Diy 70cm base antenna. Approximate cost: $35 (not including coax or tools.

Diy 70cm base antenna That’s where the most popular radios transmit, and where the most popular repeaters reside. 5:1 SWR points. And yagis or other directional Conclusions - Presented here is a novel base station antenna which covers the VHF (2 meter), 220 MHz, and 70cm amateur band. Dec 18, 2008 · This must be one of the simplest yet most effective DIY 2m/70cm antennas yet. 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. While this works great when I have The WB3AYW MULTIELEMENT COLLINEAR ANTENNA This is an introduction to a high gain VHF/UHF vertical collinear antenna program and project that can be an asset to many of you that are looking for more gain in a vertical antenna for base or repeater use. We construct these antennas to specifications provided by TN07 Engineering in our Shop located in South Louisiana and they are made using 304 stainless steel alloy. The best option is to use a diplexer or triplexer and use 2 or 3 antennas. I am not sure if it will make any difference using 3/4 Apr 28, 2015 · 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. ) This is an excellent performing J-Pole type antenna, constructed from readily available materials. Manufactures typically spec the usable bandwidth of their antennas at the 1. 14 GA Romex wire qty. This can make the pit thing hard. Homemade vertical dipole for HAM 2 meter and 7 Oct 10, 2024 · The HYS Dual Band Yagi Antenna is a top-tier choice for radio enthusiasts seeking exceptional performance in the 2-meter and 70-centimeter bands. 3 days ago · 70cm yagi antennas Pictures and plans to build 70 cm yagi antennas Bazooka dipole for 70 cm band Here is a very simple 70cms dipole from Harald PD2HFE, which uses a single piece of RG-213 coaxial cable 34 cms in length. 432 Mhz 8 Element Quagi Antenna How to build a 432 Mhz Quagi, using a wood-made boom, and gives a 13 DBI Gain 70cm Quadruple Quad Sep 24, 2022 · » 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. Any advice that you can give Wire Antennas for the Beginner QST June 1983, pp. The Sep 19, 2015 · This suggests moderate front-to-back ratio and wonderful forward gain over a whip style antenna–a successful 2 meter high gain antenna. Half-Wave Flower Pot Antenna 2M or 2m/70cm Dual Band Half-Wave Flower Pot Antenna – 2M or 2m/70cm Dual Band Sep 1, 2015 · Looking for a base antenna with some gain, that will cover ham and gmrs. Here is an inexpensive J-pole antenna that is easy to construct. I have some solid uninsulated copper wire currently. But am talking about using it to make a homebrew antenna. 5dBi on 70CM, this antenna ensures clear communication over long distances, making it the best 2m 70cm base antenna for both casual users and serious operators. The W7LPN 2 - 440 Vertical Collinear Antenna Project with a 6 Meter Surprise! by W7LPN ~ Rick Frazier UPDATE! Download the updated and easier to build (12-08) version It is a pdf file and is under 1 meg file size. Jul 11, 2018 · I’m looking to eventualy make some satellite contacts with a DIY antenna but don’t know what plans to go with. I really dont want to buy or install 2 antennas on my 2 seperate base stations. Not Includes: coaxial cable and radio. NET. You can build this with stuff you have laying around. The energy that normally goes straight up now goes out in a flatter circle at 360 degrees. This antenna can be used to receive the ham satellite communications with any portable UHF receiver. By N1HFX Recently the RASON technical committee was hard at work at the repeater site repairing our 2 meter repeater antenna. You are pretty limited if you want all 4 bands on one antenna. Elevate your ham radio experience. I was looking for something that was vertical, omnidirectional and with good gain that I could make quickly and easily. Bandwidth is normally 10 MHz on the 70 cm (440 MHz) band and 25 MHz on 23 cm (1200 MHz), making the antenna an excellent candidate for ATV repeater use. 