Fritz Spillner, DJ2KY, in 1971. The Fritzel FD4 antenna becomes more popular in Europe and N. incl. 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. pc is a toughbook cf19 wx is quit good,strong winds, 9 xxxx & yyyy are the names of the two participants. Perhaps the most popular multi-band Windom or more accurately, OCFD was the German-made Fritzel FD4 antenna, described by the late Dr. rig is a codan 2110v 25w fd4 antenna 15ft above ground yyyy, ur station is amazing! do u qsl js8. The original Windom antenna (devised in ), named after Loren Windom, W8GZ. WINDOM. Republic of Germany 4, 04450 Federal Republic of Germany (26. 95. SWR is actually better with 300-ohm transmitting line than with the 450 ohm line normally used. 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. Main tether 6. ZS6BKW 's design was based on the original G5RV antenna, a 2 × 15. This encompasses not only long-wire antennas, but also the classic dipole. Download the model according to the specified sizing parameters in either 3D or 2D format. The original Windom antenna from the late 1920s was an off-center fed resonant dipole with a single wire feedline of any length. 200 - Inverted-V Beam Antenna for 30m. Odg: Multiband FD4 antena. Observations: Both the end-fed and center-fed antennas operate just fine without any additional conductors or feedlines. I…However although the antenna wires are strain relieved at the Balun. adding two wires to the basic FD4, 4. 6-Band Windom antenna - Theory and construction of a novel trapless center-loaded off-center-f. Fritzel FD4 OCF Dipole The Frizel FD4 Windom is an OCF (Off Centre Fed) antenna that has been around for a long time. Furthermore, none of these designs offered 30 m. We would like to show you a description here but the site won’t allow us. Both of these proved toKite-borne FD4 antenna as designed for winds of 11 — 15 knots. . antenna systems are easily carried and installed by two people in less than 15 minutes. 5-70. I did follow the instructions and entered my Call and Locator, selected port S1 and connected FD4 antenna but nobody does receive me. FD4S-B288S00JDB2. 80,40,20,17,12,10m Seperate parts for balun, isolator, wires. Now, how was a Windom antenna developed? It began with a center-fed, half-wave dipole. This trademark application was filed with the USPTO (United States Patent and Trademark Office) under the trademark classification: Computer Product, Electrical & Scientific. Je li netko možda stavljao napajanje na neko drugo mjesto jer sam na internetu našao i drugačije omjere. Fritz Spillner, DJ2KY, in 1971. . Hobart FD4/200-3 Commercial Garbage Disposer with Adjustable Flanged Feet - 2 hp, 110/220V. 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. 8 m long 300 Ohm ribbon line. Watch on. Short video of 40m swl :) Thanks for watching my HAM radio videosBANG FOR THE BUCK: Pingbingding Digital Amplified Yagi HDTV Antenna. Fritz Spillner, DJ2KY, in 1971. Antennas such as G5RV with balun, W3DZZ, FD3 and FD4, trap verticals and Yagis can be easily adjusted with a FRI Match. 206 - X-Ray Monoband Antenna Gain=6. > Sent: Thursday, November 04, 2004 7:05 PM Subject: Re: [ARRL-LOTW] DXpedition SupportPut together a quick shortwave antenna using just a few pieces of electrical fencing supplies. com The 4-band Fritzel model FD4 is a special version of a Windom antenna. Watch on. Antenna Multibands Links → . EN. . It is a convenient indicator of how well the transmitter load matches the output impedance for which the transmitter was designed, and it often is the first indicator of a. D. 201 - FD4 Windom Antenna for 80m, 40m, 20m, 10m. Unlike the endogenous expression of the fd4/fd5 genes, the C element is not restricted to the ventral imaginal discs (legs and antenna), as activity of this CRM is also observed in the wing disc. Above, Straw's diagram of the Carolina Windom. Dat is op de laagste frequentie een draad van een halve golflengte. name xxx qth winterthur near zurich this is my first qso on js8, funny . Other images. . 3. Fritz Spillner, DJ2KY, in "Die FD4-Windom-Antenne," QRV, Stuttgart, 25, December 1971, pp. 00 €. Sark100 antenna analizátor. 0 29. 0, but I wonder how to send WSPR or FT8. FD4 (80/40/20/10 m) The 4-band Fritzel model FD4 is a special version of a Windom antenna. 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. I hope you enjoy this video and find it helpful. Fritz Spillner1, DJ2KY, in 1971. 52m long ( TT, October 1972 and ART): Fig 5. COM in Germany because the exchange rate for euros was low. The Off-Center-Fed-Dipole – also called a “Windom” by many companies selling them – has a somewhat blemished reputation amongst amateur radio operators. 