You have no items in your shopping cart. the antenna will still work, albeit with higher vertical radiation angles and gains that are lower by 3 or 4 dB. LDG is carrying on the tradition. It was about equal to the wire antennas on AM BCB and not quite as good as the wire antennas on HF. In such a case, a lot more separation would be needed. 5-Band 5-element HF beam antenna Rotary 5-Band Antennas - Let's Compare Them 6BTV Ground mounted vertical antenna install / protection question. I'll likely never setup a beam so this second antenna will be it. There have been many manufactures over the years that built half wave vertical antennas that had only a few short radials. For non-resonant end fed antennas, the typical feed point impedance is 300 to 600 ohms and a 9:1 impedance transformer (e. 69-70 If the thought of a high-visibility HF antenna leaves you cold, it's time to branch out and get to the root of the problem. Antennas demonstrate a property known as reciprocity, which means that an. It has gain and wave angle comparable to a full-sized ¼λ ground plane antenna with radials. (G9D01) An NVIS antenna typically installed between 1/10 and 1/4 wavelength above ground. Sirio Gain-Master CB Base Station Antenna Review Vertical base station CB antennas are the most commonly used type of antenna for base installs. No Radials needed from 80-6M. Some things to keep in mind when trying to build a good shortened vertical: Install the antenna (incl. 2 (below) shows the azimuthal (horizontal) and elevation (vertical) patterns for a typical half-wave horizontal dipole antenna mounted one-quarter wave above ground. This is the first of a series of videos on the Hustler 5BTV 5 band HF vertical.



K5OE Antennas-- HF Antennas 40/80/160 55 ft Vertical HF All-Band, No-Tuner , Horizontal, Center-Fed Antenna From W5DXP Build a Space-Efficient dipole Antenna for 40, 80, and 160 Meters (570,975 bytes, PDF file) QST July 1992, pp. The first antenna everybody probably makes is a dipole and the second a quarter wave vertical. Bob is the host of the popular Ham Radio broadcast, Ham Nation as seen on Twit TV and has featured and demonstrated this phased array system on two separate episodes. We used an antenna analyser, and established the 80m SWR was 6 to 1, but all the other HF bands 40m to 10m were well under 2 to 1. The monopole antenna was invented in 1895 by radio pioneer Guglielmo Marconi; for this reason it is sometimes called the Marconi antenna. When properly installed on your vehicle this antenna will provide continuous coverage from 3. Single radial vertical beam – Takes up about twice the space needed by a single vertical element but not really complex to setup. Antenna analyzers are designed for testing, checking, tuning or repairing antennas and antenna feedlines. narrowing the beamwidth in the vertical or elevation plane. Minimizing this loss is the purpose of the ground system associated with a vertical. Since a half-wave dipole (some 125 feet long) is a difficult thing to fit into an average city lot, and particularly hard to raise 1/4 wavelength (62 feet or so) above ground, the average amateur antenna will not give as good results as the standard selected. The 43 Foot Vertical Antenna. Many know what to expect from a dipole, I will try to compare this allrounder theoretical and practical with a shorted VERTICAL dipole antenna which can be set from 10-40 meter. The HF Antennas used for long range communication (beyond 1000 KM) operate in frequency bands between 1. Knowing what the bands and meters are and how they work will help you choose the right antenna for your radio. I'll likely never setup a beam so this second antenna will be it. This will enable the ground losses to be calculated. com forums, and other local ham radio communities. 11m CB band Usable on lower and higher bands with reduced performance. Latin America Probably doesn't need listening antenna.



Mobile HF Stick type antennas - Comparison and Questions (self. High-frequency radio antennas: These are high-frequency antennas that typically operate in ranges from 3 to 30 megahertz. View as Grid List. The other antenna under measurement, the vertical whip does not have an omnidirectional pattern because it has coupled with the nearest HF antennas and masts. Diamond ® Antennas are sold through authorized dealers. The Butternut HF9V Vertical as a Ham Radio ALE Antenna. net is a Web site dedicated to ham radio (amateur radio). 450 ohm average antenna impedance to 50 ohm coax, also know as a 9:1 unun). 0 MHz coverage! With the AV-680, you get the same great traditional performance of the AV-640 on 6 through 40 Meters plus top-to-bottom capability on 80 and 75 Meters. Furthermore, if the return. I'll likely never setup a beam so this second antenna will be it. The standard to which the vertical is compared is a half-wave horizontal antenna 1/4 wavelength above ground. HFpack helps operators to choose the right antennas. Vertical Dipole Portable Base Mobile Alpha Magnetic Loop antennas. Nick Henwood G3RWF Graphic Design - G8ODE 3 Mar 2009 iss 1. I run one of these myself and run 40m, 30m, 20m, 17m, 12m and 10m elements. How to build a monoband HF Vertical Quarter Wave Ham Radio Antenna; Is a Dipole better than a Cobweb Antenna? Ham Radio Aerials. The next graph examines the take off angles on 10m to Europe.



