Small 40m antenna. I also have a homebrew ZM-2 tuner, and it works fine .

Small 40m antenna (6. Hence stations calling from the back side will also be discernable on this antenna. NEW!! 2024 Colour Change to reflect same as Expedition. No need to drill holes or make special brackets on your car to access the HF! Just fit a magnetic bracket or a boot lip bracket and you're ready to go HF! These brackets are very discreet and make it easy to get in 7 MHz Magnetic Loop Antenna Projects category is a curation of 12 web resources on , Small Transmitting Loop Project, Portable Magnetic Loop Antenna Version 2, 40m Magnetic Loop Antenna. Yagi-Uda antenna has the shortcoming of producing several inter-lobe nulls along 100 watt 2M, 440MHz, 15-40M MagLoop antenna, tripod, and 9′ feed-line. 4. The antenna is basically a full wave 80 meter loop on top and a 40 meter loop on the bottom all supported from a 64 foot center support Shark HamSticks cover a single band, fiberglass mast measures 36” with integral coil and an adjustable (removable) stainless steel whip. Description Additional information Q & A The Alpha MEGA Loop is a 10-40 meter antenna that is rated at 200W PEP SSB. With a handy fixing plate for the toroid, so no longer necessary for gluing. Add to Cart. 160m and 80m Morgain-Dipole Antenna. We can also provide you with custom settings to suit your operating preference such as peaking your gain and F/B in the CW portion or the Phone portion of the band. × Perhaps the biggest thing my station is missing is an 80m antenna. Stations worked on the 40m band from I like loops for two reasons, a) for my small garden plot, I can achieve in half the size, what other do with a full size dipole and b) a resonant loop will also resonate on every harmonic, that means tuning a 40m loop at 7. May 4, 2008 April 6, 2016 - by Joost. It actually works! When I first looked at the antenna, I was skeptical. The MFJ-1792 is a high-performance vertical antenna designed for 80 and 40m bands. You have probably built a dummy load! If you do seem to have all three then your feedline is part of your antenna system and you don't really have a small antenna. and vswr perfect all band. Over the past year or so, I’ve read many articles about magnetic loop antennas, questioning to myself are they really all that great compared to the typical dipole that I’ve been using for 3+ years. Restrictions include a pole on the side of the house at a height 36 ft and a Stations receiving FT8 signals from Isotron 40M antenna on January 19th, 2022 24 hour WSPR test with Isotron 40M antenna Completed QSOs made with the Isotron 40M antenna as of January 20th, 2022. Welcome to our new online shop Search for The band coverage includes 40m, 30m, 20m, 17m, 15m, 12m, 11m, 10m & 6m. I took down that antenna when the tree supporting it had to be The Alex loop is a small and lightweight portable Loop Antenna for 7 to 30MHz, ideally suited for radio amateurs with space restrictions or for your vacation and hiking trip. Ladder line, and to a Three different antennas could have worked here. My inverted-V at 40 ft. Well, I finally decided to give it a shot and build something from 7 MHz Magnetic Loop Antenna Projects category is a curation of 12 web resources on , Small Transmitting Loop Project, Portable Magnetic Loop Antenna Version 2, 40m Magnetic Loop Antenna. It is designed for The 40 meter half-wave dipole antenna, intended for NVIS duty, described in the schematic diagram above, is made portable for field work by using linear-loading technique which will yield an antenna span about 33% shorter than normal! The JK402 is a short boom 2 element 40m Yagi that has excellent gain and F/R. 1 and 11. The actual spacing is not critical because it is not used as balanced feeder, but it should be more than 20mm. The resource has been on our site since Saturday Apr 2 2016, and it has been viewed 2482 times. Adapters for your tripods. By John Portune W6NBC . En poursuivant Antenna Models. Since the GAP Titan DX did not completely satisfied me completely on 40 meters band, last summer I decided that the time to test some alternatives Expérience Radio Optimisée Élevez votre passion pour la radio à un tout autre niveau avec cette Antenne Dipole. The main radiator is a wire fed through a telescoping fiberglass pole. 90 ft. An 80 meter skyloop that fits in a cargo pocket is missing from our man-portable antenna options. Dual center and distributed loading lets you radiate efficiently -- you get more power out for working DX and ragchewing. When I am camping in provincial parks I try to erect my Shorty End-Fed Half Wave antenna for 80m so that I can check-in to a weekly CW net. Why not try this idea? Can I make a vertical antenna myself? The short answer is yes, you can make a vertical antenna on your own. Free Shipping; Multiple ImagesLoading Estimated Ship Date: Today. 27 – $ 6,705. In CQWW 160 CW N E W. 600 Watts. I really don’t have room for a full, half-wavelength dipole, so I’m looking for options. MODEL: EmComm_MagLoop. I have coax to the feedpoint and a cheap 4:1 balun there. Skip to content. All antennas are rated for 250W MAX Cushcraft XM240 Monoband 40 Meter Yagi Antennas utilize rugged Big Thunder hardware combined with high-strength aluminum tubing, which provides outstanding wind survivability. Get app Get the Reddit app Log In Log in to Reddit. A vertical seemed the obvious answer, a naturally low-angle radiator. The ultra lightweight loop is assembled without any tools within seconds and can be tuned with the supplied tuner to a perfect match. The NEC2 The parallel circuit used here was chosen because the antenna is so very small, its radiation resistance so very low on 160m. Our host had erected an 80m bazooka antenna, and one of the other guys had brought a multi-band trap dipole. JO21fe61bc. This HF Mini Mobile Whip Antenna is designed to let you mount an HF antenna with just a small magnet mount. The SteppIR UrbanBeam Yagi is a fantastic choice for those that are limited by lot size, regulations (HOA’s) or even the critical eye of neighbors and spouses. 98. SWR Sounder +$49. 160m Inverted Delta Loop. 2 Electric fields around static charges One simple way to generate electromagnetic waves is to vibrate electric charges, creating time-varying current. Often used as receiving aerials can be used as transmitting antennas“ Small Loop Antennas for 7 MHz Antenna arrays are discussed in Section 10. (at lowest freq. 160m Capacitance Loaded Vertical Antenna. VFO A on my dipole and VFO B on my vertical and I found the stereo image very interesting as the polarisation of his signal to me changed. This antenna is a quarter wave on 20m, collapses to less than Last month, I was given the opportunity to participate in a 30-day test and review of the Bilal Isotron 40M antenna for the 100 Watts and a Wire podcast. Please note that this is only for the coil and not for the complete antenna. ) below the guy rope. This antenna was designed with a specific purpose, to fit 80m and up into a small space!!. 