Balun for carolina windom antenna. If you are going to use a OCF antenna .
Balun for carolina windom antenna. Homemade 'Carolina Windom' antenna.
Balun for carolina windom antenna Unlike the usual designs for these, he is using half inch ferrite rod as the core which seemed quite easy to make. It needs no tuner on 40m, 20m and 10m. before erecting this antenna i was careful to seal the edges of the balun and line isolator deeply with the waterproof glue product provided by the mfr and did also edge the balun and line isolator Windom Antennas. The Carolina Windom uses a ratio of 37. T. The 22 feet portion of the feedline effectively becomes an upside downvertical, located high above ground and free of ground losses normally associated with See more Windom uses a 4:1 voltage balun, which matches the antenna's leg voltages and then uses a separate 1:1 choke balun to isolate the feed line from the vertical radiator. 50Ω - 200Ω, 1-30MHz. For the 4:1 balun he uses 17 bifilar turns on a half inch ferrite [] From an electrical standpoint the best way is to hang the center at the apex. Soil is mostly rock, with a thin covering of sandy soil. The problem was I originally reduced the size because I didn’t have the length of land The New Carolina Windom is essentially an off-center-fed (OCF) dipole. 25 ft. This is a 4: 1 balun made of speaker wires: Homemade Carolina Windom antenna It needs no tuner on 40m, 20m and 10m. Die FD4-Antenne, auch bekannt als Windom-Antenne, ist eine beliebte Multibanddrahtantenne. Homemade 'Carolina Windom' antenna Here is my home HF antenna. NONESENSE! The classical feedpoint of the windom will give you the best SWR curves for a few of the bands, but if you are willing to accept a slightly higher SWR, it is possible to cover additional bands. The coax fed "Carolina Windom" OCFD types are usually tapped around the 200 ohm point where a 4:1 transformer is appropriate. Build a Better Windom Un antenna filare per le bande dei 160/80/40/20/10. The shorter wire is 44 feet long and is supported at the apex height of 25 feet by a birch tree in the front yard. It is a half-wave long on the lowest frequency, and is fed from a coax cable through a transformer inserted in the wire at one-third from one end. Since this balun (or choke) 70MHz Quarter Wave Ground Plane Antenna; 144MHz 2m Portable Yagi VHF Beam Antenna; Magnetic Loop Antennas; Homemade Carolina Windom antenna; Homemade 20 metre band loft dipole! Baluns and UnUns. I first bought a Radio Works Carolina Windom 40m. This one comes with a stranded steel wire of about 1. The antenna consists of asymmetrical horizontal radiating elements being driven at the off-center feedpoint through a Balun into a 50 Ohm coaxial cable of a pre-determined length. 9(feet(round(to(66(feet)(for(total(half(wave(length. The CB-4-1500ODCV is a CUBE™ enclosure containing a dual core, bifilar wound, voltage balun to force equal voltages on the unequal sides of the off center fed antenna and force current down to the vertical radiator so it acts like a vertical antenna adding to the radiation The document discusses the history and design of the Windom antenna, an early multi-band antenna design. Homemade Ant . End Fed Half Wave Antenna Coupler (EFHW) 1:1 Voltage Balun for HF wire dipoles; 9:1 Magnetic Longwire Balun / Unun; Simple CW Touch Keyer Circuits AG6IF Talented Balun and Loop antenna: 16: 2019-03-14: $81 (4. They are much more effective antenna tuner baluns than standard bead or air-core baluns. It was a 40 meter Carolina windom. Some Windom-derived antennas enhance feeder radiation on purpose. También llamado "OCF", Off Center Fed. From an electrical standpoint the best way is to hang the center at the apex. Listed under the Antennas/Windom category that is about Windom antenna. The differences between this antenna and Windom’s is that the Original Windom is not a dipole. variation of the single wire-fed Windom antenna. If the antenna is really high, perhaps a 6:1 balun would be better. Stainless eyebolt is inserted into Tenyte "Center Insulator" The "Center Insulator" is used to suspend the center of a Dipole, Windom, or other wire type antenna from tower, tree, or other support structure. The document describes how to build a DIY Carolina Windom antenna for multi-band operation. Loren G. The original OCF Windom built by K5IJB used 12% offset and 68-foot coax feedline with a 4:1 balun. It requires a 4:1 voltage balun to match the legs and a separate 1:1 choke balun to isolate the feedline. Going to Carolina in your mind? outer shield of the vertical coax radiates to fill in the gaps in the signal pattern radiated by the top portion of the antenna. If you are going to use a OCF antenna Carolina Windom. 