Do not be fooled with statements that the Hi-Q Antennas are TO EXPENSIVE. What's more, with proper matching, it also performs very well on the 20 meter band. Starting at: $350. There are mods for 160m and it might even work on 6m with some tuning. Vertical; Given the layout of the my house's lot, a second antenna would be easier to install if it were a vertical. Antenna gain is measured in either dBi or dBd. QRP is an important aspect in HFpack for equipment and antennas. For additional information on the Comet CHA-250B HF vertical, contact NCG Com-. Butternut HF9V Vertical as a Ham Radio ALE Antenna Benefits to the ham radio ALE operator: No tuner needed. efficient, omnidirectional broadband vertical antenna that requires no tuner. Perhaps he is right for many things, but for ham radio folks evaluating antenna choices a popular answer for the height of a vertical antenna for the HF bands appears to be 43. On the one hand you need to cart all the stuff with you so there is a definite "less is more" attitude here. Lionel now has generously put together a table comparing a number of popular 6m antennas to help guide Magic Band operators on antenna decisions. For vertical polarisation, all antennas were rotated 90 degrees. But high wind survival is not the whole story. A Heavy Duty, Self supporting vertical HF antenna for HF 43' long. Higher performance, HF Multiband DX Flagpole Antenna covering 3. The vertical antennas require a ground radial network which is crucial for proper operation. The reference antenna is a 4 element Yagi at 60', an excellent contesting antenna.



Then your only efficient option is to run a vertical dipole, and match it at the feed point with some kind of remote tuner or equivalent. 75-meter about 20 kHz. com Quality antenna systems by Mosley Electronics. Easily deployable HF magnetic loop antennas, also called small transmitting loops, have been routinely used for many years in military, diplomatic, and shipboard HF communication links, where robust and reliable general coverage radio communication is a necessity. HF vertical with an end fed wire The graphic shows the comparison with both antennas. A vertical HF antenna can get away with a height of only λ/4. K5OE Antennas-- HF Antennas 40/80/160 55 ft Vertical HF All-Band, No-Tuner , Horizontal, Center-Fed Antenna From W5DXP Build a Space-Efficient dipole Antenna for 40, 80, and 160 Meters (570,975 bytes, PDF file) QST July 1992, pp. An on-the-air comparison was made between the portable whip dipoles up 20 feet and half-wave dipoles for 40 and 75 meters. There's not a whole lot of comparison reviews I can find re antennas I'm considering a Diamond CP5H or CP6AR or a Cushcraft R6000 the Diamond seems to cover more bands and I've used them successfully for UHF/VHF I'm trying to get the best performance for the smallest footprint as I'm on a small lot (30' wide) and I have neighbors so I don't want anything too obtrusive. HF Vertical Antennas and Packages (52) HF Vertical Antenna Add-On Kits (22) HF Vertical Antenna Feedpoint Kits (7) HF Vertical Antenna Mounting Tilt Base Parts (7) HF Vertical Antenna Replacement Parts (7) HF Vertical Antenna Remote Tuner Mounting Kits (5) Guy Rings (3) HF Vertical Antenna Mounting Tilt Bases (3) HF Vertical Antenna Rope Guying. I carried out a survey in early 2014 to try to discover which portable HF antenna was most popular. Shakespeare® marine antennas are the result of decades of continuous improvement of design and manufacturing, and close collaboration with marine professionals. This antenna is EXTREMELY easy to assemble, requires no tuning or adjustments and VSWR is under 1. Most common verticals are simply a piece of wire or aluminum tubing mounted vertically, but others, such as those designed for mobile use, are significantly more comp. S9 already had a fine reputation on their line of verticals, including the 43', 31', and 18' models. I run one of these myself and run 40m, 30m, 20m, 17m, 12m and 10m elements. Hustler 5BTV 5-Band HF Vertical Antenna.



