Homebrew vhf antenna This antenna is the homebrew %PDF-1. Commercial quality, heavy duty beam antenna suitable for directional reception and/or transmission, where your coax attaches to a female N-Connector on the dual boom design. Project Description. One of the cool links on this page is to plans for building KI0AG’s Micro Duplexer. 40 . jpeg file Ant2. 52-53 I built a VHF antenna that I find works well on upper VHF (7-13) at least, out to pretty decent distances. Over the coming months, I hope to add more as and when. There are several types of VHF and UHF antennas. 3D Printed Portable HF Antenna AF source using your RF generator Retro audio amplifier - for the bench and fun Pathlosses J-poles, J-poles, J-poles. antenna vertical antenna. 7721118 Discussion starter. I've attached some images. Location can be more important than gain, but having a bit Subject: 2m Halo Homebrew Antenna Mon Jun 07, 2021 11:46 am: Hi All, That might not sound too impressive, (compared to HF distances), but for VHF holding precariously to a homebrew antenna in my shack and a 40 year old radio I thought that was quite good going! (Couldn't hear it at all on my vertical I use for repeater work. The versions described were made of wire and cut for 6 meters Home » Homebrew » VHF Antennas » 6 Element Log Periodic Yagi for 6 meters. That’s because the center Home » Homebrew » VHF Antennas » Halo antenna for 70Mhz. Fig C Fig C shows three ferrite cable cores PN 2661540002 slipped over a RG-58 coaxial cable. 00 Ham Radio Satellite Antenna; The Hentenna; 4m Slim Jim Antenna; VHF – UHF 142 – 450 MHz Log-periodic Antenna; 6m/10m Dual Band mobile whip; 2m Folded Dipole; Six Meter Yagi Antenna; I5MZY 13 Element Yagi for 2 Meters Band; Dual Band J-Pole for UHF VHF; Double Quad for VHF UHF by I5NZR « Listed under the Antennas/2M category that is about Antennas for 2 meters band. IC-7300 Dimensions for the inverted V antenna from 160 to 2 meters by N6JSX Related Posts via Taxonomies20 meters QRP DipoleA short dipole for 80 metersInstructions for Putting up a Long-Wire AntennaJ-vertical Antenna for 10 meters band6m/10m Dual Band mobile whip6m 1/2 wave Melrose VerticalVK5AH – HF 4 Bander Antenna Construction & Adjustment Tips40m/80m Recently the RASON technical committee was hard at work at the repeater site repairing our 2 meter repeater antenna. jpeg 64k . An icon used to represent a menu that can be toggled by interacting with this icon. These are earth-orbiting satellites, which can only work for a short period per pass between the AOS I’ve gotten an number of inquiries from SWLing Post readers asking for a step-by-step guide to building the passive loop antenna I’ve mentioned in a number of previous posts. 45/10 G0KSC Antennas - free yagi designs for ham radio Canvey Island, Essex, England Justin@g0ksc. jpeg 50k . This 4m Slim Jim is cheap and easy to build yet it greatly out performs the more usual dipole due to its low angle of radiation. The losses are too great using a tuner with coax so it is recommended to include a simple balun (details below). 95. 5/8 vertical groundplane antenna for 50MHz RE-A50V58. This antenna is similar in construction to the 2-meter OFC sleeve dipole I built over 8 years ago, but it is a simple center-fed dipole. Now build the 146MHz antenna, don’t forget the overall length of the antenna is the lowest frequency you will be using. Top. Since an old 5 element version (v1) of my antenna was shown in the July 2011 edition of RadCom, a few people have contacted me asking for some information on how it was constructed. Magnetic Loop Antennas – Experimenting with a VHF magnetic loop and a larger HF one in the back Lastly regarding gain, if you choose a directional antenna like a Yagi with high gain in one pointing direction (but not omnidirectionally), you will usually want to plan for a mounting scheme that allows for rotating the antenna. Nothing much, but it did indicate a small amount of common-mode currents on the braid of the feeder. Comparison: 19. That's what you'll tend to find or be suggested when asking for a dual VHF/UHF antenna. Attach your feed line. Its purpose is to make the antenna system "look like" a purely resistive load - usually 50 Ohms for the vast majority of ham radio transceivers or receivers nowadays. Antennas/VHF UHF; Antennas/Mobile; The title of the main category is Mobile and it deals mainly with mobile antennas. No tuner required. I always wondered what was in one of these things, and now I know. Double Quad for VHF UHF by I5NZR; VHF/UHF Quad Antenna; The $4. 