I'm currently Net Control Station (NCS) on the Chew at 10am on Thursdays. The Center-Loaded Off-Center-Fed Dipole (CL-OCFD) was invented and first described by yours truly, Serge Y. I would like to be put on the rooster for DTTN. Stroobandt, ON4AA, in the year 2006. Completely forget any notion you have of an HF dipole or any similar antenna being useful on six meters. Takes up less space. This link contains good info regarding the proper installation and operational characteristics of HF off-center fed dipole / Windom antennas. buck survival knife buckmaster sale. Having done my homework, I decided to go with the Buckmaster 7-band off-center fed dipole rated for 3 kW. Money Back Guarantee ensures YOU receive the item you ordered or get your money back. Our antennas have no external connectors and a. The channels will be available to General and higher class licensees. It's a rather unconventional antenna, but it's getting me on every ham band from 80M to 10M. In production since early 2004; No tuner or counterpoise required, uses just one wire! Quickly switch bands and eliminate a tuner as one more thing to adjust or transport. From Dallas Makerspace. Windom – Similar to the OCFD. In the last year I’ve worked a large part of Europe, Alaska, Hawaii, Australia, Japan, and Tasmania with an off center fed dipole in a “V” configuration hanging about 8 feet in the air in the backyard,. Having done my homework, I decided to go with the Buckmaster 7-band off-center fed dipole rated for 3 kW. Buckmaster 7 Band, 3KW, OCF Dipole Antenna product reviews by real people like you. Cleveland, OH 44092 440-585-7388 1-800-321-3594 Fax 440-585-1024 [email protected] 621 Commonwealth Ave. For many amateur radio operators, a vertical antenna may be the only option they have to put up an HF antenna. Doesn't work on 60m or 160m. , the other is 90 ft. , respectively. You'll have to lookup "dipole" antennas. 160m Inductance-Loaded Shortened Dipole. THE INTERNATIONAL CONFERENCE MATHEMATICAL AND COMPUTATIONAL MODELLING IN SCIENCE AND TECHNOLOGY Izmir-Turkey (August 02-07, 2015) Abstract Book. If you have any suggestions for future CPR items to be shared during our meetings, drop a line to Dave Wickert, AE7TD [email protected] For a few months, now, I have been working, on and off, on 30 meters and I'm up to 46 states by using FT8. 272), and have talked with folks all over the country. Double Din – Car Stereo Receivers Car Audio. It and the Elecraft tuner get along fine, so it serves its purpose (which is. Shop the Largest Selection, Click to See! Search eBay faster with PicClick. de Whereas a Dipole is a half-wavelength long radiator, fed in the Center of two equal length legs, the Off-Center-Fed Dipole (which I prefer to call a WINDOM) is a Dipole whose feedpoint is at a point removed from the center of the antenna. Buckmaster 7 Band, 3KW, OCF Dipole Antenna product reviews by real people like you. Jump to: navigation, search. I am going to talk about two different antenna systems that will meet these goals - an Off-Center Fed (OCF) Dipole and a Vertical Dipole. Study of the Off Centre Fed Dipole Antenna - G8ODE Short Long Feed point The Off Centre Fed Half-wave Dipole The Off-Centre Fed Half-Wave Dipole, more commonly referred to as the OCFD, is very popular because it offers good performance as a multi-band antenna using an antenna matching unit in conjunction with a 4:1 or 6:1 current balun. An off center fed, OCF, dipole is not a magic antenna as some hams have come to believe. T2FD -- The Forgotten Antenna. HF Antennas. Designed to work in a limited space or as the perfect compliment to an antenna farm. What’s more is that they are not logging this information just for the heck of it. A 1:1 balun is generally used for a center fed dipole and a 1:4 balun for off center feed but this is not a very good generalization. Quote:> On page 7-10 of the ARRL Antenna Book 20th Edition, there is a discussion > of "Off-Center-Fed Dipoles". Sooo, when a hot one comes on the packet it takes me a bit to get ready for him. Upon reflection, I think I really didn't act because work consumed me until mid-May. Having fun with amateur radio. Off-Center-Fed Dipole, OCFD, Windom, Whereas a