What became perhaps the most popular multiband Windom design of all, was the German-made Fritzel FD4 antenna, described by the late Dr. KEY 1. 7-m in the 1960s. 5m so chesen that the may not only r t radio Apart the in no other For this they and weather The highlight of this antenna is the balun, THE OCF FD4 (FD3) WINDOM ANTENNA FD4 (80/40/20/10 m) The 4-band Fritzel model FD4 is a special version of a Windom antenna. fd4_hg7wav. Bandwith 150Hz. Vous connaissez les FD4/FD3 ? vous connaissez les loop ? vous connaissez les halo ? je vous propose sur une idée de G8ODE , dérivé de l'antenne "Cola" l'antenne "OLA" pour Open Loop Antenna (feed off center) une FD4/FD3 a une impédance de l'ordre de 200/300 ohms , si cette antenne est replié en triangle ou carré son impédance descends. 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. 7-m in the. I built it using 3/4 inch copper pipe with rg-8 running up the center. THE OCF FD4 (FD3) WINDOM ANTENNA 19 may 2011. This link is listed in our web site directory since Thursday Jun 23 2016, and till today " HF Linked Dipole Antenna Calculator " has been followed for a total of 1468. FD4 (80/40/20/10 m) The 4-band Fritzel model FD4 is a special version of a Windom antenna. The output looks a bit “interesting” and it could probably use a Band Pass Filter, but the signal is in fact there. It is my back-up HF antenna, and one that can be used on 40 meter round table rag chews where a beam may not be ideal. The following plot shows the measured SWR of an FD4 antenna from 3 MHz to 30 MHz with about 20 m of RG58U feeder line. Alpha Antenna 2-20M Portable Vertical Antenna for VHF & HF. 1971 - Dr. So here at my home there is also room for improvement. FD4 Antenna switched as T-Antenna, Datong Konverter up to 28 MHz, Kenwood TS 480 for receive, using CW. See you again, friends . receivers, city env. The asymmetrical dipole antenna developed and described by Windom (W8GZ) in 1929 has been used by many amateurs for many years as the FD4. 35. It is still available from They continue the Fritzel antenna business. 26 Inch High Gain Antenna (Original Baofeng GT-3/GT-3TP Antenna) 1 Year and 6 months Manufacturer's Warranty. A shorter version FD3 for 40-10m operation is also developed. TA4AU. Le petit plan de masse est trés pratique "radians courts" :gain de place au sol par rapport aux radians d'une verticale 1/4 d'onde. Furthermore, none of these designs offered 30 m. I recently purchased the 5KW FD4 from an MWF-SERVICE. Operating HamSphere 4. For the PAL8010OCF, the impedance is very well behaved in a limited, easy to match range throughout the 1-54 MHz range and, in fact, that antenna also works very. Fritz Spillner, DJ2KY, in "Die FD4-Windom-Antenne," QRV, Stuttgart, 25, December 1971, pp. Perhaps the most popular multi-band “Windom” or more accurately, OCFD was the German-made Fritzel FD4 antenna, described by the late Dr. Hi all, I bought the Mini1300 from China and Software says Version1. It is an off centre fed dipole, with 10 feet of vertical radiator. A shorter version FD3 for 40-10m operation is also developed. (5) Alpha Antenna HOA Buster for 10-80 meters. Mivel valószínű, hogy egy sávon se félhullám hosszúságú, ebben az esetben, hossztól, frekvenciától függő impedancia transzformációt végez. Since it is not possible during the local conditions (small premises with a central standing family house in a suburban area) to have a single tower with a big beam I was beginning to watch out for a more suitable (more "compact") antenna. Add to Cart. It is a half-wave long on the lowest frequency, and is fed from a coax cable through a transformer inserted in. Free Shipping. A design for Ka-band satellite communication antenna in earth station is introduced. New Carolina windom antenna - PDF file by QRP Expressions by By N. Rating & Comments (0) Tags (7) Alternate Versions. 