2. I asked my landlord for the possibility to fix one end of it on his house. Fritzel used the shown dimensions of 13. com in 2 categories. English Deutsch Français Español Português Italiano Român Nederlands Latina Dansk Svenska Norsk Magyar Bahasa Indonesia Türkçe Suomi Latvian Lithuanian česk. 202 - Two Elements Phased Delta Loop for 40m. BEST LONG-RANGE: Five. The FD4 is almost ready, but the weather hasn’t cooperating lately. 3V microcontroller or a 5V microcontroller but it should have an SPI port. The FD4 (FD3) Windom Antenna. A shorter version FD3 for 40-10m operation is also developed. Website of Fritzel antennas ?? 8. pc is a toughbook cf19 wx is quit good,strong winds, 9 xxxx & yyyy are the names of the two participants. The diagram gives no guidance on key implementation details such as height, and the nature of the common mode. and "bout 15 MHz if matching is SWR Window on the following antenna 'g Of 41. Dahlberg N7AGK. On higher bands it did not work well. The AS-2259 consists of a pair of crossed dipoles on a common feedpoint. jpg (228. The antenna can be employed on 80, 40, 20 and 10m with considerable, though acceptable levels of VSWR. Download the model according to the specified sizing parameters in either 3D or 2D format. 154. 0, but I wonder how to send WSPR or FT8. Mohu Gateway: $35. Windom antennas for shortwave, with 1:6 balun and isolators, 200 or 1000 W. You have to use the the S2 port as others have advised. America. Rated 5 out of 5 stars. 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. It is used for military and paramilitary communications, broadcasting, [1] especially in the tropics, and by radio amateurs for nearby contacts circumventing line. Conclusion: The ON4BAA-300 Windom achieves a lower VSWR than the traditional FD4 Windom on the 80, 30 and 15m bands by feeding the antenna closer to one wire end than usual. H. Description: Fritzel FD4 HAM radio multyband HF antenna. Visit my web site: OCF FD4 (FD3) WINDOM ANTENNA. Properly and efficiently dispose of your establishment's food waste with the Hobart FD4/200-2 commercial garbage disposer with adjustable flanged feet. By 1937 the Windom was described as multi-band antenna that can be employed on harmonically related 160, 80, 40, 20 and 10m bands with acceptable levels of VSWR. 0 Extras: Using the Editor to Customize Your Transceiver. 03. What became perhaps the most popular multiband Windom design of all, was the German-made Fritzel FD4. 2017-10-16. Fritz Spillner1, DJ2KY, in 1971. A shorter version FD3 for 40-10m operation is also developed. 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. . Coax D. Furthermore, none of these designs offered 30 m. You have tried to build an FD4 antenna which is no bad solution at all. Please select a product. 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. S. Both of these proved to1971 - Dr. The renowned “FD4” antenna was not an exception; Have a look at its VSWR specification on pages 13 and 14 of this brochure. 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 Longwire antenna basics basic notes on building longwire antennas for medium waves 6-Band Windom. 5. It had the same dimensions as the VS1AA multiband Windom antenna, but fitted with a 300Ω balun in its feedpoint and fed over coax. All groups and messages. Hari Wire Groundplane Antennas. Which seem the wrong type of connector to me. Great multi-band antenna, I have the FD-4 Fritzel this is the only antenna that I have and it allows me to work 80/40/20/17/12/10 and I use it on 15 and 60 meters with the internal tuner in my 940. Spillner (DJ2KY) that this antenna, with the addition of a small one-band Windom for 15 m, can be used. Please send me schematics or infos by mail to Thanks in advance. Item number # 425fd41503. Versi Dr. 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:. While the G5RV requires an antenna tuner, it is very efficient on at least 5 bands. Rather than feeding the conventional 33%/67% we like the 29%/71% feed point wherein the feed point is 21% from one end and fed with a 4:1 OCF Current balun with built in feed line choke1971 - Dr. 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. De ingetekende 13. isolators. The Fritzel FD4 antenna is a classical antenna in our series of HS4 Legendary Multiband Wire Antennas. . 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. Fritz Spillner, DJ2KY, in "Die FD4-Windom-Antenne," QRV, Stuttgart, 25, December 1971, pp. Most antenna tuners work best into moderate to high impedances, rather than low impedances. 