65′ EFHW antenna – 40m through 10m at 35′. By: IK4DCS Hits: 3929 | Votes: 10 | Rating: 6. The antenna was not only lightweight, but cheap and easy to construct, (I didn't want to lose any more expensive ham gear the next time I'd tip my canoe over!). The calculator program available for download to design this antenna is in xls spread sheet format and requires that you have a program that will read xls spread sheet files. This easy to build dual band VHF/UHF antenna makes a great project for the new ham that is ready to get on the 2 meter and 70 centimeter amateur radio bands. jpeg file Ant3. The table below summarizes the element dimensions and spacing for frequencies of 146. Quad antenna homebrewing, mechanical considerations by IZ7ATH. All you need is a 2. antena ukf. You could go higher with yours and get better performance. I read the article he was referring to (see reference below) and it looked to be a nice antenna that others were having success with. Over the last year or so, I have received numerous inquiries into antennas that cover all of both bands. See more ideas about antennas, ham radio antenna, ham radio. Assembling the antenna: First, put the 4 way connector on your mast of choice. -RG-8 cable with PL-259 plug. PL-259 to BNC female. This Blog is mainly dedicated to Amateur VHF 1/2wave vertical antenna for the 6-meterband (50 Mhz) RE-A50V12 By Guy, de ON6MU. 70MHz Quarter Wave Ground Plane – Building a simple 1/4 wave ground plane antenna for the 4m band. ; Magnetic Loop Antennas – Experimenting with a VHF magnetic loop and a larger HF one in When it comes to getting the most enjoyment out of Amateur Radio, there is nothing more important than your antenna system. Member of GDXF (25), UKSMG (1055), AGCW (3513) This homepage is dedicated to the homebrewing of equipment, especially for building HF- and VHF-Yagi-antennas. It is used between the transmission line of an HF antenna system and a transceiver or transmitter. NEW. 5 Meter HD telescoping mast has 9 sections. How to test homebrew antennas (Dutch Only) Practische Wifi Antenne Metingen (Alleen in het engels) Practical Wifi and VHF mobile every day. Antennas: VHF UHF. HF/VHF Portable Mini Tuner; A small portable While it isn’t a homebrew project a Sark-100 antenna analyzer is worth a look. Ant1. Working International Space Station With Homebrew Delta Loop VHF Antenna. This will allow you to view 2. As The 5/8-wave antenna. 1 m long electrical copper wire and a quarter wavelength piece of 75 ohms RG6 cable for matching. Now that I have become a bit more active on the bands I want more than just to talk on the local repeater. 144MHz Portable Yagi Beam – A compact, portable 6 element 144MHz Yagi antenna. Antennas. A lot of people use a compromise antenna, for various reasons. jpeg This has obliged me to optimise my station to the best of my ability. 7dB COLINEAR ANTENNA by Harry Lythall - SM0VPO. The feeding is done through a system called gamma Advantages of separate antennas. I got an SWR of 1 Homebrewing antenna tuners category is a curation of 97 web resources on , ICOM Tuner Connector, Balanced Antenna Tuner, A Versatile SOTA Antenna Tuner. There are now several good dual- band (144/430MHz) antennas available. Assemble the antenna directly onto the topmost section of the mast. The SO239 connectors will have to Welcome to Harry's Homebrew Homepages; a resource for radio, hamradio and electronics in general. This Antenna System is built around an efficient, resonant, robust, convenient, and easy 49:1 EFHW (End-Fed Half-Wave) antenna at the core. Slim Jim's. Works great and I like the fact that I ca Various antennas I have built. The DXZone; News; Reviews; Links; Inside DXZone; Ham Radio Software; Antenna Projects; Technical Reference; Homebrew 5 Element VHF Yagi-Uda. Antenna ini merupakan varian kepada antenna Yagi 2 elemen. ). Delta Loop VHF Antenna very easy to make. 5” Antenna Measured SWR vs 4NEC Simulation SWR Figure 17: 2m Measured SWR vs Simulation SWR for Optimal Compromise Posted on February 12, 2022 Posted in Homebrew, VHF Antennas. homebrew vhf yagi 50mhz 144mhz 432mhz 1296mhz 2320mhz 6m 2m 70cm 23cm 13cm yagis. the 223. Resources listed under Antenna Tuner category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators. This page contains construction details on a 2 metre 144MHz VHF Yagi beam antenna, designed for portable use. 5GHz HF VHF UHF Antenna Analyzer Measuring S Parameters, VHF antenna. Push an arm on either side. de . Here’s a really nifty heavy duty antenna switch that’s better than most you’ll find Homebrew VHF and UHF Diplexer Glen Ross, G8MWR. Welcome to my ‘Homebrew’ page. I used 1″ thin-wall PVC pipe, aluminum tape, and RG-8X coax. Hits: 879 Quad Antennas for 50 MHz; A VHF-UHF 3-Band Mobile Antenna QST February 1980, pp. This is practically a horizontal loop, namely a half-wave folded dipole, with its endings slightly separated. WB3AYW uses this antenna in repeater operation. 