1mhz=65. The ‘Dedicated Matching Unit’ is used to match the transmission line (coax feed line) to the antenna is a special design that enhances transmission This antenna is my first attempt at an HF setup after building several successful VHF antennas. 73 KX7D Reply reply More replies. It describes how the original Windom used an open-wire feedline that functioned as a radiator. Here is my home HF antenna. tional Carolina Windom since it was the first attempt at creating this specific type of multi-band antenna based loosely on Windom’s original concept. The DX'pedition team The apex of the antenna is hung from the peak of my roof. Windom and Carolina Windom Antennas Windom antennas are basically Off-Center-Fed Dipole (OCFD) unlike the half-wave dipole which is center fed. By Hubert Scholle, DJ7SH, and Rolf Steins, from one end and fed it with 50-ohm coax through a 6:1 balun. You might if you get problems with the Windom change the feeder from coax and the balun to 450 ohm ladder line into the tuner if it can take ladder line. The CW-80 RadioWorks Carolina Windom 80, The size of this antenna makes it ideal for many gardens and its DX potential will ad at least an S-point to your signal on most occasions. I have an old Carolina Windom (10m-40m) that I resurrected in Februaru 2018 after my 10+ years QRT. Windom, W8GZ in QST. Conventional or True Windom Antennas. 8% for the short horizontal element and a ratio of 62. A current balun is the proper choice Though the Original Windom antenna was a single wire feed, the Carolina Windom is coax fed and an improvement on the OCFD design with slightly different feed point, and a "recommended" current balun to assist in better Common Mode Current in OCFD Antennas: In the summer of 2013, I conducted a field test of Common Mode Current on 40m OCFD antennas (see: CMC Test), with the goal of understanding how CMC affects the antenna, how lengths of In the Carolina Windom, the current in each of the wire radiator sections is out of balance. Prior negative comments indicate the writers had not prepared the seals to the center balun and the coax line isolator units securely or as directed by the company instructions. His call is now reissued. The big difference is in the balun that you use to feed the antenna. Janusza VE3ABX a tym się tylko różni od tego co jest popularnie znane jako "dipole antenna" Balun jaki chcesz zainstalować w swojej antenie jest w istocie szerokopasmowym transformatorem z użyciem rdzenia ferrytowego. Found the upper one was a 4:1 to 1 balun. If you are going to use a OCF antenna Antennas. the windom is an off center wire multiband antenna the old version was fed just by a single wire connected on 1 3 of antenna s overall length or with an open line feeder later versions here is another model with coaxial feeder which is compatible with solid states 50 ohm output transceivers . That is, one side is generally longer M0UKD gives detailed instructions for construction of the Carolina Windom antenna including the needed line isolator and 4:1 balun. For one, the 4:1 Balun has been moved to the antenna radiator and is built into the center insulator. Tuner 4:1 Balun 10 ft RG-58 Line Isolator. The principle of a New Carolina Windom antenna utilizes the unique length of the coax section to not only produce the required impedance transformation for taming The document describes the development and design of the New Carolina Windom antenna. ANTENNA INSULATORS. Hi, This is the classic Windom, a multi-band HF wire antenna first described in 1929 by Loren G. Also called "OCF", Off Center Fed dipole. 2% for the longest horizontal element. One example is the Carolina Windom (USA) which provides both, horizontally and vertically polarised radiation. With an eventually extra choke balun the 3 – 4-m coax used for the balun becomes a part of the recommended 27. Fritzel used the shown dimensions of 13. The Radio Works Carolina Windom 80 Special it's a superb antenna, especially for long haul. I have fitted the 10 foot stub The document describes how to build a DIY Carolina Windom antenna for multi-band operation. 12 meters may also work on the 4-Band 300 watt model. Does the carolina windom run th same direction as the long wire antenna? 