Homebrew Ocf Windom Antenna

We specialize in wire antenna systems. Windom antenna with a 4:1 transformer. 3-band OCF wire antenna 2KW. 61 m Short Side 13. The New Carolina Windom is essentially an off-center-fed (OCF) dipole. THE OCF FD4 (FD3) WINDOM ANTENNA. The OCF dipole presents a reasonably good match to the transmitter across multiple bands which are EVEN harmonics of the fundamental frequency, including 80, 40, 20, 10 and 6 m bands. Carolina Windom Poor Transmit Performance My QTH consists of a Pixel amplified mag loop antenna for HF receiving. The new antenna's feature is. The RadioWavz DX (OCF) Windom is a off center fed (OCF) dipole antenna that exhibits outstanding performance on multiple bands typically with out a tuner. Looking for Brent Windom ? PeekYou's people search has 2 people named Brent Windom and you can find info, photos, links, family members and more. OCF 8 bands 160-6 HF windom antenna; Ni4L Dipole Antenna; Description. com in 3 categories. Monday, April 25, 2016 Simple Ham Radio Antennas--80-6 meter OCF Dipole Antenna for SHTF or Backpacking Part 2. One of the antennas I found was the Windom. It was quite noisy, and leaked a ton of RF into the shack, even with the appropriate counterpoise. 1) is an horizontal antenna composed of two legs with a total length calculated as L = ( 142,5 / Frequency MHz ). It is an off centre fed dipole, with 10 feet of vertical radiator. The modern common Windom antenna is not an original single-wire fed Windom, but rather an off-center-fed or "OCF" two wire feed dipole. dx80 dx radiowavz radiowavz (ocf) 80,40,20,10m windom windom 80,40,20,10m dx80 (ocf) dx radiowavz radiowavz $108. Overview - This is the 6-40 meter Alpha OCF Dipole Antenna. Wire Antenna Calculator. However, it is up only about 4m height from a metallic roof. The 21 pictures here follow it from where it leaves my antenna tuner out the shack window, in the attic window, through the attic, out the back attic window down to the end at a post in the back yard. The DX'pedition team also had a beam and verticals, but the New Carolina Windom was the antenna they used. I think the root cause of the EFHW failure was because one end was tied to the porch, which did not allow any give when there was some wind. Fritzel FD4 OCF Dipole The Frizel FD4 Windom is an OCF (Off Centre Fed) antenna that has been around for a long time. The single-wire feeder radiated RF all the way into the operating position. Now, how was a Windom antenna developed?. Single wire fed Windom 80m long. com **Also, feel free to provide any info you like: such as DX worked, performance, and your opinion of the antenna!** Thanks again for your business!. EAntenna 160OCF3 OCF WINDOM 160m 3kW. Delta Loop Antenna. THE OCF FD4 (FD3) WINDOM ANTENNA. com in 2 categories. Home Brew Carolina Windom 40 I have been experimenting with wire antennas since I got my technician ticket in November of 2010 and it realy took off when I passed my general in Jan of 2011. Scanning all available deals for Ocf Dipole Antenna shows that the average price across all deals is $6. (• Windom(for(10(- 40(meters(shown. OCF Dipole antenna BALUN 4:1 BL-41W-2K for OCF / Windom antenna with insulators. OCF WINDOM DUAL CORE CURRENT BALUN 3KW LADDER LINE. The antenna can be mounted as a simple dipole or inverted veeThe OCF-3K40 is complete and ready to install. The apex on my OCF is 10m AGL. 5' in from one end. *FREE* shipping on qualifying offers. I'd rather use a Cecil Special, but a Carolina Windom might be more physically convenient in some cases. Referring to previous discussion, we know that the antenna impedance is not balanced with respect to earth. SSB TRANSCEIVER 40 M BAND. The Carolina Windom, however, wants the feed line to radiate (at least a portion of it) in order to gain the vertical radiation and some performance. I am installing a Carolina Windom Short 80 and am not sure which way to orient