Use a pair of hose clamps, and secure them firmly. Step two is to mount the slightly shorter measuring tape, known as the director, across the PVC tee. Like the first connection, make sure the clamps are firmly attached, and center the tape on the tee. Step three is to prepare the coax. You have a 6′ SMA extension cable in the kit.Practical 2m-70cm Antenna, Amateur Radio, Amateur Radio Innovations, Antenna Design, Antenna Design Techniques, DIY Antenna, DIY Antenna Projects, Duct Tape Antenna, Emergency Communication Antennas, Faraday Cloth Antenna, Faraday Material in Antennas, Ham Radio, Ham Radio Antenna, ham radio DIY, Homemade Radio Antenna, Lightweight Antenna ...This time I found an old fence wire, a piece of wood, and decided to make a yagi antenna. I already made an antenna like this a few years ago. Very simple. T...This little antenna is cheap and easy to build, lightweight, and very functional on 2 meters and 70 centimeters. The finished product will look like this: Let's get started! For the welding rods you need the following: (1) piece 25 & 1/8 inches long. (2) pieces 6 & 1/2 inches long. (2) pieces 19 & 1/2 inches long.I got around to building a DBJ-2 Roll-up 2m/70cm J-Pole Antenna yesterday. It's wasn't hard at all. The most difficult part was cutting the sheath of RG58 and RG316 off without cutting the ground braid. The trick was in a video - you bend the coax and just glide a blade over the sheath where it's stretch and it pops open - kind of like ...Larsen NMO2/70B Dual Band Coil and Factory Tuned Black Whip for 2m/70cm Amateur Radio Frequencies, BLACK with NMO VHF/UHF antenna, Connector: NMO, Height: 34.5 inches VHF: Center Loaded 1/2 λ (144-148 MHz) UHF: Collinear (440-450 MHz) Gain (2m/70cm): 2.4 / 4.0 dBi Max Power: 100W, Color: Black This antenna is compatiblNow its time to add the additional elements to the top and bottom of the collinear array. First add a ¼ wave element to the top of the antenna as shown in Figure 3. Use #16 solid wire or similar and solder it to the center conductor only. The length of the ¼ wave element is calculated as follows: 1/4 wavelength radiator = 300 / F / 4.Team members at Solana-based decentralized exchange Raydium are proposing the creation of a bug bounty program worth 10 million RAY tokens (about ... Team members at Solana-based d...Hi there, G1ZMA kindly decided to build me another antenna for 2m and 70cm and here it is. Amazing what you can achieve with a metre and a bit of old RG58 an...Business education is, let’s face it, finding it hard to keep up with a $3 trillion global tech startup economy that’s booming right now. High-growth companies are time-starved and...Get your antenna outside, especially if you are using 2 meters. The shorter 70cm waves have a much easier time getting through window openings than the longer 2 meter waves. There are many simple choices that don't involve trying to put a large antenna on a roof. A magnetic mount antenna for a car placed on a window air conditioner works well.Dualband Antenna’s. 2×4 2m/70cm Compact Satt Comm Antenna; 2×3 2m/70cm Cross Yagi – compact build; Build 3 x 5 2m/70cm Cross Yagi 145-435Mhz; Build the 3 x 5 Elements 2m/70cm Yagi; VHF antenna’s. 2 Elements Yagi 144Mhz; 7 Elements Yagi for 146Mhz band build; 2 Elements Yagi build for 107Mhz FM Band; …A really quick antenna for 2 metres and 70 centimetres, made from just 2 metal coat hangers and a small length of strip connector just add the fun.Next time...You can actually make a good 2m/70cm antenna that way by using a 2 m dipole and a close spaced 70 cm 1/2 wave element, or two 70 cm 1/2 wave elements one on each side of the 2 m dipole. The radiation pattern on 70 cm will be similar to 3 1/2 wave collinear array and will have around 3 dBd gain. Not many people know that.Slim-Jim Antenna 2m / 70cm This antenna is has a special name here in Austria, some folks call it "president's antenna" due to the fact that OE3MZC the president of the OEVSV did a presentation on the IARU YOTA meeting in 2017. This report documents my building project one day before a planned SOTA activation where I want to use it.Feb 22, 2017 · About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...I created a video a few weeks ago showing how to create a 4:1 BALUN using coax. In this video I created a 4:1 BALUN for the Amateur Radio 2-meter band, cent...You can actually make a good 2m/70cm antenna that way by using a 2 m dipole and a close spaced 70 cm 1/2 wave element, or two 70 cm 1/2 wave elements one on each side of the 2 m dipole. The radiation pattern on 70 cm will be similar to 3 1/2 wave collinear array and will have around 3 dBd gain.Duoband Yagi 2m/70cm with 4 Elements on 2 m. and 5 Elements on 70 cm and one Feedpoint. Version 1: Ultralight with 3,2-mm-Elements. Version 2: With 8- and 10-mm-Elements (see down), built by SQ9VPA. The 4-El.