Homebrew Ocf Windom Antenna

In other words an 80-meter Windom 137 feet long would have one leg 45. 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 SWR across the bands than a Voltage balun. Antenna analysis software by Roy Lewallen. At 132 feet it is. 64 for long side and. Fritzel FD4 OCF Dipole. Off-Center-Fed (OCF) Dipole Antenna for the National Weather Service. The Windom (or OCF Dipole if you prefer), offers a true multi-band, experience without much use of a tuner. 5-30 MHz: B&W: ASW-5 SWL Window Antenna: ASW60L/60C/100 SWL Dipole Antenna: Dressler: ARA-40/60/100HDX Active Antennas: Kaito: KA31 Indoor Active Loop Antenna. Also a delta loop and a doublet (both fed with open wire line). Current type 4:1 (200:50 Ohms) BALUN is another product designed for OCF antennas (Off Center Fed) also known as Windom antenna. (Click on Image to Enlage) KG7SXF - Drew Dorsett Lynnwood, WA : STATION: Yaesu FTDX-3000 ARD-230CA Kessler AT-Auto Heathkit SA-2060A Yaesu FTDX-1200 Ameritron ALS-500M. Power: 1500w SSB/PEP 200w CW 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. I have built and used both a full size G5RV and a 80m Windom (OCF) in the past (the same as the Carolina Windom that Radioworks makes), the G5RV being more common on the bands because of its simplicity and cheapness, they both work. It is an off centre fed dipole, with 10 feet of vertical radiator. Tried most of the stuff you mention. Evolving from a simple end-fed Marconi for 80m, the idea was to use the opposing. 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. The 4-band Fritzel model FD4 is a special version of a Windom antenna. The Maple Leaf Studio offers some excellent antennas for those of us with limited mechanical abilities. A true window is kind of like a top loaded vertical with the top hat fed off center. It is an off centre fed dipole, with 10 feet of vertical radiator. 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 SWR across the bands than a Voltage balun. FD4 (80/40/20/10 m). Zeppelin Antenna 8 11. This video from Tom (K2BEW) shows us the popular Off Center Fed Windom Antenna from this manufacturer. All the products are designed and built by me, Danny Horvat, an antenna design engineer, also know as N4EXA and E73M, licensed amateur radio operator. 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. 25 meters ) leg and a 90 foot ( 27. Can be used as a off center fed shortwave antenna to provide continuous coverage from 500 kHz to 60 MHz. Now, how was a Windom antenna developed? It began with a center-fed, half-wave dipole. Homemade Carolina Windom antenna - M0UKD. The RadioWavz DX (OCF) Windom is ideal for those of you who do not use a tower and beam. Tried most of the stuff you mention. TheBUXCOMM model 802134 Windom is an antenna that enables operation, 80 through 6 meters, without an antenna tuner. 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. 1) is an horizontal antenna composed of two legs with a total length calculated as L = ( 142,5 / Frequency MHz ). Discover ideas about Ham Radio Antenna Discover ideas about Ham Radio Antenna. Station Descriptions - The purpose of this page is to share with others the equipment, accessories, and antennas being used by Tomato. Another old-time antenna is an off-center-fed dipole, called a Windom way back when. It can be fed with standard 50 ohm coax. Operation on 12,15,17,30,60,80m will be tuner dependent. Most transmitting antennas link from the top of this page. I'm using it to demonstrate the resonance of the Windom on different bands. 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. 8% for one side and 62. Stroobandt, ON4AA, in the year 2006. The RadioWavz DX-160 (OCF) Windom is ideal for those of you who do not use a tower and beam. OCF-8010E-3K OCF Antenna Windom 80/40/30/20/15/12/10m http://qrznow. 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 8-Band is 270 feet (82 meters) long; 180 feet (55m) on one side of the center, 90 feet (28m) on the other side. When I travel, I take one of these made of #22 insulated hookup wire. This is a 4-1 made from a wire speaker, it seems easy drilling works are quite difficult because the hole accuracy is important, the other material is cable lug, pvc pipe 11/4'. Even though it is a "compromise" antenna, it has good overall performance on most hf ham bands when used with an external tuner, and allows coax as an entry feedline to the radio equipment eliminating the need and hassle of ladder line or twinlead. Vladimir Fursenko, UA6CA. Windom antenna has no transmission line -- a single wire is attached to the radiator. 