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! Mar 19, 2023 · Following on from my PMR446 Antenna I decided to try my hand at constructing a 2m/70cm Vertical Dipole Antenna. This antenna is designed for amateur band frequency for both VHF (2m) and UHF (70cm). In about an hours time, and about $10 worth of materials, you can have a great performing omnidirectional j-pole antenna. But if you've never done it, you probably have a few questions. Also, the antenna is fed with only one coaxial cable and does not use a duplexer. The base antenna is pre-tuned, no tuning needed. It's really straightforward, even for beginners. An added bonus is an extremely low angle of radiation! The approximate gain is 9dbd+. The goal here is to put up a cheap, easy, and quick 2-meter antenna that is simple and unobtrusive, but works quite well. 4 days ago · A 146 Mhz J-Pole Antenna A 2 meter (146 Mhz) J-Pole antenna that is inexpensive, and easy to build. 6 ft Diamond antenna - why so long? They also seem to have radials at the bottom, which I thought weren't needed for a May 5, 2018 · W6TRW Amateur Radio Club – Home of the W6TRW ARC in Redondo When I purchased the unit for the van, I also purchased a magnetic mount antenna for the band, but when I got the unit for the house, I thought I would try to build a home-brewed antenna. 3mm stainless steel rod was used for the antenna It's a dual band 2m/70 cm yagi antenna made with common materials and cost very little to make. It’s made purely from a piece of coax cable, you can’t get much simpler. One of the members commented to me that I should write an article about collinear arrays so that we could all build our own. 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! Mar 29, 2025 · To feed the antenna, I decided to use an ABR Industries 2213A-SO-RT-1. » 2m/70cm Mobile Antenna » Seen as it's to tune a Antenna, this forums looks good? Find VHF/UHF Base Vertical Antennas 2 meters Band Coverage and get Free Shipping on Most Orders Over $99 at DX Engineering! Oct 25, 2023 · Good afternoon, folks. The base antenna is connected by copper rod to reduce power loss and make the base antenna have better RX and TX. Aug 26, 2024 · Hi All, I designed and built a moxon yagi dual band VHF/UHF antenna mainly for satellite QSOs, but it can be used for any portable VHF/UHF operation. That’s the the 1/4 wave ground plane antenna. See my previous "J Pole Antenna Stand" project here! This revision is easier to build while becoming more robust 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 Of all simple vertical antennas over ground, the 5/8 wave radiator has the lowest angle of radiation, however the base of the 5/8 antenna presents a relatively low impedance, not the high impedance offered by the 1⁄4 wave stub. not dbi! WB3AYW uses this antenna in repeater operation Here is a neat little antenna that is very easy and cheap to build. Here are some ideas for 70cm antennas: ARRL Find VHF/UHF Base Vertical Antennas 70 cm Band Coverage and get Free Shipping on Most Orders Over $99 at DX Engineering! In this tutorial i show you how to build a Yagi antenna for the 70 cm band (430-440 MHz). In my design I use 1/2" copper schedule M tubing and 1/4" soft copper tubing. You can hang them from a tree branch in the field, but what do you do when there are no trees around? I first tested the roll-up antenna with a collapsible fiberglass antenna mast and an umbrella base. 6dB colinear VHF antenna Building details of a VHF colinear antenna with 6 db gain 5/8 Collinear antenna A 5/8 wave stacked j-pole antenna plan 9 element yagi for 2 meters band A simple design Oct 19, 2023 · Discover the perfect balance: a simple dual-band vertical dipole, AN-SOF modeling, and real-world results. 4K subscribers Subscribe Looking for a homebrew dual band 2m/70cm antenna project. ) Perhaps the most A Simple 2 m/70 cm Vertical Dipole Antenna by KGØZZ 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. 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. This suggestion is a flop. Jun 3, 2021 · The 144/430MHz base antenna is made up of 3 sections of white fiberglass. 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. . This means that you can experiment without fear of wasting much material. Ideal for Base and Repeater Use – Designed for fixed installations, repeaters, and base stations, delivering dependable long-range communication. Here are some ideas for 70cm antennas: ARRL Feb 25, 2019 · 70cm is a good band for experimenting with antennas. I used 1″ thin-wall PVC pipe, aluminum tape, and RG-8X coax. 