6 Element Log Periodic Yagi for 6 meters Posted in VHF Antennas. Discussion in 'Videos and Podcasts' started by VU2JO, Oct 31, 2024. Each section is around 6 feet long. It has gone through a few revisions over the years (this is version 4) and is now a G4CQM Homebrew VHF Yagi antennas; The 2-Element-HB9CV-Beam; G8VR a small Yagi for 50 MHz; 50 Mhz 6 element yagi; About DXZone. I have also used a clip on ferrite or two for VHF. parks on the air. So 1/3 of the 80 meter band, most or all of the 40 meter band, and cover most bands above that. by Steve (KM4FLF/VA3FLF) Last spring, I was going through my many boxes of ham “stuff” looking for items to sell at our club tail gate sale. Feeding is applied directly to element B. VK3PY Forum Diehard Posts: 332 Joined: Sun Jul 29, 2007 1:12 pm. The resource has been on our site since Saturday Jan 7 2006, and it has been viewed 36891 times. Products (48) Base Station Antenna (39) Directional Yagi Antennas (12) Fiberglass Collinear Antennas (17) Folded Dipole Antennas (14) Wideband And Discone Antennas (5) Couplers (0) Cavity Filters (0) Bandpass Cavity A Great Homebrew Vertical Antenna. VHF and UHF Moxon antennas are very popular thanks to the easyness of construction and portability, while HF models are very uncommon, but still interesting to homebrew. This web page is a journey through my efforts to build a low cost hex beam antenna for the 5 ham bands from 14 to 28 MHz. https://www. Performance is equal to a J-pole, but it’s smaller, less Building a LEO SAT ground station: 70cm Eggbeater Antenna. sota. The antenna can be mounted by clamping the PL259 to a mast or even passing the coax through a 3/4 ID PVC pipe and compression clamping the PL259. MAST (D) : Homebrewing the J-Pole Dual 403 CHEAP DIY Homebrew Wire Antennas for Ham Radio Bravo to Iulian Rosu YO3DAC / VA3IUL For This Ham Radio Treasure Chest!Wa PF of All These 403 CHEAP DIY Homebrew Wire Antennas for Ham Radio for Your Own Computer? · NanoVNA-H4 Vector Network Analyzer Kit 10KHz-1. 2023-05-02 After I am now finally QRV on the geostationary satellite QO-100, I would like to be able to additionally work LEO satellites, which have amateur radio transponders on board. Related Posts via Taxonomies. Read More 144 mhz I5MZY vhf antenna Yagi Antenna Dual Band J-Pole for UHF VHF Posted on September 6, 2021 Posted in UHF Antenna, VHF Antennas. Then add another slip coupler and push on the whip holder. For lightweight RG-58 cable, you need an appropriate adapter, eg. 2//3. Jump to Latest 39K views 18 replies 9 participants last post by joprf Mar 22, 2021. 11b/g wireless networking. 000MHz and 435. summits on the air. At VHF, both the 1/4-wavelength monopole and the 5/8-wavelength monopole antennas are widely used. Here below some monoband and multiband HF Moxon antenna projects: 10 M Moxon Antenna Plan; A moxon antenna for 28 MHz. I'm still using this antenna over a decade later, and I sure have logged a lot of DX from all A Homebrew Omni-Gain Vertical Collinear Antenna by Mike Collis WA6SVT Back to the Antenna Systems page Home (main index) page : An Omni-Gain Vertical Collinear for VHF and UHF Coax comes alive II, the next generation An antenns built from this antenna design could also be the master receive antenna for all the UHF repeaters at a Homepage for homebrew DK7ZB- Yagi -Antennas. Antennas: 2M. Element distances : A to C 11,5 cm B to C 4 cm. All antennas are constructed using THHN wire and 3D printed parts provided by Macarr Labs. youtube. HFSS allows for extremely accurate simulation of the complete antenna including booms, insulators, coax cable and so I promised this for a long time, to some of the subscribers asking about my dual VHF - UHF vertical dipole antenna. lightweight. The Build a Homebrew Hexbeam Antenna by VE7IT. While browsing through my new copy of Simple and Fun Antennas for Hams one day in the Spring of 2003, I discovered an interesting looking design, with an interesting name – the Hentenna. BUY ANTENNA PARTS; ASTRONOMY YAGIS symmetrical X-pol/crossed Yagis that work well on both VHF/UHF. If you look at your completed antenna with the same view, all the elements on the left boom point up and all the elements on the right boom point down, they do not reverse like the picture you posted. Halo antenna for 70Mhz Posted in VHF Antennas. An SWR of 1:1 is obtainable across the 4m FM band with simple A Simple & Cheap Dual band antenna will save you having two different antennas for UHF and VHF. Page 3. print 3d. To this end I became a fan of Derek G4CQM PowAbeam Antennas designs which are in my opinion the closest to perfection yagi designs, period. Designed by John Stockley G8MNY. This beam antenna is a coax-feeded version of the ZL MAKE A HOMEBREW HF-VHF ANTENNA TUNER Normal use will be HF and perhaps some circumstances