Why build antennas out of copper and not aluminum or stainless steel. I run one of these myself and run 40m, 30m, 20m, 17m, 12m and 10m elements. Easily deployable HF magnetic loop antennas, also. characteristics of a vertical monopole antenna used with. Hi all, I was an avid CB user from when my father bought his first SSB CB radio in the mid 70's. Welcome to 4x4 Ham. For non-resonant end fed antennas, the typical feed point impedance is 300 to 600 ohms and a 9:1 impedance transformer (e. The center of the vertical Moxon is at the same height as the top of the vertical. A whopping 11422 miles from my QTH. You can buy lots of stuff there, including electronic parts and my books. Do not be fooled with statements that the Hi-Q Antennas are TO EXPENSIVE. This is a very common site limitation for any HF antenna on the lower bands. This is the first of a series of videos on the Hustler 5BTV 5 band HF vertical. At the lower end of the HF spectrum, the λ/2 height requirement for horizontal antennas can become cumbersome (even though horizontal phased arrays have a less stringent min-imum height requirement). They are made with the best materials and top of the line workmanship. While 1/8th wave works reasonably well, better coverage is obtained if the antenna is mounted at about 1/20th wavelength above ground. scanners and antennas; cb and 446 handhelds; antenna masts - poles - brackets; coax cable; amateur radio. Often bought by those who have a 1/2 wave vertical but want to put more effort in the antenna system.



You can certainly ask everyone for an opinion and you will get a lot of answers, but always ask what can they compare their favorite antenna to that makes it stand out as a good performer. Some things to keep in mind when trying to build a good shortened vertical: Install the antenna (incl. Many know what to expect from a dipole, I will try to compare this allrounder theoretical and practical with a shorted VERTICAL dipole antenna which can be set from 10-40 meter. "tuner") with balanced feeders for multiband HF operation. The objective of this shootout was to test the efficiency of pedestrian antennas on the popular 14MHz ham band--- antennas which can be easily carried around by the operator. com For many amateur radio operators, a vertical antenna may be the only option they have to put up an HF antenna. Vertical Kayak Rack makes mounting a pair of kayaks on your dock a snap without sacrificing any dock surface area. 0 MHz coverage! With the AV-680, you get the same great traditional performance of the AV-640 on 6 through 40 Meters plus top-to-bottom capability on 80 and 75 Meters. Remote Automatic Antenna Tuners and the 43 Foot Vertical Figure 1 — Test setup used by the author for measuring expected tuner loss with a load that simulates the impedance of a 43 foot vertical antenna on 160 meters. com Joined:2019-07-06 Beta blockers uk buy online | Eight Antennas Wifi Network Drone Jammer With 150M Jamming Range. FOR SMALL SPACES Whether for portable, camping, or just for a small back yard, here is an antenna that is quick and easy to erect, and will get you on ALL bands from 80 through 10m. Home • Products • Technical Info • Sample Photos Warranty • Dealers • Contact ©2010 RF Parts Company. Common Antennas For Portable Use. ThingMagic M2 (HF) RFID Reader Module Evaluation Kit. The Little Tarheel II antenna like all of our motorized antenna models are built to meet the highest standards but in a smaller size. In comparison,. com Quality antenna systems by Mosley Electronics. I run one of these myself and run 40m, 30m, 20m, 17m, 12m and 10m elements.



Lots of speculation goes into antennas for portable use. analyze Yagis, quads, phased arrays, towers, loops -- nearly any type of antenna or parasitic structure. Curtain array - Large directional wire transmitting antenna used at HF by shortwave broadcasting stations. Best to have 2 antennas to compare signals! Devote at least a year to test antenna before giving up on an antenna. Vertical antennas are very popular for HF operation because they fit in well to a small garden. Common Antennas For Portable Use. This shortened easy-to-build vertical, with no-radials, is made from surplus military camouflage poles. at December 07, Linear loading for vertical antenna ("Flagpole antenna") 40m wire antennas comparison. Many people are happy to operate with (or purchase) an antenna which has a gain of perhaps 10 or 20dB less than ¼ wave vertical or a half wave dipole, but because they have a few good contacts and have not been able to compare it against a anything better, they believe it is working well. The last series of compact 160 meter antennas were not that satisfactory. 69-70 If the thought of a high-visibility HF antenna leaves you cold, it's time to branch out and get to the root of the problem. Upgrade the mount of your CB/HAM radio in your pick-up today! Walcott Radio has in stock all the radio antenna mounts and parts you need from Diamond, Laird and other high-quality manufacturers that are ready to ship out the same day you place an order. HFpack helps operators to choose the right antennas. to make vertical. On 21 October 2001, a group of HFpack members met for a new type of antenna shootout at USA's west coast ham convention "Pacificon". This antenna just performs. The Comet CHA-250B is a newly designed broadband vertical requiring NO GROUND RADIALS. The antenna impedance matching components (BOX “Z” above) to match the antenna impedance to the coax line impedance (usually 50 ohms). Tests have shown that the CAROLINA WINDOM will out perform conventional antennas under similar conditions. My interest in radio operations away from the QTH began a search for a Portable HF Antenna.



