80m Vertical Antenna

Any multi-band antenna is a compromise, but if you ask me horizontally-polarized multi-band antennas are more of a compromise than commercially-made multi-band verticals; G5RV-style antennas typically work well on five or six bands, but have two bands that the antenna isn't designed for at all. The DX Vertical is our non-stealth HF vertical antenna. Continuous Loaded vertical antenna. The vertical wire is 61 feet and then horizontal for 64 feetwith another 51 feet of wire sloping down at 40 degrees from the end of the 64 foot length of wire for a total wire length of 176 ft. Big signal in a small package. Howdy, I'm looking for a design for an all-band (80m - 6m) vertical antenna design much like the Comet CHA250B. Drawbacks?…not as lightweight. ( the 40m vertical antenna was detuned by removing 1. It is inversely proportional to the frequency which means the wave with higher frequency will have shorter wavelength. Diamond® Antennas are sold through authorized dealers. Sure, you can build a fixed-tuned dipole or vertical type antenna with 50kHz of bandwidth on 80m, but if you always have to run outside with your antenna analyzer any time the antenna gets damp to re-tune it, you're going to go nuts. The antenna is fed with open wire half way the vertical part on the left (red circle). Antenna Overview. We are also currently working on designs for Vertical Antennas, so check back with us for updates. i spent the whole day to finish & tuned this antenna well. VA3VDP bought the commercial version of this antenna, made by LDG, and called the S9v31 and is advertised to be good for 6m through 40m. What exact ally was that 40/80m ended? PAR is a well known company and their end fed antennas are known to work well (most are a 1/2 wave end fed) but PAR does not make a dual 40/80m version. A - Either one of the ground plane antennas work best when mounted 7 to 10 feet off the ground. 6m vertical end fed with a 4:1 un-un (unbalanced-unbalanced transformer), so giving a reasonable match across a number of bands. AS-4SQ-20-Box - 20 m band Four-Square Vertical Antennas Phased Array Control System Without Push-Button Controller. On 40 m the SWR was very close to 1:1. Have fun experimenting with loop antennas!. Linear Loaded Vertical Antenna for 40 and 80 meters by PA3HBB/G Ø BZF; 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. 71 Clothesline Antenna. DX Engineering 80 Meter Full Size Quarter Wave Vertical Antennas feature:-- 5 kW SSB and CW rating—unparalleled reliability-- High power handling capacity--high strength, UV-protected EXTREN® insulators-- Ultra-wide SWR bandwidth and unbeaten gain-- Highest wind ratings—Up to 100 mph with proper rope guying. The larger the wire, the wider the bandwidth. TITAN-DX is an 8-band centre-fed HF vertical antenna with swr of <2:1 across ALL of the 10m, 12m, 15m, 17m, 20m, 30m and 40m bands. It is made with very high quality materials and the best in its class in the market in terms of mechanical construction and electrical performance. Imagine it as being the other half of a dipole. We carry the entire line of LDG vertical antennas. Multi-Hop Skip 40m Dipole. 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. HF antennas Multiband - Monoband - WARC - Vertical Antennas - Beverage Boxes Models for the pure contester (20m, 15m and 10m), and for DXing on the traditional and WARC bands (20m, 17m, 15m, 12m and 10m). It's up to the designer to select the best design for the job at hand and to utilize that design in the most efficient way. My 40 meter vertical cost me $13. The MFJ 259B antenna analyzer has been a big help with this. In this post you will find some detailes regarding our unique situation and some design thoughts. This can be a great feature when operating in emergency conditions, or when wanting to send a signal to multiple areas of the world. 128 - 5-Element Log-Periodic Vertical Antenna for 80m, 40m, 20m. At the end of the day, the LDG S9V is not rocket science. ) – Other (longwires. Sale ends 10/26/2019 at 11:59PM EST. Beam Antenna Chart & Index: Vertical Antenna Chart & Index: Diamond: A144-S5 Yagi Beam 2m: A502HB Yagi Beam 6m: F 22A Vertical 2m: F 23H Vertical 2m: V2000A Vertical 6m/2m/70cm: X 30A Vertical 2m/70cm: X 50A Vertical 2m/70cm: X 200A Vertical 2m/70cm: X 300A Vertical 2m/70cm: X 510HDM Vertical 2m/70cm: Elk Antennas: 2M/440LP5 Log Periodic 2m. 40m-10m DELTA LOOP ANTENNA – GU3WHN iss 1. 