in VHF bands. A directional VHF/UHF antenna can help you reach out and tag that distant station, but unless you can readily to coax feed line, the antenna’s feed-point impedance is adjusted to that of the coax by varying the A custom plastic framework supports the elements of a homebrew VHF/UHF antenna. google. This construction project involved some scrounging, welding, 3D printing, 4nec2 simulations, some ebay purchases, and a lot of sifting through the junk box By pulling out the old collinear antenna and replacing with a new, home-brew version, using the existing outer (fiber glass) shell you can have a good working repeater antenna for the remote site. 144MHz 2m Portable Yagi VHF Beam Antenna by MØUKD This page contains construction details on a 2 metre 144MHz VHF Yagi beam antenna, designed for portable use. prcguy Member. this diy guide details constructing a 5 element yagi antenna for vhf frequencies yagi antennas offer directional signal transmission reception compared to omnidirectional ones the guide covers material selection aluminum screws etc design using software or formulas and step by step assembly including cutting elements drilling holes and attaching the coaxial cable A ground plane antenna for 2m or 70cm is one of the simplest antennas to build and get working, and it can work quite well for repeater or simplex operation. petg. The only antennas that I don't build for myself are mobile antennas (though I've built one or two). prcguy This page contains construction details on a 2 metre 144MHz VHF Yagi beam antenna, designed for portable use. Listed under the Antennas/2M category that is about Antennas for 2 meters band. The Sark-100 is AD-9850 DDS based and with the AK4R PC software comes close to the functionality of the AA-55 Zoom and for certain tests is more accurate. It consists of 2 paths of low & high pass filters, each path built on a wall of a double sided PCB BOX on opposite sides. pota. Each antenna was tested at the same height and using the Building manual HF antenna switches; Homebrew 70cm (430 MHz) antennas; Exploring balanced antenna couplers; The benefits of vertical dipoles for HF; Field strength meters to build; Antenna ideas for the 12 metre May 21, 2020 - Explore Paul R Mark's board "Antennas VHF/UHF Homebrew HAM & TV" on Pinterest. 3) and another 1 turn to ground, & finally a 15pF to the aerial socket at the end of This article taken from QST September 1994 is about a vertical dual-band antenna for 144 and 430 MHz made with a TV twin lead and coax cable. Since 1998, a group of radio amateurs has been reviewing new Homebrew VHF Scanner Antenna. Background. Halo 7 elements Yagi-Uda Antenna for 144 MHz Homebrew (136) HF Antennas (76) Raspberry Pi (1) UHF Antenna (15) VHF Antennas (37) Photos (4) Homebrew (135) HF Antennas (76) Raspberry Pi (1) UHF Antenna (14) VHF Antennas (36) Photos (4) Short News (4) Video (4) Comments. Joined Feb 24, 2001 Messages 0 Location Virginia. Motivation: The A 1 metre piece of 25mm aluminium tube is used to mast mount the antenna, as using PVC might have resulted in too much flexing and bouncing of the antenna, since we do get westerly winds up to 80km/h (sometimes 100km/h) being a geographically flat part of Melbourne (basalt plains). Creation date : 11/08/2007 @ 19:11 Last update : 17/09/2024 @ 23:32 Category : Multiband HF Projects Page read 63584 times The transmatch, or ham radio antenna tuner, is a variable impedance matching device. This Blog is mainly dedicated to Amateur Log periodic antennas for VHF and UHF. The advantages of having a backup are obvious (a frigate bird removed our masthead antenna at Tabuaeran), but it may be less obvious why separate antennas for VHF voice and AIS are useful. 1. uk. On the HF bands, a bumper-mounted “homebrew” antenna—that costs about the same as the VHF antenna—added the bonus of a fun day at the workbench! My HF antenna is a “bug-catcher” style vertical that has netted me CW For VHF/UHF, height is king, especially when you can't use higher power or more sensitive weak signal modes (SSB, CW, FT8, etc. Text search. 000MHz. switch and an LED. Supported bands: 40-20-17-15-10. VHF and UHF Antenna Design 144/432MHz Homebrew Antenna Diplexers . 11b/g), 2m, 70cm and 13cm Radio This is discussed further in the better articles about mobile antennas. This includes the Wifi (802. End Fed Half Wave Antenna Coupler (EFHW) 1:1 Voltage Balun for HF wire dipoles; 9:1 Magnetic Longwire Balun / Unun; Simple MAKE A HOMEBREW HF-VHF ANTENNA TUNER Normal use will be HF and perhaps some circumstances in VHF bands. I am not sure where I obtained them, but I decided they were keepers. -Connect a SWR meter Listed under the Antennas/VHF UHF category that is about Antennas for VHF UHF bands. dipole antenna. That’s because the center This easy to build dual band VHF/UHF antenna makes a great project for the new ham that is ready to get on the 2 meter and 70 centimeter amateur radio bands. The DXZone is the largest human created library of amateur radio Web sites, it currently lists more than 20,000 links organized into more than 600 categories. 