160-10 meter version of RadioWorks Carolina Windom antenna. It had 15 turns around a 3/8 ferrite rod. It requires a 4:1 voltage balun to M0UKD gives detailed instructions for construction of the Carolina Windom antenna including the needed line isolator and 4:1 balun. The antenna worked with your balun wonderfully. End Fed Half Wave Antenna Coupler (EFHW) 1:1 Voltage Balun for HF wire dipoles; 9:1 Magnetic Longwire Balun / Unun; Simple CW Touch Keyer Pincha en OCF Dipole Antennas y la verás con los rivales de CAROLINA WINDOM 160 son pocos, si es tenga mas ruido que un dipolo ,solo hay que alimentarla correctamente como los esquemas que ha puesto Carlos EC1T,la windom lleva un balun de tension con lo que la bajada radia por ello hay que poner seguido del balun un The feed is not connected to either main element since a balun is used to drive the dipole. So, the 22-foot section of RG8X between the 4:1 voltage balun at the feed point and the 1:1 choke 22 feet down, radiates and fills in nulls. 1) Radio Works Carolina Beam 80 Special: 7: 2012-06-09: 125 antennas, towers, test equipment, feedlines, Antena Carolina Windom. Figure 2 is the electrical equivalent of the Tradi-tional Carolina Windom. and had very good results. 7-m in the Carolina Windom Antenna; Caution – DDA at Work! STARC; Coil Sealing, At Home; Coil Winding – When you Can’t Buy One; Obviously, the unbalanced coaxial feed can’t be properly matched to the antenna by the balun as the antenna is itself unbalanced. 50Ω - 200Ω, 1-30MHz. Antenna Calculator. Here is the 4:1 balun. 1mhzas(lowestfrequency(of(operaon(we(use:(• 468(/(7. Moist I have a full size G5RV flat topped in the garden, but hav been looking at the Carolina Windom antenna's as i want to get away from using ladderline. Design Software. BALUN / UNUN 9/1: Antenne Beverage Antenne W3HH Antenne long fil horizontal ou vertical (attention à ne pas confondre dans ce dernier cas avec l’antenne ground plane ou antenne quart d’onde au sol dont les impédances sont très différentes) Review Summary For : Radio Works Carolina Windom 160; Reviews: 25 MSRP: 135; Description: Asymmetrical horizontal wire antenna for 1. As the antenna covers all bands it can be used as the main system and it First, if you transmit high power (=>1kW) in to a resonant antenna like an OCFD but need to erect your antenna with a leg over or near your house, barn, garage, metal building/roof or other structure, When building or replacing the balun at the feedpoint of a Carolina Windom that incorporates a vertical coaxial radiator, The DX'pedition team also had a beam and verticals, but the New Carolina Windom was the antenna they used. Most people still believe a Windom MUST be fed at the 1/3 - 2/3 point. The secret is in the vertical section which offers excellent low angle radiation. Quick service. 99 Order CIA Center Insulator and two end insulators > 3. Keeps RF off the Coax below this point / (part of)/ That may all be true if the antenna is strung out horizontally. BUX Model 806136 is SSB power rated at 1000 watts and includes three (3) insulators, PVC covered, Power-Flex, tinned, copper wire, connectors, and BALUN. Take for example the so-called Carolina Windom. Windom Antennas. I bought a medium size amplifier (single 3-500z) and next thing I knew, the balun was fried. Center Insulator with Suspend Eyebolt. 9) AIR BOSS pneumatic antenna launcher: 53: 2024-06-07: Radio Works Carolina Windom 80: 91: 2024-02-17: 89. I’m about 25′-30′ up and in the clear. Since erecting this antenna in Dec 2009, I have been surprised by several people who have rubbished the This antenna is based on the latest design enhancements of the Carolina Windom which is rapidly becoming the workhorse wire antenna of DXpeditions around the world and for good reason. Review Summary For : Buxcomm Windom 80-6 meters; Reviews: 26 MSRP: 60-70; Description: This WINDOM is completely assembled, ready to connect your coax, and erect. In this case, the balun is merely used as an isolation device. The coax attaches to a 4:1 current balun with the positive side of the balun feeding the longer wire. Len Carlson, K4IWL Smithe Windom Six Band HF Windom antenna HF Windom antenna , Wilkinson splitter for RX measurements, Windom baluns For most people, a 4:1 balun is going to provide a better match than a 6:1 balun. They are broad band antennas to some extent. If it is Acabo de realizar una sencilla hoja de Excel para realizar una Carolina Windom OCF optimizada con su tercer radiante vertical de forma que ustedes puedan calcular de forma muy sencilla su antena ingresando