Dipole is a half-wavelength long radiator, fed in the Center of two equal length legs, the Off-Center-Fed Dipole (which I prefer to call a WINDOM) is a Dipole whose feedpoint is at a point removed from the center of the antenna. For the OCFD I used a store bought voltage balun (not current) and a homebrew choke 10' down the the coax from the antenna. I put a 1:1 current choke-balun between the Buckmaster's 6:1 balun and my coax, because I didn't want feedline radiation and since this was something done in the later versions of the Fritzel. They have no external connectors and a permanently sealed white PVC weatherproof center enclosure containing the potted autotransformer acting as 6:1 voltage balun. K1POO 4 Band Off Centre Fed Dipole (40-20-15-10m ) MMANA-GAL K1POO Antenna model's 3D far field results The antenna at 8m height above real ground 5mS/m and dielectric 13, SWR ref 200Ω. It pisses me off that our forefathers fought World Wars to keep us great, and we’ve let our “elected” officials let it go all to hell due to corporate greed and lining their own pockets. com, Hrdlog, Eqsl,. Buckmaster Off-Center-Fed OCF Dipole - Multi-Band Antenna. Help build our links library by submitting your favorite links. It works quite well despite the power limitation of 300-350 watts. Di-pole Antenna. I wanted to make a all band antenna without the. This antenna is available on eBay and reviewed on eHam. The OCF dipole does. To me it's too much hassle, can't be bothered, fed up with Europe telling me what to do while there's PLENTY they should first look into for people making their crust every day. (Maybe high power too. Off Center Fed (OCF) Dipole Antennas - Ham Radio Site - [HOME] Dj0ip. The center of the antenna should not be higher than λ/4. Some might say that vertical antennas should be on this list as well but I find them to be more complex to install properly and therefore are not, in my estimation, the best first antenna for a new HF operator. Buckmaster OCF Dipole Antenna have been working great qrp. Designed to work in a limited space or as the perfect compliment to an antenna farm. Quickly switch bands and eliminate a tuner as one more thing to adjust. Completely forget any notion you have of an HF dipole or any similar antenna being useful on six meters. Eliminate send/receive tuner loss. I went with the Swiss Army Knife of base rigs, the Kenwood TS-2000, plus a Buckmaster 7-band off center fed dipole. I studied the information on the Buckmaster web site about the antenna and was intrigued that a single dipole antenna could be naturally resonant on 80, 40, 20, 17, 12, 10 and 6M without a tuner. When I received the Yaesu FT-1000MP Mark V I was unimpressed with it's receive capabilities, even strong signals sounded noisy. Included: Antenna wire with center box 88' on one side, 50' on other side. Gladwell and S. The Hy Power OCF80 80 meter version shows a positive SWR dip on the following bands: 6, 10, 12, 17, 20, 40 and 80 meters. Antenne 3: 30 MTR Mono Band Dipole. Vertical, off-center-fed, half-wave antenna features single support. The Par End-Fedz ® are a full length half wave dipoles, but with an important difference. New MFJ Off-Center Fed HF Wire Antennas MFJ recently released two more antennas in their series of off-center fed dipole (OCFD) antennas. DX Engineering carries six of Buckmaster's acclaimed multi-band OCF dipole antennas. On the other hand an off-centre-fed. I also run a home built Offset Fed Dipole, cut for 160 Meters About 90 ft. OCF antennas are very convenient as they will allow multiple bands of operation with a simple wire antenna which is fed off center with a 4:1 OCF Current balun with built in feed line choke,. Some might say that vertical antennas should be on this list as well but I find them to be more complex to install properly and therefore are not, in my estimation, the best first antenna for a new HF operator. Radio works™ off-center-fed dipole Open document Search by title Preview with Google Docs Insulator 1 insulator 2 there are many versions of the off-center-feed dipole that said, the ocfd has a important place in your or ocfd being sold. It works quite well. I just installed a Off Center Fed dipole where one leg is 45 feet in length and the other is 90 feet long. All antennas are a compromise for multiband use, don't let others talk you out of trying what you want to do. The MFJ-2016 covers the low end of 160 meters and the 75 meter SSB DX window. MFJ Power-Lite Off-Center Fed Dipole Antennas $79. With a ladder line dipole, no pruning is necessary. Paypal preferred Used periodically for about 2 years and performs like new without any problems or issues. 