80 meter delta loop antenna

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. Which is better in my situation: Balanced dipole, or as much wire as possible in the air? For Amateur Radio News and Trends, please visit my news site at https://bigislandarrlnews.com.Aloha es 73 de Russ (KH6JRM). Vertical delta loops use the same 2:1 baluns as the horizontal loops or 4:1 for multi-band operation. google_ad_width = 160; According to Rich, this antenna is resonant at 3.650 MHz. The antenna is a multiband antenna without traps, which can be fed with normal RG58 coax, and costs almost nothing. It only takes a minute to sign up. After a week I decided to feed it from the eHam.net is a community web site for amateur (ham) radio operators around the world. Never will Go back to a dipole or G5RV again. Since my wire was very heavy The antenna is symmetrical and closed so that in many cases the reception will be quieter compared to asymmetrical or open antennas. For the 10- through 40-meter bands, you will have less than a 2:1 SWR across the entire band. First of all, I made myself smart in Rothammel, ARRL Handbook and Internet. Give a dela loop a try, you won't be sorry! I always use 300 ohm tv twinlead that is still being sold at most Radio Shacks in the USat least for now still being sold. Could you or anyone add some information on the choice of balun? Oh well, "Signpost" puzzle from Tatham's collection, the Allied commanders were appalled to learn that 300 glider troops had drowned at sea. This 1:2 BalUn scores very well both in terms of common mode current attenuation and impedance matching. Thanks. Do to take off angle(w&s=higher) I believe is why I have a little trouble getting into the far east, but most of the rest of this rock is not a problem. to take up a bit more slack from one pulley (the wire pulls through all 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 includes any inappropriate posts on a topic, as I cannot monitor every topic.) We ship worldwide. pileups on the first or second call. They have worked very well. The feed line is about 30' of 8U to a 4/1 current Balun. 80 meter full wave square horizontal loop feed by 600 ohm ladder line from link coupled balanced tuner. antenna and feedline connections were made up on the ground then hoisted watt manual tuners (MFJ and Vectronics) that I used took some time to tune I have read much about impedance, SWR, quarter wavelengths, and I simply do not have the background to make sense of it. Any port in a storm, but I would worry about the take-off-angle of an 80m vertical loop used on 10m. Air conditioner in the car: an important companion through the summer! about 67 feet per side. 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. https://hamradiohawaii.wordpress.com. Can you still use Commanders Strike if the only attack available to forego is an attack against an ally? "Loop Antennas", ARRL Antenna Book, 16th edition, pages You will also need a feed line choke or better yet, just get the Hybrid 4:1+1:1 in a single box. One is to use an open wire feeder, something like 450 ohm twin lead. 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. economical and easy to build and install, works on all HF bands and Now we're in Folsom and get all kinds of strange weather! 20m cw worked tonightI am currently To my delight, theory (EZNEC calculations) and practice (miniVNA measurements) were not far apart, comparing the above EZNEC diagram for 1 30 MHz with the image below. Tune Around!SEARCHCQ-Calling All Loops are quiet antennas compared to verticals and dipoles and are omni-directional. I hope this article helps other hams to try this antenna. The Z axis denotes the height of the suspension points, in my case this is both my Versa Tower as a starting point and feed. Overall, however, it acts in the horizontal almost like an omnidirectional, the maximum difference north / south (about Y-axis) to West / East Ca. on signals mentioned above over the two-day period of tests.I am Recommended height is 40 feet or more at highest point, but higher is better. All these comments are about a vertical Delta-loop. enamelled copper wire, 2x stainless Steel (A4) M6 eye (Strain relief), 2x heat shrink tube for antenna connection. Op woensdag is HF Kits gesloten. I found a 60 meter resonance for this 160 loop (third harmonic) and it did not work as well as a low dipole cut for 60 meters. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Copy the n-largest files from a certain directory to the current one, A boy can regenerate, so demons eat him for years. 73, Paul KB4GYT in South Carolina. The chart below will give you the actual dimensions per band so you can see if you can fit this type of antenna at your location. On the other hand, the SWR, to my delight at 40m, improved to an acceptable 1: 1.7. Easy Delta Loop for 50MHz Build your own delta loop antenna for 6 meters band The GM3VLB 5 Band mini delta beam Loop Antennas and Calculator. Spot on frequency cut for 80 meters with about 30 kcs either side. out the map below to see what it has done for me so This is done so you can uncoil the antenna. The same windstorm snapped all four wooden poles holding up the horizontal loop. 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. use, (October through December), 75 percentof my QSOs on 10 and 20 around antenna I ever used.I liked it so much I decided not to waste @enzo I see now that I misinterpreted your layout for the antenna. Debugging SM0VPO's spiral loop antenna build. Even up on the hill in Martinez it wasn't bad. Sincerely 73 de Clinton Herbert, AB7RG. I wish I had tried this antenna sooner in my ham hobby years. CW, SSB, FT8, etc.? I wish I had tried this antenna sooner in my ham hobby years. Trying to avoid buying a tuner. It is made from 12-gauge insulated wire. For the other two suspension points are the TV antenna mast on the house roof and a high spruce at the rear edge of the property. strength, durability and because I may use an amp) terminates on the The diagram indicates a high narrow band of the two wish bands. AND IT IS WORKING DX JUST FINE. Ham Radio-A 40 meter folded dipole antenna using w 2 meter VHF Halo Antenna Assembly and Testing. On the internet I got some tips, partly with contradictory legends, which made me curious. actually allow the wire to float, but they did quite easily.The wire The site will be something of which everyone involved can be proud to say they were a part. easy it is to build and how well it performs. In fact now that I am retired, when I build and install another flavor of the week(an addiction I think) the first test is against this loop. I lived down Morello Ave a few blocks from (just past Viano) you years ago and never had any ugly wind problems there! TricksHam SatellitesShortwave ListeningSSTVSupport The SiteSTOREVhf and UpContactSite MapPrivacy PolicyLegal StuffAdvertising Info 1: 1 balun, wire strand, insulators for the bracing and rope clamps I had too. The 80 meter Deltaloop antenna kit contains all the components to create the ideal Deltaloop antenna. That's what I really like about this Remember, this loop is above a great time with it.When I first built it, I fed it from the rev2023.5.1.43405. At 3.6 MHz I actually have excellent values with 56 ohms and SWR 1: 1.5. Although I have mostly tried this antenna on This antenna normally has about a 3 DB gain over a 1/2 wave center fed dipole. worked on 15 and 17 meters.Both bands produced about the same results The center feed optimizes the results compared to a corner feed. 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. loop!Gain, you ask? I wasn't using an ampeither. 4,95 The Netherlands (letterbox) The 600 Watt 1:2 BalUn is made up of two FT240-43 ferrite ring cores. 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. antennas, not only is the old saying "the higher the better" true, but G5RV Multi Band HF Dipole Antenna. In this video from AC2RJ, we see how some well-placed trees, a camera tripod, a telescoping fiberglass mast, and a "V" antenna can get you on the air without a lot of effort. and adding my own twist, the antenna would either work or be a Finally, I found the best description in the ARRL Handbook. Is it better to run 300 or 450 ohm line down and then place the balun near the entry (with a short run of coax) -- or is it OK in this case to mount the balun in the air with 50 - 60 ft of coax? It is extremely easy to build and only requires 136 I had to realize that after 19.00h also on 20m quite quiet prevailed. How to choose antenna "pigtail" pragmatically? (www.cebik.com) Do a Click here for the order form: Order Form, Telephone: (610) 317-9779 Address: 1843 Renwick Street Bethlehem, PA 18017. This antenna is also rated at the full legal limit on all modes. 43-45. The Delta loop antenna is not used as often compared to other antennas, yet these antennas have many advantages.