4 Mhz. I am trying to finalize my equipment budget for getting started. Loop diameter Main loop diameter in cm. It utilizes end loading, which is known for its efficiency on 80m. It The bands like 30m and 40m are becoming more relevant for DX. On 40m the characteristics of the 2 element Yagi are similar to the JK402 or better. Permits changing bands without modifying the antenna. There is one point at right fence second point at left fence and I’ve just had an interesting discussion on 40m this evening with Peter, OH6GHI, also an antenna enthusiast. 90m for the outer loop (which is not based on Inspired by Peter VK3YE who recently created the Wadetenna, a 5 metre center loaded vertical for 40m, I built a similar antenna combined with a 4 wire ground plane. The 22ft boom 20m Yagi has been optimized for high gain and a good F/R with good SWR performance across the band. 5MHz to 29. With some trimming on a I’ve just had an interesting discussion on 40m this evening with Peter, OH6GHI, also an antenna enthusiast. The ends of the radials were attached with small hardware to a coax chassis socket and then run along the baseboards from the corner where the antenna sits. May 24, 2019 RHG Articles. SHERWOOD'S 40m - 10 m Multi Band Delta Loop DX antenna. Antenne portable CHAMELEON 40/20 FD HF Fan Dipole 40m et 20m sans tuner . My NCCC contesting buddies, however, convinced me that I was missing out on some big time fun with the ARRL 160 Meter, CQ 160 Meter, and Stew Perry Topband Challenge contests. Added a shunt inductance from the antenna mounting stud to the mounting bracket to bring the SWR down. An on the field comparison with the GAP Titan DX . Log In / Sign Up; Advertise Cushcraft HF Beam Antennas. Skip to the content. Evolving from a simple end-fed Marconi for 80m, this antenna design was Your 40m loop (that’s really 40m [or so] all the way around) will resonate on the 40, 20, 15 and 10m bands. If 40m is your favourite band then get yourself an advantage and put up this dedicated antenna, you will not regret it. A heavy duty 4 foot, 3/8 inch diamete Discover more from Wizard Wide Radio. 235 mHz this afternoon. 160m Loop Antenna for TX. Phillystran boom support trusses are used in the Cushcraft XM240 design for extra boom stability. I realize I'll have to protect the traps. I have a home-made . Resources listed under Receiving antennas category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators. The DELTA-40HP is a full wave loop designed to operate on 40m (7MHz), 20m (14MHz), 15m (21MHz) and 10m (28MHz) without an ATU and other bands with an ATU. Rapide Ham Radio Antenna (40m - 6m) Kit quantity. Turning Radius. The loop's electrical characteristics, such as its inductance and capacitance, are carefully tuned to resonate at a specific frequency or within a narrow bandwidth. Not Yet Reviewed. The antenna is ideal for local communications within 1000-2000 km of your location or for DX depending on how high the antenna is mounted and in what configuration. With a power rating of 1. Carr . I am overseas in the military so sending it 4 Element Yagi Antenna, 40m-6m Package $ 6,155. Why not try this idea? ON THESE THREE BANDS, the antenna we have been using (see below) is no longer considered a short antenna. Magnetic Loop Antenna Presentation to the Richmond Amateur Radio Club Many articles and video segments have been produced to demonstrate the use of magnetic loop antennas for amateur radio use. Evolving from a simple end-fed Marconi for 80m, this antenna design was Antenna for 10-40M. As shown by the arrows, the currents are in phase for radiation broadside to the loop (towards the viewer). The QBV 40m/20m-10m Antenna is a small, portable, vertical antenna kit. –Stealth antennas This allows magnetic loop antennas to be relatively small compared to other types of antennas, making them suitable for constrained spaces or portable applications. 5Mhz to 30Mhz | Mobile Antenna £ 89. I have built small transmitting loop antennas for frequencies ranging from 3. No need to drill holes or make special hard mounts on your car to get on HF! Put on a magnet mount or trunk lip mount and you are ready to go HF mobile! SilverTip Antennas is a small family-ran company from Virginia that makes a wide variety of excellent products; one of which being their portable 20m vertical. SKU Mega-Loop Categories Base VHF UHF HF Magnetic Loop MagLoop Antennas, Base VHF UHF HF Yagi LPDA Beams, Portable VHF UHF HF Yagi LPDA Beams Tags MagLoop, Yagi. 10. $2,459. 7MHz. APRS Tracker; Online logbook; Archive; Search for: Main Menu. The practical upper frequency limit for HF Antennas for Small Gardens 40m 66'5” 132'10” - - - 80m 133'9” - - - - 60ft neatly fits in! Also – it is within 10% of quarter wave resonance on 80m – works on all bands Other shorter values can be found but 80m efficiency will suffer It's quarter wave thus it needs a good RF ground Counterpoise radials OK Just under surface radials OK (mine are pushed down in between the About the AMPRO-40 : 7MHz 40 Metre Mobile Antenna You're reviewing: AMPRO-40 : 7MHz 40 Metre Mobile Antenna Nickname This MFJ monoband mobile HamTenna Whip makes HF mobiling fun and easy! Theyre small, lightweight, efficient, and super easy-to-use. AMPRO-40T - HF Mini Stick 40M Mobile Antenna. The Dual Beam Pro is a non-resonant design which presents a broadband match. Haute Capacité avec Balun Inclus Plus besoin de compromettre sur la Four-Band Coverage: The antenna supports operation on four key amateur radio bands: 7MHz (40m), 14MHz (20m), 21MHz (15m), and 28MHz (10m). piece of vertical wire to one end of 40 meter mini Moxon Antenna A in interesting Moxon Antenna for the 40 meters band. Estimated Ship Date: Jun 13, 2025 Would you rather pick it up? Select Location. I was using a Windom antenna for 40m but could never work DX with it, which is what I really like to do. Resonant on 20, has an optional 40m coil, and is tunable via the whip. 41 Select options This product has multiple variants. Its not quite square but the far side and the near side are completely different lengths to make it nearly a triangle. In fact, I was a bit cynical about ever being able to put up an effective 160 meter antenna from my rather small California city lot. 48 – $ 4,864. The box has a sticker on it telling me it's a cb antenna, the antenna has a sticker on it, telling me it's 40m. Now comes my query. I have it installed as an inverted V with both ends only 8′ above ground and the centre up at 30′ supported by a tree in the garden. No need to drill holes or make special hard mounts on your car to get on HF! Put on a magnet mount or trunk lip mount and you are ready to go HF mobile! Diamond Antenna W8010 Wire Dipole Antennas W8010 Antenna, Wire, Coil Loaded Shortened DoubleDipole, 80, 40, and 15m legs and 20 and 10m legs, 1. 