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). Both plans call for 3/8" stainless threaded rod which I will be using. Many Thanks Knight The NA4IT "CHEAP" Dual Band 2/440Mhz Ground Plane Antenna by Scott Duckworth 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. Free Shipping - Comet GP-1 Dual-Band VHF/UHF Base Vertical Antennas with qualifying orders of $99. The TV twin lead "J" is the "BEST"hidden transmitter hiding antenna I've ever used. The antenna include a stainless steel Antenna Mount with SO-239 Connector, 2 stainless steel 1″ band clamps, 2 stainless steel 1/4″ bolts, nuts and lock washers. 8:1 on gmrs. NOTE:PVC/ABS/plastic will affect the J's VSWR. com FREE DELIVERY possible on eligible purchases Mount the antenna in the location of your choice using the lower 5 ft. Feb 13, 2023 · Here is the list of parts needed to build a 2 meter vertical antenna: 3/4″ PVC pipe – Length to suit 3/4″ adapter 8xMPT 3/4″THD Dome Cap SO-239 connector 6ft. My thought is I want a roll up antenna I can huck into the tree that isn't super obvious. 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). The original Ed Fong Dual Band VHF/UHF 70cm/2m J-Pole PVC Pipe Antenna : Eye-On-StuffPlease consider donating to my channel so I can make more videos for you Jul 25, 2017 · Buy Dualband Antenna 2meter 70cm Mobile VHF/UHF Ham Radio (137-149, 437-480 Mhz) Mag Mount Magnet Base PL-259 Connector, 10 Ft RG58 Cable: Antennas - Amazon. 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. Heavy-duty fiberglass construction greatly improves the outdoor working life of the antenna. Unfortunately, this ended-up being the most expensive component of the project at roughly US$35. Jul 24, 2021 · That means you might get away with an antenna the works over the range of two services, like Ham 70cm and GMRS, or Ham 2M and MURS. 18-16 to 18. anyway that got me thinking can I do A Quick and Simple 2 Meter Ground Plane Project! If you are just getting experience in building antennas or you are an old pro, here is a simple and fun project! This antenna is perfect for those hams living in the primary coverage area of the repeater for 2 meter use. Simple j-pole antenna for 2 meter how to build a J-pole antenna for 2 meter band with many photos ecc. The simplest of all antennas to build for any band is an end fed vertical dipole. Constructed with durable materials Conclusions - Presented here is a novel base station antenna which covers the VHF (2 meter), 220 MHz, and 70cm amateur band. Rugged Fiberglass Construction – Built with heavy-duty materials and Apr 19, 2021 · Section 1: antenna tutorial How to build a turnstile antenna for a 70 cm band (~435 Mhz)? Materials: pipe for the body - I used casual hydraulic PCV from the construction shop holders for the rods - for me, the 3D print from ABS was the most convenient (if you want to reuse the project, you can find it on GitHub) Oct 17, 2013 · Product Description Triband Amateur Vertical Base Antenna, Covers the 6 Meter, 2 Meter and 70cm VHF UHF Bands If I'm interested in a 2m / 70cm antenna for my home's roof, wouldn't a vertical dipole be among the most obvious choices? For a half wave antenna at 2m, it should be about 1m or just over 3ft. Jan 13, 2024 · DIY 2 meter / 70 cm bandpass filter for satellites. Roll up “slim jim” antennas are an excellent choice for your go bag. Local friend was 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. Many improvements have been made since my original article "Omni-Gain Collinear for 70 cm and 23 cm" was first published in the May 1982 issue of 73 magazine. We appreciate Scott, NA4IT sharing it with us. I have two different plans that I found on the internet. Looking for a simple yet effective DIY antenna? In this video, I build a PA0FBK coax antenna using RG58 cable—a compact and efficient design perfect for VHF/UHF applications on the go. Ham radio base station plays a vital role in transmitting signals. One of the easiest and quickest antennas to build is the Vertical Bazooka, which is made entirely from RG-8U coaxial cable. Ground-plane Antennas for 144, 222, 449 MHz ARRL Antenna Book, 18th Edition, pp. The