Finally , the only snag I find with verticals in the UK is that they tend to pick up a lot of local noise on receive. Why I built my own Vertical Dipole. Prices & items subject to change without notice) Download our 32 page catalog! Diamond Antenna Product Catalog. When you see people trying to sell you a no-radial multi-band resonant vertical antenna, walk away. ANTENNA BASICS FOR BEGINNERS 160 m Vertical with thirty-two radials Comparison between 50 ft and 90 ft radials (Good Ground) Remember Hustler HF Mobile antennas?. For the surface tests I used 1⁄ 4 wave radials and varied the number from 4 to 64. The HF 3 wire broadband dipole antenna propagates NVIS, local, medium or long distance communications. Dual-Banding your 40m vertical for 15m. No Radials needed from 80-6M. QRP is an important aspect in HFpack for equipment and antennas. Bob is the host of the popular Ham Radio broadcast, Ham Nation as seen on Twit TV and has featured and demonstrated this phased array system on two separate episodes. The new ruggedized upgraded version of the MP1 SUPER ANTENNA, with TRIPOD, UNIVERSAL MOUNT, TITANIUM SUPER-WHIP, plus 80 METER COIL, and GO BAG. Experiment 1 - Vertical Attached to Ground Rod with No Radials. Any vertical wire antenna has to have a counterpoise. According to the ARRL Antenna Handbook, much of the single hop dx arrives at angles between 1 and 5 degrees. mRS mini Radio Solutions produce Pc based vector network antenna analyzer, Minivna pro, Minivna tiny, Extender, I/q rf generator, Antenna Analyzer, Vector.



A vertical HF antenna can get away with a height of only λ/4. 11m CB band Usable on lower and higher bands with reduced performance. The system consists of a very high frequency radio receiver, VHF vertical antenna, workstation, EMWIN software and interconnecting cables. Nick Henwood G3RWF Graphic Design - G8ODE 3 Mar 2009 iss 1. The following notes show the design and construction of a Broadband HF Vertical antenna which does not require a tuner, and which is capable of providing moderate performance on all bands from 7MHz to 28MHz (reduced performance from 3. A vertical HF antenna offers many advantages—an omnidirectional signal collector and easy to install radiator are two of the biggest. It consists of a vertical rectangular array of wire dipoles suspended in front of a flat reflector screen consisting of a vertical "curtain" of parallel wires, all supported between two metal towers. The antenna's length is not particularly critical provided it is longer than about 3/8 wavelength on the lowest operating frequency. 2 (below) shows the azimuthal (horizontal) and elevation (vertical) patterns for a typical half-wave horizontal dipole antenna mounted one-quarter wave above ground. If your HF rig has a built-in tuner, the useable frequency span approximately doubles without significant loss of antenna efficiency. Hustler 5BTV 5-Band HF Vertical Antenna. Alpha Antenna For. We mounted the review X80 vertical, from the Snowdonia Radio Company, on Wednesday evening 15 March 2011. The last series of compact 160 meter antennas were not that satisfactory. I was able to manually tune my original vertical antenna using it's inductor rings to a SWR of 1:1 and had a year to log it's performance which was great. com Quality antenna systems by Mosley Electronics. THE VERTICAL DIPOLE. S9 already had a fine reputation on their line of verticals, including the 43?, 31?, and 18? models. 60m/40m/30m/20m/17m Band vertical HF antenna. h = average height of radiator above ground, a = average radius of radiator, and G v = electrical height of radiator.