it. The antenna is feeded at a distance of 14 % of the total length, measured from the center point. The antenna can be employed on 80, 40, 20 and 10m with considerable, though acceptable levels of VSWR. windom 10-160. Here's a test of an OCF dipole constructed out of an old set of scavenged Christmas Lights (homebrew by KK6FUT). Delta Loop Antenna. This morning however I did make a contact to Topeka, KS so I know it gets out. I have been reading and researching trying different things and this is my latest attempt at making a wire antenna. I then tried some home brew dipoles made with thin 22 gauge wire (which is fine for QRP). In my book “Introduction to Antenna Modelling” I talk about how you can get more bands out of a 40m off centre fed dipole (OCFD – sometimes incorrectly called a Windom) by adjusting the feed point position. Alpha Delta Communications: wire antennas, traps, dx-ocf, -Openfos - OPENFOS is a leading Business search and directory serving the US B2B community. A Non-Ideal Way To Install An 80m OCF Dipole Building a "Dirgly Balun" to Make a Windom Antenna from a RadioWavz OCF Dipole Does Antenna Size Matter? 6 inch Dipole. Off-center-Fed dipole Antennas is a curation of 13 resources about, OCF Dipole, The Six Meter OCF Sleeve Dipole Vertical, Center-Loaded Off-Center-Fed Dipole - 6 band, 80m OCF Dipole, Windom off center fed antenna 80-10 mt. All of our products are made of top quality materials, and constructed to last in harsh environments. The New Carolina Windom Antenna As with all ham stations QRO or QRP, ten percent of a station’s success in quality QSOs is the equipment and the operator. I built the FEK antenna to the original specs but added a few feet to the radials to bring the resonant freq to the low end of the bands as I work more CW than SSB. 4-Band: 40, 20, 10, & 6 meters. (Half Size) Ham Radio Antenna: This project gives instruction on how to build my version of the G5RV wire antenna that is used on the 10-40 Meter Ham Radio bands (28MHZ to 7MHZ). 5 - 54 MHz 5kW It should be noted that OCFD antennas were. < Buxcomm Windom Antenna>. It is an off centre fed dipole, with 10 feet of vertical radiator. 6 m), and was installed at a height of 20 ft (6 m). A current balun is the proper choice for an OCF dipole, since it effectively chokes common-mode current from standing on the feedline. 2(b): But when erected as an inverted-V you gain a couple of S-points (10 - 12dB) in the. Current type 4:1 (200:50 Ohms) BALUN is another product designed for OCF antennas (Off Center Fed) also known as Windom antenna. I had been using an 80m loop for 80 and 40. 8% for one side and 62. Vladimir Fursenko, UA6CA. Danny is a former Cushcraft antenna engineer and was responsible for many of their verticals and yagis. Windom balun made with surplus ferrite rods. I am using a home brewed OCF now around that length with a current balun and I plan on staying with an OCF for years to come due to it handling the lower bands. These same characteristics also make the "Carolina" windom an excellent receiving antenna. Evolving from a simple end-fed Marconi for 80m, the idea was to use the opposing. Tools Checker. homebrew 4 to 1 balun untuk windom antenna Ini adalah 4-1 balun yang diperbuat daripada speaker wire,nampak mudah kerja-kerja driling agak sukar kerana ketepatan lubang adalah penting,bahan lain adalah cable lug,pvc pipe 11/4". The Easy Way Antenna Systems, End Fed Antenna with a 1:64 Matching Network, The MonoGap Antenna for 30m Reviewed, J-Pole Construction Drawings , How to Find Old Amateur Radio Call Signs, Fighting Antenna Corrosion - Antenna Maintenance, The Classic Beverage Antenna Revisited, How to locate RFI, FT CALC 1. The biggest and best ham radio classifieds on the web! Buy, sell, trade HF and VHF equipment, towers, antennas, rotators and more!. Now, how was a Windom antenna developed?. com Here is my home HF antenna. Glad I was able to get my OCF back up. However, it is up only about 4m height from a metallic roof. VK6AAL - Windom. OCF Dipole and Window Line Choke. You also need to consider the power ratings of the feed line and antenna tuner. It incorporated a pair of 807's in the final putting out 100 watts. I am using a home brewed OCF now around that length with a current balun and I plan on staying with an OCF for years to come due to it handling the lower bands. Note: It is not imperative to feed the OCF antenna at the point shown. 