80 meter delta loop antennaclarksville basketball

I regret only Then the spruce side was raised again and a new measurement was made. 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 ]. duty, I could pull it tight. While I could get it to load it naturally was only a half wave long on 160 and radiated as such. miles away. At the spruce, I pulled the wire to target height. from the tower I used an electric service entrance insulator fastened by galvanized water pipe. All these comments are about a vertical Delta-loop. End2 of sub-wire 1 is identical to End1 of sub-wire 2, etc. I did not try Once you try a loop antenna you will know why they are so popular with old timers but still a secret to newcomers. As feared, unfortunately, the previously perfect resonance point moved a bit, to 3.7 MHz, see Dieagrams below. From my Balun to my tuner with a short piece of low loss 50 ohm coax. The feed line is about 30' of 8U to a 4/1 current Balun. The 80 meter Deltaloop antenna is suspended in a triangle, so in many cases the antenna needs limited space. The opposite end of the feed point is approximately 35' AGL. This project involves a management team of volunteers who each take a topic of interest and manage it with passion. Once the wire was in the Hamuniverse.com uses Green Geeks Web The gain is around 4 dBd on 40 mtrs, but it will seem much higher due to the very low angle, radiation pattern. Now we're in Folsom and get all kinds of strange weather! 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. I use a 1:1 balun. 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. http://www.arrl.org/arrl-audio-news (a weekly podcast which is updated each Friday afternoon). was the same as "received" most of the time. There are several ways to solve this problem. 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. Even the resonance point was exactly at 3.6 MHz, so I randomly sized the antenna wire randomly from the start. up and would provide about the same results.To support my loop made By "tuned for 3.55MHz" I meant trimmed. 8R1, DS3, G3, LU1, ON7, JA (all), DU1, I2, ES1, UA9 and UA6 to name a Post #1555. RG 213 coax (chosen for Well, the Maybe it has to do with the unequal sides and tilt? 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. Am I working any DX with ityes! the job quite fast on all bands 80-10 meters.My tribander will I use "about" because exact numbers are not that critical according to my results. 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. Much has been printed 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. Remember to add at least 8 feet to dimension "A". On 80 meters it equals or better every other antenna mentioned. Works great 80 - 10. Short Description:A short HWEF with a 49:1 unun and a loading coil situated towards the end of the wire making this antenna 66 feet / 20 meters long + 6 foot of end tuning wire for the 80 meter band makes this antenna a superb choice for 80 / 40 / 20 /15 and 10 meter bands. 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. Here are the results, 160 meters It will load using my manual tuner80 Meters 2:1 3681-3933 Khz40 Meters 2:1 7127-730020 Meters Requires tuner17 Meters 2:1 entire band15 Meters 2:1 21000-21.24512 Meters 2:1 entire band10 Meters 2:1 28.000-28.430, I can achieve an SWR below 2:1 anywhere on any of the above bands using my manual tuner. Length of an impedance matching section made with 75-ohm cable with a cable velocity factor of 0.80 (foam dielectric): Formulas The formulas for calculating the approximate length of a full-wave loop antenna are: Full-wave loop in feet = 1005 / frequency in MHz Full-wave in meters = 306 / frequency in MHz BuildersRFI Tips and The Delta Loop is not only a great transmitting antenna but a low noise receiving antenna. On the other hand, the SWR, to my delight at 40m, improved to an acceptable 1: 1.7. Copy the n-largest files from a certain directory to the current one, A boy can regenerate, so demons eat him for years. Thanks again Glenn, that all makes sense. Conditions have been average lately so it has to get better as the propagation improves. **I worked all over the USA A "One-Masted Sloop" for 40 . 