34 dBi, which just beats out the half wave dipole (and this makes sense, since the off center fed dipole/Buckmaster is at the same height as the half wave but is twice as long). <Off-Center-Fed (OCF) Dipole / Windom アンテナ> Buckmaster World wide DX, multi-band, no tuner required, Off-Center-Fed (OCF) Dipole Antennas Windom off center fed AI4JI's Off-Center Fed Dipole / Windom Antenna 3. If using a mast, PVC or fiberglass is preferred. Quickly switch bands and eliminate a tuner as one more thing to adjust. A center-fed half-wavelength wire antenna cut for 7. 15 meter long) Kenwood TM-V708 A VHF/UHF Kenwood TM-D710GA VHF/UHF with APRS in each of the cars See www. I'm in an apartment situation with 10 floors, and, I'm on the 8th floor, 64 feet off the ground, and I have a 39 feet long balcony, 39 feet! I love that length. Only at eHam. Eliminate send/receive tuner loss. cage vertical dipole. 3 > feet (a bit over 1/3 wavelength) from one end with a 4:1 balun, then coax. Secret Morse Code messages in music. – Do we aggressively reward and promote the people who have the biggest impact on creating excellent Wireless Communications services/products? – Can Management personnel recognize the monetary benefit of Wireless Communications? Array gain Critical. While researching various antenna designs on the web, I ran across a 7-band “off-center fed dipole” made by Buckmaster. 5' roof mount tower, RT-424 with MC-10 mast adapter VHF/UHF Mobile. I have built a G5RVjr (40m-6m) and an off center fed dipole variant called the New Carolina Windom. The 4-Band antennas are OCF (off-center-fed), with a 23 foot leg and a 45 foot leg, totaling 68 feet. The antenna truly is "no tune" on. Included: Antenna wire with center box 88' on one side, 50' on other side. Good Hope Rd. off center fed dipole antenna. Construct a multi-band off-center-fed (OCF) dipole covering the 40, 20, 15, and 10 meters amateur radio bands, and possibly the 6 meter band (but that is considered a bonus band, outside the main project objective. Study of the Off Centre Fed Dipole Antenna - G8ODE Short Long Feed point The Off Centre Fed Half-wave Dipole The Off-Centre Fed Half-Wave Dipole, more commonly referred to as the OCFD, is very popular because it offers good performance as a multi-band antenna using an antenna matching unit in conjunction with a 4:1 or 6:1 current balun. That makes the legs of a 270 ft. Other ideas for wire antennas could include an off center fed dipole, or a horizontal or vertical loop. , a 2-meter vertical, a 40-10 Meter Off Center Fed (OC F) Dipole, and a 10-meter rotatable aluminum dipole. Engineered for maximum performance with a 14 Gage wire to our coaxial mono band double bazookas of RG11. balun 30 ft. Only at eHam. Before the meeting Don K6GHA had mentioned the purchase of a Buckmaster multi-band Off-Center-Fed dipole which we discussed briefly. EOC Improved Roof Top Off Center Fed Dipole June 1 2019 Data Capture Version 1. I’m not so optimistic though. The efficient off-center fed dipole antennas are made from high-quality components, so they can provide years of trouble-free operating. I am going to talk about two different antenna systems that will meet these goals - an Off-Center Fed (OCF) Dipole and a Vertical Dipole. The Par End-Fedz ® are a full length half wave dipoles, but with an important difference. 