16-17 Three bands - 144, 220 and 440 - on one stick, a triband J-pole. Concepts. 5pF (2. The circuit on this page serves as a Voltage Standing Wave Ratio meter or VSWR meter for the VHF-UHF-SHF frequency range. SHERWOOD VHF/UHF. Using coax with a tuner will gain you nothing except a happier radio. Listed under the Antennas/VHF UHF category that is about Antennas for VHF UHF bands. Product categories . 70MHz Quarter Wave Ground Plane Antenna; 144MHz 2m Portable Yagi VHF Beam Antenna; Magnetic Loop Antennas; Five turns, 6cm diameter for 70MHz. A project by DL5DBM for a VHF UHF antenna suitable for handheld transceivers. 3 %Çì ¢ 8 0 obj > stream xœÕVKk 1 ¼ëWè˜ ¬HŸÞÇ zé¡eiÎ&~4%¶±ÓPúï+í®Öëõd³”@© /b˜ù^’5>p) q™Ÿ²xز »ùêøæ™}IK G4CQM Homebrew VHF Yagi antennas Homebrew VHF Yagi 50MHz 144MHz 432MHz 1296MHz 2320MHz 6M 2M 70CM 23CM 13CM Yagis Vertical half-wave aerials for 4m Practical designs pictures and alternative If that ground plane is made well (it probably is) then you are doing better than maybe half of people who you will be talking to. The mast is a Spiderbeam 14. Listed under the Technical Reference/Duplexers category that is about Duplexers and diplexers. e-mail-adress: dk7zb(at)darc. So far it received 39 votes for a total score of 4. G4CQM Homebrew VHF Yagi antennas By Ferrite cable cores PN 2643102002 can be used in the VHF antenna design and one can use ferrite cable cores PN 2661102002 in the UHF antenna design, both also from “Fair-Rite” Products. If using a dualband radio with separate antenna connections or separate Vhf and UHF radios that would work. A project for a home made 5 element yagi-uda antenna for 2 meters, covering 144-148 MHz band by N1BMX Homebrew VHF/UHF/SHF (Wifi) Standing Wave Ratio Meter (VSWR meter) Zelfbouw Antennes Testen. gnumeric With a little more Googling, I found VE2ZAZ’s homebrew satellite antenna. One of the members commented to me that I should write an article about collinear arrays so that we could all build a homemade vhf uhf vertical antenna made essentially with rg58 coax cable with a 9 turns choke balun to prevent the shield acting as a rf radiator . VHF and UHF activity of all sorts on both bands is also growing. Joined Jun 30, 2006 Messages 15,519 Location So Cal - Richardson, TX - Tewksbury, MA. The VHF 5/8-wavelength (144 Mhz) vertical monopole has long held the reputation of providing about a 3 VHF Tuning-To tune the antenna to my country, Malaysia amateur VHF band 144-148 Mhz, I set the radio frequency to the center frequency of 146 Mhz so it can generally covers the whole VHF amateur band. Either way let your creativity work for you. S. There is also an appendix on Anntenna Matchbox selection and another on Baluns, including how to build your own simple and effective balun for use with an Asymmetrical Matchbox. Antennas on HF: 135′ EFHW antenna – 80m through 10m at 40′. After initially setting up the antenna, I found that if I put my hand on the coax near the feed point or moved the coax around somewhat, then I’d get minor changes in the SWR. both designed for VHF. 6700 posts · Joined 2007 Add to quote; Only show this After the antenna installed at the final location, don’t forbid that probably you would have to start again the adjustment procedure. This article will help further After all this is true for any kind of antenna. I want VHF SSB, so I need a decent horisontal Yagi. 00 Ham Radio Satellite AntennaThe Hentenna4m Slim Jim AntennaVHF – UHF 142 – 450 MHz Log-periodic Antenna6m/10m Dual Band mobile whip2m Folded DipoleSix MeterRead More Build Your Own High VHF Log Periodic Antenna. 144/432MHz Homebrew Antenna Diplexers By G8MNY. rotator. I Homepage van Maarten Ouwehand PG1N. Since then he has refined the design and has worked some superb dx from his qth in IO93. Since an old 5 element version (v1) of my antenna was shown in the July 2011 edition of RadCom , a few people have A fellow Ham recommended that I try building a 2 meter / 70 centimeter vertical dipole antenna. Technical Reference: Duplexers. I also want to put out a respectable signal on FM, vertically polarised. Double Quad for VHF UHF Antenna Dimensions : A) VHF element 147 cm B) radiator 49 cm C) UHF element 17 cm. IT System Engineer, recently started having fun with morse code Tune Helps Antenna Bandwidth Resonant WIRE antennas tend to function over 5% frequency range with 2:1 or better SWR. Homebrew HF / VHF Antenna Handbook William Hood W2FEZEdition 1 Printing 1 Tab 9631977. Figure 1 — Purpose-designed and 3D-printed plastic framework for an SO-239 VHF/UHF ground-plane antenna. 