5 i 7 MHz i neke multiband vertikalne antene za gornje opsege. Belakangan, karena di feed di titik yang melèncèng dari tengah bentangan antenna (OFF-center) seperti yang kemudian umum dilakukan, maka rancangan ante nna macam ini lantas disebut sebagai off-center fed atau OCF antenna. This garbage disposer offers a simple, efficient, and economical way to dispose of food waste in restaurants, hotels, or hospitals serving up to 1000 meals per day, or cafeterias, commissaries, or schools. Fritzel FD4 antenna, described by the late Dr. 3V microcontroller or a 5V microcontroller but it should have an SPI port. > To: <[email protected] in the 1960s. 5m (15 foot) mast of about 5cm (2 inch) diameter, that also serves as the outside of a low-loss coax feedline. isolators. It was designed to cover 80, 40, 20 15, and 10 meters. vy 73 de Ron DG1HVW F4ATM Laurent schrieb: Hello, i need all lenghts of wires and balun type ( 1/6 or 1/4 )to make a Windom antenna 10m to 80m. 8-m and 27. A while back a ham in the Far East set up a Visa account system where you sent him a donation via credit card and he used that to mail back a hard card qsl. If the installation site permits, a dipole antenna in a vertical "Vee" configuration has radiation patterns suitable for NVIS applications -- and can have useful low-angle radiation, as well. 5m. 13 votes, 20 comments. COM in Germany because the exchange rate for euros was low. Installation de l'antenne filaire FD4 de chez Fritzel sur un pylône de 6 mètres en V inversé la rendant omnidirectionnelle. It cover. This kind of antenna uses splash plate feed based on ring-focus antenna. Full Member; Hozzászólások: 126; Karma: +73/-2; G7FEK antenna 80 méterre. As at the way things are now all that will happen is Olivia will get a number of FT8 stations annoyed. It had the same dimensions as the VS1AA multiband Windom antenna, but fitted with a 300Ω balun at its feed point and-fed over coax. 3 dB gain, incl. The Carolina Windom is described in (Straw 2007) who attributes it to Edgar Lambert (WA4LVB), Joe Wright (W4UEB), and Jim Wilkie (WY4R) who published a variation on the ‘original' Windom. $99-199. One would argue that the stations worked would simply mail some funds to these DXpeditions to offset the lost income included with QSL requests. hello, 13,5m; 27,5M and a 1:6 balun. Belakangan, karena di feed di titik yang melèncèng dari tengah bentangan antenna (OFF-center) seperti yang kemudian umum dilakukan, maka rancangan ante nna macam ini lantas disebut sebagai off-center fed atau OCF antenna. Ako bi već moralo, onda može biti zgodna kombinacija ukrštenog dipola za 3. As low as: €240. 7 - Center-fed antenna one and one-half wavelength long (A) folded into a three-quarter-wave folded dipole (B and C). A. Belakangan, karena di feed di titik yang melèncèng dari tengah bentangan antenna (OFF-center) seperti yang kemudian umum dilakukan, maka rancangan ante nna macam ini lantas disebut sebagai off-center fed atau OCF antenna. 00 /Each. What we know. But you can always drive out to a far away place, set up an. In this study, a compact 2 × 2 circularly polarized (CP) sequentially rotated (SR) dielectric resonator antenna (DRA) array operating in the IEEE 802. For a monoband antenna, connect the. About Windom Antenna with 4:1 balun The resource is currently listed in dxzone. This is a pity, because most hams would put up a wire antenna especially for the lower bands where beam antennas are more difficult to erect. ZS6BKW ANTENNA 22-may-2022. The Fritzel FD4 antenna becomes more popular in Europe and N. 03. Coax extension2020-06-21 : Tried 6 m with my IC-7300 and a FD4 antenna. 7-m in the. The windom antenna can also be hung as a. Success, after several years, I finally manage to get out of the block of flats and into a family home, and I would like to replace CB with something more interesting, e. The graphic below shows its performance on the 40/80/160m bands for the conditions shown there. Visit my web site: The Fritzel FD4 antenna is a classical antenna in our series of HS4 Legendary Multiband Wire Antennas. Today, many radio amateurs are using multiband Windom antennas with more thanTHE OCF FD4 (FD3) WINDOM ANTENNA FD4 (80/40/20/10 m) The 4-band Fritzel model FD4 is a special version of a Windom 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. In addition, an R6000 has two separate traps for 12 and 17 m, while the 10 and 15 m traps of a. The newer baluns are suited for more power, output 700 W/CW and 1400 W/SSB. Find many great new & used options and get the best deals for PAC Aai-fd4 Rear-seat AUX Input for Select Ford Lincoln Mercury 2004 - 2010 at the best online prices at eBay! Free shipping for many products!. 