4, followed by aperture and more complicated wire antennas in Sections 11. The store will not work correctly in the case when cookies are disabled. 0 ft. It M0CVO. Not quite. Home » Equipment » Antenna » EAntenna 40m Bazooka Antenna Review. There is one point at right fence second point at left fence and The Xiegu VG4 is a 4-band ground plane antenna made of weather-resistant aluminum alloy, covering the 40m, 20m, 15m, and 10m bands. I use 50cm of this cable for the coupling loop and 2. EAntenna 40m Bazooka Antenna Review Posted in Antenna, Equipment, Featured, HamRadio. For instance, DX Engineering DVA Dual Vertical Array systems and four square arrays from COMTEK and DX Engineering or any other four-square array controllers. - Just the thing to fit in a small space such as the house attic. There is a 4:1 balun at the feedpoint enabling it to be fed directly with 50ohm coax - RG-213 or Mini 8 is probably the OptiBeam HF Directional Antennas OB2-40M-P DBO-OB2-40M-P. The antenna features a 1. On 30m the antenna is just short of 1. I began by looking at a classical quarter wavelength “ground plane” antenna at Delta Loops are mono band antennas, that works well also in their second harmonic. XM240 beams feature a 50 ohm direct-feed system with VSWR On 40m, where the antenna is 1 wavelength, the pattern is still maximum broadside to the antenna, but with a little bit more gain, and the lobes are a little narrower. Cette. 27 Select options This product has multiple variants. Backyard is 46'x42'. conductor resistance increases. 27) and illustrated in Figure 10. 6in. The whole thing is fed with standard 50 ohm coax from an MFJ antenna tuner. After building and then testing the antenna for a month, I was invited to participate in the podcast along with two vertical antenna projects for the 40 meters band category is a curation of 45 web resources on , Vertical antenna for 40 and 80m, Slink-ette antenna, The Hudson antenna. 160m Inductance-Loaded Shortened Dipole. Resource Details You will find this resource in just one category on our links directory. Description Additional information Description. L'antenne CHAMELEON 40/20 FD Fan Dipole est une antenne HF Higher frequency band versions are at 20m above the surface of ground whereas the 160m band version of this antenna is hoisted to 40m height. It Least served by my other antennas are the 40m and 80m bands, so I included a coil “trap” for 40m in the design options options for this big inverted L. 1 Page 1 of 1 Modal Header. Cushcraft XM240 Monoband 40 Meter Yagi Antennas utilize rugged Big Thunder hardware combined with high-strength aluminum tubing, which provides outstanding wind survivability. My requirements at the time were: Covered all 5 pre-WARC HF bands (80m, 40m, 20m, 15m, and 10m) Capable of covering both ends of the 80m / 75m band (3. Receiving only antennas category is a curation of 96 web resources on , W1TAG LF Receiving Loop, Triband Receiving Loop for 160/80/40m, The K7TJR Array 160m antenna. Female 3/8 24 adapter +$24. The antenna was then tuned to the portion of the 80m ground plane antenna with radials . This product is from a small business brand. How much you'll work on it is anohter story but any antenna is better than no antenna. Frequently bought together. No need to drill holes or make special hard mounts on your car to get on HF! Put on a magnet mount or trunk lip mount and you are ready to go HF mobile! Invisible antennas do not attract unwelcome attention. Most modern transceivers have built in ATUs that will provide a match for some bands but an external ATU will be required to access all the bands. If you are 40m & Short 80m antenna was deployed as a sloping wire antenna using the 10M fibre glass fishing pole and a hook on the house‟s gutter-board. This antenna also gives a usable SWR (<3:1) on 20m and 40m (and possibly 10m and 15m too although I don’t often use those bands). This MFJ monoband mobile HamTenna Whip makes HF mobiling fun and easy! Theyre small, lightweight, efficient, and super easy-to-use. It is almost full size on 30m and 40% longer than a 20m dipole, but on 40m it is about 30% too short. (7m) Boom Length, 22. 37m top capacitance hat and a high-Q coil. This antenna is made for the Ham operator that ís looking for a compact dipole antenna to work on 40M. Estimated Ship Date: Today. Male 3/8 24 adapter +$26. vs. Part Number: IVA-DXC-240. 1 Mhz means I also get 14. G5RV 40m Beam Antenna. Resources listed under 40m dipole antenna category Small HF Antenna by Harry Lythall - SM0VPO. I am overseas in the military so sending it AMPRO-40T - HF Mini Stick 40M Mobile Antenna This HF Mini Mobile Whip Antenna is designed to let you mount an HF antenna with just a small magnet mount. NOW shipping with HCL Ezyclamps AND the Grey UV stable plates . FAQs How do I choose the right amateur antenna for ham radio? Antennas for Small Spaces 6 November 2020 CCARC General meeting Jeff N7TCV. No need to drill holes or make special hard mounts on your car to get on HF! Put on a magnet mount or trunk lip mount and you are ready to go HF mobile! Part 2 of the shortened 40m inverted V antenna project : first field test. For 40m, it incorporates a full-size quarter-wave radiator. Lose the giant enclosure, reduce the weight of the wire, and downgrade its power handling to 50 watts data. Topics •Introduction •SWR •Antenna Tuners •Antenna Analyzers •Sample antennas Antennas for Small Spaces 2. Evolving from a simple end-fed Marconi for 80m, this antenna design was created by 40m & Short 80m antenna was deployed as a sloping wire antenna using the 10M fibre glass fishing pole and a hook on the house‟s gutter-board. 27m=4. 2 for 80m and 1 for 40m. It is even more difficult to build efficient antenna if you are limited by small gardens and irritating neighbours. Final Thoughts. These antennas are very small if compared to the full wavelength. Thanks Peter for the inspiration. 41 – $ 2,874. In some cases the resistance may be inloss trinsic to the Home » Equipment » Antenna » EAntenna 40m Bazooka Antenna Review. 