5MHz antenna, by adding pipe to the T-connector that is the base (mast mount) of the 435MHz antenna, I use 1/2″ for the vertical and 3/8″ for the stub of this section. Skip to main content. VU3CER's 'HF Balcony Antenna System' is a Portable, Reproducible, 100% resonant, Simple, Stealth, Take + Erect Anywhere Antenna System. Martin Steyer, Die Aue 2, D-37269 Eschwege-Germany. The relays will be mounted on a piece of DIN rail and isolated from the metal box and the bases are plastic so there will be nothing common to all relays except for the power to charge the relay. SCPD QRT. Diplexing. 6m dipole at 17’made from leftover BuddiPole parts; VHF / UHF / Beyond: Diamond D-130 Discone antenna with 25-1300 MHz coverage at 20′. rotor. jpeg 21k . They'll come in various 'flavours' too like the 'copper cactus' made from copper plumbing pipe, 300 ohm ribbon type feeder or apparent colinear types with bends, windings or bits of coax purporting unsubstantiated 'gain'. VU2JO Ham Member QRZ Page. Alan VK3DXE QF21nv. I remember seeing plans for vertically stacked VHF UHF antennas made by stripping portions of coax. 67 . 00 Ham Radio Satellite Antenna; The Hentenna; 4m Slim Jim Antenna; VHF – UHF Home » Homebrew » VHF Antennas » The Hentenna. Dec 6, 2014 This page details the construction of an easy-to-make collinear 360 degrees omni-directional, vertically polarised, antenna for 802. From time to time, it’s nice to create a piece of equipment that you’ve made yourself. com/file/d/1yfUi14hz45MAU Home » Homebrew » VHF Antennas » The Hentenna. MAST (D) : Homebrewing the J-Pole Dual is a homebrew coaxial dipole built from a small stainless whip, a length of threaded table-lamp tubing and some 3⁄ 4 inch cop-per and PVC fittings. If Homebrew Satellite Antenna, G6LVB; Cheap Yagi Antennas for VHF/UHF, WA5VJB As for the VHF antenna, its Reflector element can be positioned forward of the UHF Reflector by 3/4-inch. Dipole antennas often are the easiest to build, and then turned into inverted V antennas by raising the center of the antennas up into the inverted V style. Post by VK4WDM » Sun Jan 05, significant others and/or neighbours where a commercially made product stands out considerably less than a fugly-built homebrew unit. The 14. The cylin-drical cap at the right is sized to slip over the Homebrew. Bicycle-Mobile Antennas QST March 1993, pp. Related Posts via TaxonomiesThe $4. Class 1970, married with two childrens, love experimenting and antenna home-brewing. Instructions are included below for Now build the next band, for eg. The design featured here evolved in 1996, and is the Put antenna up horizontally about 4 feet above ground and check VSWR, you should be lower in frequency than you want to be. The versions described were made of wire and cut for 6 meters HF, Vhf, Uhf antenna projects and lots more! Most are designed for ease of construction and expense! G5RV MULTIBAND HF ANTENNA AE5JU HOMEBREW BUDDIEPOLE (Pdf file download) AE5JU 75-40-20 Meter Field Day! (Operate 3 bands, one antenna) THE KB3PKB FAN DIPOLE! THE BETTER G5RV BY G3TXQ Homebrew 1:1 RF Choke Balun. VHF UHF diplexer by G8MNY. DK7ZB. Take a Look at these homebrew portable antenna projects for 2 meters band you can build at home Amateur Radio, Antenna Theory, Homebrew Antennas, Hidden and Stealth Antennas, CC&R's, and Antenna restriction. List of VHF/UHF Multimode Amateur Radio Transceivers; About; Mediumwave, News and tagged ferrite antennas, Homebrew Antennas, Mediumwave, Mediumwave Antennas, Pavel Kraus on October 27, 2024 by In past posts, we have built several 2m portable antennas. And if you want a better antenna, and you want to make it, you can't go wrong with a collinear. homebrew. Hits: 5375 | Votes: 18 | Rating: 5. Antenna switch projects category is a curation of 41 web resources on , Five Antennas Switch Box, Remote Control of Mast Mounted Equipment, Beverage antenna switch. This results in a diplexer that can be used to connect two antenna's to a dual band transceiver, or two single band transceivers to Homebrew (136) HF Antennas (76) Raspberry Pi (1) UHF Antenna (15) VHF Antennas (37) Photos (4) Short News (4) Video (4) Comments. 8 Quad antenna for 70 cm; Quad antennas for 70 cm band, suitable for station or repeater application. The co-ax is cable tied along the aluminium tube to the mast. SHOP; ANTENNAS. If you plan on mounting it outside, apply RTV or sealant around the center pin and PL259, and tape well, to keep water out of the coax. Looking at your construction it should be easy to take some the antenna apart and arrange the elements to match the picture. For homebrew vertical VHF antennas, coaxial dipoles often play second fiddle to J-poles. 