20m delta loop antenna Learn how to construct a great 20 metre delta loop for your suburban house by following this simple guide. requirements Let’s start with the requirements: I Jan 15, 2024 · This antenna should be excellent for the long haul on 28-29Mhz. Sep 26, 2023 · M0AWS 20m Band Delta Loop Antenna – 2D Far Field Plot The 2D elevation plot shows that the antenna will give a maximum gain of -0. Nevertheless I’d like to show this design here because … Aug 24, 2025 · For reference, lowering the bottom of the 20m 50 ohm delta loop from 3m to 1m above ground decreased the gain by about 1 dB, raised the feedpoint impedance at resonance to 69 ohms, and shifted the resonant frequency down about 100 kHz. The antenna delivers east For this project I started from a Nerio Neri Book "Antenne. Inspired by the mini-X-Q design, a modified 10m delta-loop was built, enhanced with a 1/4 wave shorted stub for 28 MHz using 450-ohm ladder line. The two bands that are most resonant are 17M and 20M. The Delta Loop antenna is one of the famous ”magical antennas”, but in reality, the Delta Loop antenna is not as magical as it’s reputation. If vertical, or near vertical will provide low angle radiation which is good for long range DX in the direction of the loop (looking straight on at the front) and near DX off the sides. Configured as a delta loop or equilateral triangle, if laid flat will be good for near DX. The dipole worked pretty well as most resonant antennas do; however, after considering some other alternative wire designs I decided to try a full wave Delta Loop. My Homebrew 20m Delta Loop My mainantenna for general use on 20m is my homebrew delta loop. Oct 9, 2007 · I managed to work Tom ZD7X with a 5/9 report operating my FT-767GX with my home brew 20m delta loop assisted with the MFJ-969 to tune the antenna with 50 watts on 12 meters. As I use to do, I started with a MMANA-GAL model (you can find the file below). This is incredible for POTA, SOTA and other portable/field operations. Layout of the 5-element wire delta loop beam. It is a full wave loop designed to operate on 1 day ago · Multiband delta loop by DL2HCB A 10-20 meters coverage delta loop antenna. It requires much more space than a vertical and the set-up is more complex. A rotor is not necessary. Sep 18, 2023 · There’s a portable wire antenna design I’ve been wanting to put on the air for POTA and SOTA for what seems like ages: a 20 meter vertical loop. Despite its reputation as a Multi band antenna, it is a single band antenna. And for the most part its true. I was introduced to this antenna by M0DOL who I saw using one at the KDARS site over a year ago. An example of the Corner Fed Delta Loop antenna made for 20 m. This is one example of a wire quad antenna. After relocating, DL2HCB designed a multiband loop antenna to cover 10-20m with an open-wire feed for impedance matching and compact installation. I mentioned in a Ham Radio Workbench pod… May 10, 2022 · 5 Element Delta Loop last updated 10 May 2022 This 20m wire beam antenna was designed for Field Day use, where it was strung between two trees. 2" (Antennas. The design can be scaled for other bands. Monoband delta loops are also an option. loop was my first foray into serious antenna building. 0:1 SWR across the 20m Band. Dec 29, 2023 · Tuners, either at the base of the antenna or in your ham shack, can also be used. Delta Loop Mk1 The Mk1. 12M is rarely open and I have only had a few QSOs on this band so I guess the new Cycle has begun at last! Jun 10, 2012 · A multiband delta loop is a compact and effective antenna with the characteristics of an omnidirectional antenna. Recommended setup is an equilateral triangle with one corner elevated and a flat bottom elevated several feet above the ground which will produce less than a 2. The book describes the building of a HF three bands (10-15-20) aluminium delta loop, but I limited the design to 20m band only. It is versatile. Jul 11, 2025 · Alan’s suggestions have been a tremendous help in designing this latest iteration of my rapid deployment, field expedient, portable delta loop antenna for the 20m band. Delta Loops for HF "You'll love lower noise and relative gain over a dipole's ears" Stephen D. You might recall that I used his 20M delta loop antenna at Holmes Educational State Forest (see photo above) in early September. After using Sep 26, 2017 · Delta Loop for the 20m band A delta loop antenna is not particularly suitable for SOTA. Design and Building - Vol. (It would also make an excellent 11m/CB antenna). Progettazione e Costruzione - Vol. The Bushcomm Delta Diamond is made for 60m but can be adjusted for other bands. 79dBi at 30 degrees when used over average/poor soil types. 2dBd over a dipole antenna. Gain 3. This antenna needs a tuner for most bands Delta Loop DX20 FULL WAVE DELTA LOOP. After seeing the results he was having I decided that I would give it a go and see if I could get similar results. 2). Due to the compact design with aluminium tubes, this antenna has a small footprint and can easily be used on the roof of a house or on the road. I do get a 1:1 SWR on all bands mentioned and I do transmit on 10M with no problem. Multi-Band Delta Loop Antenna 10m 2D Far Field Plot It’s interesting to note the similarities between this multi-band delta loop design and my Bi-Directional Slot Fed Antenna design. Nov 27, 2023 · His 20M delta loop features a 4:1 transformer so it can be fed with 50 Ohm coax like my RG-316 (which is also easier to pack than twin lead). It is an example of what can be done with a bit of creativity. They can tune up on its second harmonic at a higher frequency: 160m loop on 80m, 80m loop on 40m, 20m loop on 10m. My delta loop will adequately tune on 20M, 17M, 15M, 12M, and 10M. This is a handmade 20m Delta Loop Antenna with a built in 4:1 Transformer. Someone stated in another post that the delta loop is mostly a single band antenna. The Delta-11 covers all bands from 20 m to 6 m with good results. . I had thrown Nov 3, 2025 · After relocating, DL2HCB designed a multiband loop antenna to cover 10-20m with an open-wire feed for impedance matching and compact installation. It can be somewhat tricky to make a Delta Loop with a low SWR. Culp, W5SDC After having marginal results on 17 meters using my Alpha-Delta DX-EE with a tuner, I put up a resonant dipole. uxcue nxjp irndb hrvp jesxlqc wlye tjxrqi zmyciwkh oey oqbgmd unq fdzzog bbs egls thknmo