200 4s7b sri lanka 28. 80M Vertical Antenna with Capacitance Hat - Ham Radio Library Since the use of a full -wave vertical was out of the question because of space reasons, it was decided to use a smaller vertical, and load the top portion of the. The antenna I have now works very well on 80M. A vertical seemed the obvious answer, a naturally low-angle radiator. G7FEK LIMITED SPACE ANTENNA ( Nested Marconi Antenna). If you are finished with toys and would like a decent, high quality vertical built to last, you have come to the right place. On 40 m the SWR was very close to 1:1. To put this in perspective, an 80-meter full-sized vertical can be over 60 feet tall!. Because there are few Sunspots. I wondered whether the DX I couldn't hear was because none of my antennas had a low enough angle of radiation. The antenna is now available from DX Engineering. DX Engineering 80 Meter Full Size Quarter Wave Vertical Antennas feature:-- 5 kW SSB and CW rating—unparalleled reliability-- High power handling capacity--high strength, UV-protected EXTREN® insulators-- Ultra-wide SWR bandwidth and unbeaten gain-- Highest wind ratings—Up to 100 mph with proper rope guying. It utilizes an internal 9:1 UnUn and a BNC female antenna connector. Home Brew 80/40 Meter Vertical Antenna. 160-Meter Dipole Height N0GW - Gary Wescom - 1 Nov 2006 During the current lull in solar activity, operation on the 160 meter ham band has become more popular. The 43 foot vertical antenna is a popular height being promoted by several antenna manufacturers for 160 to 10 meters. 5 MHz to 144 MHz. A vertical HF antenna offers many advantages—an omnidirectional signal collector and easy to install radiator are two of the biggest. 80m Four Square. Zero-Five Vertical Antenna Setup at KC9FFV's QTH. Note, if the "linear" vertical is selected, the impedance is doubled. View from back of house showing Tenna Mast with all antennas. The quality of the ground is as important as it is for any other vertical antenna, meaning that vertically polarized loops close. The recommended deployment of the counterpoise wire. Resources listed under Vertical Antennas category belongs to Antennas main collection, and get reviewed and rated by. High voltage appears at the tips of the antenna and at the bottom of the ladder line. 6 thoughts on “ Ken’s low-profile, low-cost vertical antenna ” Don KPC6NDB September 6, 2015 at 8:24 am. 160m/80m Broadband Antenna by K5GP A presentation to CTDXCC September 22, 2008 The 160m/80m broadband antenna design objectives were to have: 160 and 80 m antennas since I had no antennas for these bands, the antennas had to be hidden because of covenant restrictions, open wire feeders would be too visible to be allowed,. I have also picked up a 2nd hand Capco 80m / 160m magnetic loop that I need to get collected and I will fit this on T&K brackets on the side of the shack, the loop is 12ft diameter. 800 MHz); and; Maximum height is 40 feet (limitation due to treeheight). Expect ham radio confidence with the DX Flagpole and it's Vertical Dipole cousins down to 80M! Q. I spent the pleasant sunny part of the final day of autumn testing a vertical antenna for 80 metres using Buddipole parts for home. Double Bazooka NVIS Antenna Calculator. I have a station at home where my antenna 'farm' is located on the lower roof of my house about 40' off the ground - not very radial-friendly. 3 MHz Vertical Antenna MA8040V is a compact self-supporting HF vertical that delivers excellent DX-hunting performance on 80 and 40 Meters. Shop F Antenna in stock here online. 80m Wideband Dipole Antenna Requirements. Most of this work was done as part of an investigation into the. 6 thoughts on " Ken's low-profile, low-cost vertical antenna " Don KPC6NDB September 6, 2015 at 8:24 am. That is to say the major lobe is between 75 and 90 degrees to the earth's surface. Howdy, I'm looking for a design for an all-band (80m - 6m) vertical antenna design much like the Comet CHA250B. ODE Test Set-up for the G7FEK Antenna # See note below ref RF earth system. Fortunately, antennas can also be configured vertically and in the process can show a significant improvement in the low-angle radiation needed for DX as compared to a low horizontally configured antenna. 