2, 12. Categories: All Antenna Kits, Classic Antenna Kits. Vlaams Instituut voor Biotechnologie. The performance of this antenna on the 40m band is excellent, if I can hear the DX normally I can work them regardless of where in the world they are located. g. SHERWOOD'S ANTENTOP- 01- 2014 # 018 Simple Broadband Antenna for the 40- meter Band Igor Grigorov, va3znw The Simple Broadband Antenna was designed on base of my local environment and taking into account the ease/cheap to do. It is definitely possible, after all you can get those small mobile whips for 40m that are only a couple of metres long. New HexBeam from MFJ delivers solid gain and directivity on 40, 30, 20,17, 15, 12, 10, and 6 Meters in a low-profile package that will have yourpocketbook and your neighbors smiling!The MFJ-1848 uses an updated G3TXQ element configuration for excellentgain, improved bandwidth, superior front-to-back ratio and low SWR - 40 meter Loop antenna projects category is a curation of 13 web resources on , Receiving antenna for low bands, 40 Meter Full Wave Loop, 40 M. 00 MHz 500 wattsNew style resonant end fed antenna requires I want to put up a wire antenna in my backyard for 40m. " Figure 14: The antenna built by Nick (KE4ZMY) (photo ©2019 KE4ZMY, Contents 0:00 Introduction 0:42 Making the most of a balcony with verticals 4:02 Hanging wire from balcony 5:31 Horizontal antenna in attic 7:03 Making use of opening windows 7:43 Getting RF out of non-opening windows 8:52 Vertical in courtyard 10:03 Inverted L or end-fed 12:50 Only a few items needed 13:22 Oblong loop 15:56 Flagpole antenna 17:53 Wire With that said, If I were Chameleon Antenna, it would be smart to design a man-portable version of this antenna. 5MHz) and 40m (7MHz) but are a bit concerned about how much space you will Three different antennas could have worked here. Buy Now. Easily tune your Mono Band with Justin G0KSC has combined the use of high-efficient, wide-spaced coils and capacity loading to produce a 12m wide 40M rotating dipole with a radiating efficiency of just over 89% along with Build a space efficient trapped dipole antenna for 40-80-160 meter bands using RG-58 and PVC pipe. Last but not the least, the Hex-beam features a very broad frontal azimuth beamwidth. Normally most general purpose matchboxes will have no problem matching this antenna on those three bands and even higher bands. Scaling this antenna for 40m and up is possible by halving all the dimensions, but at just 12ft height, the antenna would not be fantastic. Ce site internet utilise à la fois des cookies propriétaires et des cookies tiers afin de vous offrir une plus bonne expérience et services. 50 Ex Tax: £68. In summary, the Cobweb 7-band Whip Antenna, Mobile, HF Mini Stick, 40M, 250W SSB/100W CW/ 50W Digital, 2-Piece, Wire-Wound Fiberglass, 25. My personal challenge was to fit an antenna into a VERY SMALL area at the front of a property. This antenna is a full wavelength single-delta-loop, with the point of the triangle at the top of the single support pole, and fed near one of the corners - One Quarter Wavelength down the Shark HamSticks cover a single band, fiberglass mast measures 44” with integral coil and an adjustable (removable) 48" stainless steel whip. of course i add in 3 ground radial. 82 Add to cart; BigIR Mark IV Vertical Antenna, 40m-6m Package $ 2,324. 5 : 1 or better across the 7. Plus, they’re portable so they’re great for RVs, campers, and ANTENNA DESCRIPTION. ly/2DlXCxh. 2 kW PEP, SO-239, 63 ft. November 28, 2024. Practical Antenna Handbook - J. Options. Conçue pour offrir une performance sans précédent sur les bandes 80m et 40m, cette antenne garantit une réception claire et une transmission puissante pour toutes vos communications. I am overseas in the military so sending it So a 5 metre one has just 25% of the efficiency of a 10 metre 1/4 wave on 40m. The question is: Can I run it without the extensions for 30m? I don't use 10MHz, so it will not be a great loss to me. On 40m this antenna still manages an SWR of 1. With 40m option (see user guide). The primary antenna was initially tuned for 40m and an SWR close to 1:1 was obtained over most of the 7. Assuming that the two coils are an equal number of turns, and that the wires attached to each side are equal in length, the center of an antenna should be a zero voltage point. The options may be chosen on the product page 3 Element Yagi Antenna, 20m-6m $ 4,341. 0-7. 2. At present it is down. ” 40m-10m DELTA LOOP ANTENNA - GU3WHN AIM 4170C Antenna RF Analyser results for the GU3WHN 40m Loop The following pages have a GAL-ANA model of the GU3WHN inverted Delta Loop. 000 MHz 500 Watts. This antenna is a quarter wave on 20m, collapses to less than 26 inches, and weighs just under 1. The remaining length, about 10 feet, goes up to the ridge of The 160m leg is another 63ft and has a loading coil 4ft long with about 40ft of wire space wound on it to reduce the length as I was pushing getting this thing on my small footprint of land. Specifications. No need to drill holes or make special hard mounts on your car to get on HF! Put on a magnet moun . Antennas/40M/40 meter Magnetic Loop Antennas; The title of the main category is 40 meter Magnetic Loop Antennas and it deals mainly with 7 MHz Magnetic Loop Antenna Projects. If you're new to the HF bands and want to This HF multi band antenna for small gardens that works well on 80 meters Main bands (@~50 ohm) are 80m / 40m / 30m / 20 / 17m / 15m / 12m A 14 meters ( 46 ft ) multi band antenna for small gardens that works well on 80 meters Main bands (@~50 ohm) are 80m / 40m / 20/ 30m / 17m / 15m / 12m . Short 40m dipole antenna, part 2. This is a more detailed description of the dipole kit I described in the Backpack Antennas article. NVIS isn’t just about antennas: it is a communications system that permits coverage up to 500 AMPRO-40T - HF Mini Stick 40M mobile antenna This HF Mini Mobile Whip antenna is designed to allow you to mount an HF antenna with just a small magnetic bracket. The manual tells me to extend the stinger to 28" for 40m but the stinger is only 12" long. The JK2040 Falcon has great performance characteristics on 20m and 40m. When you’re operating on 10 meters, the 10M trap exhibits a high impedance and electrically cuts off the rest of the antenna. This Hidden antennas, antennas for low space category is a curation of 71 web resources on , Low-Viz Rain Gutter Antenna Mount, Concealed DSS J-Pole, The flower pot antenna. Select your antenna wire below! I realize it's a reduced size antenna but the increase in performance from my previous antennas on 40m it great. But as part of that process we also have more complete studies on how to optimize antennas for this purpose. £64. I now run a 66 foot off center fed dipole (built a legal-limit balun for Chameleon takes the building block approach to a new level with their addition of three new products: The CHA Insulator, CHA Blank Adaptor, and CHA 40M Coil. Homebrew Magnetic Loop Antenna 40m – 20m. Introduction •Talking about apartment and condo antennas elicited comments and articles on things such as: –HOAs and antenna restrictions. After testing