unicamente la frecuencia de la banda BASE (la banda mas BAJA) que deseen operar y la hoja de calculo hace el trabajo de calcular las medidas de los The New Carolina Windom uses a horizontal, the balun and choke. Such tricks are employed with “Carolina Windom” antennas. Brands Ni4L; Ni4L Antennas Takes advantage of both dipole and vertical antennas Time Owned: 0 to 3 months. The antennas were not abused but could not handle 2/3 legal limit. Una valida antenna filare che copre le gamme dei 160, 80, 40, 20 e 10 metri è senz’altro l’antenna Windom. The basic antenna of this length was installed horizontally as a reclining L at Review Summary For : Radio Works Carolina Windom 160; Reviews: 25 MSRP: 135; Description: Asymmetrical horizontal wire antenna for 1. Other types of antennae There are some types of antennas that seem to defy simple definitions. Just be sure you waterproof the balun and line isolator well before you put it up. A long time ago I bought a Radio Works Carolina Windom 80 Special from an amateur who had been So under orders I removed the Windom and a few other antennas and instead constructed my first cobweb as a single replacement. A Double Windom Antenna for Eight or Nine Bands. In un mio precedente articolo sulle antenne End-Fed, abbiamo imparato a conoscere le correnti di modo comune ed a valutarne gli effetti sul nostro “sistema d’antenna”. antenna: 300 ft (approx) height at ends 16 ft, but about 20 ft lower at far end due to ground slope. Mine has been through two near misses by hurricanes Having trauled through the many reviews of various Windom antenna manufacturers I eventually opted for the Carolina Windom – Construction details for a 20m (66ft) off centre fed ‘Carolina Windom’ multiband antenna. My first HF antenna! Baluns, UnUns and Impedance Matching A couple of years ago I had played about with my old Carolina Windom 80 special by reducing its size to the 40 Windom, but I soon realised when testing that the balun was individually set for a Carolina 80 special and so I had to revert back to its original size to make it work. Very pleased. The balun is in the middle, and yes requires support. 20m Loft Dipole – A crude shortened monoband dipole that fits in the average loft. HF Military. The 1:1 current balun and its attachment tend to be a weak spot in all the other offerings of this antenna we’ve examined. It also works fine on all bands above 40m with a tuner, and even below 40m on 60m, and 80m: La Windom di Un'antenna probabilmente non molto facile da istallare nei tranquilli palazzi condominiali di ogni citta' , causa il fatto And another nice benefit of the vertical radiator is it shortens the overall length of the antenna. L' antenna, quindi, consiste in una filare multibanda lunga mezza lunghezza d'onda della frequenza più bassa, come un normale dipolo; l'unica differenza sta nel fatto che mentre il dipolo è alimentato al centro senza niente di interposto, o al massimo con un balun 1:1, e funziona solo sulla fondamentale e sulle armoniche dispari, nella Windom il cavo di discesa è collegato a 1959: Ladderline replaced with coax and an ugly balun by (Buck) Rogers, K4ABT 1970: Coax plus transformer and balun by Kurt Fritzel (DJ2XH) and Fritz Spillner (DJ2KY) 1980s: Carolina Windom (uses the coax as a radiating part of the antenna, with the Whereas a Dipole is a half-wavelength long radiator, fed in the Center of two equal length legs of the antenna, the Off-Center-Fed Dipole (which I sometimes 'falsely' call a WINDOM) is a Dipole whose feedpoint is at a point removed from the center of the antenna - but not at its end. End Fed Half Wave Antenna Coupler (EFHW) 1:1 Voltage Balun for HF wire dipoles; 9:1 Magnetic Longwire Balun / Unun; Simple CW Touch Keyer Review Summary For : Radio Works Carolina Windom 160; Reviews: 25 MSRP: 135; Description: Asymmetrical horizontal wire antenna for 1. In diesem Bericht werden wir die technischen Merkmale, den Aufbau, die Installation, die Leistung und die Anwendungsbereiche der Windom-Antenne behandeln. Therefore, the 6:1 balun will likely be transforming impedances lower than 300 ohms Carolina Windom. balun ground is to tower. Between the antenna and the line isolator was 25 feet - not 10 feet. Shortly after Hurricane Helene caused structural damage, flooding, and power outages in North Carolina, I ordered my preferred NVIS antenna (OCF 8 Bands 160-6 HF Windom Antenna Flex-Weave) from Chris at Ni4L in preparation for La Antena Windom - modelo Carolina- es una antena windom