0 out of 5 stars 14. , the other is 90 ft. Re: [TenTec] It's getting cold. base of a short vertical, in order to facilitate the use of a remote, coax fed tuner. Or, use two of them to raise the ends of your Inverted-V dipole. Once I scoped out my yard and found a path to avoid most of the trees, we had an antenna raising party, complete with four spud launchers. What’s more is that they are not logging this information just for the heck of it. I just installed a Off Center Fed dipole where one leg is 45 feet in length and the other is 90 feet long. Changing the feedpoint location only changes the impedance, and what bands you might be able to "load up" easier. this is a great antenna for a modest base station or for new general class hams -- will get. 5 mm lateral and 3. Off-Center-Fed(OCF) Dipole BUCKMASTER 8バン… - ヤフオク! WのOff-Center-Fed(OCF) Dipoleアンテナです。詳しくは、下記のURLをご覧ください。. Radio works™ off-center-fed dipole Open document Search by title Preview with Google Docs Insulator 1 insulator 2 there are many versions of the off-center-feed dipole that said, the ocfd has a important place in your or ocfd being sold. (Maybe high power too. Dipole Cousins Inverted V - Only needs one support. On the other hand an off-centre-fed. Milwaukee, WI 53223 414-358-0333 1-800-558-0411 Fax 414-358-3337 [email protected] 28940 Euclid Ave. Feeding an Off Center fed Dipole with a current balun takes care of the common mode stray currents and also provides a phase stabilization advantage over simple coax feed. Let's revisit the Buckmaster at 32 feet with the ends vertical to make like phased vertical pair. This year we built an 80/40/20/10 and we suspended a 15m double-bazooka below it. or no tuning. Click here to submit a link. Di-pole Antenna. Amateur Radio. End fed longwire or random wire antenna. de Whereas a Dipole is a half-wavelength long radiator, fed in the Center of two equal length legs, the Off-Center-Fed Dipole (which I prefer to call a WINDOM) is a Dipole whose feedpoint is at a point removed from the center of the antenna. The OCF is hand crafted with the best materials. Then using more rope tie the ends off at least 8-10 feet high on 2 other trees. Off-Center-Fed (OCF) Dipole Antenna for the National Weather Service. These are basically similar but vary in small details. Dipole Easy and cheap to build, can be made with small gauge wire Balun. I just installed a Off Center Fed dipole where one leg is 45 feet in length and the other is 90 feet long. Last year on Field Day I was able to use an OCF dipole for the first time, and I enjoyed the quick bandswitching it allowed, so I thought I’d try and find a good OCF dipole for use while in the field. possible disappoint with the Off-Center-Fed dipole. Buckmaster Off-Center-Fed OCF Dipole - Multi-Band Antenna. DX Engineering carries six of Buckmaster's acclaimed multi-band OCF dipole antennas. “Unless one really needs or aspires to 160m & max efficiency, the Off-Center Fed Dipole (OCFD) can also be literally half that size. While researching various antenna designs on the web, I ran across a 7-band “off-center fed dipole” made by Buckmaster. on the long leg. The trick to the off center dipole is that assuming it is balun fed, either wire can become the 'hot' depending on the resonance required on a particular band. I just installed a Off Center Fed dipole where one leg is 45 feet in length and the other is 90 feet long. 0 out of 5 stars 14. Vertical, off-center-fed, half-wave antenna features single support. Elevation is about 38 ft. The OCF dipole does. Additional equipment to round out the "shack":. Buckmaster 7 Band, 300W, OCF Dipole Antenna product reviews by real people like you. 5 8 80m dipole. Fortunately, there are many good products on the. A center-fed dipole is a resonant antenna at its fundamental frequency* (f0) and at 3f0, 5f0, 7f0 and so on, whereas an off-center-fed dipole is resonant at f0, 2f0, 4f0, 8f0, and its bandwidth (apparently) is greater. Elevation is about 38 ft. The Coffeyville Daily Journal from Coffeyville, Kansas · Page 2 Publication: The Coffeyville Daily Journal i Location: Coffeyville, Kansas Issue Date:. It will operate on 80, 30, and 17 meters but requires a tuner. A feed line is attached to an optimum point along the dipole by a. Antenna: I'm using a Buckmaster off-center fed dipole, about 60 feet off the ground. 