It will match on even and odd harmonics - but it requires a complex balun at the feedpoint. The theory of the. 25 10. 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. com. Here is my home HF antenna. 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. The Fritzel FD4 antenna becomes more popular in Europe and N. A shorter version FD3 for 40-10m operation is also developed. The wire antenna is the classic amateur radio antenna. So here at my home there is also room for improvement. FDH 4000, 288 distribution fibers, no splitters loaded, LC/APC, dielectric, loose tube, 100 ft stub, distribution cable all 288f stub and input cable 24. University merilis tulisan tentang cara menala half -wave antenna dengan pengumpanan lewat single wire ini. A shorter version FD3 for 40-10m operation is also developed. click here to follow the link to The FD4 (FD3) Windom Antenna. 13-20 describes a modified VS1AA OCFD with a 4:1 balun connected to a coaxial feeder. The OX3HI WSPR transmitter with 20×4 LCD. 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. Part Number: MFJ-1779A. t to. University merilis tulisan tentang cara menala half -wave antenna dengan pengumpanan lewat single wire ini. ifos for FD4 or other antenna. n Fig 28. It is still available from They continue the Fritzel antenna business. Bit easy compare with logging QSO on the higher bands. 5. Fritz Spillner, DJ2KY, in 1971. I did follow the instructions and entered my Call and Locator, selected port S1 and connected FD4 antenna. Add to Cart Details. WINDOM. As at the way things are now all that will happen is Olivia will get a number of FT8 stations annoyed. You have tried to build an FD4 antenna which is no bad solution at all. The Fritzel FD4 antenna is a classical antenna in our series of HS4 Legendary Multiband Wire Antennas. Een bijzondere vorm van een Windom antenne is een FD4 van Fritzel. egy egysávos antenna lenne és az Ohmos összetevő 50 Ohm környékén lenne akkor ha induktív reaktanciát mérünk, akkor egy azzal egyenértékű reaktív. • Radioddity's limited warranty applies to all BRAND NEW items sold by radioddity. Top. Any hints? Thank you. This antenna originated from darc QRV magazine in 1971 should be attributed to DJ2KT, works on 80 40 20 10 meters without ATU, based on the. The output looks a bit “interesting” and it could probably use a Band Pass Filter, but the signal is in fact there. HamSphere 4. For a monoband antenna, connect the. Fritz Spillner, DJ2KY, in 1971[1]. 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. We discovered in an older periodical (QRV) the explanation by F. Watch on. And the length of the legs must match. America. During experiments with for example FD3 and FD4 types, I had noticed that there was a "Windom" point at a length of about 27 m. i missed the russian stations!! oq5m: on5zo or6t: oq4u on5xx on4qj or7r: on4lg ot2j: ot2j on6ix on7vg on3daf pa0rsm first time uba contest: pa3cgj not so many time to participate. Fritz Spillner, DJ2KY, in 1971. antenna. T. 00. Description: Fritzel FD4 HAM radio multyband HF antenna. If anyone has experience, poradte. Fritz Spillner, DJ2KY, in 1971. a Windom (FD4) antenna I liked to satisfy my wish in having a beam antenna usable in the the upper bands. 8-m and 27. Balun C. A weekend with good DX in morse After the frustration with Uganda in morse I switched to chasing different countries and propagation was good in the weekend. Most Popular. . Military AS-2259/GR There are a number of different NVIS antenna plans on the internet that can be adopted to amateur radio use. 13-20 describes a modified VS1AA OCFD with a 4:1 balun connected to a coaxial feeder. Fritz Spillner, DJ2KY, in "Die FD4-Windom-Antenne," QRV, Stuttgart, 25, December 1971, pp. 7-m in the 1960s. The asymmetrical arrangement of the dipole results in very favourable installation possibilities in some situations. The antenna was designed for military use from 2 to 10 MHz (some references say 2 to 30 MHz). Vertical antennas made of steel wire, monoband or multiband, with balun and radials. 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. 