45 m 13. De antenne wordt op eenderde van zijn lengte gevoed met een geschikte HF transformator en coaxkabel. Systems FCC-4 half-wave dipole antenna, also know as the reference dipole antenna, is the simplest form of an antenna. vy good fr emcomm. So far no one has rated yet, so be the first to rate. 0, but I wonder how to send WSPR or FT8. FT-7's PB-1631 B was modified according to FT-7B's PB-1631 D. << serial ‘ngobrol-‘ngalor-‘ngidul ihwal per-antenna-an bersama bam, ybØko/1 >>. This dipole consists of a matching balun and two. 00 /Each. Also, a power amplifier, L4B, is on the way to Baghdad. incl. 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 1960s. Also called "OCF", Off Center Fed dipole. Fritzel used the shown dimensions of 13. Add to Cart Details. The Fritzel FD4 antenna becomes more popular in Europe and N. I was using only 30 wtts and FD4 antenna and enjoyed vy much, 73 to all . 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. After the wall came down I got my own station with an old FT-277B with FD4 antenna. It comes complete with a 1:6 balun with. You have tried to build an FD4 antenna which is no bad solution at all. 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. 8-m and 27. 8-m and 27. Both of these proved toDe az FD4 nem egysávos antenna és a kábel már korábban felkerült a helyére. HamSphere 4. 13-20 describes a modified VS1AA OCFD with a 4:1 balun connected to a coaxial feeder. 2 and 9. , using a shorted stub to act as an automatic switch for various bands. 1971 - Dr. 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. 13-20 describes a modified VS1AA OCFD with a 4:1 balun connected to a coaxial feeder. Final Clearance. 8 PL Clovis PD1 Police Dispatch. Hari Delta Loop antenna for horizontal or vertical suspension, max. Also: Someone asked if there was any usefulness of FT8. Any hints? Thank you. A shorter version FD3 for 40-10m operation is also developed. We discovered in an older periodical (QRV) the explanation by F. T. During his spare time from the contest he will try to work some PSK31, especially on 30m band. Most Popular. 204 - Low Radiation Angle Full-Wave Loop Antenna for 80m. 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. A kada ima problema sa napajanjem, onda su problemi sa komšijama verovatni . I suggest that new frequencies be promulgated, a few KHZ further away from FT8 on the popular bands , such as 40m, 20m 17m 15m. incl. See you again, friends . 460. post 24 Dec 2021. Military AS-2259/GR There are a number of different NVIS antenna plans on the internet that can be adopted to amateur radio use. THE OCF FD4 (FD3) WINDOM ANTENNA 19 may 2011. Fig. 3 MHz. This result suggests that sequences outside the C and GMR35H08 elements restrict fd4/fd5 expression to the ventral imaginal discs. Both of these proved toFritzel FD4 antenna, described by the late Dr. The fundamental ideaWith some very old antennas the traps of radiator and director are equal. Its main advantage was that it could easily be matched to a tube transmitter. g. 5 i 7 MHz i neke multiband vertikalne antene za gornje opsege. receivers, city env. Regardless of how high the antenna is, a roof, especially a metal roof, will have a negative effect on the antenna pattern if the. 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. Do long wires work better than say a standard half wave or quarter wave antenna?Ask an Elmer discusses this very interesting question by one of our viewers. It was designed to cover 80, 40, 20 15, and 10 meters. 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. I'm just afraid that if we install a PayPal box at the LoTW page, paying can become mandatory before QSL-ing. T2FD. I made contacts. It needs no tuner on 40m, 20m and 10m. Antena ta zostałą opracowana na użytek wojska przez United States Navy pod koniec lat 40-tych. 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. 80,40,20,17,12,10m Seperate parts for balun, isolator, wires. 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. Put it up yesterday and wow!! compared with a fd4 windom at aprox same hight noise went down 3-4 s and signal 2 - 5 s up using an ameriton Al 82 at full power no problems at all. University merilis tulisan tentang cara menala half -wave antenna dengan pengumpanan lewat single wire ini. HamSphere is a highly realistic shortwave simulation based on SDR (Software Defined Radio) technology. The Fritzel FD4 antenna is a classical antenna in our series of HS4 Legendary Multiband Wire Antennas. Coax extension2020-06-21 : Tried 6 m with my IC-7300 and a FD4 antenna. Fritz Spillner, DJ2KY, in "Die FD4-Windom-Antenne," QRV, Stuttgart, 25, December 1971, pp. This result suggests that sequences outside the C and GMR35H08 elements restrict fd4/fd5 expression to the ventral imaginal discs. Background. Today’s versions, based on the original Windom, include the common OCF and Carolina. Details and QSL info is in qrz. 5m and 2. 