it for 30 days, I realize there are This HF multi band antenna for small gardens that works well on 80 meters Main bands (@~50 ohm) are 80m / 40m / 30m / 17m / 15m / 12m. The whole thing took A short doublet for 40m and above. Covering 40M, 20M, 15M, and 10M bands, it delivers reliable performance without the need for ground radials. Key Optimization Factor 4 – Loop Size . Mine is only about 20 feet off the ground, around gutter height. I have a TW-33 as numbered above. The Cobweb antenna’s unique design allows for tool-free assembly and disassembly, making it a convenient choice for both base installations and field use. SKU Delta-40, 40m full wave loop antenna. This document records the results from a number of experiments performed at my suburban QTH. 1 MHz Band. A short wire with an alligator clip is attached to the center conductor of the coax socket and used to tap the loading coil. The 40m element constructions do not need trussing unless you live in snow/ice conditions. For example, the Hustler 4BTV vertical antenna has three traps–10M, 15M, and 20M–with a capacity hat and tubing extension to add 40M coverage for a total of four bands. Antennas. The options may be chosen on the product page 2 Element Yagi Antenna, 20-6m “Small Loop antennas also known as Magnetic loop antennas are radio antenna made in a loop shape, and behaves electrically as a coil with a small radiation resistance. Support small. Vine Antennas RST-Skyranger-Plus TX 3. Note 40m efficiency is down relative to the other bands. No need to drill holes or make special brackets on your car to access the HF! Just fit a magnetic bracket or a boot lip bracket and you're ready to go HF! These brackets are very discreet and make it easy to get in Heights less than 5 meters can affect the performance on 40m. Propagation. 2, respectively. The original article can be found here https://bit. If this is true it should be an impressive benefit for otherwise compromised mobile operations. These antennas are very small if compared to the i mount the antenna between two palm tree and at the feed point i use a 1:1 choke balun made by Balundesigns. 17 ft. 95 Add to basket Buy it Now; Vine Antennas RST-G5RV-FULL | Steel Poly Weave (Full Size) G5RV HF Antenna £ 44. Not only will the antenna serve me well at Pigeon House, it will make a good low-profile antenna option for Mt Kosciuszko. 40 meter Yagi antennas, are complex to build due to the overall antenna dimension, and the world wide web unfortunately does not offer many projects, but we With thousands or even millions of tiny antennas in an array, each only 1 micrometer wide, the researchers can capture the scattered light with an optical microscope RAS Small Loop making all the difference on the W1VHF 4-5 pm eastern net on 7. This HF multi band antenna for small gardens that works well on 80 meters Main bands (@~50 ohm) are 80m / 40m / 30m / 20 / 17m / 15m / 12m A 14 meters ( 46 ft ) multi band antenna for small gardens that works well on 80 meters Main bands (@~50 ohm) are 80m / 40m / 20/ 30m / 17m / 15m / 12m . Resources listed under 7 MHz Vertical Antenna plans category belongs to 40M main collection, and get reviewed and rated by amateur radio operators. The durable materials used in its construction ensure longevity and resistance to environmental factors such as UV radiation. Estimated Ship Date: TodayLoading Estimated Ship Date: Today. Log In / Sign Up; Advertise Dimensions for 20m 2-element 200 ohm delta loop antenna 40m dimensions. The TW2010 was great for DX on 10-20m, but 40m DX was out of reach. With 226 contacts in the log spread globally over the winter here in the northern hemisphere I have no complaints about performance of this antenna on the 40m band. Three points there are need to install the antenna. 1 meters. ) Mounting option with loop on top Mounting option with loop on bottom . As I work mostly QRP, I need to minimize RF losses as much as possible. The parallel circuit used here was chosen because the antenna is so very small, its radiation resistance so very low on 160m. It is lightweight, small, and ideal for portable outdoor or wire restricted areas with a true two minute setup. The UrbanBeam has a unique appearance -some customers have remarked it looks like a bow-tie, or a butterfly! Regardless of its shape, the UrbanBeam delivers outstanding performance This HF multi band antenna for small gardens that works well on 80 meters Main bands (@~50 ohm) are 80m / 40m / 30m / 20 / 17m / 15m / 12m A 14 meters ( 46 ft ) multi band antenna for small gardens that works well on 80 meters Main bands (@~50 ohm) are 80m / 40m / 20/ 30m / 17m / 15m / 12m . , d=1. Figure 1 shows the antenna. At first, we decided not to use the antenna. Each is ruggedly constructed. Oversize; Special Order; Share with your friends . I happened to mention that I was listening to him on both VFOs. COMTEK 40VA Vertical Antennas are rugged, yet economical quarter wave antennas designed primarily to be used in sets with phased vertical array systems. 3 and 28. 160m Twisted Loop Antenna. PROMO. 8 metres tall and weighing 7kg, the KC-4 is easy to install with included mounting clamps and 160m, 80m, 40m Curtain Zepp Antenna. Total length approximately 20. The downside is that sourcing the parts separately generally cost the same (if not more) than purchasing a separate unit. At later sites the forest was too dense to put up If you have built a wide bandwidth, small antenna then you cannot have good efficiency. 5 out of 5 stars. This kit contains all parts to make a dipole antenna for the 40 meter band. My backyard is an L shape, I estimate about 18’ for one length How to properly split an antenna between receivers; Ham Radio 2m/70cm vertical dipole antenna; 80 Meter NVIS Antenna; 49:1 End Fed Half Wave Multi-Band HF Antenna for 8 My 2020 HF Radio Portable Field Kit-Ham Radio; Apartment, Attic, HOA, and Small Space Ham Radio A Stealth Indoor HF Radio Antenna; 40m Slopping Dipole vs Hustler 6BTV And we had a clear path to the East for more than 80 km (50 miles). I never measure the final length of a wire antenna – just how much wire I have to pull off the spool to make it. I'm trying to build a small magnetic loop for 5W on at least 40m - 20m following ideas of G4ILO's wonder loop. i would love to put full size antenna but my yard here ain't big 500 sqm . I was a little skeptical of a 40m antenna in such a small package, but after using it, I was impressed. Overview. VHF UHF HF (15-40M) EmComm MagLoop quantity. I have some trees, but don't really see getting anything higher than Skip to main content. Standing at 7. Typically, on those bands I receive 6-8 db lower reports then I would have had on 20m for a similar ranges. You might be able to reduce the SWR a little but you'll probably still need to tweak the antenna or use a tuner. UB640 - VL1-1; UB640 - VL1-3; UB640 - VL2-3; UB640 - VL3-4; 2 Elements Yagi 6-20 meters; 2 Elements Yagi 6-40 meters; 3 Elements Yagi 6-20 meters; UB20-MX - 3 Elem. Subtle yet effective, attic antennas attach to the underside of your roof. Availability: 34 in stock. Part Number: DBO-OB2-40M-P. Introduction. It is resonant on 20m without the added 40m coil, but requires a tuner for the other bands. The antenna was then tuned to the portion of the 80m La CHA Pocket OFCD est une antenne HF multi-bandes 40m - 6 m (7 à 54 MHz) de type WINDOM, dipôle asymétrique OCF (off-center-fed) et qui peut tenir dans une poche lorsqu'elle n'est pas utilisée. Other kind of loop antennas includes, magnetic loop, square loop, Skywire loops. The Rope Fuse. Resources listed under Loop Antennas for 40m category belongs to 40M main collection, and get reviewed and rated by amateur radio operators. 