40 - 6 METER OFF-CENTER-FED DIPOL OCF ANTENNA. ó , kdyh kdg \rxu pxowledqg hqg ihg dqwhqqd lqvwdoohg khuh lq 6lqjdsruh iru d ihz zhhnv qrz dqg dp yhu\ sohdvhg , xvhg wkh zluh iurp p\ suhylrxv dqwhqqd zklfk lv ihhw orqj ,w zrunv ehdxwlixoo\ , kdyh lw. 7-Band OCF Antennas Our 7-Band antennas cover 80, 40, 20, 17, 12, 10, and 6 meters, with no tuner required! Wire antennas are a great simple way to work 40M and 80M rather than a noisy vertical antenna that requires horizontal radials. So, why not try convert the 2x10 mtr to a 2x6. 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. Tom does an excellent job of showing us the step-by-step process of assembling this multiband HF antenna. Now, how was a Windom antenna developed? It began with a center-fed, half-wave dipole. Feeding the OCF dipole at a point that is one-third of its. Home; Antennas; Homebrew; Radios; Others. 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. No tuner required, although 160 may need one in some cases. Antenna hight: 25 ft. There are no complicated wires or losssy coils to deal with. The picture on the right above shows an OCF Dipolewith 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. Domain Search: Search Now. An OCF dipole produces a radiation pattern very similar to that of a center-fed dipole on its fundamental frequency, and a very nice pattern with lots of gain on its second harmonic frequency. 8% for one side and 62. Note: It is not imperative to feed the OCF antenna at the point shown. The Windom antenna is an off-center fed dipole with an unbalanced coax feedline. Buckmaster OCF Dipole Antennas are made from the best quality materials with a completely potted waterproof balun and no external connectors. Scanning all available deals for Ocf Dipole Antenna shows that the average price across all deals is $6. If you are okay with all of that then try it out. The larger the wire, the wider the bandwidth. The RadioWavz DX (OCF) Windom is a off center fed (OCF) dipole antenna that exhibits outstanding performance on all bands. Simply the best! CAROLINA WINDOM® 80 Compact™ Half-size, full-performance, full coverage. 4 meters ) leg, totaling 135 feet or 41 meters setup as T Top. Made in the USA. An additional discount is available for 1 items. I settled on the “New” Carolina Windom design by K4IWL. Dual cores, total of two (2) 2. 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. 5 to 28 MHz does not use traps or require antenna coupler. The W0BTU antenna covers more bands than either the G5RV or the ZS6BKW. During the years, similar antennas were developed and are generally called Off Center Feed Dipoles. OCF Dipole and Window Line Choke. Ocf Dipole Resource Detail, Buckmaster 7 Band Ocf Dipole Antenna 300 Watts 135, Portable Antennas The Earchi End Fed Resource Detail, Spiral Hf Antenna Resource Detail The Dxzone, Vk5ah Hf 4 Bander Dipole Resource Detail The Dxzone, Buckmaster Dx Ocf Hp 7 Band Antenna Hf Wire Multi Band. It was designed to cover 80, 40, 20 15, and 10 meters. 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. I recommend, as others have already said, a center fed dipole. 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!. For most Windom users, we install our BUXCOMM 802134 Windom in the Horizontal or "flat-top" plane as we would with any other Multi-band antenna. The original Windom antenna (devised in 1928-29), named after Loren Windom, W8GZ. If you continue to use this site we will assume that you are happy with it. antenna! - Proximity to earth changes the impedance - High dipoles are closer to 75 ohms - Low dipoles are closer to 50 ohms • Feedline SWR (and loss) depends on the match between feedline and antenna - Use feedline that matches the antenna • XMTR will reduce power if mismatched - Use an antenna tuner to make the rig happy. All antennas need a common mode balun. Installation The best location for this antenna is as high and far away as possible from utility wires, other antennas, and other structures. Power: 1500w SSB/PEP 200w CW 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. The Windom antenna has been around forever it seems. FS OCF 3KW dipole antenna Windom Made to order. This is a very desirable characteristic on the lower bands 40 meters, 80 meters and 160 meters. 