0: We discuss Antennas, DX'ing, Calling CQ, and other Topics. The Windom - Off Centre Fed Half Wave Dipole Antenna. but nobody does receive me. Fritz Spillner, DJ2KY, in "Die FD4-Windom-Antenne," QRV, Stuttgart, 25, December 1971, pp. EN. Monitoring from 93619, on a Uniden BC125AT scanner on AC power (battery backup), paired with an exterior custom j-pole antenna. This has also been the case in Germany. be Multiband Delta Loop (W2EGH) | MyHam. Multiband FD-4 Windom antena. 7 m werden in de zestiger jaren door Fritzel in zijn antennes toegepast. America. until the next time frans pa3cgj: pa6nd102' G5RV standard length antenna with 34' of 3/4" ladder line and a RG8 12" dia, 10 turn coaxial choke, feed by RG8 coax. The end-fed energy is less than the center-fed. The GPA-30 trap was used because water often seeps in with an R6000 trap and the construction is not as robust as that of Fritzel antennas. Latin America. So far received 3. FS: Fritzel Windom Type antenna. Fritz Spillner1, DJ2KY, in 1971. com in a single category. 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. If it had been a Philips crimped on Eyelet that would have been better. but it was nice to meet you. It comes complete with a 1:6 balun with SO-239 connector. The theory of the. A shorter version FD3 for 40-10m operation is also developed. The resonance of the antenna at about 15-m height was close to 3. QSL via DJ6SI. The asymmetrical arrangement of the dipole results in very favourable installation possibilities in some situations. Rest assured, both problems are dealt with by the CL-OCFD, also list-ed at the bottom of Table 1. Signal war mit etwa 15db über dem Rauschen deutlich zu. A FD4 multiband HF Antenna B. 0: Using (but not overusing) DX Spotting and Making Manual. com. The Windom (also called "OCF", Off Center Fed) antenna is one of the most popular wire antennas for radio amateurs. FD4 antena ima problem sa napajanjem. This link is listed in our web site directory since Monday Oct 19 2009, and till today " The Cobra antenna " has been followed for a total of 1493 times. 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. 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. 0: We discuss Antennas, DX'ing, Calling CQ, and other Topics. The. Spillner (DJ2KY) that this antenna, with the addition of a small one-band Windom for 15 m, can. Full Member; Hozzászólások: 126; Karma: +73/-2; G7FEK antenna 80 méterre. The circuit diagram shows how the module should be interfaced with a. Z tego też względu w. By 1937 the Windom was described “as multi-band antenna that can be employed on harmonically related 160, 80, 40, 20 and 10m bands with acceptable levels of VSWR”. Operating HamSphere 4. MFJ 1779A 160M Dipole Antennas MFJ-1779A. This Windom antenna was marketed in the late 70's and early 80's as Smithe's Windom. Fritzel used the shown dimensions of 13. So here at my home there is also room for improvement. The G5RV has a reasonable SWR on 80, 40, 20, 15, and 12 meters. 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. What became perhaps the most popular multiband Windom design of all, was the German-made Fritzel FD4 antenna, described by the late Dr. In the total length of this antenna is 41m, height is about 11m, and diameter of element is 2mm. As low as: €240. I have it mounted flattop up about 45 feet. I improved my setup with a FT920, 3 el Monobander for 10m and made Packet Radio in 1997. This antenna was developed in Germany, although others likely advanced it also. EN. 73 de Raimund DH8RD in JO44PE. Both of these proved toI suggest that new frequencies be promulgated, a few KHZ further away from FT8 on the popular bands , such as 40m, 20m 17m 15m. At present some Czech amateurs call it "PA0FRI" antenna. About The FD4 Windom antenna The resource is currently listed in dxzone. 52m long ( TT, October 1972 and ART): Fig 5. 6-Band Windom antenna - Theory and construction of a novel trapless center-loaded off-center-f. I made contacts with Azerbaijan, Suriname, Qatar and Thailand. Various sizes of a ZS6BKW antenna can be found on the Internet, so that the original design of ZS6BKW is often overlooked. . The 4-band Fritzel model FD4 is a special version of a Windom antenna. This version only includes the fsgame ltx download DirectX libraries and shaders. . It is still available from They continue the Fritzel antenna business. Here you can see the reports. . Spillner (DJ2KY) that this antenna, with the addition of a small one-band Windom for 15 m, can be used. Rengeteg volt az autó és az ember. The Fritzel FD4 antenna becomes more popular in Europe and N. 6:1 and less than 1. But we are speaking about longwires here, not about an FD4. At least the antenna seems working during the February NAC 23cm contest. This antenna talks! The logs don’t lie. 