8 m long 300 Ohm ribbon line. More recently, as described in an Appendix to a detailed discussion of Windom-type antennas 'The off-centre-fed dipole revisited: a broad-band, multiband antenna' by Dr John Belrose, VE2CV, and Peter Bouliane, VE3KLO (OST, What became perhaps the most popular multiband Windom design of all, was the German-made Fritzel FD4 antenna, described by the late Dr. . So I checked the frequency and had to adjust it (27MHz calibration) But still. The 4-band Fritzel model FD4 is a special version of a Windom antenna. 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 FD4 (FD3) Windom Antenna The 4-band Fritzel model FD4 is a special version of a Windom antenna. 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:. > One additional question if the elements of the antenna are not only > inverted V config but because of the property and space if the. . Hi all, I bought the Mini1300 from China and Software says Version1. Installation de l'antenne filaire FD4 de chez Fritzel sur un pylône de 6 mètres en V inversé la rendant omnidirectionnelle. The FD-4 is still made with outstanding quality of materials. That should be a good anchorpoint to mount my X200 and a wire antenna for HF. 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. Nylon antenna extensions 9. 7-m in the 1960s. 4:1 on the 20,15,10m bands Graphics by G8ODE June 2012 iss 1. 5. BEST LONG-RANGE: Five. About Windom Antenna with 4:1 balun The resource is currently listed in dxzone. 0, but I wonder how to send WSPR or FT8. Various sizes of a ZS6BKW antenna can be found on the Internet, so that the original design of ZS6BKW is often overlooked. WINDOM. Short video of 40m swl :) Thanks for watching my HAM radio videosBANG FOR THE BUCK: Pingbingding Digital Amplified Yagi HDTV Antenna. Fig. . But we are speaking about longwires here, not about an FD4. 2004-02-19. 205 - Collinear Antenna Gain=3dB for 2m. About How to construct a multi-band dipole using speaker wire The resource is currently listed in dxzone. Fritzel used the shown dimensions of 13. 1st xmission 15 dB above city noise level, 2ns xmission abt 10 dB. 1971 - Dr. 1971 300 Ω 41. Also, why every house should have an emergency way of listeni. ANTENNAS. The half-size version is known as the FD3 40-20-10m antenna. 7-m in the 1960s. Don't hesitate - contact us. The FD4 antenna for 20/40/80 had a lot of interference on 80 that we could not trace to a source in the building. An asymmetric dipole OCF is a non-grounded dipole antenna fed by a two-wire line, either a coaxial or a parallel conductor with an open wire. pc is a toughbook cf19 wx is quit good,strong winds, 9 xxxx & yyyy are the names of the two participants. De tråde som Verner//OZ9XU anbefaler dig at montere, giver glimrende resultater. . THE OCF FD4 (FD3) WINDOM ANTENNA 19 may 2011. 03. 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 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. A design for Ka-band satellite communication antenna in earth station is introduced. Latin America. 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. FD4 (80/40/20/10 m) The 4-band Fritzel model FD4 is a special version of a Windom antenna. name xxx qth winterthur near zurich this is my first qso on js8, funny . Most tuners would work better if the balun passed the line impedance through without stepping impedance down. It is an off centre fed dipole, with 10 feet of vertical radiator. Free Shipping. America. 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. foot mast. Add a comment. 9 - A possible 40-meter beam arrangement using quarter-wave folded elements. 8-m and 27. I live in a suburb. Opinions sought on Fritzel FD4. weBoost 5G Dome Ceiling Antenna - 50 Ohm (301121) $79. Fritzel antenna manufacturer address. If it had been a Philips crimped on Eyelet that would have been better. Délután 4-re már állt az FD4 antenna és az azt tartó pecabot. that's not what I'm trying to explain. antenna. Antenna made of soft PVC insulated HO7 V-K 4 wire. com in 2 categories. WINDOM. 7,853 4 17 50. RF-1936/38 Portable Crossed-Pole Antenna Series MECHANICAL RF Connector Side feed with wing nut. 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. Though works on the other bands with an ATU. The FD4 (FD3) Windom Antenna. Antenna Windom Links → . I hope you enjoy this video and find it helpful. 