a la que se le ha añadido un un radiador vertical. and with the dielectric constant of the ground below the antenna. A 1:1 choke balun at the bottom of the 22-foot radiating I did some research and remembered that awhile back I had received an antenna from a fellow ham that had been struck by lightning. It evolved from Loren Windom's original 1929 design for an off-center fed dipole antenna. A Carolina Windom is a type of off-center fed dipole antenna that uses part of the feedline as a vertical radiator. Antenna Carolina Windom . The modern Windom is improved For one, the 4:1 Balun has been moved to the antenna radiator and is built into the center insulator. by i3rke Premessa. Started by taking the 2 baluns apart to see what they were made of. The New Carolina Windom uses a 4:1 balun built into the center insulator and a 10 foot vertical coax radiator to provide both horizontal and vertical radiation components. Quest’antenna è molto simile ad un dipolo, l’unica differenza è che l’alimentazione dei due bracci non è al centro bensì spostata al 36% della lunghezza; quindi i bracci non sono simmetrici ma uno è più lungo l’altro Carolina Windom Antenna Minggu, 14 Februari 2010. A typical 80 meter wire is 133 feet long, Google “New Carolina Windom” antennas. The Windom got put away and I used the wire for other antenna projects, the balun and choke which remained attached got monopole and trapped vertical antennas or single wire vertically erected antennas such as the inverted “L” and others. The New Carolina Windom is, a Half Wave length antenna at it's total length and can be used on other harmonically related bands without a tuner. The Carolina [] The feedpoint balun was a 4:1 voltage balun which, per the Antenna Book, does not act like a current choke. 99 Order CIAX3 Pics and info about my Homemade Carolina Windom HF Antenna. The Windom dipole is an off-center fed dipole. HF Vertical. New Carolina windom antenna PDF file by QRP Expressions by By N. Its difficult to test the balun or transformer with an ohmmeter and I think the best way to test them is with an antenna analyzer on the 50 ohm side and put a non inductive resistor across the antenna wire terminals. I built this to specifications, with a prebuilt 4:1 balun, but even with the tuner I can’t get the SWR below 5:1 on 20m and it’s even worse on 40m. It is effective on 40, 20, The New Carolina Windom HF antenna uses a horizontal, OCF element and with balun / choke spacing, will radiate on the vertical feed line space between, the balun and choke. Choke UNUNs. Choke UNUNs DX Engineering FCC050-HO5-A 160 to 6 meters, 2kW CW/5kW SSB “Ugly” Choke UNUNs Usually 15 to 22 feet of RG-8 coax wound on a form 4 to 6 inches in diameter. The New Carolina Windom - Len Carlson - K4IWL 8 Our 4-Band antennas cover 40, 20, 10, and 6 meters, with no tuner required. La antena se alimenta con un balun relación 1:4, siendo la línea coaxial de alimentación simultáneamente un radiador vertical (cable coaxial de 50 ohmios), además de línea de transmisión. Homemade 'Carolina Windom' antenna. That is where the current is at a maximum on the lowest resonant frequency. Loren lived in Reynoldsburg, Ohio. The picture above on the left shows the classical Dipole, which is usually fed with 50 Ohm coax, FORMULA(40M(• Using((7. Windom's original idea was off-center feeding a horizontal antenna to present a feedpoint impedance of 600 ohms. Multi-band HF Antennas Part 3– VA3TPV THE OCF FD4 (FD3) WINDOM ANTENNA. The author provides instructions on cutting the wire, attaching baluns, ANTENNA INSULATORS. 6:1 balun. Antennas. However, it is an easy matter to connect the vertical feed line to one side or the other and add a choke somewhere on the feed to get yet more interesting resonances. 8 through 30 MHz. But short-haul contacts will be boosted. Unlike the usual designs for these, he is using The New Carolina Windom uses a 4:1 balun built into the center insulator and a 10 foot vertical coax radiator to provide both horizontal and vertical radiation components. The remaining 43 feet was used between the line isolator and radio. FD4 (80/40/20/10 m) The 4-band Fritzel model FD4 is a special version of a Windom antenna. If you are going to use a OCF antenna W2AU is the preferred Balun of Amateurs worldwide. 2-m length (fig»). The True or Conventional Windom antenna, shown below, is fed with a single-wire line, and fed as an unbalanced system against a reasonable RF ground or counterpoise. Baluns: Dove usarli, quando usarli e come funzionano. 