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. balun, incl. Most Popular. 826 (3. Added: 07/18/2019. One of the most versatile and inexpensive wire Antenna for 10-80 meter Band. It is a half-wave long on the lowest frequency, and is fed from a coax cable through a transformer inserted in. NVIS Antenna Strategy • Portable and field antennas will be less efficient due to space, height and setup time • “Command post” or “Net Control” antenna should be as efficient as possible • Gains of up to 6 dB (i. This split allows the OCFD to be operated as a 4 band antenna as the SWR on the 40m band is less than 3. com in 3 categories. University merilis tulisan tentang cara menala half -wave antenna dengan pengumpanan lewat single wire ini. 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. Add to Cart. For a monoband antenna, connect the. I live in a suburb. WINDOM. 8 m en 27. Tevfik Aydin Kazancioglu TA1HZAbout K7MEM - Inverted V Antenna Design The resource is currently listed in dxzone. 47 kB, 1280x1024 -. but nobody does receive me. 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. Rating & Comments (0) Tags (7) Alternate Versions. foot mast. 1971 - Dr. Do long wires work better than say a standard half wave or quarter wave antenna?Ask an Elmer discusses this very interesting question by one of our viewers. This has also been the case in Germany. Fritzel used the shown dimensions of 13. 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 wire antenna is the classic amateur radio antenna. Add to Cart Details. I suggest that new frequencies be promulgated, a few KHZ further away from FT8 on the popular bands , such as 40m, 20m 17m 15m. VAT, plus shipping €63. Watch on. Een bijzondere vorm van een Windom antenne is een FD4 van Fritzel. 1971 - Dr. 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. 1750 114. +49 7276 9668-0 info@wimo. German Old-Timers immediately recall the well-known Windom antenna that Kurt Fritzel, DJ2XH, under the name FD4, brought to the German market in the early 1970’s (still available today by hofi, w . Displaying 1 to 8 (of 8 products) Result Pages: 1. Also, why every house should have an emergency way of listeni. University merilis tulisan tentang cara menala half -wave antenna dengan pengumpanan lewat single wire ini. Below 70 Degrees the radiators start to become parallel to each other and signal canceling will start to occur. A. 26 Inch High Gain Antenna (Original Baofeng GT-3/GT-3TP Antenna) 1 Year and 6 months Manufacturer's Warranty. The dual dipole wires do the job of providing guying support for the mast. Hi all, I bought the Mini1300 from China and Software says Version1. This became known as the Fritzel FD4 (80, 40,20,10m) but is more correctly described as the Off Center Fed Dipole (OCFD). The store where radio amateurs and specialists buy Everything from one source Fast delivery Excellent support See for yourself!The G5RV has a reasonable SWR on 80, 40, 20, 15, and 12 meters. Mohu Leaf: $35. The FD4 (FD3) Windom Antenna The 4-band Fritzel model FD4 is a special version of a Windom antenna. It covers 7 bands, 10-12-15-17-20. Tether for side kites 7. 0, but I wonder how to send WSPR or FT8. com. Fritzel FD3. • Radioddity's limited warranty applies to all BRAND NEW items sold by radioddity. extend the basic antenna (FD4) to its full length. 3 MHz. 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. It was intended to be used on one frequency only. One should use an extra 1 ÷ 1 balun or choke balun to prevent radiation of the coax screen. Fritz Spillner, DJ2KY, in 1971. 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. From time to time OZ0RF is active from Copenhagen in JO65FR. pc is a toughbook cf19 wx is quit good,strong winds, 9 xxxx & yyyy are the names of the two participants. 5 and 28 Mhz. In stock, shipped in 1 to 2 days. Fritzel used the shown dimensions of 13. 35. 2004-02-19. za 80m L je 41m. Opinions sought on Fritzel FD4. 3 dB gain, incl. NOTE: In my oldest Fritzel Catalogue 1970/71 the 4 cm diameter traps of the (<1983) antennas FB-13 FB-23 FB-33 were only suitable for an PA-input: 1 kW AM / CW and 2 kW. 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. on air on 17 meters ,with 30 watts and fd4 antenna. Délután 4-re már állt az FD4 antenna és az azt tartó pecabot. 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. 2. While most of the antennas were made by "name" manufacturers, the Gesobyte and the Btfdreem were chosen specifically. I still young so I thinks this is normal, didn't we all start small.