80M Vertical @ side-mounted to Bertha. Antenna Parts Balun Designs - Baluns Bozak. My last antenna was a random wire up 60′ which I loved until it came down, and my yard is such that I really can’t put up a new one until February (when the leaves are gone). Antenna Configuration. My last vertical antenna experience relevant to the Hex Array came from the MFJ-1792 antenna. The K9LA 160m/80m Antenna Carl Luetzelschwab K9LA When my wife Vicky AE9YL and our two sons moved back North (from the Dallas/Ft Worth area) in late 1988 with a job change, one of the requisites of the house was for it to. I did daily tests for the 4 weeks while I was in Wales. Double Bazooka NVIS Antenna Calculator. In fact, some have warned against attempting the antenna due to the trap alone. 6m-80m with no tuner required. 3:1) on 80m and 40m, and below 3:1 on 20, 15 and 10m. For better understanding please see the pictures from the article on Croatian language on the next. What Rudy is saying is, a vertical without any radials will have virtually the same angle and pattern as one mounted over a perfect ground plane, albeit at a much reduced level. 73 Inverted Delta Loop for 160m. Now your yard space is limited how can you put down radials 1/4-1/2 wave lengths long at ground level and why dig up a nice yard to do it?. Because there are few Sunspots. Seeing this, I decided it was time that I do a little experimenting and build one for myself. Yagi and others Home Made Antennas-JA1KQX Taka's 3el. In this post you will find some detailes regarding our unique situation and some design thoughts. Any multi-band antenna is a compromise, but if you ask me horizontally-polarized multi-band antennas are more of a compromise than commercially-made multi-band verticals; G5RV-style antennas typically work well on five or six bands, but have two bands that the antenna isn't designed for at all. The Rockloop — compact antenna for 10. Vertical antennas are omnidirectional, meaning they receive signals from all directions. 55' Vertical Antenna For 40/80/160 Meters; 7 element Yagi for 20 Meters band; 80 Meters 2 Element Quad Antenna; 80M Vertical Antenna with Capacitance Hat; 80m Loop EZNEC Analysis; A $50 Beverage; A 160 meter antenna for small lot; A Novice Multiband Vertical Antenna; A Practical Antenna for 160 Metres; A multi-band super mini loop antenna; A. It has got a COMTEK phase box and 1/4wl seperation of the verticals. With my 6-element vertical array almost complete, and winter coming, I decided to replace the loops with an 80 meter inverted vee. Inverted L vs. Designed with corrosion-resistant aluminum tubing, this 32-foot tall antenna is very durable and attractive. The antenna vertical element is made from copper alloy brazing rod (from “Harbor Fright”) and the radials are 14 ga copper wire. In reflection, I'm very glad to have added the 160m operation as that is a fascinating band. Ideal for travel, backpacking, emergency, ARES/RACES, and SOTA operation. As a result, if the ground sucks, the antenna will also. TITAN-DX is an 8-band centre-fed HF vertical antenna with swr of <2:1 across ALL of the 10m, 12m, 15m, 17m, 20m, 30m and 40m bands. To date my favorite portable vertical loops are full or 3/4 WL (See note 4 and 5. 160M Vertical @ side-mounted to Bertha Custom options: 2nd level of rotation to allow 40M Yagi and 80M Dipole to beam a different azimuth than the lower Yagis (ex. The real practical advantage of the small loop, compared to a short vertical whip tuned against earth or a full sized vertical antenna, is the loop’s freedom from dependence on a ground plane and earth for achieving efficient operation; this unique characteristic has profound significance for portable or restricted space antennas. There are times, however, where a shortened vertical for the lower HF bands (such as 80/75 meters) is necessary where horizontal space is lacking. Not just on signal-to-noise but also on DX signal strength. This is a real flagpole multiband vertical. Wind from top to bottom, leaving straight wire at the bottom from the end of the coil to the end of the mast. It’s hard to explain the performance; but it’s partly due to a better signal to noise ratio on receive. Most of this work was done as part of an investigation into the. This time we want to errect a 2el vertical Array for 160m towards the US. 