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. With a 4:1 Balun transformer is possible to feed easily by using a coaxial cable of 75 Ohms (300/4=75), like RG59 or RG11. WINDOM ANTENNA. A "true" Windom, from what I've read, is an off center feed dipole fed with a single wire feed line. Over in the United States, interest in the archaic Windom antenna was again revived, lead by the 1978 article in Ham Radio Magazine written by John Nagle, K4KJ (SK) [2]. 한쪽으로 치우쳐 급전하므로 OCF (Off-center Fed) 또는 OCFD (Off-center Fed Dipole) 등으로 부르기도 합니다. 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. Eko on A Homebrew Poor Man Antenna An… Aries on A Homebrew QRP Pocket Size VSW… Jaybe on Homebrew SWR Meter: Arifin on A Homebrew Poor Man All-Band W… Eko Adi sukiswo on A Homebrew Poor Man Antenna An… Eko Adi sukiswo on A Homebrew Poor Man Antenna An… Rosadi on A 13. 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 SWR across the bands than a Voltage balun. Wire antennas are a great simple way to work 40M and 80M rather than a noisy vertical antenna that requires horizontal radials. 40 - 6 METER OFF-CENTER-FED DIPOL OCF ANTENNA. 22 Different Wire Antennas. The Windom antenna is an Omni-directional, off-centre-fed, wire type antenna, that when installed at 35 to 55 feet above ground will exhibit a feed point Impedance near slightly more). They are designed to give you years of trouble-free service! Find Buckmaster OCF Dipole Antennas DX-OCF-40 and get Free Standard Shipping on orders over $99 at DX Engineering!. *FREE* shipping on qualifying offers. 99 shipping. Currently unavailable. This antenna is in use the world over by DX'ers and DX'peditions. Build an effective dipole antenna that needs much less space by adding two loading coils. com/gehlg/v5a. I put up a Windom antenna in my tree in the back yard and it has a 4:1 balun. This is a Custom Built version of the CAROLINA WINDOM® 40. Whatis(aWindom(• Itis(an(offAcenter(fed(dipole(and(can(be(constructed(as(a(mulFband(antenna. 8% for one side and 62. OCF 8 bands 160-6 HF windom antenna; Ni4L Dipole Antenna; Description. Power: 1500w SSB/PEP 200w CW 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. A band change involved taking the whole deal down, changing out the sticks, and hauling it back up. A windom antenna is a single-wire-fed antenna which is worked against ground. 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 page describes a Windom antenna with a 6:1 homebrew transformer. But others say that it radiates best in the direction of the ends. It is an off centre fed dipole, with 10 feet of vertical radiator. The New Carolina Windom By Len Carlson K4iwl. It needs no tuner on 40m, 20m and 10m. The New Carolina Windom is essentially an off-center-fed (OCF) dipole. 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. All of our products are made of top quality materials, and constructed to last in harsh environments. (Click on Image to Enlage) KG7SXF - Drew Dorsett Lynnwood, WA : STATION: Yaesu FTDX-3000 ARD-230CA Kessler AT-Auto Heathkit SA-2060A Yaesu FTDX-1200 Ameritron ALS-500M. 2% for the longest side after determining the half wave length at the lowest operating frequency…. I am a fan of the OCF dipole, but not of the Windom, which is a completely different type of antenna. Power: 1500w SSB/PEP 200w CW 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. It is a dipole fed off center with a 4:1 current balun at the offset feedpoint. Or is there a better attic antenna for maximizing a Flexradio? I'm liking the OCF/Windom so I don't have to have traps and can get the multi-band out of a dipole since it's unbalanced. Off-Center-Fed Dipole, OCFD, Windom. With a 4:1 Balun transformer is possible to feed easily by using a coaxial cable of 75 Ohms (300/4=75), like RG59 or RG11. NVIS Antenna Information Near Vertical Incident Skywave (NVIS) Antenna - W0IPL Commercial Windom/OCF Antennas Alpha Delta Balun Designs - Baluns Maxcon Antennas Radio. Stroobandt, ON4AA, in the year 2006. I am sure going to build this 20m vertical dipole. I think you are asking about an OCF antenna that everybody is now calling a Windom? No matter, my 80 meter OCF antenna is 135. Review (mpn: 160-6 for sale) 160-6 Meter Fed Hf Antenna 200 Watt Ocf Llc. Your configuration should work and not be affected by the slight L shape. Now, how was a Windom antenna developed?. Ocf Dipole Resource Detail, Buckmaster 7 Band Ocf Dipole Antenna 300 Watts 135, Portable Antennas The Earchi End Fed Resource Detail, Spiral Hf Antenna Resource Detail The Dxzone, Vk5ah Hf 4 Bander Dipole Resource Detail The Dxzone, Buckmaster Dx Ocf Hp 7 Band Antenna Hf Wire Multi Band. Commercial “Windoms” are generally not true Windom designs, but merely off-center fed (OCF) dipole antennas. I modified this = antenna=20 originally used as Inverted-V type of 80m band Dipole a little. 