05 λ), preferably over "good" HF ground. 2017 Performs well on (30)-20-17-15-12-10m. WITH 250' OF 100% DACRON POLYESTER ROPE. HFpack helps operators to choose the right antennas. The most popular HF antenna for hams with trees to use as antenna supports is the dipole. com forums, and other local ham radio communities. COMPARISON OF PERFORMANCES OF DIFFERENT LEAKY FEEDERS IN A METRO TUNNEL. Best to have 2 antennas to compare signals! Devote at least a year to test antenna before giving up on an antenna. The center of the vertical Moxon is at the same height as the top of the vertical. The Beverage antenna—another vertically-polarized receiving antenna—has also been used in broadside arrays to provide similar. By Tech 833 For a long time, the Copper Forum Master and others, including myself, have wondered if there is really a performance advantage to all the giant coiled antennas parading up and down the highways. You have no items in your shopping cart. single penny on factory-made HF antennas. 89 db) is obtained at 59 degrees. Of providing moderate performance on all bands from 7MHz to 28MHz. HF Antennas Especially stealth models for those in an HOA Single band antenna when fed by coax Need to be mounted high enough that the ladder line is vertical. Tarheel Antennas, Inc.



Best to have 2 antennas to compare signals! Devote at least a year to test antenna before giving up on an antenna. Vertical Kayak Rack makes mounting a pair of kayaks on your dock a snap without sacrificing any dock surface area. This table will help me on choosing my next vertical antenna. Introducing the new Hy-Gain PATRIOT-PLUS AV-680 with a fully tunable 3. And, by comparison, it does suck. Low-cost home brew antennas for amateur radio. A DPDT relay, controlled by DC voltage on the feed line, is used to by pass the transformer when feeding one antenna. Simply rest your kayak on its side in the J-hooks and secure it with straps. Restraints Imposed by Location and Other Factors: I have a rather small suburban back yard, 100 feet wide (N-S) and 55 feet deep (E-W). Many of those original verticals are still in service after over 30 years of reliable operation. 4,000 Hz li Am --- Fig. DF Systems for Ships. P3 includes comparison with quad band end fed antenna and on air tests plus QSOs. This is the first of a series of videos on the Hustler 5BTV 5 band HF vertical. I hoped to find something that would work on with a 100 Watt HF transceiver on all bands from 80m through to 6m. The same antenna was used in both cases, a simple 1⁄ 4 wave vertical. analyze Yagis, quads, phased arrays, towers, loops -- nearly any type of antenna or parasitic structure. How Low-noise Receiving Antennas really work.



Experiment 1 - Vertical Attached to Ground Rod with No Radials. The efficiency of HFM-230 multi-wire broadband dipole antenna is much higher as compare to HF-2-30 folded dipole antenna. It is important to note that …. In comparison,. Accepts mast up to 53mm,Material: Hot-dip galvanized steel, stainless steel nuts and. Below a small description of an easy to make and cheap multiband wire vertical. EVALUATION OF QUARTER-WAVE VERTICAL MONOPOLE ANTENNAS several frequencies throughout the HF band. Vertical Bracket 5" Galv. For example, fig. 2) or apertures (treated in Section 3. You may also find other latest RF-1912 HF Fan Dipole Antenna selling and buying leads on weiku. Noisier than horizontal antennas Easier to hide in antenna restricted areas (can be. CQ Reviews: The CometCHA250B HF/VHF Vertical Antenna In February, Mick Stwertnik of NeG offered me the opportunity to lest the new Comet CHA250B HFN HF ver­ tical antenna (photo A). You will want to erect your antenna so that it. Any reuse or redistribution of the contents of this website are strictly forbidden without authorization from MFJ Enterprises, Inc. With the Eagle, as with all GAP antennas, you will not need to buy a tuner.