32 for the short side wire. In order to get an idea of the right place to start, certain formulas are generally accepted. I built an 80m OCF/Off Center Fed antenna and have found it to be one of the best mufti-band antennas you can use. 5 across both bands. Here is my home HF antenna. Multi-band wire antenna for 40,20,10,(6)m 1:4 current balun according to Guanella with two toroids TX58/41/18-4C65 large toroidal cores wound with Teflon ® strand silverplated AWG16. | Antenna Collinear | Antenna Delta loop | Antenna End Fed | Antenna Eh | Antenna Fan dipole | Antenna G5rv | Antenna Halo | Antenna Helix | Antenna HexBeam | Antenna Hentenna | Antenna Isotron | Antenna J-pole | Antenna Log Periodic | Antenna Low Bands | Antenna Loop Magnetic. THE OCF FD4 (FD3) WINDOM ANTENNA 19 may 2011. Taking one vertical angle and frequency with another, the RadioWavz DX (OCF) Windom is Omni directional. On the other hand, an OCF dipole is an ungrounded dipole antenna fed with twin-conductor line, either coaxial or open wire parallel conductors. The Windom antenna has been around forever it seems. Glad I was able to get my OCF back up. Fritzel FD4 OCF Dipole. 98; Postage not specified; Off Centre Fed Dipole Windom Style Antenna 80-6m Bands Hf Antenna Atu 4:1 Balun. At the balcony he has a Diamond V2000 vertical antenna for 6/2/70, and an MFJ loop antenna for 15-40m. Over the past couple of years I've used a number of wire antennas, including a G5RV Junior, an EFHW, and a Carolina Windom 40. The main category is OCF Antennas that is about Off-center-Fed dipole Antennas. Rick Sagers, W7YC. 160m, 80m, 40m, 20m,10m It's also ideal for those who want a high performance antenna with world class DX coverage. Windom, W8GZ in QST for general coverage of HF bands. Why my 80/40 antenna was non standard lengths to fit it on the block I had to bend some of both ends at 90 degrees down and they came very close to the trees used to suspend them. A "true" Windom, from what I've read, is an off center feed dipole fed with a single wire feed line. Any azimuth or elevation slice can be highlighted. Using our field day equipment we set up four wire antennas to find out for ourselves how they play. WINDOM ANTENNA. I am installing a Carolina Windom Short 80 and am not sure which way to orient it. SSB TRANSCEIVER 40 M BAND. To work well, however, the ground side of the antenna tuner needs to be connected to a network of radial wires, or a counterpoise. The antenna presented here is based on an EZNEC model that uses G3TXQ's tapered segmentation, K4KIO's closer element spacing, and HB9MCZ's square aluminum transmission line. WINDOM OCF Antenna 10-160m 1Kw 256ft. OCF/Windom Antennas I thought I would take time to share my HF antenna experiences since I am very happy with the antenna I have up now. The Windom antenna has been around forever it seems. External tuners work quite well also. Banyak sekali all-band atau multiband antenna dari kawat yang bisa kita jumpai dan memungkinkan untuk dibuat, diantaranya yang cukup termashyur adalah Windom Antenna (OCF Dipole = Offset Centre Feed Dipole), G5RV, G7FEK, Loaded Dipole, dll. Being that I was building a 10 thru 80 antenna ( if you remember it was a 40) I had to change the length of wire also. However as is normally the case, making an antenna operate on several bands comes with a cost. The Off-Center-Fed Long-Wire W1FB's Antenna Notebook, 