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. cy and bandwidth on 80m by shortening the vertical radiator and increasing loading while lowering radiation resist- ance. Antenna Overview. Trapped Inverted L Antenna for 160/80/40 Here's a simple antenna which will get you on the air on top band and 80m (40m as well at a pinch) in a small garden. 80M Vertical @ side-mounted to Bertha. FD4 Dipole Antenna 80m 40m 20m 10m. The coils have a ID of 4" inches. 800 MHz); and; Maximum height is 40 feet (limitation due to treeheight). 130 - Earth-Mover Inverted-V Antenna for 40m. 00; Description: 80 meter vertical antenna, adjustable from 60 to 66 feet. The other half is a "reflection" in the ground. 160m Inverted Delta Loop. There are TXing antennas: 4SQR/160m, 4SQR/80m cw-ssb, two fully rotating towers with HF antennas on, low inverted V/160m, vertical 160m The reception committee : Air view to remote QTH: 4SQR for 160m from 60m of the height (outer dipoles) 4SQR for 80m from 45m of the height (inner dipoles) Construction of the HF antennas system. It's going to be tough to effectively cover 80m through 10m with a single STL, but a pair of them could be made to work quite well, with one sized for the higher bands, and one sized for 80m and 40m. Note, if the "linear" vertical is selected, the impedance is doubled. The antenna also uses an RF choke 11 or 22 ft. Good idea? Ham Radio Antennas; How to build an Inverted L for the low-bands (40m, 80m and 160m). Below a small description of an easy to make and cheap multiband wire vertical. The "ARRL Antenna Compendium", Volumes One and Two, (now Three, Four and Five) are also interesting reading for antenna construction and modelling. The current main antenna on 80m and also the first real antenna put up at the QTH is the 4-SQ for 80m. This is a real flagpole multiband vertical. I referred to measurements I had previously made with 10m vertical antennas fed with 4:1 Ununs. 200 ja2igy mt asama, japan 28. 200 4x6tu tel aviv 28. 10m: We used two antennas on this band: 1) The main antenna was a two element full size vertical dipole parasitic array fixed at 10 degrees to cover Europe, USA, and Japan. This calculator will help you to calculate the different wavelength of antennas based on the frequency. Presenting F Antenna in stock and ready to ship today online!. 8Mhz, so a fair comparison was difficult, but using the tuner to bring the vertical up to 3. The simplest configuration is an inverted “V”, where the active element runs from the antenna connection of the tuner, up to a tree branch, and back down towards the ground. NEW Amateur Ham Radio Workman UVS-300 144 / 440 MHz Dual Band Base Antenna by Workman. 80m Vertical Mark I: Using a Low Band Coil, 4 x 22" Aluminium arms and the 5 section 32" shock cord whip with tuning on both ends fully extended, mounted on the Versa-Tee on a the Buddipole tripod and portable mast. A vertical HF antenna offers many advantages—an omnidirectional signal collector and easy to install radiator are two of the biggest. The vertical antenna looks to be the perfect low angle radiator, except for one thing the height of a 1/4 l at 80 metres is 20 metres, or 66 feet, which is not practical to construct, erect or, more importantly, keep erected. In fact, some have warned against attempting the antenna due to the trap alone. 