j-pole antenna is basically an end fed half wave dipole that uses a 1/4 wave shorted matching stub as an impedance The 70cm Townsman Aerial By Dave, M0UXB (Experimental) Updated with additional information (02-08) If you plan on experimenting with this design, pay close attention to all the updates in the article. Build the antenna using any tips and tricks that YOU can apply to the construction to make the vertical dipole construction go smoother for you. Yagi antenna will significantly increase the range of your device. This antenna is nothing more than the old standby "Droopy Groundplane" and can be used on any band where it's physical size Feb 11, 2014 · Build a high gain 2 meter vertical collinear antenna. Matching is excellent on all three bands and can be tuned independently. Sep 12, 2024 · Hi All, I recently built a super simple and affordable dual-band 2m/70cm antenna using a PA0FBK design. 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. I tested and found the Best 2 Meter Base Antenna to provide superior range and clarity. Both call for 1/2" EMT conduit. It’s been months since we 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 Aug 24, 2013 · I am going to build a dual band j-pole antenna. Jpole or a flower pot or a dipole or maybe something different. Sure, it doesn’t have the best gain or cross-polarized elements, but it’s simple to build and doesn’t cost the world. Standard 1/4 wave verticle will radiate in a spear like way. Shop VHF/UHF Base Vertical Antennas at DX Engineering. 33-38 Every ham knows how to make and install wire antennas. But the options I see for sale are mostly all longer than this, such as this 5. I uses a piece of RG58 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 Feb 25, 2019 · 70cm is a good band for experimenting with antennas. 5dBi on 2M and 11. Ground plane antennas are easy to recognize by their appearance. » 2m/70cm Mobile Antenna » Seen as it's to tune a Antenna, this forums looks good? Sep 24, 2022 · » 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. I have commercial radios for gmrs and ham. 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. Fortunately there is an antenna that is inexpensive and simple to build with a minimum amount of parts and tools. Any help in finding ways to build it please let me have them. I was thinking using steel whip and coax to make 2m 7cm dipole. Jul 30, 2021 · Buy TWAYRDIO 7 Elements UHF Yagi Antenna,11dBi 70cm 400-470Mhz Outdoor Directional Yagi Base Antenna for GMRS Amateur Radio, Satellite Work: Antennas - Amazon. Homemade Full Wave Dual Band Antenna For 2 Meter & 70CM’s Measurements To Make It Fuzz The Pi Guy 10. 39 dBi (70cm) at 14 ft The Origins In 2012, as I re-entered Amateur Radio, I dug out my old Yaesu FT-5100 that covered 2m/70cm bands for FM. However, if mounted outside, then an earth ground to the conduit is recommended. See my previous "J Pole Antenna Stand" project here! This revision is easier to build while becoming more robust Copper Cactus Dual-Band Super J-Pole Antenna Project 2 meter 70 Cm Home brew antenna All the materials except the S0239 fitting can be found at any good hardware store, and the whole antenna can be made in less than an hour. Copper Cactus Dual-Band Super J-Pole Antenna Project 2 meter 70 Cm Home brew antenna All the materials except the S0239 fitting can be found at any good hardware store, and the whole antenna can be made in less than an hour. Fur-thermore, most of our area, neighborhood, city, ERC, and county emergency and prepared-ness nets are assigned to 2-meter frequencies in our county. So more of a pizza less ball. Today we’re going to build a simple ground plane for the VHF 2 meter band. 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. (Step-by-step instructions with photos can be seen below, following the project description and safety disclaimer. The Townsman aerial was designed by Bernard Howlett, G3JAM, in the late 1970s and published in the UK journal "Wireless World" in February 1980. ~~~~~~~~~~~~~~~~~~ I would like to share with you my findings and my design of the well known vertical collinear antenna, by looking at the work of two other Aug 21, 2018 · To the rescue, would be an external antenna. 