1987, pp. Antenna can be installed: horizontal, vertical, inverted l or sloper. Military AS-2259/GR There are a number of different NVIS antenna plans on the internet that can be adopted to amateur radio use. Mag loops look intriguing but don't quite cover the bands I want - maybe in the future. The RadioWavz DX (OCF) Windom is ideal for those of you who do not use a tower and beam. Add to cart. I'd rather use a Cecil Special, but a Carolina Windom might be more physically convenient in some cases. We specialize in wire antenna systems. ages ago n9ysq says: homebrew 20 m ground plane at home worked Spain first thing. Workman BS-1 Dipole Antenna = Easy Mod to make it a Mini-Windom Antenna !. I am fairly new to the hobby but I do know about measurements and electrical lengths in general. Off-center-Fed dipole Antennas is a curation of 13 resources about, OCF Dipole, The Six Meter OCF Sleeve Dipole Vertical, Center-Loaded Off-Center-Fed Dipole - 6 band, 80m OCF Dipole, Windom off center fed antenna 80-10 mt. ages ago n9ysq says: homebrew 20 m ground plane at home worked Spain first thing. The OCF doublet (which a lot of people call a "Windom" -- even though it's not) is not a balanced antenna, and should not use a balun. Current type 4:1 (200:50 Ohms) BALUN is another product designed for OCF antennas (Off Center Fed) also known as Windom antenna. It also works fine on all bands above 40m with a tuner, and even below 40m on 60m, and 80m, although the coax losses will be higher. An OCF is easily build so build both and try them out. Stealth antennas for the loft Fig 4. This is a very desirable characteristic on the lower bands 40 meters, 80 meters and 160 meters. That's just a fact. * * * A Bad Rap?. OCF Antenna. I modified this antenna originally used as Inverted-V type of 80m band Dipole a little. Off-Center-Fed Dipole, OCFD, Windom. At 132 feet it is. The homebrew beam design was optimized with AutoEZ. antenna manufacturers, or compared to resistor loaded antennas, the Carolina Windom is a regular paragon of virtue. Evolving from a simple end-fed Marconi for 80m, the idea was to use the opposing. 4 inch (61mm) wound with PTFE wire is the best CURRENT BALUN design used with unbalanced antennas. Antenna hight: 35-55 ft. VK6AAL - Windom. So, does anyone know anything about the K2ZIA analyzer? Any other good Homebrew analyzers? Also, antennas, how much will regular stranded THHN 12 gauge stretch before it stops for trimming to be effective?. Over the past couple of years I've used a number of wire antennas, including a G5RV Junior, an EFHW, and a Carolina Windom 40. hope thats coherent. 6 m), and was installed at a height of 20 ft (6 m). Home of the original WINDOM Our Favorite Multi-Band Antenna The number "1" HAM station, field-day, and contesting, wire type antenna in the world today. Receptor Radios Diy Electronics Radios Diy Electronics. LA-320 Loop Antenna : LA-350 Loop Antenna: LA-380 Loop Antenna: LA-390 Loop Antenna: LA-800 Loop Antenna: WL-500 Window Loop Antenna: Apex: 303WA Vertical Antenna: 700DTA Active Antenna 0. CAROLINA WINDOM® 80 The perfect, high performance antenna. 99 shipping. He has a balcony on the rear (south) side, but high buildings are very close, he has no direct sight in any direction. Fritzel FD4 OCF Dipole The Frizel FD4 Windom is an OCF (Off Centre Fed) antenna that has been around for a long time. I have a tuner, but experience has told me that RFI burns your lips, so never mind that idea. Information about homebrew antennas and field tests is also available. Many hams seem to believe that "resonant" antennas are fundamentally superior to those requiring a matching network. This link is listed in our web site directory since Sunday Jul 29 2007, and till today "6-Band Windom antenna" has been followed for a total of 48794 times. I think the root cause of the EFHW failure was because one end was tied to the porch, which did not allow any give when there was some wind. The picture on the right above shows an OCF Dipole with the feedpoint positioned at the same feedpint of the classical WINDOM antenna, fed with 50 Ohm coax through a 4:1 or 6:1 balun at a point 1/3 of the distance from one end. Top DX performing Windom design antenna. About Maxcon Our goal is to build quality products at prices no higher than what hobbyists would pay in building them, themselves. 