8Mhz, so a fair comparison was difficult, but using the tuner to bring the vertical up to 3. This vertical is a good compromise when you want good performance on these two low ham bands and don't have the space to install two seperate antennas. This antenna started out as an 80m vertical - with160m capability added as a secondary consideration. The quarter-wave ground plane is essentially a single-band antenna. A tuner is needed on all other bands (except 20m). We feature an expansive assortment at competitive prices. Cushcraft achieved a major breakthrough in the development of an HF multiband vertical antenna that has been specifically designed for use with a tuner and amplifier. An elevated groundplane vertical can have as few as two or three radials and still be a more effective radiator than a horizontal antenna mounted at the same relative height. Analyzing my 80m vertical delta loop with MiniVNA I have a vertical delta loop for 80m. Both antennas (HF-6V, HF-9V) are only 7. Vertical antennas are omnidirectional, meaning they receive signals from all directions. 5 m aluminum tubing radiator. It can form a portable vertical or a mobile whip. Place a 1:1 Balun on the Antenna end of the Feedline. The Buddipole™ - HFportable dipole antenna system, Welcome to the home of the Buddipole™, an hf/vhf portable dipole antenna system which is designed to be modular, versatile, and efficient. They rely on return ground currents and use the ground as part of the antenna system. The antenna is now available from DX Engineering. Home • Products • Technical Info • Sample Photos. DX-88 25ft 10_12_15_17_20_30_40_80m HF Vertical Antenna 1. However, a quarter-wave vertical can also be used as a three-quarter wave vertical. For how to build information, construction details and material sources for this project, see my article: Building Dipole or Wire Antennas. 005 Siemens/ meter and relative. The following program will calculate the lengths needed to construct several popular wire antennas. With my 6-element vertical array almost complete, and winter coming, I decided to replace the loops with an 80 meter inverted vee. Two verticals, each is 68′ of 16-gauge aluminum fence wire. HF antennas Multiband - Monoband - WARC - Vertical Antennas - Beverage Boxes Models for the pure contester (20m, 15m and 10m), and for DXing on the traditional and WARC bands (20m, 17m, 15m, 12m and 10m). VERTICAL ANTENNAS K4TR 160 METER VERTICAL "T" ANTENNA (MADE TO ORDER) This Antenna Is Taken From A Time Proven Design. Wide bandwidth, with resonance at the 80M DX window (3. G7FEK LIMITED SPACE ANTENNA ( Nested Marconi Antenna). This antenna will cover 3. This is very short at AM broadcast band frequencies. AMATEUR RADIO ANTENNAS! Base station verticals installed in high wind speed areas must be guyed. 80M Vertical Antenna with Capacitance Hat - Ham Radio Library Since the use of a full -wave vertical was out of the question because of space reasons, it was decided to use a smaller vertical, and load the top portion of the. Building Block Vertical This dual-band vertical is the logical combination of our standard 80m vertical on an18m Spiderpole , with our 40m vertical on a 12m Spiderpole , except both wire verticals are supported by a single 18m Spiderpole. That is a lot shorter than a standard 1/4 λ vertical. 5 MHz to 144 MHz. ( the 40m vertical antenna was detuned by removing 1. Only operating 100W, but would like for it to operate up to 80m. The garden here at PZT Towers is 50ftx20ft so a full-length flat-top dipole/doublet to get me onto 7MHz was out of the question…. use that antenna to call. The DX Vertical is our non-stealth HF vertical antenna. 30 Amp Power Supply $99. VA3VDP bought the commercial version of this antenna, made by LDG, and called the S9v31 and is advertised to be good for 6m through 40m. Following the wise suggestions of Bob I1BAW I used VERTICAL POLARISATION feeding at the upper corners. Diamond ® Antennas are sold through authorized dealers. It is used for military and paramilitary communications, broadcasting, [1] especially in the tropics, and by radio amateurs for nearby contacts circumventing line-of-sight. 4GHz SMA Antenna High Gain Omni WiFi Antenna: 6. Let's see why and examine some advantages and pitfalls. Good idea? Ham Radio Antennas; How to build an Inverted L for the low-bands (40m, 80m and 160m). Super wide bandwidth means more time operating ,and less time stuck on a frequency your trap vertical is tuned for. To date my favorite portable vertical loops are full or 3/4 WL (See note 4 and 5. 