160m DX RX Loop Antenna. Over the past two months I have been playing with HF antennas in the range of 3. That's the nature of physically short or small antennas. The elements have been reduced in length with the use of our new air coil along with a newly designed capacity hat just past the coil. The list of major tuning / design parameters include the following: Length overall of radials, vertical section, and top horizontal section. Because we only planned to operate two transmitters, we figured that we’d use a tuner to load up the bazooka on 40m, and use the trap dipole on the higher bands. What would be a decent antenna for first time HF? I am looking for something for SOTA obviously, but also for use in a really small backyard. If you go for a random wire approach, MFJ-16010 is an L-match network which also works as your 9:1 unun. It's a kit. This document, illustrate an home made project about a moxon antenna for 7 mhz interely The new 40M2-MINI is an exciting, reduced size, 2 element 40M antenna. 5 – 4 MHz). Hence, the Hex-beam fills the gap in our arsenal of multi-band antennas by coving these bands. triangular full wave vertical loop. Height of the feed point where coax ends and wire begins. Part Number: EAN-R2010202. Antenna parts: • light duty 5 metre squid UrbanBeam 40m-6m Yagi Antenna. Maximum Dipole antenna projects for the 40 meter band category is a curation of 51 web resources on , Half-Length Dipoles for 40 Meters, 40M Inverted Vee, Dipole for 40 Meters by K4VX. The F/B ratio is also not high. See the complete parts list and details about the antenna wire at the bottom of the page in the product description section. Resources listed under Delta Loop category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators. 48 Select options This product has multiple variants. OptiBeam Antenna, EADELTA11, Rotatable, Small Delta Loop, 1 kW balun incl. Plans and projects on home made delta loops antennas category is a curation of 60 web resources on , F6EZX Deltaloop, 75 Meter Delta Loop Beam, Random lenght Delta Loop Antenna. Expand user menu Open settings menu. This is a guest post written by Nigel Booth (M0CVO) of M0CVO Antennas. There are, however, consequences and limitations to making larger Antenne filaire dipôle LEMM AT-44 7 Mhz Bande de 40 mètres Puissance maximale 900W L'antenne filaire Lemm AT-44 est fournie avec un balun central et son support de montage, ainsi que les 2 isolateurs. 5 to 450 MHz. Adding a 28 ft. 5 across the specified frequency range, this antenna ensures efficient power transfer to the connected transceiver. It was a long weekend and the weather was fine. Low SWR: With a standing wave ratio (SWR) of less than 1. Again, this is the major mag loop optimizing factor. There is are nulls Discover more about the small businesses partnering with Amazon and Amazon’s commitment to empowering them. I also have a homebrew ZM-2 tuner, and it works fine AMPRO-40T - Antenne mobile HF Mini Stick 40M Cette antenne HF Mini Mobile Whip est conçue pour vous permettre de monter une antenne HF avec juste un petit support aimanté. By: Mike Sorensen K9KQX. The UrbanBeam has a unique appearance -some customers have remarked it looks like a bow-tie, or a butterfly! Regardless of its shape, the UrbanBeam delivers outstanding performance The ends of the radials were attached with small hardware to a coax chassis socket and then run along the baseboards from the corner where the antenna sits. By efficient, I mean 30% or more. AMPRO-40T - HF Mini Stick 40M mobile antenna This HF Mini Mobile Whip antenna is designed to allow you to mount an HF antenna with just a small magnetic bracket. Because of the higher average height, the 200 ohm version doesn’t suffer quite as much from the lower height as the 112 ohm version does, and gives about 1 dB improvement at low angles. ICOM IC-7610. Small Yagi 6-20 meters; UB50 - 3 Elements Yagi 6-40 meters; 3 Elements Yagi 6-40 meters; 4 Elements Yagi 6-20 meters; 4 Elements Yagi 6-20 meters DX; 4 Elements Yagi i mount the antenna between two palm tree and at the feed point i use a 1:1 choke balun made by Balundesigns. Amazing HOA friendly HF Antenna under 7m in height. Collapsed, 3/8-24 Mounting Stud, Each. This is a fantastic mono band antenna for 40m. Add to cart. The far-field intensity \( \overrightarrow{\mathrm{P}}(\mathrm{r}, \theta)\) [W m-2] radiated by any antenna is a function of direction, as given for a short dipole antenna by (10. Yagi-Uda antenna has the shortcoming of producing several inter-lobe nulls along 40m Compact 4-Square Antenna – EA5AVL. Kit/Combo Contents. +44 (0)2392 313090 - CALL NOW +44 Found there was a little capacitive reactance at the feed point. The equation characterizing this radiation is very similar to that characterizing the Tip: Insert the 40m radiator wire through one end of a small LIGHTWEIGHT insulator before attaching its end insulator. I put up the I was using a Windom antenna for 40m but could never work DX with it, which is what I really like to do. for its Yagi Antennas (WRTC Special) WHY DIPOLES SHOULD USE A BALUN INTRODUCING. Instead of thinking no ATU, think how easily you can achieve that. References: Antenna Toolkit - J. The EA5AVL 40M Compact 4-Square Antenna was designed to provide excellent DX communications on the 40m band, utilising readily available components and be relatively easy to construct. 49. Free Shipping; InnovAntennas 10M and 6M Yagi Antennas 18485-1063. 0 – 7. It tunes to 1:1 on 6, 30 and 40m but with understandable significant loss in radiation patterns. If you have several unused antennas and wish to make the structure independently, it’s definitely possible. 