00 for this contraption. There are no complicated wires or losssy coils to deal with. The "vertical radiation" is more sales hype than something useful. One end goes straight into the rig, often with no feedline, and the other end in the air attached to something as high as you can find. At our monthly club meetings we have a short 5 minute “look-see” at new cool products (or old products that are still cool). I think the price point was a bit north of 300 bucks. It's also ideal for those who want a high performance antenna with world class DX coverage 80, 40, 20, and 10 meters. On the web, I ran across a 7-band off-center fed dipole made by Buckmaster. I spend a bit of time on 72Chew. Buckmaster Off-Center-Fed (OCF) Dipole - Multi-Band Antenna. I have an MFJ 902 6 through 80 meter antenna tuner. Engineered from the ground up, innovative new antennas by K1BQT break traditional OCFD design barriers to deliver wider bandwidth, lower SWR, solid gain, and full-frequency agility without a tuner!. My current HF station is comprised of an Icom 7300 HF radio, seven band off center fed (OCF) Buckmaster dipole, and six band MFJ 1796 vertical. Notice on the dipole plot above that the lowest SWR occurs at 3. The RadioWavz DX (OCF) Windom is a off center fed (OCF) dipole antenna that exhibits outstanding performance on all bands. One is called The Carolina Windom and another is called the Buckmaster OCF Dipole. He said my signal was "considerably stronger" on the OCF dipole than the end-fed. That makes the legs of a 270 ft. Buckmaster 7 Band, 300W, OCF Dipole Antenna product reviews by real people like you. A center-fed half-wavelength wire antenna cut for 7. A much better alternative to any of these three antenna designs is running the open-wire line from the center of a dipole all the way to a balanced antenna tuner, which was recommended by Louis Varney, G5RV himself. The only permitted mode will be upper-sideband USB phone, and 50 W ERP is the maximum power allowed. October 2007. Feed point impedance is high and requires a 4-1 balun. into “lobes” at distinct take off angles. My favorite is what's called an off-center-fed (OFC) dipole. Some might say that vertical antennas should be on this list as well but I find them to be more complex to install properly and therefore are not, in my estimation, the best first antenna for a new HF operator. Some people might take issue with using the word "dipole" because the antenna has more than two opposing polarities along the length, but in my opinion it is perfectly fine. Product Description. folded dipole. Instruments can be stored on one flash. , the other is 90 ft. A center-fed half-wavelength wire antenna cut for 7. 110 feet of Advanced Digital Cable RG-213 50 ohm coaxial cable. For a few months, now, I have been working, on and off, on 30 meters and I'm up to 46 states by using FT8. The antenna is placed in the shape of an inverted V, with its two transmission lines or legs bent towards the ground making 120° or 90° angle between them. 3 > feet (a bit over 1/3 wavelength) from one end with a 4:1 balun, then coax. In the meantime the “Thundering Herd” has already gathered. segments to the bottom of the pole. ’ 16) You can paint antennas without degrading their performance. We used the good quality antenna rope to hang the balun over a tree limb, and. Buckmaster 7 Band, 3KW, OCF Dipole Antenna product reviews by real people like you. It would work great. OCF antennas are very convenient as they will allow multiple bands of operation with a simple wire antenna which is fed off center with a 4:1 OCF Current balun with built in feed line choke,. 8 kHz-wide channels with center frequencies of 5332, 5348, 5368, 5373 and 5405 kHz. I studied the information on the Buckmaster web site about the antenna and was intrigued that a single dipole antenna could be naturally resonant on 80, 40, 20, 17, 12, 10 and 6M without a tuner. The Windom was an 80-metre antenna. multiband hf dipole antenna. About the Buckmaster OCF Dipole. 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 shows a dipole 130 feet long, fed 45. Click here to submit a link. Обе половинки антенны разной. 