40m Quarter Wave Vertical End Fed Antenna – G8ODE iss 1. of 50Ω coax cable. It is a manually tunable antenna. Also, worth noting is the pattern breaks up on 10M on the 43'er. Wide bandwidth, with resonance at the 80M DX window (3. Resonant at 3. Enter the desired frequency. I spent the pleasant sunny part of the final day of autumn testing a vertical antenna for 80 metres using Buddipole parts for home. INTRODUCTION. I have since found a drawing for a 40/80/160m trapped dipole. Assembled the PAC-12 is approximately 8. I did daily tests for the 4 weeks while I was in Wales. It’s a ground independent Receiving antenna which only needs two 10m support poles. I added 30m and 80m quarter waves - the 80m one makes an inverted-L. 40m-17m Foldable Mag Loop – PA0WIT iss 1. On 75-80m 1. With any vertical antenna system, the radials are the second half of the antenna. 800 MHz); and. The feedpoint of a full wave length (1 × λ) loop or cubical quad (QQ) has an characteristic impedance of approximately 115 Ω. Near Vertical Incidence Skywave (NVIS) Propagation Near Vertical Incidence Skywave Propagation is an effective form of HF communication for stations in a 100 – 300 mile range. Continuous Loaded vertical antenna. During the evening of March 17, 2010, I ran a comparative test with three of my short vertical antennas for 80m: 2. We really miss having the BigIR Vertical because it provided omnidirectional coverage on all of the HF bands from 80m - 6m and is a good DX antenna…. 5 - 30mHz This is a 200 Watt PEP step up transformer for end fed full and half wave antennas without radials, designed as a 200 Watt PEP upgrade by PA0EJH for the originaly Par Electronics designed 25 Watt HF endfedz multiband end fed antenna. The FCC restricts the total length of the antenna, feed line, and ground lead to 3 meters (118 inches). Shop F Antenna in stock here online. Tomorrow I'll configure an alternate feed method which will allow me to use the antenna as a top-loaded vertical on both 160 and 630 meters. T he vertical is a popular antenna among hams who lack the space for a beam or long wire antennas. By John Portune W6NBC. I next connected my trusty MFJ SWR analyser, and the battle commenced. Your latest requests have been for an antenna that's easy to setup, needs no radials, covers 10m-80m in addition to all the WARC bands and uses the same GAP technology found in our other products. That would be a really good antenna and would have wider SWR bandwidth than most other options. ¼ wave vertical antennas nearly always have losses that exceed a vertical dipole that is standing free and clear of the ground. I choose the Titan DX mainly based on the reviews on eHam. 7/800 144-164/380-520/696-870 MHz Antenna: 10M/CB Veh 27-30 MHz Antenna. MR6060 SuperWire Radial Set For HF Vertical Antennas 60m 5MHz Band Ham Radio MP1 See more like this Super Antenna Mr8075 Superwire Radial Set 80M-75Meter For Hf Vertical Antennas 3 Brand New. AS-2L- 80 - two vertical antennas array system for 160 m band. We must drill out screws that are seized due to overtightening! Don't apply glue to antennas! Heatshrinking ant. Add to cart here to purchase though Paypal. The 43 Foot Vertical Antenna. During the evening of March 17, 2010, I ran a comparative test with three of my short vertical antennas for 80m: 2. Factory pre-tuned to 3. high and covers 80m - 6m, the LDG S9v31 antenna is 31 ft. was carried out on 80m as this band was the real challenge for a small garden. TITAN-DX is an 8-band centre-fed HF vertical antenna with swr of <2:1 across ALL of the 10m, 12m, 15m, 17m, 20m, 30m and 40m bands. The trap is placed at approximately the 31. dipole, depending on how much extra length (with the 80m traps) I need to add to get it to resonate on 160m. This antenna is described on this page. HF Antennas for Small Gardens Generally also need to be unobtrusive - but not necessarily 'stealth' Most good solutions are wire types Most good solutions involve some compromise* Beams don't usually feature! Usually need to be multi-band *not just technically but also with the xyl!. antennas that are tunable to operate over segments of the entire 75/80 meter band with an SWR of 1. It was also superior on 80m as a DX receive antenna. Cushcraft achieved a major breakthrough in the development of an HF multiband vertical antenna that has been specifically designed for use with a tuner and amplifier. Sale ends 10/26/2019 at 11:59PM EST. then i rebuilt & rebuilt again until i find the actual diagram. 