80/40m Long Side 24. 80 and 160m. It can be fed with standard 50 ohm coax. I use this formula, 468 divided by 3. ages ago n9ysq says: homebrew 20 m ground plane at home worked Spain first thing. This is a Custom Built version of the CAROLINA WINDOM® 40. I've also considered with the doublet or the homebrew. The antenna can be mounted as a simple dipole or inverted veeThe OCF-3K40 is complete and ready to install. The main category is OCF Antennas that is about Off-center-Fed dipole Antennas. The Windom is an antenna that enables operation, 80 through 2 meters, without an antenna tuner. WINDOM IN THE GRASS. * * * A Bad Rap?. About 6-Band Windom antenna The resource is currently listed in dxzone. The search for a simple broadband, multiband antenna with acceptable SWR over the entire 80/75-meter band continued with the publication of the article by Witt, AI1H, in April 1989 QST. I re did all of the station grounding with copper ground strips and grounded all of the equipment according to ARRL standards. Random Length Radiator Wire Antenna. 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. Call for information and scheduling. They are well made to withstand the sun and weathering for many years and the 40-6 OCF antenna will fit nicely in my limited space application. A six-band, HF Windom antenna April, 1997 This Windom antenna was marketed in the late 70's and early 80's as Smithe's Windom. 3KW Version Our 7-Band antennas cover 80, 40, 20, 17, 12, 10, and 6 meters, with no tuner required! Our 7-Band antennas are OCF (off-center-fed), with a 45 foot leg and a 90 foot leg, totalling 135 feet. This video from Tom (K2BEW) shows us the popular Off Center Fed Windom Antenna from this manufacturer. The normal Windom is described as having a 1/3 length leg, and a 2/3 length leg. EAntenna DX-OCF Wimdom series. So, why not try convert the 2x10 mtr to a 2x6. 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. However, it is up only about 4m height from a metallic roof. It was designed to cover 80, 40, 20 15, and 10 meters. 667 feet long, and the other leg 91. I am sure going to build this 20m vertical dipole. 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. Windom, W8GZ in QST for general coverage of HF bands. Just put up a new antenna yesterday. The so-called "OCF windom. The Windom antenna is an off-center fed dipole with an unbalanced coax feedline. Any thoughts or experiences with these antennas as compared to a half-wave dipole?--. 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. FD4 (80/40/20/10 m). Instrukcje, manual. It needs no tuner on 40m, 20m and 10m. 19 may 2011. Of course many things come into play, center height, end height, balun, etc. However, it is up only about 4m height from a metallic roof. OCF Windom Well I was able to put up my OCF Windom dipole. This new antenna would be a good antenna to compare against the verticals. THE OCF FD4 (FD3) WINDOM ANTENNA. 333 feet long. Just put up a new antenna yesterday. I don't know who first tried this method but it was named for General Loren G. All of our products are made of top quality materials, and constructed to last in harsh environments. The 4-Band antennas are OCF (off-center-fed), with a 23 foot leg and a 45 foot leg, totaling 68 feet. It is an off centre fed dipole, with 10 feet of vertical radiator. In many practical realisations of off-center-fed antennas, the third feed point task of preventing the flow of RF currents on the outer sheath of the coax is often overlooked. Specialising in new & used Ham (Amateur) Radio, Commercial Two-Way Radio, Marine & Aviation equipments. 80/40m Long Side 24. This is OCF antenna also known as Windom antenna fed at 19% of one end. Performance was better that I expected!!! Even worked on 80m and 160m at reduced power. 