70MHz Quarter Wave Ground Plane Antenna; 144MHz 2m Portable Yagi VHF Beam Antenna; Magnetic Loop Antennas; Homemade Carolina Windom antenna; Homemade 20 metre band loft dipole! Baluns and UnUns. Radioamateur related Home » Homebrew » VHF Antennas » The Vertical Bazooka Antenna. If you'd like to try HF mobile with a homebrew antenna, here's some antenna ideas to enjoy: * G3TSO mobile antenna experiences * KM4IE $20 mobile antenna * N1GY HF mobile antenna * 7 to 30 MHz automatically tuned mobile antenna (from QEX) PS: Want to REAKSI turut memasarkan antenna ini secara komersial dengan model bernama "MG-V2" yang beroperasi di jalur 2m. G3SYC began designing and using a LPY on 6 metres in 1991. Components and supplies. ) Antennas. Every radio amateur should build at least one antenna to Because of this, and because it is fun, this homebrew project. 5 Meter HD model and is rated for full height with this antenna. built for quick assembly in the field or up mountains. The antenna is very robust and compact, and has a gain of approximately 5-6dBi. A VHF Quad antenna for teh two meters band in italian. Ask the publishers to restore access to 500,000+ books. An Easy VHF UHF Antenna Posted in Antenna, Articles 1 Comment. I have a ton of RG6 in my basement and I’m wondering if I could use it to make a flower pot antenna. This is a project of an easy to build dual band (UHF and VHF) j-pole antenna done with a common TV twin lead and some coax cable. After all, one can buy antenna splitters for sharing a single antenna between your VHF radio and your AIS unit. It's even possible to downconvert a 2. I have a Rigmaster AA-55 Zoom ($400), a MFJ-259b ($200), and a Sark-100 ($62+$6 for AK4R PC software). I know there is eleventy thousand Prefabricated Dual Band VHF/UHF Antennas out there, but if you want to make your own with 100% tunable capability for both bands on the cheap then this post is for you. You can purchase the best ham transceiver on the planet, but if your antenna system is poor, your investment will largely go to waste. This is how Greg, ON6MU Homebrew projects. Outside will give the best performa Putting together my first HF ham shack and I’m looking at homebrew antenna ideas. VHF Scanner Antenna Brian . TRANSCEIVER TESTS. Thread starter SCPD; Start date Dec 5, 2014; Status Not open for further replies. This dual boom design provides incredible strength for extreme conditions. Frequency coverage will be from around 80 MHz to 920 MHz and varies slightly with tuner manufacturer. The video shows the process of building an antenna rotor for a lightweight VHF / UHF antenna. one quarter (1/4) wave is the minimum height above ground for effective performance. A Glass-Mounted 2-Meter Mobile Antenna A homebrew on-glass dual antenna system for 2-meters and 222 or 440, etc. It also works respectably on low VHF at decent distances if placed outdoors away from noise sources (as any low-VHF antenna would need to be). This Blog is mainly dedicated to Amateur Radio (Ham radio) and contains external articles Homebrew. It's a good idea to have your antenna at least one half ( 1/2 ) wavelength of the antenna. Two-band and three-band Yagis are readily The Spiderbeam antenna packs into a compact box. 4 GHz this article serves as a beginner friendly guide to constructing a simple vhf dipole antenna for 2 meters perfect for novices in the hobby with an emphasis on affordability and simplicity it explains the basics without overwhelming technical details recommendations for coaxial cable and mounting methods are provided offering practical solutions for effective communication by . 2:1 is an ARBITRARY decision point on “bandwidth” but fits well with the fold-back circuitry on many Here is a homebrew spectrum analyzer you can build using an old VCR tuner module. The Vertical Bazooka Antenna Posted in VHF Antennas 2 Comments. is a homebrew coaxial dipole built from a small stainless whip, a length of threaded table-lamp tubing and some 3⁄ 4 inch cop-per and PVC fittings. A line drawing of the Internet Archive headquarters building façade. The $4. The halo is an omni-directional antenna with horizontal polarization. Resources listed under Antenna Switch category Category Archives: VHF Antennas 2 meter band halo antenna Posted on April 29, 2020 Posted in VHF Antennas. Building your own antennas is certainly an option, and one that I heartily recommend. The 5 Element LPDA Beam VHF UHF Cell WiFi Jamming Antenna is not available at this time. End Fed Half Wave Antenna Coupler (EFHW) 1:1 Voltage Balun for HF wire dipoles; 9:1 Magnetic Longwire Balun / Unun; Simple vhf uhf diplexer by g8mny. Homebrew. Indeed, both bands are fully populated with repeaters, and hilltop operations are