40m band, C=4m=13 ft. Small Z-match ATUs exist, in kit or built form and they are good for QRP. This clip is of N1NTP in RI, and W1JJ in the far Northea RAS Small Loop making Tiny antennas on cells offer new ALS insights. , Tuner required for 6 bands, 20m 17m 15m 12m 10m 6m, 5. A 14 meters ( 46 ft ) multi band antenna for small gardens that works well on 80 meters Main bands (@~50 ohm) are 80m / 40m / 30m / 17m / 15m / 12m . Rob Sherwood: ANAN 7000DLE. Fractional point Long-range is the way to go if you want to improve your radio's reach. 400 watt dummy-load Wireless antenna switch Antenna tuners/couplers Measuring with a miniVNA Telescopic hand-crank antenna mast Attenuator/coupler Equipment bonding A small antenna a compromise between bandwidth and efficiencyexhibits whereby a small antenna with high bandwidth always has low efficiency. The result is a REDUCED The DS1 Antenna is a small, portable, vertical antenna system for 40m thru 10m. r/amateurradio A chip A close button. Did not need an antenna tuner. However their simplicity does come with serious compromises when used as a multi-band antenna. I wanted high efficiency 40 Meter antenna with low-angle radiation. 95 Add to basket Buy it Now; Vine Antennas RST-GRV-HALF | Steel And we had a clear path to the East for more than 80 km (50 miles). What will you need? Well, firstly, you will need approximately 40m of insulated I used to run a ZS6BKW and ran it just great, but had to switch to a slightly smaller antenna to keep landlords off my back. The JK401 is a simple Hi-Q coil loaded rotatable dipole, with a small footprint as well giving great performance on 40M. This year it will be 21 years since the very first application of my limited space quad band This is a fantastic mono band antenna for 40m. With the 40m coil it is only resonant on 40m. Product Code: HWEF 40 - 80m Coil for Small Gardens Availability: 6 Short Description: Coil and ready to go wire to extend our HWEF 49:1 and 64:1 40- 10 m antenna to cover the 80 meter band. The antenna comes with 4 ground SilverTip Antennas is a small family-ran company from Virginia that makes a wide variety of excellent products; one of which being their portable 20m vertical. Home; About ON3JT ; Shack; Projects. Sadly, this suggestion will probably be Don’t let a small garden stop you from getting on HF – including 160M! – reports Wythall Radio Club member Chris G0EYO. The Isotron is a strange looking and compact antenna that has reviews with an overall rating of 4 stars on eham. Before raising the pole, tie the other end of this loose insulator to the guy rope that is to suport the 40m radiator, about 1m away from the pole, such that it hangs about 10cm (4 in. On 20m the antenna is 2 wavelengths long. For a while, I used a W3EDP antenna, but to be honest, results were mediocre at best, and since the tuner I used was in the shack, there was always RF in the shack. The whole thing took CrankIR 80m-2m Vertical Antenna Package $ 1,525. . Journal Brain Funder Fonds Wetenschappelijk Onderzoek, KU Leuven, ALS #hamradio #hamr #antenna #radioDemonstration of a linear loaded 1/4 wave vertical amtenna that shows (at least) in modeling that it is as efficient as a full According to the literature, small “magnetic” loops like this have an antenna aperture similar to a full size dipole. Estimated Ship Date: Jun 13, 2025. I don't hear alot about this online. It was time for me to get on the Topband End feds are easy to set up with a fibre pole but 40m is quite long so you'll struggle a bit. My Loop Antenna November 20, 2013 9 Characteristics of Small Loop Antennas for HF Operation • Coupling loop ≈1/5 diameter of main loop for good impedance matching on all Inverted-U dipole for 80/40m 40-10m "Yo-Yo" portable wire dipole Multi-band End-Fed 20m half-size Yagi-beam- SM0VPO-style spiral loops (80/40/20) Simple RF-probe Baluns, chokes, etc. 160m Inverted-L. 40m Add-On Dipole. ON3JT. Evolving from a simple end-fed Marconi for 80m, this antenna design was COMTEK 40VA 40 Meter Vertical Antennas. Co My previous Linear Loaded shortened dipole for 40 metres works well but is mono-band for 40 only. so i choose this small size that work for 80 and 40m. Although this online calculator is intended to assist with designing and building homemade, ham radio loop antennas for use in the HF bands, magnetic antennas have been constructed that function in Characteristics of Small Loop Antennas for HF Operation e. Longerst Legs, Kit Part Number: DMN-W8010 The QBV 40m/20m-10m Antenna is a small, portable, vertical antenna kit. Ideally, a loop antenna is designed to be portable, easy to assemble, small enough to use when camping or operating in remote locations, and able to cover several AMPRO-40T - HF Mini Stick 40M Mobile Antenna. You're UrbanBeam 40m-6m Yagi Antenna. DX contacts have been made I want to put up a wire antenna in my backyard for 40m. On recieve, the TW4040 gives me 2-3 S units more than my windom, and Small transmitting loop antennas, commonly called "magnetic loops" or "mag loops," can give surprisingly good performance when they are carefully designed and constructed. ANTENTOP- 01- 2014 # 018 Simple Broadband Antenna for the 40- meter Band Igor Grigorov, va3znw The Simple Broadband Antenna was designed on base of my local environment and taking into account the ease/cheap to do. End Fed (or long wire) antennas are the most simple antennas an amateur can make for the HF bands. The TZ-OCF-40 is an Off Center Fed wire antenna designed to permit operation on the 40m, 20m and 10m amateur DX bands. I put up the AMPRO-40T - HF Mini Stick 40M Mobile Antenna. Several ham radio operators adopt delta loop wire antennas and array of delta loop antennas during their portable operations, being very easy to build and set up. Part Number: MKR-12-079. Learn more Report an issue with this product or seller. Full wave loop antenna, with feedpoint at bottom, showing current distribution on wires. With Kit includes : 110mH Coil only plus instructions. 4. 5kW PEP SSB, the MFJ-1792 is capable of handling high power levels. Subscribe now to keep reading and get access to the full archive. MODEL: Mega-Loop. This is the latest version. Open menu Open navigation Go to Reddit Home. It is switch selectable for the 40m band then switched for 20m through 10m bands. £68. 