7-m in the 1960s. . COM in Germany because the exchange rate for euros was low. This was a good destruction from my dentistry study on the weekend. Description: Fritzel FD4 HAM radio multyband HF antenna. The windom antenna can also be hung as a. A Portable NVIS Antenna is QRP-Friendly. 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 R-7000 is a good antenna as far as verticals go, but it needs. Fritzel used the shown dimensions of 13. 13-20 describes a modified VS1AA OCFD with a 4:1 balun connected to a coaxial feeder. It was intended to be used on one frequency only. 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. Observations: Both the end-fed and center-fed antennas operate just fine without any additional conductors or feedlines. 0 Extras: Using the Editor to. Please select a product. FD4's are by wide ranges. Displaying 1 to 8 (of 8 products) Result Pages: 1. az FD4-emnél is szarabb. TA4AU. 5 PL Clovis FD1 Fire Dispatch. WINDOM. I still young so I thinks this is normal, didn't we all start small. The half-size version is known as the FD3 40-20-10m antenna. 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. Just need an antenna. All groups and messages. 5dBdThe FD4 (FD3) Windom Antenna - The 4-band Fritzel model FD4 is a special version of a Windom antenna. 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. Dat is op de laagste frequentie een draad van een halve golflengte. Also: Someone asked if there was any usefulness of FT8. 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. I myself am working with a simple FD4 Antenna. So far received 9. As low as: €75. • Radioddity's limited warranty applies to all BRAND NEW items sold by radioddity. It is a half-wave long on the lowest frequency, and is fed from a coax cable through a transformer. I myself am working with a simple FD4 Antenna. K1POO 4 Band Off Centre Fed Dipole (40-20-15-10m ) To demonstrate the accuracy of the MMANA-GAL model of the K1POO antenna, the results from the MMANA-GAL program and Rob’s (M0RZF) Vector Network Analysis are shown below. 0: We discuss Antennas, DX'ing, Calling CQ, and other Topics. It will match on even and odd harmonics - but it. The half-size version is known as the FD3 40-20-10m antenna. Monitoring from 93619, on a Uniden BC125AT scanner on AC power (battery backup), paired with an exterior custom j-pole antenna. The equipment is an RFzero directly into a 1:9 UNUN. e. Download the model according to the specified sizing parameters in either 3D or 2D format. Antena ta zostałą opracowana na użytek wojska przez United States Navy pod koniec lat 40-tych. Fritzel FD4 antenna, described by the late Dr. Ashok Use your search engine to find 'FD3 antenna' and 'FD4 antenna' - I see many hits. Item number # 425fd42003. Baldur Drobnica will be active from Hargeisa, Somalia until 6 June 2018, as 6O0X. Fritz Spillner, DJ2KY, in "Die FD4-Windom-Antenne," QRV, Stuttgart, 25, December 1971, pp. Just wanted to let you know about the success I have had with an antenna project from your web site; 20 Meter "Vertical Zepp Dipole" Antenna by Carl H. vy good fr emcomm. 0000 151. 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. VAT, plus shipping €63. 13-20 describes a modified VS1AA OCFD with a 4:1 balun connected to a coaxial feeder. Fritzel used the shown dimensions of 13. Note the circled area at 1/3 length - this is where the impedance is about the same for all these bands. QSL via DJ6SI. 50 m 32. VU2NSB OmniDX antenna (11m) VU2NSB OmniDX Antenna series is a very s. Allows you to more easily get the antenna up high and outside. New Carolina windom antenna - PDF file by QRP Expressions by By N. MHz 4. 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. Both of these proved to FD4 (80/40/20/10 m) The 4-band Fritzel model FD4 is a special version of a Windom antenna. hello, 13,5m; 27,5M and a 1:6 balun. 1971 - Dr. America. Furthermore, none of these designs offered 30 m. pc is a toughbook cf19 wx is quit good,strong winds, 9 xxxx & yyyy are the names of the two participants. Fritzel FD4 antenna, described by the late Dr. Date: Wednesday, March 24, 2010, 8:24 AM. Searching for Fritzel Windom (Fritzel in business?) 4. com and TCSWAT web page. Watch on. The long operation of 6O0X continues in Somalia. 