The #1 HF Portable Vertical Antenna worldwide. Linear Loaded Vertical Antenna for 40 and 80 meters by PA3HBB/G Ø BZF Four Square Vertical Phased Array -- From The Yankee Clipper Contest Club G5RV Multi-Band Antenna The G5RV antenna, with its special feeder arrangement, is a multiband centre-fed antenna capable of very efficient operation on all hf bands from 3. Brand and Model number: Solarcon A-99 Vertical Your first name: John Call Sign: KL7JR Type of equipment reveiwed- Be specific! Example Yaesu FT-107 Hf transceiver, Hustler 4btv vertical antenna: HF Vertical Antenna- Multi-band Your overall rating (5 is excellent, 1 is poor): 4. My question to Jim and others of you: what are the best vertical antennas?. The original DK-3 Screwdriver Antenna design was created by Don Johnson W6AAQ, author of a series of three books on "HF mobileering", and was first patented in 1991. The best situation is, if you don't have a tower and directional antennas, to have both vertical and horizontal antennas. This multiband vertical designs provide 9 band coverage encompassing the 6, 10, 12, 15, 17, 20, 30, 40 and 80 meter bands. MY BIG VERTICAL ANTENNA PROJECT This memorandum describes my Fall antenna project, specifically a DX-Engineering, Model DXE-MBVE-1, 43 foot mono pole vertical antenna. Some TIPS on measuring VSWR and troubleshooting M2 … Antenna Gain: dBi vs. At the lower end of the HF spectrum, the λ/2 height requirement for horizontal antennas can become cumbersome (even though horizontal phased arrays have a less stringent minimum height requirement). com For many amateur radio operators, a vertical antenna may be the only option they have to put up an HF antenna. The center of the vertical Moxon is at the same height as the top of the vertical. One final comparison of a 2 element inverted-V beam, a 2 element single radial vertical and and Inverted-V dipole. Basic Antenna Theory and Application AIR-ANT5195P-R Aironet 9. Comparison is not reason (I) After have shortly described the different antenna designs from longwire to yagi and dish, let's see whether a cubical quad or a delta loop performs better than a Yagi or if a log periodic shouldn't be the best solution ? Rightly, what are respectively advantages and drawbacks of these three designs, knowing that. HF wire antennas - a quick comparison table; Measure radio frequency with wood and wire - exper Homebrew antenna analysers; Triband end-fed antenna for portable use; Antennas for the 630m (472 kHz) band; Apartment HF antennas that work; Historical 1930s - 1970s antenna articles; The 50 ohm rectangular loop; Portable antennas for your VHF. My interest in radio operations away from the QTH began a search for a Portable HF Antenna. It is important to note that ….



Super wide bandwidth means more time operating ,and less time stuck on a frequency your trap vertical is tuned for. After a few talked he gave us an article about vertical antenna that he took from the internet. 8 to 30MHz, usable even with reduced efficiency, about 50 MHz. Add To Cart. A Heavy Duty, Self supporting vertical HF antenna for HF 43' long. We used an antenna analyser, and established the 80m SWR was 6 to 1, but all the other HF bands 40m to 10m were well under 2 to 1. This Multiband Delta Loop antenna, is based on M0PLK design but completely redesigned, has a unique configuration and feed solution resulting in low angle radiation, this making it a great performer on real DX. Even low to medium speed wind can be damaging to any antenna. HF verticals are versatile, and can deliver both multiband and monoband performance. A few months ago my friend 9W2 AYR(Anuar) and I visited my new friend 9M2LR (Mr. Knowing what the bands and meters are and how they work will help you choose the right antenna for your radio. This table will help me on choosing my next vertical antenna. Hustler 5BTV 5-Band HF Vertical Antenna. Every effort has been made to ensure the accuracy of the information in this product sheet. Notice the model includes the coaxial feed line and/or mast attached to the "grounded point" of the J-pole. Description of Colocated, Heterogeneous Receiving Antenna Arrays Used in the HF‐MIMO Experiments [6] This section provides a brief description of the design of two candidate heterogeneous receiving antenna arrays for HF‐MIMO applications. - Uses elevated radials for higher gain.



Furthermore, if the return. The graph does not compare the relative worth of each antenna. You can certainly ask everyone for an opinion and you will get a lot of answers, but always ask what can they compare their favorite antenna to that makes it stand out as a good performer. ) Therefore, I decided the bottom line was to select the antenna I thought could allow me to work the lower bands over the wintertime, which is, more of a priority to. Antenna Basics Introduction Antennas are a very important component of communication systems. He is available for antenna and installation consultation. The #1 HF Portable Vertical Antenna worldwide. EF-SWL End-Fed Dipole Antenna 1-30 MHz: Princeton: SkyWave End Fed Random Wire Antenna 0. All antennas were tested in both horizontal and vertically polarised orientations. The monopole antenna was invented in 1895 by radio pioneer Guglielmo Marconi; for this reason it is sometimes called the Marconi antenna. net is a Web site dedicated to ham radio (amateur radio). This multiband vertical designs provide 9 band coverage encompassing the 6, 10, 12, 15, 17, 20, 30, 40 and 80 meter bands. The center of the vertical Moxon is at the same height as the top of the vertical. ACE-HF PRO includes an antenna analysis program called HFANT that graphs the antenna's radiation pattern in two views. In such a case, a lot more separation would be needed. His perspectives and the responses to them have been very helpful and fascinating to read. Hf Vertical Antenna Comparison.