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. My property size limitation requires that each leg has a bend which runs. multi-band antenna. I'm using homebrew Windom-Antenna recently. The company which sells the antenna says that because the antenna. The 7-Band antenna is OCF (off-center-fed), with a 46 foot ( 14. Dipole Antennas - Performance, Quality, Service. T2FD Antenna Tape Measure Beam— optimized for RDF by WB2HOL Transmission Line Calculator — from AA3RL Transportable Vertical Antenna — from CT1BYR. Tuning is carried out in the same way that you would tune a standard 40 meter dipole. php on line 143 Deprecated: Function create_function() is deprecated. Tuesday, March 15, 2016 Simple Ham Radio Antennas--The Windom Antenna. Multiband Dipole Antenna 10 14. It was too low I think. The RadioWavz DX (OCF) Windom is ideal for those of you who do not use a tower and beam. The best built G5RV, ZS6BKW, OCF/WINDOM, SLOPER, and DIPOLE Amateur Radio HF wire antennas. Note that if you want to use a vertical radiator (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. Такива антени се наричат още OCF (out center feeding) антени. Dual double cores, total of two (2) 2. The RadioWavz DX-160 (OCF) Windom is ideal for those of you who do not use a tower and beam. Made in the USA. CAROLINA WINDOM® 80 The perfect, high performance antenna. This style windom has a 4:1 balun and is rated for 1500 W. Operation on 12,15,17,30,60,80m will be tuner dependent. ANTENTOP- 01- 2014 # 018. The Maple Leaf Studio offers some excellent antennas for those of us with limited mechanical abilities. The search for a simple broadband, multiband antenna with acceptable SWR over the entire 80/75-meter band continued with the publication of the article by Witt, AI1H, in April 1989 QST. Dipole Antenna Calculator. to try some multi-band wire antennas and compare performance. The main category is Multiband Antennas that is about Multiband Antennas. I have plenty of trees but they're all lodgepole pine, so I'll have to climb up rather than throw the support ropes over the limbs. 2(b): But when erected as an inverted-V you gain a couple of S-points (10 - 12dB) in the. Conventional or True Windom Antennas. The tuner in the images below is in BYPASS mode. G5RV or 135 foot doublet or Carolina Windom? best wire antenna installation I can come up with. A common-mode choke at the feed point is needed to keep the feedline from radiating. Off-Center Fed Dipole / Windom Antenna This antenna has become quite popular, as the performance is exceptional. The MMANA-GAL model of the K1POO antenna at 8m height shows that the antenna has a more complex lobe structure as the frequency increases. Although I bought an OCF dipole, I am intrigued with his end-fed dipoles (also multi-band). This is a difficult question to answer and there is no one answer which is best for everyone who asks this quest…. The company which sells the antenna says that because the antenna. Just lay it on the ground. It's also ideal for those who want a high performance antenna with world class DX coverage. Wire antennas need to be made a bit long and cut to resonance. This is OCF antenna also known as Windom antenna fed at 19% of one end. A six-band, HF Windom antenna April, 1997 This Windom antenna was marketed in the late 70's and early 80's as Smithe's Windom. Simply the best! CAROLINA WINDOM® 80 Compact™ Half-size, full-performance, full coverage. It will work 80-10 with the built in tuners found in most radios today. An additional discount is available for 1 items. The RadioWavz DX (OCF) Windom is ideal for those of you who do not use a tower and beam. Review (mpn: 160-6 for sale) 160-6 Meter Fed Hf Antenna 200 Watt Ocf Llc. It can be fed with standard 50 ohm coax. Antenna analysis software by Roy Lewallen. The Off-Center-Fed Long-Wire W1FB's Antenna Notebook, 1987, pp. 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. 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. << bam, ybØko/1: OCF Antenna, hal. The correct lengths for the various models will be displayed in the chart. PS: Want to read more about antennas and other amateur radio topics? These books could be of. I recommend, as others have already said, a center fed dipole. 80/40m Long Side 24. No doubt about it, without a good antenna, no matter how good the receiver, you will not hear much of anything. We will post them here on our page and on our website www. 73 m Total 38. 