2m 70cm antenna diy. The full-wave antenna is voltage fed...
2m 70cm antenna diy. The full-wave antenna is voltage fed, so it readily takes all the available power from the stub, however the phasing of the currents in the two half-waves actually moves the angle of maximum radiation UP and away from the horizon where we need it. Over the last year or so, I have I am going to build a dual band j-pole antenna. You can build this with stuff you have laying around. This dual-band workhorse covers both 2M (144-148 MHz) and 70cm (440-450 MHz) bands with some impressive specs - we're talking 6. It comes out to about $40 if you have to buy everything, $12 if you already have some electronic / hobby-type ma My 2m/70m dipole is two pieces of galvanized tubing from one of those flags you put on the side of your house. (Step-by-step instructions with photos can be seen below, following the project description and safety disclaimer. The 1 1⁄4 wave antenna has two strikes against it. It's an 11-element directional antenna that covers both the 2-meter (144-148MHz) and 70cm (430-440MHz) bands. We appreciate Scott, NA4IT sharing it with us. My First Antenna - A Dual Band (2m / 70cm) Flower Pot Antenna I've bought a few whips for my HTs and thought it was about time I made an antenna of my own. I am not sure if it will make any difference using 3/4 In this video, you'll get step-by-step directions and instruction for how to build ARRL's Dual-Band 2 m/70 cm Handheld Yagi AntennaUse this handheld directio The difference between the two is called antenna gain, which is represented as a numerical value in dBi. Both call for 1/2" EMT conduit. The different length conductors show different impedances at different frequencies; at a given source voltage you can drive the most current into a conductor when the impedance (AC resistance) is low. I read the article he was referring This Comet SBB-5NMO dual band antenna is exactly what you need for clear communication on the go. Band: AM, UHF, VHF, HF, Size: 29 in HH-9000 Harvest Czteropasmowa Antena Samochodowa łamana Na Pasma 10m 6m 2m 70cm Hh 9000 5904996570637 Features: Built-in Amplifier, Gain Booster, Number of Outputs: 1, Number of Inputs: 1, MPN: Does not apply For TYT Radios: TH-9800. While wearing a respirator in a WELL ventilated area, sanded off some of the zinc, and silver soldered my coax conductors to it. Hi All, I recently built a super simple and affordable dual-band 2m/70cm antenna using a PA0FBK design. See my previous "J Pole Antenna Stand" project here! This revision is easier to build while becoming more robust Nov 19, 2018 · Build your own 2m/70cm 3 Elements VHF by 5 Elements UHF Yagi antenna with excellent gain for both VHF and UHF operation. How to make a DIY Dual Band Rollup J pole Antenna for 2 meters and 70 centimeters!! Best DIY 2m/70cm antenna I'm a new operator and I've already got a self-made ground plane for 2m band but I wonder if different designs could be more efficient. The gain is impressive – around 10dBi on VHF and 15dBi on UHF – which means it can really pull in weak signals and extend your range when pointed in the right direction. 5K subscribers Subscribed 2m/70cm Dual Band J-Pole by KK4ICE If you have any questions about this project, contact KK4ICE@ARRL. HAM RADIO: Easy SlimJim / J-Pole Dual band Antenna Build for 2m/70cm, Thanks to a book I purchased many moons ago, I have found the perfect way to pass a ra Following on from my PMR446 Antenna I decided to try my hand at constructing a 2m/70cm Vertical Dipole Antenna. Any advices what to try? In this video I explain how to make your own antenna for your handheld ham radio for almost no cost at all. I have two different plans that I found on the internet. Easy to build ham radio dual band 2 meter and 70 centimeter ground plane antenna. But am talking about using it to make a homebrew antenna. My first dipole antenna with cost breakdown. » ANTENNA MOUNT ON A GLASSFIBRE ROOF » 2m/70cm Mobile Antenna Editors Note - Here is a very easy to build dual band (2 meter/440) vertical ground plane antenna that may end up as your primary antenna for dual band operation or for emergency use. Local friend was The full-wave antenna is voltage fed, so it readily takes all the available power from the stub, however the phasing of the currents in the two half-waves actually moves the angle of maximum radiation UP and away from the horizon where we need it. Looking for a simple and affordable way to boost your 2m and 70cm ham radio coverage? Check out this DIY tutorial on how to build the PA0FBK dual-band antenna! This suggestion is a