1-16 of 114 results for "windom antenna" Skip to main search results OCF 8 Bands 160-6 HF Windom Antenna Flex-Weave. You can expect feedline radiation. The 8-Band is 270 feet (82 meters) long; 180 feet (55m) on one side of the center, 90 feet (28m) on the other side. Whatis(aWindom(• Itis(an(offAcenter(fed(dipole(and(can(be(constructed(as(a(mulFband(antenna. Windom balun made with surplus ferrite rods. This inspired author Belrose, VE2CV, to reopen his files on the "Windom antenna," or, more properly, the off-center-fed dipole. Single articles:. On40 meters. Over the last 28 years I have tried many different 160 meter antennas. We will do our best to provide you with a quality product that will last years. Cebik, W4RNL Off-center-fed (OCF) antennas seem to offer the amateur with limited space a solution to the problem of being able to work many HF bands with a single wire element. I modelled the Carolina Windom but found that a conventional single wire fed Windom appeared to have marginally more gain. SSB TRANSCEIVER 40 M BAND. Vladimir Fursenko, UA6CA. It had broken several times and needed to be retired. In the total length of this antenna is 41m, height is about 11m, and diameter of element is 2mm. Balun Designs LLC - When Performance Counts & Quality Matters Model 4115ocf - 4:1 for OCF Dipoles 1. All the power goes up to thefeedpoint with coax and very little comes back because we will CHOKEit ! For this design we look at a resonant dipole for the lowest band desired and feed it off center with a balun. Buckmaster OCF Dipole Antennas are made from the best quality materials with a completely potted waterproof balun and no external connectors. Also a delta loop and a doublet (both fed with open wire line). Holes are 1/4 wide so will accommodate all common rope and wire size. This is important because if the mast extends above the antenna ground plane it will affect the performance of the antenna. DX 40 OCF SHORT 37 FT 1500w SSB/PEP 200w CW; DX 80 OCF SHORT 77 FT 1500w SSB/PEP 200w CW; DX 160 SHORT 147 FT 1500 w SSB/PEP 200w CW; DX OCF WINDOM 40m,20m,10m. I have a tuner, but experience has told me that RFI burns your lips, so never mind that idea. The "Carolina" windom thus becomes a near-omnidirectional antenna. The original windom was a Zepp-type antenna fed 14% off-center with a single wire. windom 10-160. Our motorized antennas and stainless steel mounts are designed with the most avid HAM radio operator in mind, as well as commercial applications. At the balcony he has a Diamond V2000 vertical antenna for 6/2/70, and an MFJ loop antenna for 15-40m. Off-center-Fed dipole Antennas is a curation of 13 resources about, OCF Dipole, The Six Meter OCF Sleeve Dipole Vertical, Center-Loaded Off-Center-Fed Dipole - 6 band, 80m OCF Dipole, Windom off center fed antenna 80-10 mt. The Isolated Off-Center-Fed Antenna: Some Less-Explored Facets L. DX 40 OCF SHORT 37 FT 1500w SSB/PEP 200w CW; DX 80 OCF SHORT 77 FT 1500w SSB/PEP 200w CW; DX 160 SHORT 147 FT 1500 w SSB/PEP 200w CW; DX OCF WINDOM 40m,20m,10m. Review (mpn: 160-6 for sale) 160-6 Meter Fed Hf Antenna 200 Watt Ocf Llc. A Windom Antenna by K3MT. I am using a home brewed OCF now around that length with a current balun and I plan on staying with an OCF for years to come due to it handling the lower bands. 