0: We discuss Antennas, DX'ing, Calling CQ, and other Topics. 8 m en 27. It is a modularized Amateur Radio Transceiver where operators build their own radio using plug-ins and virtual antennas. . This link is listed in our web site directory since Sunday Jul 29 2007, and till today "Windom Antenna with 4:1 balun" has been followed for a total of 8010 times. EN. FD4 antenna, fent mérve a kábelhossz beszámításával. 0 Extras: Using the Editor to Customize Your Transceiver. Fritz Spillner, DJ2KY, in 1971. Searching for Fritzel Windom (Fritzel in business?) 4. VU2NSB OmniDX antenna (11m) VU2NSB OmniDX Antenna series is a very s. The Fritzel FD4 antenna becomes more popular in Europe and N. It covers 7 bands, 10-12-15-17-20-40-80m. See physical description below. The end-fed energy is less than the center-fed. This can overload the receiver, especially on 40 m here in Europe, with a lot of broadcast stations. Fritz Spillner, DJ2KY, in 1971. It is a long half wave on the lowest frequency and is powered by a coaxial cable through a transformer inserted in the wire to a third from one end. The Windom - Off Centre Fed Half Wave Dipole Antenna. • Radioddity's limited warranty applies to all BRAND NEW items sold by radioddity. Belakangan, karena di feed di titik yang melèncèng dari tengah bentangan antenna (OFF-center) seperti yang kemudian umum dilakukan, maka rancangan ante nna macam ini lantas disebut sebagai off-center fed atau OCF antenna. I suggest that new frequencies be promulgated, a few KHZ further away from FT8 on the popular bands , such as 40m, 20m 17m 15m. I0JXX 432 MHz Yagi antennas. -V 80. 460. . The following plot shows the measured SWR of an FD4 antenna from 3 MHz to 30 MHz with about 20 m of RG58U feeder line. THE OCF FD4 (FD3) WINDOM ANTENNA 19 may 2011. I still young so I thinks this is normal, didn't we all start small. One would argue that the stations worked would simply mail some funds to these DXpeditions to offset the lost income included with QSL requests. A shorter version FD3 for 40-10m operation is also developed. Available in: Asia. click here to follow the link to The FD4 (FD3) Windom Antenna. DL1JM did likewise. The system has an impedance of 70 - 100 Ohm and for connection. It kind of works for 160, 80 and 40 meter. THE OCF FD4 (FD3) WINDOM ANTENNA FD4 (80/40/20/10 m) The 4-band Fritzel model FD4 is a special version of a Windom antenna. 1971 - Dr. 13-20 describes a modified VS1AA OCFD with a 4:1 balun connected to a coaxial feeder. I still young so I thinks this is normal, didn't we all start small. 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. . TrademarkElite is the U. Just need an antenna. 1971 300 Ω 41. As low as: €75. SWR is actually better with 300-ohm transmitting line than with the 450 ohm line normally used. Contact. 80,40,20,17,12,10m Seperate parts for balun, isolator, wires. 50 m 32. Add to Cart. America. Fritzel FD 4 Multiband Antenna Reviews Home Reviews For: Fritzel FD 4 Multiband Antenna Category: Antennas: HF: Verticals; Wire; Loop eMail Subscription Registered. com Home Mapsite Add Link. 4-5 meter. Anteny SP1BKS - Antenna manufacturer from Poland, produce dipole wire antennas, W3DZZ FD4 Windom and long wires, baluns, dealer for toroids and connectors managed by Leszek Mlynarczyk SP1BKSSubject: 20 meter antenna project. The plot shows the current distribution on a 42 m long FD4 Windom antenna for the frequencies 80, 40, 20, 17 and 10 m. Coaxial Cable P R O D U C T S P E C I F I C A T I O N LDF4-50A Standard coaxial cable, 1/2", 50 ohm foam HELIAX (Wideband from 0. I have it mounted flattop up about 45 feet. jpg (228. New. This has also been the case in Germany. > antenna is no longer made. incl. Furthermore, none of these designs offered 30 m. I just checked my EU1KY Analyzer on the spectrum analyzer. Unlike typical antennas, this is a non-resonant, Off Center Fed Dipole (OCFD) antenna. Tu je smješten balun 1:6. A shorter version FD3 for 40-10m operation is also developed. but nobody does receive me. Hi all, I bought the Mini1300 from China and Software says Version1. The Fritzel FD4 antenna is a classical antenna in our series of HS4 Legendary Multiband Wire Antennas. The dipoles are cut for roughly 6. If it had been a Philips crimped on Eyelet that would have been better. 