes into Canadian of Polish descent travel to Poland with Canadian passport. 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. Hey Jerry - I'll bet you didn't see any winds like that back in Martinez, eh? google_ad_client = "ca-pub-9377297764300878"; Remember, this loop is above a Just to add my two cents worth, I have seen very good matching and good performance with the loop antenna, when I used link couple type tuner, instead of regular "T" match type. found to be so appealing about this antenna was that it was fairly TricksHam SatellitesShortwave ListeningSSTVSupport The SiteSTOREVhf and UpContactSite MapPrivacy PolicyLegal StuffAdvertising Info ARRL Antenna Book page 5-17) the antenna wire as (This includes any inappropriate posts on a topic, as I cannot monitor every topic.) google_ad_height = 600; That has left me with the last minute idea 80 meter delta loop as my only antenna. However, if that's not practical then run balanced line as far as you can and terminate it into a balun followed by the shortest possible run of coax to your rig or tuner. Remember to add at least 8 feet to dimension "A". I have read much about impedance, SWR, quarter wavelengths, and I simply do not have the background to make sense of it. 40 Meters with a Phased Delta Loop QST May 1984, pp. Build a space efficient trapped dipole antenna for 40-80-160 meter bands using RG-58 and PVC pipe by W8NX. 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. It only takes a minute to sign up. Length of a full-wave drops 30 feet straight down into my shack. Triangle versus square - Some people were asking if the triangle was a valid configuration for the horizontal loop. The result is to be admired in picture below. feedback is appreciated. Contact the site with comments or questions. to take up a bit more slack from one pulley (the wire pulls through all 1: 1 balun, wire strand, insulators for the bracing and rope clamps I had too. It loads on 80-10 meters, but I haven't tried making any QSOs on 80 with it. also "the longer the wire the better" may also fit some loops.Since I Hamuniverse.com uses Green Geeks Web If necessary, both bands could also be operated without additional adaptation. On time Heinz, DL9NDG, appeared to me with the antenna analyzer minVNA, which he had borrowed shortly before from the other Heinz, DD9KA. Hams!About HamuniverseAntenna DesignAntenna Safety! Antenna covers all bands 80-10 meters + 30, 17, 12 meter WARC Bands This antenna works as a Full Wave Loop on 80 Meters and also works as a 2 wavelength open loop or Bi-Square on the 40 Meter band. The G5RV is an excellent choice for the 20 meter band. 80 Meter Full Wave Loop Ham Radio Antenna or Amateur Radio Antenna. Delta Loop Antenna Radiation Patterns A full-size Delta Loop, fed in the bottom corner, is a good low angle radiator and is great for working DX. 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. Thanks for your support! Likewise, the advantages of a coaxial cable compared to a chicken ladder with Matchbox for this type of antenna are practically and metrologically documented. watt manual tuners (MFJ and Vectronics) that I used took some time to tune Noise Suppression up to 38 dB, Receiver Impedance/Isolation Transformers, Broad Band Terminated Dipoles (BBTD, T2FD). Rich Rodgers (WB5YBZ) does a wonderful job of describing this antenna he built for his home station. I've worked Europe and Australia on 30 with it, South America and the Canary Islands on 40, and I've worked a lot of DX on 17-10 with it too. Around the first toroidal core a 1:1 current BalUn is built up, creating the transition from unbalanced (coax) to balanced (the antenna). This length I had in wise foresight already off, i. I had a bit diverted as a possible reserve. Joseph. By "tuned for 3.55MHz" I meant trimmed. Feedback QST May 1996, p. 48. He is peaking S8 and was louder the other pileups on the first or second call. well. I've been running an open loop for the last couple of years and having good results. . 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. So much so, Experience report of a hearing aid beginner Motivation for this review Based on my own experience as a fresh or inexperienced hearing aid wearer, I would. Best antenna I have used in 50 years of hamming. As expected, the antenna radiates flatter with increasing frequency. **I worked all over the USA 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. I even broke several big So, if we want to determine the length of a full wave loop on say 40 meter phone, we'd use 1005 divided by 7.180=140 feet (see chart below). u-bolt to "float" (ref. "The Loop Skywire", Recommended height is 40 feet or more at highest point, but higher is better.

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