5 - 54 MHz 5kW It should be noted that OCFD antennas were. The RadioWavz DX (OCF) Windom is ideal for those of you who do not use a tower and beam. The homebrew beam design was optimized with AutoEZ. I don't know who first tried this method but it was named for General Loren G. On the low bands, the CAROLINA WINDOM 160's rivals are few, if there are any at all, but you need a lot of room to put one up. Resources listed under OCF Antenna category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators. All of our products are made of top quality materials, and constructed to last in harsh environments. If you mean an OCF doublet and not a real "Windom," the problem of course is the matching transformer. Single wire fed Windom 80m long. The Windom antenna has been around forever it seems. Home Brew Carolina Windom 40 I have been experimenting with wire antennas since I got my technician ticket in November of 2010 and it realy took off when I passed my general in Jan of 2011. 1-16 of 114 results for "windom antenna" Skip to main search results OCF 8 Bands 160-6 HF Windom Antenna Flex-Weave. The DX'pedition team also had a beam and verticals, but the New Carolina Windom was the antenna they used. Banyak sekali all-band atau multiband antenna dari kawat yang bisa kita jumpai dan memungkinkan untuk dibuat, diantaranya yang cukup termashyur adalah Windom Antenna (OCF Dipole = Offset Centre Feed Dipole), G5RV, G7FEK, Loaded Dipole, dll. The dual dipole wires do the job of providing guying support for the mast. The 7-Band antenna is OCF (off-center-fed), with a 46 foot ( 14. A windom antenna is a single-wire-fed antenna which is worked against ground. The single-wire feeder radiated RF all the way into the operating position. Here is a spreadsheet I designed in Microsoft Excel for calculating the first cut and the final cut (after testing) of a 1/2 wave dipole, whether center-fed, classic off-center-fed, Windom, or New Carolina Windom. The RadioWavz DX (OCF) Windom is a off center fed (OCF) dipole antenna that exhibits outstanding performance on all bands. Like everything else, antennas come in many forms and flavors. The SWR is generally below 1. Search this site. FD4 (80/40/20/10 m). The Windom is an antenna that enables operation, 80 through 2 meters, without an antenna tuner. It's also ideal for those who want a high performance antenna with world class DX coverage. A Non-Ideal Way To Install An 80m OCF Dipole Building a "Dirgly Balun" to Make a Windom Antenna from a RadioWavz OCF Dipole Does Antenna Size Matter? 6 inch Dipole. hope thats coherent. 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. Folded Marconi Tee Antenna 8 10. Here is a spreadsheet I designed in Microsoft Excel for calculating the first cut and the final cut (after testing) of a 1/2 wave dipole, whether center-fed, classic off-center-fed, Windom, or New Carolina Windom. 2 1/4" 61 ferrite core 14 AWG silver tinned copper Teflon jacket 3" PVC enclosure All stainless steel. It can be fed with standard 50 ohm coax. Being that I was building a 10 thru 80 antenna ( if you remember it was a 40) I had to change the length of wire also. Introduction - Our engineers are proud to bring you a German engineered portable antenna in a revolutionary housing that is both beautiful and functional. I recommend, as others have already said, a center fed dipole. 40 - 6 METER OFF-CENTER-FED DIPOL OCF ANTENNA. Homebrew 4 to 1 balun for windom antenna. Cebik, W4RNL Off-center-fed (OCF) antennas seem to offer the amateur with limited space a solution to the problem of being able to work many HF bands with a single wire element. On the low bands, the CAROLINA WINDOM 160's rivals are few, if there are any at all, but you need a lot of room to put one up. 36-38 This is a simple wire multiband antenna that can be fed with either coax or ladder-line and can be made to operate well from 160- to 10-meters with an antenna tuner. The apex on my OCF is 10m AGL. Current type 4:1 (200:50 Ohms) BALUN is another product designed for OCF antennas (Off Center Fed) also known as Windom antenna. Rule of thumb - if the antenna produces more than 3:1 VSWR, and you want to feed it with coax, match it to 50 ohms with a network at the antenna, not in the shack. 