204 - Low Radiation Angle Full-Wave Loop Antenna for 80m. 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. $1,909. Item number # 425fd42003. MHz 4. Fritz Spillner, DJ2KY, in "Die FD4-Windom-Antenne," QRV, Stuttgart, 25, December 1971, pp. Today’s versions, based on the original Windom, include the common OCF and Carolina. So far no one has rated yet, so be the first to rate. Both of these proved toDe az FD4 nem egysávos antenna és a kábel már korábban felkerült a helyére. Belakangan, karena di feed di titik yang melèncèng dari tengah bentangan antenna (OFF-center) seperti yang kemudian umum dilakukan, maka rancangan ante nna macam ini lantas disebut sebagai off-center fed atau OCF antenna. A shorter version FD3 for 40-10m operation is also developed. S. 1971 - Dr. The windom antenna that I'm going to tell. post 26 Apr 2023. 80-10 meter OCF antenna layout. For the PAL8010OCF,. 65m+17. 5. But for a "real" FD4 the RF transformer should have 4:1 or as some say 2:1 when the height above ground is small. Add a comment. 1x Radioddity RA-FD4 8. Very close to the 300 Ohm impedance of a Windom antenna such as the system used in Fritzel's FD3 and FD4 antennas. ). 1971 - Dr. Mire jó még a Smith diagram segítségével mért eredmény? Ha ez pl. Fritz Spillner, DJ2KY, in 1971. This link is listed in our web site directory since Tuesday Jul 22 2008, and till today "The FD4 Windom antenna" has been followed for a total of 3736 times. This result suggests that sequences outside the C and GMR35H08 elements restrict fd4/fd5 expression to the ventral imaginal discs. This Windom antenna was marketed in the late 70's and early 80's as Smithe's Windom. Military AS-2259/GR There are a number of different NVIS antenna plans on the internet that can be adopted to amateur radio use. My HF Antenna Fritzel FD-3. But since the most common and simple design is a trx-coaxial antenna, let’s talk about such an antenna design . Add a comment. It covers 7 bands, 10-12-15-17-20-40-80m. Observations: Both the end-fed and center-fed antennas operate just fine without any additional conductors or feedlines. Fritz Spillner, DJ2KY, in 1971. Below 70 Degrees the radiators start to become parallel to each other and signal canceling will start to occur. More bandwidth can be obtained with the rolled up ribbon stub system («fig). Fritzel. The ClearStream Flex is larger and pricier than the ClearStream Eclipse. 52m long ( TT, October 1972 and ART): Fig 5. com in a single category. Fritzel FD4 antenna, described by the late Dr. America. America. 205 - Collinear Antenna Gain=3dB for 2m. Hy Power Antenna Company - US amateur radio antenna manufacturer. Our new portable Dipole antenna set with mounting kit. rig is a codan 2110v 25w fd4 antenna 15ft above ground yyyy, ur station is amazing! do u qsl js8. 4:1 on the 20,15,10m bands Graphics by G8ODE June 2012 iss 1. The main category is Dipole antenna that is about Dipole antennas plans. . Fritzel FD4 OCFD (10-80m) 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. Operating HamSphere 4. This antenna also works fairly well on all odd harmonics,The asymmetrical dipole antenna developed and described by Windom (W8GZ) in 1929 has been used by many amateurs for many years as the FD4. 202 - Two Elements Phased Delta Loop for 40m. 3 dB gain, incl. So here at my home there is also room for improvement. On 40m, 20m and 10m it works nicely, as one would expect for this type of antenna. Unlike typical antennas, this is a non-resonant, Off Center Fed Dipole (OCFD) antenna. and "bout 15 MHz if matching is SWR Window on the following. but it was nice to meet you. 36 . in JO62PL. Since it is resonant on multiple bands the signal level at the receiver is high. Most baluns inside antenna tuners step the antenna impedance down. Download the model according to the specified sizing parameters in either 3D or 2D format. DAVIS RF Co. It is my back-up HF antenna, and one that can be used on 40 meter round table rag chews where a beam may not be ideal. The sectional mast is a low-loss coaxial feed line for unequal length crossed dipole radiating elements which are attached to guy ropes for mast support. I was using only 30 wtts and FD4 antenna and enjoyed vy much, 73 to all . Both of these proved toFritzel FD4 antenna, described by the late Dr. Once I. El dipolo Windom es un dipolo de 1/2 longitud de onda de la banda deseada, estando el punto de alimentación conectando a 1/3. Furthermore, none of these designs offered 30 m. Its main advantage was that it could easily be matched to a tube transmitter. 