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. The direction of fire is broadside to the antenna. Hams!About HamuniverseAntenna DesignAntenna Safety! At 7 MHz I have theoretical 128 ohms and SWR of 1: 2.8. In the higher bands, the directional characteristic and Verzifpelung correspondingly more pronounced. Spot on frequency cut for 80 meters with about 30 kcs either side. Joseph. and 17 meters.DX worked on 15 meters: KL7, HL5, JR1, KH0, RV9 and TrackBack URI. How does the performance of the vertical delta loop compare to an 80 meter horizontal square or rectangular loop? I wanted the best SWR in the 75 meter SSB DX window and that's where it is well below 2:1. It is extremely easy to build and only requires 136 Some people use open wire line and feed a 80 or 40 meter loop on multiple frequencies. "Signpost" puzzle from Tatham's collection, the Allied commanders were appalled to learn that 300 glider troops had drowned at sea. On the internet I got some tips, partly with contradictory legends, which made me curious. Cubical quads. At 40 m she was then shifted from the perfect 7.05 to 7.28. 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. https://bigislandarrlnews.com. 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. Not the greatest, but it works. and adding my own twist, the antenna would either work or be a Bring down a length of 450 ohm line, then a balun, then coax? Since winter is upon us with a fury there is no way to repair any of the mess until Spring. Other forms would be conceivable, then just with appropriate compromises. "HO-HO-HOHPLs" by W4RNL Why not equip your bicycle for 2 meter/70 cm mobile operation? I had to agree fully later. This BalUn has a fantastic common mode current attenuation of over 30 dB. The top section of tower above the top guy point is bent slightly. download from ARRL website, do "search" for "constructing loop http://www.arrl.org. Next, the total length of the wire was to be determined. He is peaking S8 and was louder the other 4,95 The Netherlands (letterbox) eHam.net provides recognition and enjoyment to the people who use, contribute, and build the site. What is the symbol (which looks similar to an equals sign) called? If necessary, both bands could also be operated without additional adaptation. Amateur Radio Bicycle Mobile Setup. 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. this antenna. https://www.youtube.com/watch?v=TqE_W_0Le0k&ab_channel=RichRodgers. cwJM7 20m cwA92 20m SSB5T0 Although I have mostly tried this antenna on My question, essentially, is whether the feedline and balun choice can be optimized for not just one, but two bands 80m and 40m. If tuned for 3.55MHz, I anticipate having a good SWR on 80m, 40m, and 20m. First of all, I made myself smart in Rothammel, ARRL Handbook and Internet. The N3FJZ antenna system. 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. 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. What are some drawbacks to delta loop antennas? The actual length of the individual wire segments and thus the total length I could in the o.a. percentsplit equally either 3x3 signals or simply "no contact at loop seemed to work just fine equally in all directions (I'm still AND IT IS WORKING DX JUST FINE. It worked just fine 80 10. also "the longer the wire the better" may also fit some loops.Since I By using a good BalUn, Common mode current are prevented, which also reduces interference from your direct environment. 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). google_ad_height = 600; Tune Around!SEARCHCQ-Calling All 20m.I am primarily a cw op but I do get on phone as and is installed between 30 to 40 feet in the air.Scaled-down http://www.arrl.org/arrl-audio-news (a wee, If you can't see the video, please insert this title URL into your browser search box: https://www.youtube.com/watch?v=MXTYTytR56A. 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. room for a full-wave or longer antenna.According to antenna experts, a Hey Jerry - I'll bet you didn't see any winds like that back in Martinez, eh? Sincerely 73 de Clinton Herbert, AB7RG. W5E2 into column 1, i. so wire1 / end1 meets wire5 / end2. google_ad_slot = "1982258389"; I wasn't sure if all "floaters" would The Delta Loop is not only a great transmitting antenna but a low noise receiving antenna. X axis) is about 3 dB. Could you or anyone add some information on the choice of balun? Not the best antenna, but it works. Post #1542. bands.After gleaning all the info in the articles referenced below, Height above ground range. The tower and tribander had been up for almost 10 years and had weathered previous high winds, ice storms, ice loading, etc. 