2 1/4" 61 ferrite core 14 AWG silver tinned copper Teflon jacket 3" PVC enclosure All stainless steel. The 7-Band antenna is OCF (off-center-fed), with a 46 foot ( 14. FD4 (80/40/20/10 m). OCF Antenna. The New Carolina Windom is essentially an off-center-fed (OCF) dipole. Domain Search: Search Now. Search this site. Windom antenna with a 4:1 transformer. Although it worked quite well as an antenna, all that hardware took away from the “portable” aspect of the project. I am considering using an Off Center Fed Dipole or a G5RV or a Carolina Windom. type of antenna used to be called an end-fed Zepp. The modern common Windom antenna is not an original single-wire fed Windom, but rather an off-center-fed or "OCF" two wire feed dipole. Being that I was building a 10 thru 80 antenna ( if you remember it was a 40) I had to change the length of wire also. David has been testing one of the recent 80M models Rick built for the past couple of months, with excellent results. It also works fine on all bands above 40m with a tuner, and even below 40m on 60m, and 80m, although the coax losses will be higher. No tuner required, although 160 may need one in some cases. Wire antennas need to be made a bit long and cut to resonance. Once again I share a video from Gil F4WBY, the Radio Prepper. 5:1 on 6, 10, 20, 40 & 80m bands and can be operated without an antenna tuner. To achieve this the 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. The dipole is constructed using top quality, Poly-STEALTH 13 Breaking strength 370 lbs. I've always been at least slightly interested in ham radio, in fact, back in college, I often hung out at the ham radio station. (Half Size) Ham Radio Antenna. On the low bands, the CAROLINA WINDOM 160's rivals are few, if there are any at all, but you need a lot of room to put one up. Quickly switch bands and eliminate a tuner as one more thing to adjust. THE OCF FD4 (FD3) WINDOM ANTENNA 19 may 2011. G5RV or 135 foot doublet or Carolina Windom? best wire antenna installation I can come up with. I modified this antenna originally used as Inverted-V type of 80m band Dipole a little. Like everything else, antennas come in many forms and flavors. Flexible wire antennas with center insulter for easy hanging. This picture shows that the base of the antenna is mounted flush to the top of the mast. ocf 160-6 hf windom antenna w/ 4:1 balun and 200' rope sku: $0. The Carolina Windom, however, wants the feed line to radiate (at least a portion of it) in order to gain the vertical radiation and some performance. Purists would not call this a Windom antenna anymore because of the absence of the single-wire feedline. The 4-band Fritzel model FD4 is a special version of a Windom antenna. The new antenna's feature is. Multi-band wire antenna for 40,20,10,(6)m 1:4 current balun according to Guanella with two toroids TX58/41/18-4C65 large toroidal cores wound with Teflon ® strand silverplated AWG16. The windom antenna OCF HF antenna is a multiband antenna wire able to work with high efficiency on all bands from 3. I put up a Windom antenna in my tree in the back yard and it has a 4:1 balun. OCF Antennas 10-160m 1Kw 256ft Available €169. 333 feet long. 1 deals were found for Ocf Dipole Antenna. Random Length Radiator Wire Antenna. My least favorite was the EFHW. The antenna shown covers 80, 40, 20 and 10 meters with 15 meters and WARC bands only available with an antenna. Introducing the W8AMZ 80–6m OCF / Windom Multi-Band Antenna using a 4:1 Balun and rated for 2 KW. Scanning all available deals for Ocf Dipole Antenna shows that the average price across all deals is $6. Taking one vertical angle and frequency with another, the RadioWavz DX (OCF) Windom is Omni directional. Referring to previous discussion, we know that the antenna impedance is not balanced with respect to earth. i had used an OCF at my other station in Nova Scotia for years with great success, so when it came time for a new antenna here in Maine, it was a no-brainer. 