3 Higher frequency band versions are at 20m above the surface of ground whereas the 160m band version of this antenna is hoisted to 40m height. Attic or Loft Antenna. I finally decided to give the QRPguys DS1 a spin. 500 MHz to 30. They often perform much better than indoor antennas. FYI I made a two-element 12m/17m On the other hand, the Shorty 40 ties the inductors together and feeds the antenna directly from un-balanced 50 Ohm coaxial cable. Small Business . The antenna has been used very successfully over the 2007-2011 period during the sun spot minimum. Loop size is more a matter of choice than optimization. , Each . Please see the Amateur Radio antenna pages of Frank N4SPP It requires very a small tuning touch up for FT8 band. SWR is flat through the entire band. The Isotron is a strange looking and compact antenna that has reviews with an A more efficient version would be to feed a linear-loaded dipole short ham antenna directly with 450 ohm ladder line or 300 ohm twinlead. My basic problem is one of the the two radio amateurs nightmares - Hams have been making local contacts on 80m and 40m long before this mode was given such a fancy name to sell it to the military in the 1960s. 1 ft. Resources listed under Stealth Antenna category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators. So I assume it's a 11m antenna. 5 wavelengths, and the lobes off the ends of the wire are becoming more pronounced. The model was created assuming that the feedpoint impedance was 112 Ω, and that the bottom of the antenna with the balun was at a height of 2m above the ground. The Antenna is a full wave loop designed to operate on 40m (7MHz), 15m (21MHz) and 10m (28MHz) witho. How to construct a very small but efficient Antenna with PVC Plumbing tube and discarded fruit cans. But cheaper, or homebrew. The Delta-40HP. The document provides a brief guide on building a compact dipole antenna appropriate So I am going to describe a single antenna for both bands that should fit into most gardens. net. So, you’ve just got yourself a licence or a nice new HF transceiver and are hoping to be active on the lower frequency bands of 80m (3. Since the GAP Titan DX did not completely satisfied me completely on 40 meters band, last summer I decided that the time to test some alternatives And one critical realization was that, when making antennas using small insulated wire, the measured wire length to use was a different matter from the length of the dipole itself, which is what the standard formulas provide. I ordered the 40m HF Stick and what I received, well I don't know. The remaining length, about 10 feet, goes up to the ridge of Figure 1. The two are inextricably parameters linked, in that it is the same resistive losses both broaden the bandwidth and reduce the that efficiency. Learn more . Antenna directivity and gain. 90 Buy Now . HWEF 3. 95 Add to basket Buy it Now; Vine Antennas RST-Skyranger TX 7Mhz to 50Mhz | Mobile Antenna £ 79. Female 1/4 20 adapter +$9. (A good site is perhaps more important than a good antenna!) I used the antenna for 2 or 3 years, until I had an injured foot and couldn’t scramble up and down the slope to install it, so I put up a quick 40m doublet instead. The bigger loop utilised the loft / attic space and at the time of installation, about 10 years ago, I was worried about However, it is very difficult to make an efficient antenna. 5 lbs. For this, I'm using coax with a ~2mm copper core and ~1mm spacing to the braid (see 1st image below), with braid and core connected on the ends. 1. performs well, but is “a cloud burner,” good for local contacts within 500 miles. 80 m - 10 meter band HWEF antenna for 3. We can also provide you with custom settings to suit your operating Antenna, DXC-240, Yagi, Compact HD, 40m, 2 Elements, 23. The interna . Out of stock . Pas besoin de percer des trous ou de faire des supports spéciaux sur votre voiture pour accéder à la HF ! Installez un support aimanté ou un support de lèvre de coffre et vous êtes prêt à vous A small antenna for all amateur bands, including 80 meters, and in a small garden without the compromise. A heavy duty 4 foot, 3/8 inch diamete I have spent all my free time researching which radio to buy and have not looked into antennas at all. The options may be chosen on the product “Small Loop antennas also known as Magnetic loop antennas are radio antenna made in a loop shape, and behaves electrically as a coil with a small radiation resistance. 95. It is resonant on 40m and 20m but a tuner is required for 17m through 10m. 50. If 40m is your favourite Our selection of limited space small loop antennas offers great options for small lots, apartments, condos, hotels, and even homeowners associations with tight restrictions. Antenna gain G(θ,φ) is defined as the ratio of the intensity P(θ,φ,r) to the intensity [Wm-2] that would Very small antennas, such as magnetic loops, are extremely subject to loss if radiation resistance gets low compared or . The 160m leg is another 63ft and has a loading coil 4ft long with about 40ft of wire space wound on it to reduce the length as I was pushing getting this thing on my small footprint of land. Pros: 1. Not Yet Reviewed Portable HF End Fed Antenna 1:30MHZ FE8 CW SSB 1:49 Balun Short Pocket End Fed Radio Antenna, with PVC Material, for 40m, 20m, 15m, 10m Communications Small Loop antennas or Magnetic loop antennas are radio antenna made in a loop shape, and behaves electrically as a coil with a small radiation resistance. These antennas are very small A dual loop antenna, ZZ Wave Net HF Wire Antenna Project by VE6VIS. A short doublet for 40m and above. This makes a handy place to tie your I've been seeking out ideas for an ultra-portable table-top style antennas (ala elecraft ax-1). By virtue of its design a Cubical Quad antenna has fewer spurious lobes thus producing a neat forward main lobe devoid of any prominent inter-lobe nulls. 73 m) Turning Radius, Stainless Steel Hardware, Each. No more excuses. This item: Shark Antennas S-FM40 Mono Band HF 40 Meter Mini Mobile Last month, I was given the opportunity to participate in a 30-day test and review of the Bilal Isotron 40M antenna for the 100 Watts and a Wire podcast. At later sites the forest was too dense to put up HF Antennas for Small Gardens 40m 66'5” 132'10” - - - 80m 133'9” - - - - 60ft neatly fits in! Also – it is within 10% of quarter wave resonance on 80m – works on all bands Other shorter values can be found but 80m efficiency will suffer It's quarter wave thus it needs a good RF ground Counterpoise radials OK Just under surface radials OK (mine are pushed down in between the KC-4 4 Band Vertical Antenna (40M/20M/15M/10M) The KC-4 is a robust, 4-band vertical antenna designed for base station use, supporting up to 1000 watts PEP. On recieve, the TW4040 gives me 2-3 S units more than my windom, and The JK402 is a short boom 2 element 40m Yagi that has excellent gain and F/R. More Resource Details You will find this resource in just one category on our links directory. Resources listed under 40m Magnetic Loop Antenna category belongs to 40M main collection, and get reviewed and rated by amateur radio operators. These antennas increase your gain significantly. This antenna is made for the DX'er thatís looking for an antenna to work across the globe. iqwgscl dmchx cpuktck ptp cxexras tdrvct mvfpu kmxegyu bnnyjl ygeb