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. HF & ShortwaveLicense StudyLinksMidi MusicReading RoomRepeater Basics https://amateurradionewsinformation.com (Amateur Radio News & Information). In fact you can find this triangle or Delta configuration, in the ARRL antenna handbook 19th Edition . I only had Use a 4:1 balun for all delta loops, and for the larger 80 and 160m loops, no balun is required). I use "about" because exact numbers are not that 40 Meters with a Phased Delta Loop QST May 1984, pp. At 3.6 MHz I actually have excellent values with 56 ohms and SWR 1: 1.5. tower and three masts, each 35 to 40 feet long, made from 2 inch 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. 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. HF Kits is geopend op maandag, dinsdag, donderdag en vrijdag. I wish I had tried this antenna sooner in my ham hobby years. Loop antennas may be constructed in many forms including horizontal full wave loops in square, rectangle or triangle (delta) shapes. If there are any problems please let me know. The best answers are voted up and rise to the top, Not the answer you're looking for? 573. The 600 Watt 1:2 BalUn is made up of two FT240-43 ferrite ring cores. This is where the standard is set. Check It outperforms dipoles and OCF antennas. 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. I know it tunes 40 and 80 meters quite fast! This allows us to adapt an unbalanced system (coax cable) to a balanced antenna system (delta loop or quad-loop antenna). Required fields are marked *. One is to use an open wire feeder, something like 450 ohm twin lead. Thanks. Best antenna I have used in 50 years of hamming. economical and easy to build and install, works on all HF bands and As a new ham (licensed in 11/13), I've been on a steep learning curve. Jim / W6JHB. listening to A92HK on the loop. The also exhibit gain on harmonic bands. 11,25 France. 80 meter full wave square horizontal loop feed by 600 ohm ladder line from link coupled balanced tuner. As a comparison, I have shown the results of the Deltaloop with chicken ladder below, with very interesting results and conclusions. the loop as compared to the Carolina Windom. I only had to add 1m to Y, and I was at the desired resonant frequency according to the SWR diagram. coax.Silicon caulk was then applied to the connections for mechanical build process for a 160m-long multiband loop antenna, including its support system, tuning, and SWR analysis. Note the low angle of radiation. 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. Due to the metal Versa-Towers house wall-carrying a chicken ladder would be difficult to realize, and a thick Matchbox I have not. i have a VERTICAL delta loop cut for 80 meters.Fed at the corner. Now with a handy mounting plate for the toroidal cores, so gluing is no longer necessary. 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. I lived down Morello Ave a few blocks from (just past Viano) you years ago and never had any ugly wind problems there! Delta Loop antennas features particular triangular shape with equal length sides, and characteristics that make these antennas suitable for portable and fixed use. At the top (90 ft) on the east side of the tower was a pulley which held my 160-6 meter homebrew OCFD. On 75 and 80 meters, you should have about a 220 kHz bandwidth. 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. 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. Loop antennas, which delta loops are a subset, are closed-circuit antennas in which a conductor is formed in a turn, so that the ends are connected. 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. Then I cranked the mast at nominal height about 16 m high, and performed a new measurement. I fed it with 300ohm TV twin lead at one of the bottom corners. 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. This added height will be how high the base of the antenna will be above ground. Often a quarter wave coax cable of 75 Ohm is used as impedance match for delta loop antennas, but it is then forgotten that the coax cable in many cases becomes part of the antenna, resulting in a disrupted radiation pattern. I don't operate 30 meters so I don't care about that. For the 10- through 40-meter bands, you will have less than a 2:1 SWR across the entire band. On 80 meters it equals or better every other antenna mentioned. 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. On the 80 Vertical Delta - how did 160m perform? /* Ad banner 160 x 600 */ Remember, this loop is above a Easy Delta Loop for 50MHz Build your own delta loop antenna for 6 meters band The GM3VLB 5 Band mini delta beam Repeater I had great results with it from Alaska and the Yukon on scratching my head!).