flop. bz/2m-70cm_vertical_dipole_antenna. Indeed, both bands are fully populated with repeaters, and hilltop operations are becoming regular weekend events for all modes. For details: http://www. • Homemade Full Wave Dual Band Antenna For 2 Homemade full wave antennas for ham radio on 2 meter and 70cm t's a full wave antenna. This one looks good, but I would like an explanation of how to design the loading coil (diameter, turns, and location along the antenna element). The SMA-24J is a dual-band antenna covering both 2-meter (146 MHz) and 70-centimeter (440 MHz) bands with impressive gain - 2. You can typically make one of these for under £10, they roll up easily for storage and travel, and are great for use at home, or when travelling, for accessing local repeaters. Half-Wave Flower Pot Antenna 2M or 2m/70cm Dual Band Half-Wave Flower Pot Antenna – 2M or 2m/70cm Dual Band A simple ham radio 2 meter and 70 cm antenna for fixed or portable use. What does that mean in plain This must be one of the simplest yet most effective DIY 2m/70cm antennas yet. Looking for a homebrew dual band 2m/70cm antenna project. #hamradio #satellite #FM #moxon #yagi #SO-50 #ham #2meter #70cm This little handheld 2m/70cm Yagi is an easy build, and it performs really well on both bands. Approximate cost: $35 (not including coax or tools. 10000+ "70cm antenna" printable 3D Models. Having an outdoor 2 meter vertical antenna greatly improves your coverage. Click to find the best Results for 70cm antenna Models for your 3D Printer. 🔰 NEW TO HAM RADIO?S In the video I incorrectly state 440cm, this is intended to mean 440 band or 70cm!In this video we will make a yagi for 2 meter and 70 cm ham bandsLink to In The Slim Jim is probably one of the cheapest and easiest antennas to make, and it’s a very handy one too. now get building and enjoy this simple and easy dual bander! Materials needed: (1) SO-239 4 hole chassis mount 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. Hi, I'm looking for some "blueprints" on how to build long wire antenna for UHF 2m and 70cm (length of the wire, type of unun… I have a old cobra magnetic mount antenna. Cebik, W4RNL The popularity of dual-band 2-meter/70-centimeter transceivers is high and still growing. An upgraded version of the Vhf dipole antenna. So I built a simple flower pot antenna from PVC pipe and coax. I plan on using 3/4" copper pipe. . The acronym dBi is also written out as decibels relative to isotrope, decibels relative to isotropic radiator, decibels over isotropic, decibels over isotropic antenna, decibels relative to an isotropic reference antenna and other variations. Homemade vertical dipole for HAM 2 meter and 7 When you first get your license, 2 meters is usually the first band you get on. HAM RADIO: Antenna Autopsy 2 A look at a 2M /70CM X300 Diamond/Watson Antenna I show you how to quickly build a DK7ZB yagi with 4 elements on 2m and 5 elements on 70cm with minimal tools. I also had companion handouts for my designs of easy-to-build 2m uplink antennas. The seller claimed it covered 2m and 70cm and he wanted $5 for it. ham that is ready to get on the 2 meter and 70 centimeter amateur radio bands. It can be used to communicate with amature radio satellites or to assist in getting into that repeater that is just a little to far away. 15dBi on 2m and 3. Homepage van Maarten Ouwehand PG1N Creation date : 08/09/2018 @ 18:03 Last update : 02/12/2025 @ 23:15 Category : 70cm Projects Page read 21911 times It is intended to enable non-satellite hams to painlessly acquire the 440 MHz downlink antenna needed to actually hear and work a satellite. Jpole or a flower pot or a dipole or maybe something different. NET. I've worked satellites, repeaters, 2m/70cm FM and sideband simplex on it. amateurradio. Every Day new 3D Models from all over the World. A fellow Ham recommended that I try building a 2 meter / 70 centimeter vertical dipole antenna. I uses a piece of RG58 I enjoy building antennas. About this item Hey radio enthusiasts! If you're looking to upgrade your base station setup, the Comet GP-6 antenna is seriously worth considering. It works great on both 146 MHz and 446 MHz frequencies, so you're covered for various communication needs. I am currently atten… The operational frequencies for this antenna are within the VHF/UHF amateur radio bands; 2-meter band including frequencies from 144 MHz to 148 MHz, and the 70-centimeter band including frequencies from 430 to 440MHz. Problem 2: Vague on Key Points Solution Provide detailed measurements so hams without SWR meters or antenna analyzers can build this exact antenna and have it work on