99 Order CIAX3 Antenas Windom para onda corta, con balun 1:6 y aisladores, 200 o 1000 W. By letting it do so, the outer shield of the 22 feet long verticalcoax (RG-8X) radiates to fill in the gaps in the signal pattern radiated by the top portion of the antenna. . I replaced it with a 4:1 Balun of Jerry Sevick W2fmi design and the CW 40 has worked like a champ ever since. It is an off centre fed dipole, with 10 feet of vertical radiator. The Sloper. Product is in production this diy vertical multi band windom antenna offers a practical and effective solution for amateur radio enthusiasts seeking a versatile and compact antenna for hf communications its simplicity of construction multi band capability and favorable performance make it a valuable addition to any radio shack the article provides detailed instructions on constructing the antenna and balun The key to obtaining more bands from any Windom (or OCF) is the positioning of the feedpoint. 19 may 2011. The long end of the antenna is 89 feet long and runs into the back yard. 95 (4. 5 mm thick protected with PVC, 2 insulators and a 6:1 balun for matching impedances. The original windom antenna was fed 14% off center with a single wire, which would radiate up to the operating position, which is quite undesirable. Loren was originally 8ZO from Columbus, Ohio in 1922. It is 17 bifilar turns on a half inch ferrite rod. A current balun is the proper choice for an OCF dipole, since it effectively chokes common-mode current from standing on the feedline. In questo scritto cercheremo quello dell’ antenna OCF chiamata Carolina Windom. It is effective on 40, 20, 15, and 10 meters without a tuner, and At 33 ft, on 40 M the antenna is only 1/4 wavelength high, and although some RF has low angle takeoff most is still higher than 45 degrees. It is an off centre fed dipole, with 10 Here is the 4:1 balun. 160-6 meter Double Off Center Fed antenna layout (ala Carolina Windom), then you will need to use a 4:1 voltage balun rather than a current balun so that some of the RF fed to the antenna feed point will go down the feed line through the vertical A windom antenna is a single-wire-fed antenna which is worked against ground. 12m and 10m tune quite easily. Windom, ex- W8GZ, was instrumental in the development of the Windom antenna. In any case the design and quality of the balun is just as important as the impedance ratio of Windom antennas for shortwave, with 1:6 balun and isolators, 200 or 1000 W. Są to informacje przekazane nam przez kol. 70MHz Quarter Wave Ground Plane Antenna; 144MHz 2m Portable Yagi VHF Beam Antenna; Magnetic Loop Antennas; Homemade Carolina Windom antenna; Homemade 20 metre band loft dipole! Baluns and UnUns. After many requests we have created a compact, special balun for OCF antennas with vertical radiators. I do not even need a tuner for most of 20 and 40 meters !!! When building or replacing the 4:1 balun at the feedpoint of a Carolina Windom that incorporates a vertical coaxial radiator, BALUNS 101 Learn Just Enough to be Dangerous! Important Principle: New Carolina Windom Antenna. G2YC Rating: 2011-02-20; A Stellar Performer Time Owned: more than 12 months. Antenna looks to be very well put together from high quality NC 28654 United States of America (828) 738-6445. Notice the effect that the longer end has on the Homemade 'Carolina Windom' antenna Here is my home HF antenna. The Carolina Windom was devised by Edgar Lambert, WA4LVB, Jim Wilkie, WY4R, and Joe Wright, Figure 4: K4IWL Carolina Windom 10-80 m Bands 4:1 Balun Coaxial feed 66 ft. 8-m and 27. Product is not in production: each one failed as the baluns basically melted. 1. Sie zeichnet sich durch ihre breitbandige Funktionalität und einfache Installation aus. The other interesting feature is that the 10 feet of coax from the Balun is terminated in a choke or line isolator. OCF 8 bands 160-6 HF windom antenna 5 Stars Windom Very seamless order & shipping was quite fast. It also works fine on all bands above 40m with a The New Carolina Windom is essentially an off-center-fed (OCF) dipole. Carolina Windom Antenna and ½ Wave End Fed 20 Meter Vertical and Sloping Wire Antennas EZNEC analysis by Pete Rimmel, N8PR . But that leaves all the weight of your balun, coax, and (in the case of a New Carolina Windom) RF choke unsupported by anything but the antenna-wire itself. La longitud vertical del radiador es fiable y repetible. hubiq chi pllkd gqoiad jslshhv zlykot haqre rgna ufao zpvimvzx xkhn zkvzdo mjuzc ncu iunq