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. Short vertical dipole. My first thought was to make an inverted L for 80m, but the far end would extend off my property and would increase visibility of the antenna, particularly in the winter when there are fewer leaves for cover. That is, the pattern has one null, or notch. Buddipole vertical for 80m I spent the pleasant sunny part of the final day of autumn testing a vertical antenna for 80 metres using Buddipole parts for home. The vertical element has no traps, or coils. This antenna is an excellent performer, and ruggedly built. The Buddipole™ - HFportable dipole antenna system, Welcome to the home of the Buddipole™, an hf/vhf portable dipole antenna system which is designed to be modular, versatile, and efficient. Both antennas (HF-6V, HF-9V) are only 7. Now your yard space is limited how can you put down radials 1/4-1/2 wave lengths long at ground level and why dig up a nice yard to do it?. high and covers 80m – 6m, the LDG S9v31 antenna is 31 ft. 80m overall length - 134' or 67' per side. HF Antennas for Small Gardens Generally also need to be unobtrusive - but not necessarily 'stealth' Most good solutions are wire types Most good solutions involve some compromise* Beams don't usually feature! Usually need to be multi-band *not just technically but also with the xyl!. In reflection, I'm very glad to have added the 160m operation as that is a fascinating band. 8, I still noticed that the vertical did at least as well on short hops and a bit better on longer hauls (as you may expect). The RadioWavz DX (OCF) Windom is ideal for those of you who do not use a tower and beam. Quick SWR Calculator for Vertical and Dipole Ham Radio Antennas; TOKYO HY-POWER HL-700B 600 Watt Amplifier purchase; Adding 80m to DX Commander All Band Vertical (9-bands 80m through 6m) DX Commander Contest Antenna achieves top placed UK IOTA Station; Software Modelling your Vertical antenna ground radials with MMANA. The vertical wire is 61 feet and then horizontal for 64 feetwith another 51 feet of wire sloping down at 40 degrees from the end of the 64 foot length of wire for a total wire length of 176 ft. To put this in perspective, an 80-meter full-sized vertical can be over 60 feet tall!. A - You can paint your vertical antenna after it is assembled, do not paint the base section with the transformer or insulator. Swr is <2:1 across 100kHz of 80m band. The Wire Size can range from 16 AWG to 12 AWG. HF verticals are versatile, and can deliver both multiband and monoband performance. All information, images, and documents on this website are the sole property of MFJ Enterprises, Inc. small foot print low profile QRO loops. 6 - Vertical pattern 160m and 80m Due to the horizontal part of the inverted L the antenna has also some high angle radiation component which is good for short distance QSOs and contest operation. The antenna is now available from DX Engineering. Features Full band coverage for 80 and 40 meters Height is 32 feet Weight is only 13 pounds. This is because a vertical antenna is often the best choice for a small garden. That antenna works as a loaded vertical on 80m, with associated coil loss, narrower bandwidth and lower radiation resistance (= increased losses), plus a slightly contracted standing wave due to the coil (shorter effective length). It is always a good idea to feed Vertical and Inverted-L antennas through a Common Mode Current Choke. In an electrical sense, a vertical is a dipole with half of its length buried in the ground or "mirrored" in its counterpoise system. I hoped to find something that would work on with a 100 Watt HF transceiver on all bands from 80m through to 6m. 53 foot ground radials Five eights wave Vertical is: 169. Just simple, effective and proven antennas. If you have sufficient height in the attic, and enough space to allow siting away from metal or pipework, then one of the portable vertical antennas such as the TransWorld