030 High Density PE Black Jacket. They are based on the 1/2 wave dipole which only has a workable impedance at 1/2 wave. Our (SCARC – Ski Country Amateur Radio Club) makes great effort to help new folks enter the radio hobby in all its dimensions. Aug 24, 2018- Explore kevinpinscoe's board "Dipole and Wire Antennas", followed by 288 people on Pinterest. I am going to talk about two different antenna systems that will meet these goals - an Off-Center Fed (OCF) Dipole and a Vertical Dipole. The green Heavy Duty poles are sturdy enough to safely support the center of a light weight HF dipole and the accompanying feedline (RG-8X, RG-58, 300/450 ohm twinlead (see Special Notes below). I enjoy the DTTN and have fun with the other ham's. They wanted $225. I do not believe the Buckmaster design does this, it is fed off center at a 300 ohm point with a 6:1 balun, per the. Antenna: I'm using a Buckmaster off-center fed dipole, about 60 feet off the ground. Back to 40 meters. K1POO 4 Band Off Centre Fed Dipole (40-20-15-10m ) MMANA-GAL K1POO Antenna model's 3D far field results The antenna at 8m height above real ground 5mS/m and dielectric 13, SWR ref 200Ω. Gordon Gibby. A simple dipole cut for six can be just fine when E skip is open or for casual local operation. end fed dipole. The efficient off-center fed dipole antennas are made from high-quality components, so they can provide years of trouble-free operating. I just installed a Off Center Fed dipole where one leg is 45 feet in length and the other is 90 feet long. buckmaster antennas handheld cb radio antennas and antennas conferences stacking uhf tv antennas 5. Center height, 27 ft end height greater signal strength by using the ZS6BKW version of a ladder line fed dipole. The Titan offers broad, continuous frequency coverage in a no tune, easy to assemble format. Off Center Fed Radiation Pattern. When I received the Yaesu FT-1000MP Mark V I was unimpressed with it's receive capabilities, even strong signals sounded noisy. Length approximately 135 feet. This year we built an 80/40/20/10 and we suspended a 15m double-bazooka below it. netGoogle Translate: The 4-Band antennas are OCF (off-center-fed), with a 23 foot leg and a 45 foot leg, totaling 68 feet. Antenne 2: Dipole element from fritzel fb33. The antenna shown covers 80, 40, 20 and 10 meters with 15 meters and WARC bands only available with an antenna tuner and. How well and antenna works is a difficult question to answer. Aug 24, 2018- Explore kevinpinscoe's board "Dipole and Wire Antennas", followed by 288 people on Pinterest. New Page Coaxial dipoles for FM. The all band doublet antenna is nothing more than a 1/2 wave dipole cut for your lowest operating frequency and fed with twinlead, ladder line, open wire, etc to a tuner that will accept a balanced line connection. segments to the bottom of the pole. Alpha Delta Model DX-OCF Off-Center-Fed (OCF) Dipole 300 Watt antenna (3000 watt Model DX-OCF-HP may vary slightly) Center height 32 feet, end height 8 feet Erected as an inverted "V". Having done my homework, I decided to go with the Buckmaster 7-band off-center fed dipole rated for 3 kW. The antenna is the Buckmaster 300 watt 7 band (offset center fed) OCF dipole. Having done my homework, I decided to go with the Buckmaster 7-band off-center fed dipole rated for 3 kW. ARRL June VHF Contest 2018 Jun 9 Comment Summary. nikon buckmaster 3-9x40 manual. Several companies sell a multiband dipole. It would work great. DX Engineering carries six of Buckmaster’s acclaimed multi-band OCF dipole antennas. 12 dbi antennas luxul antennas antennas for 500 khz shunt fed grounded antennas antennas for nextel i730 microwave antennas for wifi wireless booster antennas long range hd antennas beartracker scanner antennas military surplus antennas indoor. net is a Web site dedicated to ham radio (amateur radio). First of all, a Ruthroff balun which is a voltage type is often preferred for a center fed dipole because it carries a DC ground which helps drain static and provides a debatable amount of lightning protection. OCF-1: Application for Accident Benefits. net, Buckmaster's amateur radio supplies website. This review of NI4L's 7 band OCF dipole was prompted by my needing a quick deploy multiband antenna for both field day, and for RVing. If so any tips? Need to get on 160 meters with something. The chart below speaks for itself! Click here for 7 band, 135 ft. Product Description. Due to the fact that one wire leg of the antenna is shorter than the other, the OCF is more convenient to erect than a regular center fed dipole. 