13-20 describes a modified VS1AA OCFD with a 4:1 balun connected to a coaxial feeder. FD4 (80/40/20/10 m) The 4-band Fritzel model FD4 is a special version of a Windom antenna. Fritz Spillner, DJ2KY, in "Die FD4-Windom-Antenne," QRV, Stuttgart, 25, December 1971, pp. WINDOM. Good contest with many stations. Az FD4 antennámon a következő lépés az antenna mérése, kihasználva a VNWA lehetőségeit. Fritz Spillner, DJ2KY di tahun 1971dan diproduksi secara komersiil dengan nama Fritzel. WINDOM. 6-Band Windom antenna. if you want to rate The FD4 (FD3) Windom Antenna use this special. Add to Cart Details. The dimensions were the same as the multi-band Windom antenna, but fitted with a 200Ω (4:1) balun at its feed point and fed with 50 ohm coax at lower heights above the ground. antenna. The dual dipole wires do the job of providing guying support for the mast. . Mange kortbølgeamatører har glæde af en FD4. Other projects I would like to to : Build me a G7FEK antenna; Build a end fed half wave 20m vertical. Balun C. This version only includes the fsgame ltx download DirectX libraries and shaders. 826 (3. Fritzel FD4 antenna, described by the late Dr. I also have a 10 Metre Dipole in the loft. Also, why every house should have an emergency way of listeni. Las medidas indicadas entre paréntesis, en el gráfico de la izquierda, son las indicadas para trabajar las bandas desde 160m a 10m. So here at my home there is also room for improvement. My dipoles and long wires had so much noise that I hardly ever would listen to HF. Jobbat is el tudtam volna képzelni. At this moment I have to spend my money in a "better" way. Picture courtesy Holger, OX3HI. I found some people to call the coax fed antenna with a balun "FD4" - but some other people call FD4 the modification mentioned by Franco IK1OWB (but the measures are doubled: 9. 8-m and 27. A FD4 multiband HF Antenna B. Délután 4-re már állt az FD4 antenna és az azt tartó pecabot. The FD4 (FD3) Windom Antenna. De antenne wordt op eenderde van zijn The second leg is the "counterpoise". Most Popular. Source for Fritzel Antennas? 10. The second leg is the "counterpoise". za 80m L je 41m. WINDOM. The J Pole HANDBOOK 1 of 15 8272007 8:18 AM Serving HAM Radio since 1959, On the Web Since 1995 Order Toll Free Monday through Friday,…Of course this will only help hams/dxpeditioners with net access or credit card accounts. America. 8-m and 27. This is a pity, because most hams would put up a wire antenna especially for the lower bands where beam antennas are more difficult to erect. But it was over water, the villa pool hi. VU2NSB OmniDX antenna (11m) VU2NSB OmniDX Antenna series is a very s. name xxx qth winterthur near zurich this is my first qso on js8, funny . OK1BA. Fritz Spillner, DJ2KY, in 1971. This result suggests that sequences outside the C and GMR35H08 elements restrict fd4/fd5 expression to the ventral imaginal discs. What became perhaps the most popular multiband Windom design of all, was the German-made Fritzel FD4. As at the way things are now all that will happen is Olivia will get a number of FT8 stations annoyed. Vous connaissez les FD4/FD3 ? vous connaissez les loop ? vous connaissez les halo ? je vous propose sur une idée de G8ODE , dérivé de l'antenne "Cola" l'antenne "OLA" pour Open Loop Antenna (feed off center) The renowned “FD4” antenna was not an exception; Have a look at its VSWR specification on pages 13 and 14 of this brochure. 13-20 describes a modified VS1AA OCFD with a 4:1 balun connected to a coaxial feeder. 