8-m and 27. , 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. 13-20 describes a modified VS1AA OCFD with a 4:1 balun connected to a coaxial feeder. With the RigExpert antenna analyzers, the process of tuning directional antenna is simple and easy. 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. Len Carlson, K4IWL. but nobody does receive me. Fritz Spillner, DJ2KY, in 1971. 7-m in the. Hari Wire Groundplane Antennas. 5m and 2. It is a long half wave on the lowest frequency and is powered by a coaxial cable through a. 73 to all FT8/FT4 Digital Modes Group (Welcome To All Licensed HAM) | on air on 17 meters ,with 30 watts and fd4 antenna. University merilis tulisan tentang cara menala half -wave antenna dengan pengumpanan lewat single wire ini. OCF, FD4, FD3 (WINDOM) ANTENNE Met foto's, tekst en tekeningen. I made contacts with Azerbaijan, Suriname, Qatar and Thailand. On higher bands it did not work well. Although thousands of “hams” use and love these multi-band antennas, especially here in Europe, it seems just as many people, including several well-known antenna experts, view it. $1,909. 3V microcontroller or a 5V microcontroller but it should have an SPI port. Fritz Spillner1, DJ2KY, in 1971. A Portable NVIS Antenna is QRP-Friendly. 5; 7; 14; 18; 28 MHz-en. 16. The dipoles are cut for roughly 6. 6 band windom anten 80-40-20-17-12-10m Let's make an antenna so that it is easy, inexpensive, no material problem, working in every band and efficient. Spillner (DJ2KY) that this antenna, with the addition of a small one-band Windom for 15 m, can. In addition the T2FD has some attractive properties in terms of noise reduction, which some long wires / dipoles and ATU combinations are susceptible too. My maximal lenght for the 2/3 wire is 24m maxi, i have no mutch place in my little garden. 110/220 Volts. Ham radio call database for everyoneThe feedpoint of the 3-band antenna is not in the center, but more like a windom system: Off Center Feed (OCF). Tehát amit lent mértem az közel sem az, ami az antenna talppontjában ( a balun alsó végén ) lenne. 0, but I wonder how to send WSPR or FT8. This trademark application was filed with the USPTO (United States Patent and Trademark Office) under the trademark classification: Computer Product, Electrical &. The main category is Dipole antenna that is about Dipole antennas plans. Fritz Spillner, DJ2KY, in "Die FD4-Windom-Antenne," QRV, Stuttgart, 25, December 1971, pp. Fritz Spillner1, DJ2KY, in 1971. incl. You have tried to build an FD4 antenna which is no bad solution at all. A shorter version FD3 for 40-10m operation is also developed. 13-20 describes a modified VS1AA OCFD with a 4:1 balun connected to a coaxial feeder. Fritzel FD4 OCF Dipole. You are stuck at 5W max, so you need really good. 249. 13 votes, 20 comments. 0 Extras: Using the Editor to Customize Your Transceiver. DX Code Of Conduct. Fritzel FD4 antenna, described by the late Dr. 75 MHz) from the antenna. This became known as the Fritzel FD4 (80, 40,20,10m) but is more correctly described as the Off Center Fed Dipole (OCFD). The last change around the mixer circuit is based on FT-7B's AGC design e. En FD4 er en glimrende antenne, opsat inverted vil du opnå en lavere udstrålingsvinkel, altså bedre til DX. The Fritzel FD4 antenna becomes more popular in Europe and N. WINDOM. The base sat on the tile floor. The Fritzel FD4 antenna is a classical antenna in our series of HS4 Legendary Multiband Wire Antennas. 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. 7-m in the. 0, but I wonder how to send WSPR or FT8. I use a FD4 Antenna, a Datong convewrter and my TS480 to listen for SAQ today morniung and just before. I am new to shortwave radio and just thought I'd share my experiences in starting with this hobby. Fritzel FD4 antenna, described by the late Dr. Hari Wire Groundplane Antennas. Fritzel FD3. The Fritzel FD4 antenna becomes more popular in Europe and N. Add a comment. 00. Because the most popular way to feed an 80-meter dipole is with a 50-Ω coaxial feed line, the conversion to a broadband antenna system is straightforward. Hi all, I bought the Mini1300 from China and Software says Version1. Mivel valószínű, hogy egy sávon se félhullám hosszúságú, ebben az esetben, hossztól, frekvenciától függő impedancia transzformációt végez. Szerző Téma: G7FEK antenna 80 méterre (Megtekintve 3197 alkalommal) hg0npj. 