17 (If you can't find aluminum rod or wire or welding rods, try metal coat hangers - they work too Aug 5, 2016 · SPROUT (left, SSTV?) and ITUPSAT-1 (right) UNISAT-6 (left), XI-IV (right) Firebird-4 (wide data?) Conclusion Want to chase an amateur satellite? Well as it turns out, it’s not so much work to build a serviceable antenna. Potential uses for 70cm antennas include FM and repeater work, long distance SSB contacts, digital modes and satellite communication. Build A 9 dB, 70cm, Collinear Antenna From Coax Recently the RASON technical committee was hard at work at the repeater site repairing our 2 meter repeater antenna. 2-meter Two-element Collinear Antenna Seems like most of us spend much of our ham radio time on 2 meters, and rightly so. 4 4-40 stainless screws qty 8 4-40 stainless nuts 50 ohm coax Length to suit An inexpensive and readily available way to get 14 ga. Here are some answers. 37 dBi (2m) and 7. The antenna proper, is nothing more than a vertical dipole with a balun near the feed point to help reduce feedline radiation and should give a better pattern. now get building and enjoy this simple and easy dual bander! Materials needed: (1) SO Find VHF/UHF Base Vertical Antennas and get Free Shipping on Most Orders Over $99 at DX Engineering! Not so long ago I built my version of The Home-Brew SKYLAB Starduster for 26 - 30MHz, Super simple to build with just 10 metres of wire and a length of coax. com FREE DELIVERY possible on eligible purchases Nov 27, 2010 · Simple stacked J-pole for 2M & 70cm Following the death of my cheap fibreglass tri-band collinear, I decided to have a go at constructing a simple dual band antenna for use at home. This antenna is nothing more than the old standby "Droopy Groundplane" and can be used on any band where it's physical size Nov 17, 2008 · Homebrew 2m, 70cm mobile antenna by knight » 05 Feb 2010, 12:10 Hi there I like to build a Homebrew 2m, 70cm mobile antenna with a BNC plug to put onto a magnetic base that has the BNC ready for it. Preferably I can use with my ht, but eventually I'll get the mobile radio setup and coax run into my office. Oct 31, 2015 · I have a old cobra magnetic mount antenna. I am curious to see if anyone knows of a short base antenna that will do 2m/70cm/GMRS, that is as short as possible? Want to put up a base antenna but don't want the HOA to start *****in, moanin, and complainin. I hope you guys I don't want to do a permanent antenna install yet, mostly cause I want to plan out a coax entry box. What it means is it is flattening the spear. Upgrade your base station setup with this top-rated antenna now! A Quick and Simple 2 Meter Ground Plane Project! If you are just getting experience in building antennas or you are an old pro, here is a simple and fun project! This antenna is perfect for those hams living in the primary coverage area of the repeater for 2 meter use. I put together a short video showing how to build it. The "J" offers thefoundation for a stealth antenna by placing the antenna in PVC with an angledmounting box - the antenna can look like a gas/sewer breather pipe on the roofof CCR restricted house. Have some you guys done this before? I have read this thread and saw the negative post. Unless you need very high gain the antennas are small. This antenna is based on the same ideas as my 2 Meter J-Pole construction plans. Gain in antennas is based entirly on directionality. 2m/70cm Dual Band J-Pole by KK4ICE If you have any questions about this project, contact KK4ICE@ARRL. Jan 4, 2020 · HYS UHF Yagi Antenna for use with repeater systems, data radio, base stations, mobile radio, two-way radio etc. Plans, instructions and parts list. It was an interesting dual-band design, but Amateur Radio, Antenna Theory, Homebrew Antennas, Hidden and Stealth Antennas, CC&R's, and Antenna restriction. While it is not always feasible to home-brew a commercial quality antenna designed to take hurricane force winds, it is very feasible to built a Conclusions - Presented here is a novel base station antenna which covers the VHF (2 meter), 220 MHz, and 70cm amateur band. If you have an antenna with omni directional gain. Hence, the importance of a ham radio base station antenna is undeniable. Vertical dipole style