15) Everything you would ever need to construct wire antennas can be sourced from “The Wireman”. HF Antennas. It is ideal for those of you who do not use a tower and beam. I install my new Maple Leaf Studio Off Center Fed Windom Antenna on a 37 ft. 20 meter trap dipole. Buckmaster OCF (Off-Center Fed) Dipole Antennas are a very simple way to get on the air and work multiple bands… quickly! Order yours from DX Engineering. Product Description. The station at home is a Yaesu FT-5000. 86 feet long. A tuner may be required for 160. Next In popularity would likely be the commercially available sloper antennas and trap dipole. This antenna is 240 feet long and is rated at 1500 Watts CW/SSB. All off-center-fed dipoles will exhibit some feedline radiation. Off-Center-Fed(OCF) Dipole BUCKMASTER 8バン… – ヤフオク! WのOff-Center-Fed(OCF) Dipoleアンテナです。詳しくは、下記のURLをご覧ください。. The Center-Loaded Off-Center-Fed Dipole (CL-OCFD) was invented and first described by yours truly, Serge Y. 5 8 80m dipole. What others are saying 2 Meter Break-a-way J-Pole Antenna - Well worth the price! Bought one for my VHF go box. OCF to hit the 160m band. These are basically similar but vary in small details. My current HF station is comprised of an Icom 7300 HF radio, seven band off center fed (OCF) Buckmaster dipole, and six band MFJ 1796 vertical. I’m currently Net Control Station (NCS) on the Chew at 10am on Thursdays. Each wire is swagged with 1/8" aluminum double ferrules-sleeves, at the balun and the ends. Here is my first attempt at an article. Some might say that vertical antennas should be on this list as well but I find them to be more complex to install properly and therefore are not, in my estimation, the best first antenna for a new HF operator. Carolina Windom 80, when I came across some references to the Buckmaster Off Center Fed (OCF) 7 band dipole. DX Engineering carries six of Buckmaster’s acclaimed multi-band OCF dipole antennas. I much prefer something like a well-designed off center fed dipole with current/voltage baluns and the resullting abilaity to work reasonably well across wide swaths of the spectrum --- or an auto tuner and a balanced line fed random dipole. One is called The Carolina Windom and another is called the Buckmaster OCF Dipole. Six adult rats were anaesthetized with a mixture of ketamine (1 mg kg −1) and xylazine (0. It works quite well despite the power limitation of 300-350 watts. second hand as new buckmaster off-center-fed (ocf) dipole multi band antenna 7 band does 75/80, 40,20,17,12,10 and 6 meters no tuner required 3000kw power handling. HRO Discount Price: $369. This antenna is 240 feet long and is rated at 1500 Watts CW/SSB. The OCF antenna will be suspended on poles 20-30 ft above the fence line. I do not believe the Buckmaster design does this, it is fed off center at a 300 ohm point with a 6:1 balun, per the. Balun Designs LLC - When Performance Counts & Quality Matters Baluns for Multiband Off Center Fed Dipoles. document titled Antennas, "The Aerial Here Is is about Urban and Civil. Quickly switch bands and eliminate a tuner as one more thing to adjust. I have an MFJ 902 6 through 80 meter antenna tuner. It is ideal for those of you who do not use a tower and beam. You don't even care how long it is. A center-fed dipole is a resonant antenna at its fundamental frequency* (f0) and at 3f0, 5f0, 7f0 and so on, whereas an off-center-fed dipole is resonant at f0, 2f0, 4f0, 8f0, and its bandwidth (apparently) is greater. Dipole Easy and cheap to build, can be made with small gauge wire Balun. An off center fed, OCF, dipole is not a magic antenna as some hams have come to believe. I have built a G5RVjr (40m-6m) and an off center fed dipole variant called the New Carolina Windom. 0 uses a non-contacting ultrasonic sensor mounted over a flume or weir to measure flow. Once I scoped out my yard and found a path to avoid most of the trees, we had an antenna raising party, complete with four spud launchers. Before the meeting Don K6GHA had mentioned the purchase of a Buckmaster multi-band Off-Center-Fed dipole which we discussed briefly. The performance is very good across the HF bands and requires little or no tuning.