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. Full Member; Hozzászólások: 126; Karma: +73/-2; G7FEK antenna 80 méterre. 2. It cover. Fritz Spillner, DJ2KY, in "Die FD4-Windom-Antenne," QRV, Stuttgart, 25, December 1971, pp. in JO62PL. The dual dipole wires do the job of providing guying support for the mast. So I checked the frequency and had to adjust it (27MHz calibration) But still no success. 0: We discuss Antennas, DX'ing, Calling CQ, and other Topics. One of the most versatile and inexpensive wire Antenna for 10-80 meter Band. Also, why every house should have an emergency way of listeni. Since it is resonant on multiple bands the signal level at the receiver is high. . Fritz Spillner, DJ2KY, in 1971. 68. That is a wire of half a wavelength on the lowest frequency. . 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. Antenna, 160 Meter Single Band Wire Dipole, 1500 W, SO-239, Kit. Unlike typical antennas, this is a non-resonant, Off Center Fed Dipole (OCFD) antenna. Npr. Még lehet finomítani de már így is jó. This antenna was developed in Germany, although others likely advanced it also. 80,40,20,17,12,10m Seperate parts for balun, isolator, wires. Topic: Dipol - FD3 - FD4 (Read 3108 times) 0 Members and 1 Guest are viewing this topic. The Windom - Off Centre Fed Half Wave Dipole Antenna. So far received 3. 204 - Low Radiation Angle Full-Wave Loop Antenna for 80m. I'm just afraid that if we install a PayPal box at the LoTW page, paying can become mandatory before QSL-ing. ). The antenna can be employed on 80, 40, 20 and 10m with considerable, though acceptable levels of VSWR. 202 - Two Elements Phased Delta Loop for 40m. but it was nice to meet you. One would argue that the stations worked would simply mail some funds to these DXpeditions to offset the lost income included with QSL requests. jpg (228. WINDOM. Systems FCC-4 half-wave dipole antenna, also know as the reference dipole antenna, is the simplest form of an antenna. 201 - FD4 Windom Antenna for 80m, 40m, 20m, 10m. extend the basic antenna (FD4) to its full length. 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 FD4 Windom antenna. I recently purchased the 5KW FD4 from an MWF-SERVICE. Also, a power amplifier, L4B, is on the way to Baghdad. FD4 antenna, lent a kábel végén mérve. That means about 500 W/CW and 1 KW/CW, SSB transmit power. . 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. ASUS AX3000 Dual Band PCI-E WiFi 6 (802. 0: Using (but not overusing) DX Spotting and Making Manual Logging Easier. The wire tails connecting to the Balun Bolts are just ordinary Philips Spades. Fritzel FD4 antenna, described by the late Dr. English Deutsch Français Español Português Italiano Român Nederlands Latina Dansk Svenska Norsk Magyar Bahasa Indonesia Türkçe Suomi Latvian Lithuanian česk. The half-size version is known as the FD3 40-20-10m antenna. It is not an acceptable performer on 30, 17, or 10 meters. 7-m in the. 2017-10-16. 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”. Fritz Spillner, DJ2KY, in "Die FD4-Windom-Antenne," QRV, Stuttgart, 25, December 1971, pp. I'm just afraid that if we install a PayPal box at the LoTW page, paying can become mandatory before QSL-ing. RST 579. Didn't think of the postal theft situation in many countries. OK1BA. This result suggests that sequences outside the C and GMR35H08 elements restrict fd4/fd5 expression to the ventral imaginal discs. The wires are installed in an inverted-vee configuration from the top of a 4. Regardless of how high the antenna is, a roof, especially a metal roof, will have a negative effect on the antenna pattern if the. Dari sinilah lantas lahir legenda yang menyebutkan antenna Windom sebagai antenna lembah atau antenna bantaran kali, seperti yang di tanah air di”wakili” oleh transmisi gahar dari OMThe Inverted-Vee tends to be more omni-directional and radiate equally in all directions. A shorter version FD3 for 40-10m operation is also developed. This Windom antenna was marketed in the late 70's and early 80's as Smithe's Windom.