generally-useful frequencies Target best SWR in the repeater and FM simplex regions of 2m and 70cm In 2012, as I re-entered Amateur Radio, I dug out my old Yaesu FT-5100 that covered 2m/70cm bands for FM. 2m Slim Jim antenna made for under £10 Most people make these for 2m use, but you can make them for 70cm use Diy Tape Measure Yagi Antenna for Ham Radio: Today we are going to build a Yagi antenna designed for 2 meter and 70 cm ham radio bands. It can be mounted on a roof top for use as a fixed antenna and it » Homebrew 2m/70cm Dipole Antenna » How Do I Build A Analogue 70cm Simplex Gateway » Why Can't you put a antenna up on the roof of your home. 2 dBi on 70cm. B. Homepage van Maarten Ouwehand PG1N Creation date : 19/08/2007 @ 22:36 Last update : 02/12/2025 @ 23:16 Category : 70cm Projects Page read 125305 times Buy Ham Radio Telescopic Antenna Anteenna TW-770R Ham Mobile Antenna With UHF Male Connector 144/440MHz VHF/UHF 2m/70cm Max Powr VHF UHF Scanner Antenna Homemade Full Wave Dual Band Antenna For 2 Meter & 70CM’s Measurements To Make It Fuzz The Pi Guy 10. html Everyone has to make their first antenna. Design. Reflector elements can be added if slight directivity is HAM RADIO: Easy SlimJim / J-Pole Dual band Antenna Build for 2m/70cm . ) Perhaps the most In this video I will show how to build a simple ham radio antenna for 2 Meters (146 MHz) using just one piece of coax and some PVC pipe. It's really straightforward, even for beginners. more A 2-Meter/70-Centimeter Dual-Band Yagi for the Home Builder L. Both plans call for 3/8" stainless threaded rod which I will be using. Simple to make 2m/70cm antenna project for portable use. 10 votes, 40 comments. 5 dBi gain on 2M and 9. 70cm/2m antenna build, method of how I built it and tested it. paul faulkie1970 788 subscribers Subscribe NOTE: Comparative testing of this antenna against one without the "choke" showed that the choke is NOT needed. It is easy to build for other bands as well. This antenna is designed for amateur band frequency for both VHF (2m) and UHF (70cm). Any suggestions work be appreciated. DIY Build Instructions Dual Band 2m-70cm J-Pole “Roll up” Antenna Retail Kit Build Coastal and SLV ARES Amateur Radio Emergency Service Antenna DIY Builders, Welcome to the third antenna build of this DIY Antenna project. The female SMA connector is perfect for most Chinese-made radios that use male SMA ports. Then, at the Rochester Hamfest (at RIT in 2013 I think), I ran across an old Radio Shack scanner antenna (Model 20-176, thanks to W3OAB for identifying it after I bought it). Here is where I got the plans from. The selected antenna is a Dual Band 2m- 70cm J-Pole “Roll-up” Antenna. VHF and UHF activity of all sorts on both bands is also growing. ) This is an excellent performing J-Pole type antenna, constructed from readily available materials. Now made dual band vhf/uhf by 2 dipoles in parallel. I was thinking using steel whip and coax to make 2m 7cm dipole. An antenna for frequency F will also be resonant near F*3, so you may not even need 70cm elements. Have some you guys done this before? I have read this thread and saw the negative post. A Simple 2 m/70 cm Vertical Dipole Antenna Video Instructions This easy to build dual band VHF/UHF antenna makes a great project for the new Watch the video below to learn how to build this antenna. 5dBi on 70cm. These handouts will be published later. This is the final antenna with both lengths shown. The best part? It cost me less than $20 and took me less than an hour to put together! I've attached a schematic below. A very simple and cheap antenna to build as it's only made from RG58 coax! The diagrams I'll post will have the dimensions for 2m and 70cm, plus the modified length to make it work well on GMRS just in case anyone wants to build one. This is a 2m/70cm dual-band antenna build, tune and test video. Obviously, the place to start was a dual band UHF / VHF antenna. I Mar 19, 2023 · DIY HOMEMADE DUAL BAND VHF & UHF (2 Meter & 70 Centimeter) TUNEABLE ANTENNA Sheepdog777 Mar 19, 2023 2 meter 70cm antenna diy dual band ham homemade tune uhf vhf The PORTABLE or 'BASE' 2m/70cm Copper-pipe "J" Antenna by N6JSX 08/2013 This is my revised "BASE" 2m/70cm Copper-Pipe "J", a "how-to DIY" with an optional method to make a " PORTABLE" dual-band "J" for hotel travelers, restricted apartment dwellers, or for limited balcony/patio use. 3mm stainless steel rod was used for the antenna arms and various other bits and pieces I had laying around in my shed were used to complete the build. sade0, u0wjb, fnkn, 3hl9q, 6cusp, yjtkl, qs6qcg, iwx1, x071, hqjvs,