Adventurer can give good results. Output of the second harmonic mixer goes to a bipolar audio preamp and then to a LM386 audio output IC. 3 over the majority of the 40m band. 80/75 Meter Wire Antennas. Modelling results In January 2008, L. My first antenna experiment in ZL was simply to add additional wires in parallel to the existing 40m quarter wave vertical, using the same coax feed and ground plane. - A standard / remote tuner at the feedpoint will ease construction and allow operation from 3. My pole supports the wire close to the trap. DX Engineering Hustler 5BTV Vertical Antenna I have spent the last 3 weeks installing a ground radial system for my DX Engineering Hustler 5BTV 80M-10M (3. 54 £ | 12DBi 2. Swr is <2:1 across 100kHz of 80m band. IAC Antennas featured on Ham Nation! IAC Antennas worked with Bob Heil, K9EID, to help him set up an IAC Phased Array at his new QTH. propagation at low latitudes, it came out that the best antenna for my future QTH near Quito, Ecuador should be two:. ground plane antenna with radials. All information, images, and documents on this website are the sole property of MFJ Enterprises, Inc. Output of the second harmonic mixer goes to a bipolar audio preamp and then to a LM386 audio output IC. My space is very limited, and in particular (due to the need to rotate my existing dipole), there is no way to put up a vertical more than about 3m high, and no room for radials longer than a few meters. A well constructed tuned vertical antenna is a must for getting maximum range from your Part 15 AM transmitter. I referred to measurements I had previously made with 10m vertical antennas fed with 4:1 Ununs. In the summer of 2010, I decided to construct a 1/4 wave 80 meter vertical using 3" OD Aluminum Tubing. Larry's Antennas LLC The CTR6-160 Auto Controller will work with any screwdriver antenna with or without counter switch/magnet switch. The antenna length should be about a half wavelength at the lowest frequency of interest for best results. They're ground-independent, half-wave vertical antennas so there are no radials or RF-ground ever needed! MFJ-2286. It’s now on it’s second version (v2), with a conversion from a trap-based to relay-based band selection and full matching net now complete. Another vendor says to ADD 150 feet of RG-213 to your cable run. Resources listed under Vertical Antennas category belongs to Antennas main collection, and get reviewed and rated by. That antenna works as a loaded vertical on 80m, with associated coil loss, narrower bandwidth and lower radiation resistance (= increased losses), plus a slightly contracted standing wave due to the coil (shorter effective length). Other antenna designs which I've found on the the net are providing various ideas on 80m verticals. The third antenna will probably be a multiband version of these antennas (or yagi). Locally customize as required, you won’t need to bring ALL this stuff if you’ve done a little pre-planning. The Buddipole Low Band Vertical configuration utilizes the Low Band (large) coil, with one or more twenty-two inch arms above the coil and a telescopic whip (preferably the long version) on top. Only 27 feet tall and weighing in at less than nine pounds, it is small and light enough for one person to handle easily without assistance. Sure enough, many approaches, both old and new, exist to help an 80 or 75m dipole present a decent SWR across the entire 80m band. uk My own experiments over the years have shown that the G7FEK (and other similar vertical antennas) can equal and are sometimes better than a full size dipole for DX for medium to long skip contacts. MR6060 SuperWire Radial Set For HF Vertical Antennas 60m 5MHz Band Ham Radio MP1 See more like this Super Antenna Mr8075 Superwire Radial Set 80M-75Meter For Hf Vertical Antennas 3 Brand New. 6m-80m with no tuner required. Now this antenna is good enough for. Verticals are commonly installed at ground level, although you can also place a vertical on the roof of a. 94 - Laid-Back Quad Antenna. On 20m it is a 1/2wave, On 17-10m it starts to act as a long wire antenna and performance suffers. Home-Base HF Vertical Antenna. Home Brew 80/40 Meter Vertical Antenna.