7 Band OCF Windom Dual core Current balun 3KW Flex Weave Antenna HF Due to the fact that one wire leg of the antenna is shorter than the other, the OCF is more. In my book “Introduction to Antenna Modelling” I talk about how you can get more bands out of a 40m off centre fed dipole (OCFD – sometimes incorrectly called a Windom) by adjusting the feed point position. Interesting to study in the Internet: windom, carolina windom, ocf dipole, double windom, balun. OCF Dipole 7 band 80-6 meters Poly-Stealth Antenna Ni4L Antennas & Electronics, Ham Radio Antenna, Amateur Radio Antennas, Shop with confidence, Amateur Radio, Homebrew Antennas, Hf Radio Dipole Antenna Ham Radio Antenna Shtf Weave Over Ear Headphones Bob Copper Bands. Transmitting has been done on a Carolina Windom and also a 55' random wire/counterpoise antenna on 80-6M. Scanning all available deals for Ocf Dipole Antenna shows that the average price across all deals is $6. This antenna wil be resonate on 6,10, 20 & 40m. So the measurements are based on a 40 meter 1/2 wave dipole. They are simple to build: a simple wire and a balun 4:1 or 6:1, to convert the impedence of 200 - 300 ohm to 50 ohm. I think the root cause of the EFHW failure was because one end was tied to the porch, which did not allow any give when there was some wind. Banyak sekali all-band atau multiband antenna dari kawat yang bisa kita jumpai dan memungkinkan untuk dibuat, diantaranya yang cukup termashyur adalah Windom Antenna (OCF Dipole = Offset Centre Feed Dipole), G5RV, G7FEK, Loaded Dipole, dll. We will do our best to provide you with a quality product that will last years. The RadioWavz DX (OCF) Windom is ideal for those of you who do not use a tower and beam. Receiving antennas including Beverages and Beverage Antenna Construction, Loops, K9AY, Pennant, Flag, EWE, Slinky Beverage Antennas, vertical arrays, magnetic loop antenna, and terminated loop arrays. I do need to make a correction in calling the EFHW a non resonant antenna. This antenna is not a good match to modern transmitters, but it worked quite well in its day, so a few modern antenna builders have capitalized on the famous name (much like the various “G5RV” antennas I have seen). Rule of thumb - if the antenna produces more than 3:1 VSWR, and you want to feed it with coax, match it to 50 ohms with a network at the antenna, not in the shack. This is about the OCFD and not a Windom, Carolina Windom, or End-Fed Zepp. Windom Antenna EAntenna 40OCF1,5 Windom 40 ideal for fix and portable seasons. dipole antennas for ham radio. The SWR is generally below 1. The new antenna's feature is. If you are okay with all of that then try it out. Antenna 160OCF3 OCF WINDOM 160m 3kW. The Maple Leaf Studio offers some excellent antennas for those of us with limited mechanical abilities. Does it work? You betcha!. Half Delta Loop Antenna. Transmitting: Pictures of some transmitting antennas at my station. 6 out of 5 stars 2. Deals are available from 1 stores. We use cookies to ensure that we give you the best experience on our website. My thing is i'll have to build or buy a meter to measure actual common mode which the 80m OCF is known for to know if its an issue or not with my current set up, which if I'm reading this right could transfer as an issue to the grounding as a secondary antenna. The antenna was created for the 40 meter band and above. It's also ideal for those who want a high performance antenna with world class DX coverage. The best built G5RV, ZS6BKW, OCF/WINDOM, SLOPER, and DIPOLE Amateur Radio HF wire antennas. multi-band antenna. I modified this antenna originally used as Inverted-V type of 80m band Dipole a little.