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. An additional discount is available for 1 items. By serendipity, it also covers the 17 and 2 meter bands. Current type 4:1 (200:50 Ohms) BALUN is another product designed for OCF antennas (Off Center Fed) also known as Windom antenna. Като база за тяхното развитие служи антената Windom с кабелно. 80/40m Long Side 24. The page describes a Windom antenna with a 6:1 homebrew transformer. The Maple Leaf Studio offers some excellent antennas for those of us with limited mechanical abilities. This is one of the most rugged and dependable OCF/Windom antennas on the market today. Historically all began with the Windom, a multi-band antenna first described in 1929 by Loren G. No RFI in the town, running 1200 watts from 160 to 10 on an Fritzel FD-4 with AMA 83 balun, nor my homebrew OCF with 1:6 and 1:1 balun, used here on Jota/Joti, holliday etc, both lengthened with an 190 micro Henry coil and 30 feet wire on the short side for 160 meters. The Windom is an Off-center wire multiband Antenna. This is OCF antenna also known as Windom antenna fed at 19% of one end. How well and antenna works is a difficult question to answer. One of the antennas I found was the Windom. However as is normally the case, making an antenna operate on several bands comes with a cost. Carolina Windom, G5RV or convential dipole. No doubt about it, without a good antenna, no matter how good the receiver, you will not hear much of anything. Design and antenna modeling. Balun Designs LLC - When Performance Counts & Quality Matters Model 4115ocf - 4:1 for OCF Dipoles 1. CAROLINA WINDOM® 80 The perfect, high performance antenna. The 4-band Fritzel model FD4 is a special version of a Windom antenna. 2016 topps ufc paige vanzant relic /10 *2 colors* item will be shipped from slovenia with tracking number! unless customer prefere different option. I am considering using an Off Center Fed Dipole or a G5RV or a Carolina Windom. This style windom has a 4:1 balun and is rated for 1500 W. Fritzel FD4 OCF Dipole Fritzel FD4 OCF Dipole The Frizel FD4 Windom is an OCF (Off Centre Fed) antenna that has been around for a long time. 80 and 160m. 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. Add to cart. My first inkling of it was from a 1936 article about an OCF (off-center fed) antenna that was simply a wire that was fed by another wire. 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. Find many great new & used options and get the best deals for Off Center Fed Dipole/ Windom Antenna OCF8010E-3K 80-10 Meters Rated at 3KW at the best online prices at eBay!. Any azimuth or elevation slice can be highlighted. The term off-center-fed (OCF) dipole is preferred. 32 for the short side wire. It was quite noisy, and leaked a ton of RF into the shack, even with the appropriate counterpoise. The homebrew beam design was optimized with AutoEZ. The biggest and best ham radio classifieds on the web! Buy, sell, trade HF and VHF equipment, towers, antennas, rotators and more!. The SWR is generally below 1. The Windom antenna is an off-center fed dipole with an unbalanced coax feedline. Build an effective dipole antenna that needs much less space by adding two loading coils. The windom antenna OCF HF antenna is a multiband antenna wire able to work with high efficiency on all bands from 3. If part of the antenna, feed line or antenna mast come into contact with a power source any type, it may result in serious injury death. WINDOM OCF Antenna 10-160m 1Kw 256ft. The antenna can be mounted as a simple dipole or inverted veeThe OCF-3K40 is complete and ready to install. I have built and used both a full size G5RV and a 80m Windom (OCF) in the past (the same as the Carolina Windom that Radioworks makes), the G5RV being more common on the bands because of its simplicity and cheapness, they both work. The antenna is designed to be fed with 50 or 75 Ohm Coax Cable of most any length with a Balun. Purists would not call this a Windom antenna anymore because of the absence of the single-wire feedline. A windom antenna is a single-wire-fed antenna which is worked against ground. The main category is Multiband Antennas that is about Multiband Antennas. windom 10-160. It was designed to cover 80, 40, 20 15, and 10 meters. Most transmitting antennas link from the top of this page. ocf 160-6 hf windom antenna w/ 4:1 balun and 200' rope sku: $0.