1750 114. Antennas Direct ClearStream Flex Amplified UHF/VHF Indoor HDTV Antenna. The old Y-Calls had to change in 1992 and I got DL1JBQ. Fritzel used the shown dimensions of 13. . Short Antenna Windom 160 - 80 meters: THE FD4 (FD3) windom antenna, PA0FRI: The FD4 Windom: The New Carolina Windom: The Windom Antenna Off Center Feed: Una Windom per gli 80, 40, 20 e 15 mt, IZ1TQI: Un toroide per la windom, IK0RKS: Variation on the Windom: Windom antenna, I6QON: WINDOM antenna 160/80/40/20/10 metri, I6IBE:. By serendipity, it also covers the 17 and 2 meter bands. 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. The complete details on how to use the module through SPI is given the data sheet below. The 4-band Fritzel model FD4 is a special version of a Windom antenna. You are stuck at 5W max, so you need really good. 3 MHz. 6% 8 m inv. Ožujak 2004, 14:46:50 ». English Deutsch Français Español Português Italiano Român Nederlands Latina Dansk Svenska Norsk Magyar Bahasa Indonesia Türkçe Suomi Latvian Lithuanian česk. The diagram gives no guidance on key implementation details such as height, and the nature of the common mode. Here I have an FD4 Windom antenna running down the garden, this is an 80 metre dipole but fed offset (about 1/3rd of the way along it’s length) with a step down Balun to match the 50 ohm coax and has a fairly low SWR on 80, 40, 20 and 10 metres. The Windom - Off Centre Fed Half Wave Dipole Antenna. Windom antennas for shortwave, with 1:6 balun and isolators, 200 or 1000 W. 7. The dimensions were the same as the multi-band Windom antenna, but fitted with a 200Ω (4:1) balun at its feed point and fed with 50 ohm coax at lower heights above the ground. , 4 times) over a simple low dipole are possible • Consider horizontal loop or Lazy H over aOur experts are there to help you in word and deed - independent of the frequency range and radio application. 7 m werden in de zestiger jaren door Fritzel in zijn antennes toegepast. 5 méterre volt. Entered for fun between tourist trips to beach with XYL and other things one has to do on holi-day. 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. The fundamental ideaWith some very old antennas the traps of radiator and director are equal. 5 PL Clovis FD3 Fire 3They are monoband or multiband like Frietzel FD4. com in 2 categories. Above, Straw's diagram of the Carolina Windom. The main category is Dipole antenna that is about Dipole antennas plans. vy good fr emcomm. 80,40,20,17,12,10m Seperate parts for balun, isolator, wires. 0 29. post 24 Dec 2021. 55 m dipole fed with a 8. 11a band is. If you find my channel informative and entertaining, I hope you will consider joining my support group by c. MFJ 1779A 160M Dipole Antennas MFJ-1779A. America. . ZS6BKW 's design was based on the original G5RV antenna, a 2 × 15. English Deutsch Français Español Português Italiano Român Nederlands Latina Dansk Svenska Norsk Magyar Bahasa Indonesia Türkçe Suomi Latvian Lithuanian česk. 6-Band Windom antenna - Theory and construction of a novel trapless center-loaded off-center-f. . Fig. Belakangan, karena di feed di titik yang melèncèng dari tengah bentangan antenna (OFF-center) seperti yang kemudian umum dilakukan, maka rancangan ante nna macam ini lantas disebut sebagai off-center fed atau OCF antenna. The Windom - Off Centre Fed Half Wave Dipole Antenna. Vy. It may cost a little more, but the Winegard Elite 7550 pays dividends, delivering a whopping 73. 8 m long 300 Ohm ribbon line. Details and QSL info is in qrz. At present some Czech amateurs call it "PA0FRI" antenna. The circuit diagram shows how the module should be interfaced with a. incl. 26 Inch High Gain Antenna (Original Baofeng GT-3/GT-3TP Antenna) 1 Year and 6 months Manufacturer's Warranty. DX Code Of Conduct. Belakangan, karena di feed di titik yang melèncèng dari tengah bentangan antenna (OFF-center) seperti yang kemudian umum dilakukan, maka rancangan ante nna macam ini lantas disebut sebagai off-center fed atau OCF antenna. Regardless of how high the antenna is, a roof, especially a metal roof, will have a negative effect on the antenna pattern if the roof is 1/8 wavelength away or closer. For the PAL-OCF8010 with 250 feet of RG213 feed line and an average height of 30 feet: Palomar Engineers PAL-OCF8010 Antenna manual 05242021 29. FD4 Antenna - 80-10m 3 el Beam TH3MK4 - 20-10 m Vertical UHF. QSL via DJ6SI. Antena ta charakteryzuje się szerokopasmowością (1:6) oraz dużą odpornością na zakłócenia.