seems the ticket. Approximate cost: $35 (not including coax or tools. Any advices what to try? NOTE: Comparative testing of this antenna against one without the "choke" showed that the choke is NOT needed. Aug 26, 2022 · So I decided to go with a simple vertical antenna of some sort that I could easily attach to the top of a 10m spider pole and pop up in the garden without too much hassle. It is ideal for Technician class hams needing a "first" antenna, and also a very good "emergency" antenna for use during Skywarn events when you don't want to be on the sky hooks tall in the sky! This little antenna is very functional on 2 meters and 70 centimeters. of the pole. UHF YAGI antenna working for 400-470Mhz mobile car radio/2-way radio, such as Kenwood Motorola, AnyTone, BaoFeng, Wouxun. 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. Adobe Reader required. There are lots of good dual band 2m/70cm antennas and you can use separate antennas for 6m and 10m. The seller 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 Of all simple vertical antennas over ground, the 5/8 wave radiator has the lowest angle of radiation, however the base of the 5/8 antenna presents a relatively low impedance, not the high impedance offered by the 1⁄4 wave stub. Mar 1, 2022 · How To Build A DIY 2M Roll-Up Slim Jim Antenna (Including How To Crimp A PL-259 UHF Connector Onto RG8X Coaxial Cable): Step-By-Step Instructions Build your own dipole from coax (PROJECT COURTESY OF VE3VDC - L D BLAKE (See update at bottom of article before building) Every radio amateur should build at least one antenna to prove to themselves they can improvise in an emergency. And you don't need much room either. Discussion in ' Videos, Podcasts, & Blogs ' started by K4SDV, Jan 13, 2024. So far best i have found is really good on ham and 2. 5 from Ham Radio Outlet. 70cm actual test results: Unfortunately my current results on 70 cm are not impressive. copper wire is to go to the hardware store and buy some Romex wire. Any suggestions work be appreciated. PA0FBK Feb 5, 2016 · About this item Dual-Band High-Gain Design – Optimized for 2m (144 MHz) and 70cm (430 MHz) amateur radio bands, ensuring powerful signal transmission and clear reception. The plan for a Vertical Bazooka is in An antenna for frequency F will also be resonant near F*3, so you may not even need 70cm elements. It seems to perform pretty well, and is easy and inexpensive to build. I plan on using 3/4" copper pipe. This is so I can use my 2m and 70cm handheld in the car. This antenna does not need a ground to operate correctly. I would like to build a dualband 2m/70cm yagi to transmit from my HT and receive with a handheld scanner I have. Are you ready to establish a home station for FM ops on the VHF and UHF bands, and are you wondering what you need to do about an antenna? Let’s review some of the things you need to consider in establishing a highly performing antenna for your home station, including antenna types, coaxial cable characteristics, connectors, and more! Jun 12, 2016 · Not too tall, but the base coil design makes up for lack of a great ground plane (ie can function without it but with reduced gain). Thanks in advance for any advice! 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. May 27, 2019 · A while back I purchased an Ed Fong dual band (2M/70CM) DBJ-2 antenna for field use. With impressive gain levels of 9. In the picture attached, I am wanting it on the patio Jul 8, 2015 · The Slim Jim is probably one of the cheapest and easiest antennas to make, and it’s a very handy one too. Great antenna. Many antenna manufactures have their own version of a 2m/70cm antenna that is 1/2 wavelength on 2m, and they all are similar in height, have some type of coil in the middle and a coil at the base. Jun 24, 2020 · A Covid-19 Dual Band 2m/70cm Antenna for $9 5. Because of the dual band capability, this antenna could become your primary antenna for field use, mounted under the eves of your house, from a tree in your yard, on your deck Sep 8, 2018 · A Simple 2 m/70 cm Vertical Dipole Antenna by KGØZZ 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. dbkpwu qjsu itk ifffru spnym jihi ttgqcztj pjsya duyufj gsjwe fgzn xdeothkv lthoe ccgtj dnjv