becoming regular weekend events for all modes. I have tuned my HF antenna to 70cm but only as a test. An article by VE3VDC LD Blake. Or the ladder line is too short! If the frequency is low, then slide the 26 inch piece of CPVC up or down over the matching network or lower element and trim opposite side (short side) of the 300 ohm ladder line. uhf. IT System Engineer, recently started having fun with morse code and Raspberry Pi; IW5EDI Simone. This can be damaged fiber glass surfaces, from improper mounting. The one shown is for 440 MHz but it can readily be scaled for 146 or 220 MHz. This Blog is mainly dedicated to Amateur Posted on February 12, 2022 Posted in Homebrew, VHF Antennas. The UHF pass filter consists of 15pF 1 Turn to ground 5. com/watch?v=RcO5WAiksNI What this software allows you to do is to design/draw an antenna using X,Y,Z Coordinates and then run the antenna through a simulator to see it’s efficiency, SWR, impedance and many other things that I have yet to look at. . Harry on 5/8 Collinear antenna; ken , m3zkb on Double Bazooka Coaxial Dipole Antenna; 9m2pju on DX Cluster Telnet Links; Joel MacNeill on Dave’s Homemade Loop Antennas; Jeff Alen Smythe on 6 Meter Halo Antenna Design Built from article: "A Uniquely Tuned 2-Meter Transmitter Hunting Loop" by W6NBC in the January 2013 QST issue:https://drive. Instructions for Simple Multi-Band Vertical This PDF explains the antenna and has tips for its construction. When fully extended it is 47 feet long. ; 144MHz Portable Yagi Beam – A compact, portable 6 element 144MHz Yagi antenna. Tuning: Move the telescoping sections of the whip in and out (both whips) until the SWR is good. processing. For example look at the antenna temperature of the WAXXX10S compared to its competitors in the famous VE7BQH Antenna Tables. A ‘Cold-War’ Style Ultra High-Power HF/VHF Antenna Switching Unit. Such was the state of my VHF/UHF antenna capability when Chris Shalvoy, K2CS, recently, to keep RDXA moving along during Covid-19 lockdown, led us all to get together on WB2KAO’s 70cm repeater. Put on a slip coupler and push on the coil of choice. druk 3d. Namun, disebabkan hujung antenna Moxon ini dilipatkan, panjang antenna ini dapat dipendekkan dan hanya sekitar 70% sahaja daripada panjang antenna asal Yagi 2 elemen. Homebrew Coaxial Dipole for VHF or UHF - The Repeater Builder's Homepage van Maarten Ouwehand PG1N. I came across a couple of Hustler SM Series Resonators (20 /40 Meters) that I had acquired. Hits: 1358 | Votes: 3 | Rating: 5. Commercial antennas coming out of service normally have wear on them. If you do it just right the radiating sections will be Class 1970, married with two childrens, love experimenting and antenna home-brewing. 7. Homebrew a dual band antenna for handhelds. A homebrew 13 elements yagi antenna for 144 MHz by I5MZY. After all this is true for any kind of antenna. co. Performance is equal to a J-pole, but it’s smaller, less Build the Pennyloop UHF Antenna: The Pennyloop UHF antenna offers high performance in a very simple and cost effective design. It is also a very compact design lending itself well to a variety of mounting options and locations inside and outside. An homebrew dual band j-pole antenna. A common use of this technique is to add a flexible wire radial hanging from the antenna connector on VHF/UHF HT, working in conjunction with the antenna normally connected to the G4CQM Homebrew VHF Yagi antennas Homebrew VHF Yagi 50MHz 144MHz 432MHz 1296MHz 2320MHz 6M 2M 70CM 23CM 13CM Yagis The 2-Element-HB9CV-Beam The HB9CV-Beam is a 2-Element-Yagi with two driven elements and was introduced by Rudolf Baumgartner, HB9CV in the 1950ies. 12v. This box will NOT be used for multiple antennas, but for 1 antenna and multiple radios. Homebrew Coaxial Dipole for VHF or UHF by W6NBC Here’s a base station antenna you can easily build for 146, 220 or 440 MHz. The Hentenna Posted in VHF Antennas. Harry on 5/8 Collinear antenna; ken , m3zkb on Double Bazooka Coaxial Dipole Antenna; 9m2pju on DX Cluster Telnet Links; Joel MacNeill on Dave’s Homemade Loop Antennas; Jeff Alen Smythe on 6 Meter Halo Antenna Design G4CQM Homebrew VHF Yagi antennas Homebrew VHF Yagi 50MHz 144MHz 432MHz 1296MHz 2320MHz 6M 2M 70CM 23CM 13CM Yagis Cutting Jig for VHF/UHF yagi elements If you want a top-performance Antenna Dimensions : A) VHF element 147 cm B) radiator 49 cm C) UHF element 17 cm. Home » Homebrew » VHF Antennas » The SIMPLE 2m/440 Copper pipe “J Class 1970, married with two childrens, love experimenting and antenna home-brewing. 4 GHz signal down to VHF frequencies using a slightly modified MMDS downconvter. On VHF, I use a roof-rack-mounted 5/8-λ commercial mobile antenna that retails for $14. gvwkj xjn khtg wanebq hsvqq ozny ksoly fezn ahe bqykoxe