-Ultralight-Yagi for 2m can be used on 70cm with an SWR of 1,5 without any changes. The pattern and the currents of the Yagi are shown down.Make your own 2m band dipole antenna that's easy to make and doesn't cost much. It works so well that you don't need anything else!I am updating my blog week...A Homebrew Four Element 2 Metre Portable Yagi Antenna; Build your own roll up slim jim antenna; DIY 2M Ground Plane Antenna; The Coat Hanger Antenna; Ham Radio Travel Kit (TSA compliant) 3 Easy Multi-Band HF Antennas You Can Build; Solar Cycle 25 is here--bands are heating up; Simple portable HF antennas with Tim (G5TM)Here is the list of parts needed to build a 2 meter vertical antenna: An inexpensive and readily available way to get 14 ga. copper wire is to go to the hardware store and buy some Romex wire. The first thing to do is to strip the copper wire out of the Romex wire sheath, then you will see a bare wire, a black and white wire. then strip off the ...I'm confident you will find this portable "J" to far exceed any other antenna, in the same setup, to more than tripling your 2m & 70cm (440MHz) performance! Here is a step-by-step to make a portable (or base) 3/4 inch copper-pipe "J" that breaks down into four (~24" long) pieces for easy transporting. This design uses a Bungie-cord to keep all ...Here's a small 2m / 70cm diplexer that is good for up to 10W of power, perfect for working satellites with a HT. The design comes from KI0AG and was originally published in the November-December 1997 AMSAT Journal. It consists of two Chebyshev low-pass / high-pass filters designed for the 2m and 70cm Amateur Radio bands.Presentation by Joe EI6EG on the construction of a 2m - 70cm Dual Band "Eggbeater" Antenna.Joe's project design is from an older ARRL book. However, there a...Build your own 2m/70cm 3 Elements VHF by 5 Elements UHF Yagi antenna with excellent gain for both VHF and UHF operation. …Welcome to an exciting new chapter in amateur radio technology! I'm thrilled to introduce the 'Fara-J' - a cutting-edge 2m-70cm ham radio antenna crafted from Faraday cloth.I just finished a dual band yagi (2m/70cm) for about $10 this past weekend. I used KG0ZZ's "$4 Ham Radio Satellite Antenna" design, and it works great! There's an associated video on Dave Tadlock, KG0ZZ's YouTube channel. It provides detailed instructions and a demonstration of its use.Slim Jim Antenna Project – VU2RMU. 2 Meter Slim Jim Antenna using 300 Ohm Twinlead. Slim Jim 2M Antenna – SV5BYR. L.B. Cebik web site – requires registration (free) Commercial 2M 70cm Slim Jim – N9TAX. 2M Slim Jim antenna using Aluminum Tubing. Some Notes on the Slim Jim Antenna – M0UXB. Slim Jim Build. Handmade Slim Jim Antenna by .n9taxAmazon.com: Delta2 Coms - Portable 2-Meter 144-148MHz VHF High-Gain Ham Radio Yagi Antenna - Made in USA : Electronics ... Quad Band Mobile Radio Antenna 29/50/144/430MHz 10m/6m/2m/70cm for TYT TH-9800 Plus,TH-9800D Includes 16.4ft Coaxial Cable and Bracket Clip. ... Protect & Build Your Brand; Become an Affiliate; Become a Delivery Driver;24 Apr 2020 ... 2.6K members. Join. Antenna Building Novice & Expert. 29K members. Join. FT-991A. 3.1K members. Join. Ham Radio Swap - Online Hamfest. 16K ...In this exceptionally well-made video tutorial, Julien (OH8STN) takes us step-by-step through the design, construction, testing, and use of a one or three element quad antenna for UHF (70cm). The construction is straightforward and should not present any problems as you complete this useful antenna for your shack or portable use. For …The 2-m/70-cm combination presents a different challenge because the frequency ratio is about 3:1. Consider two dipoles, cut for 20 and 10 meters. We can easily use both dipoles with a common feedpoint. The reason is fairly simple: when one dipole shows a low impedance, the other shows a high impedance.Build your own 2m/70cm 3 Elements VHF by 5 Elements UHF Yagi antenna with excellent gain for both VHF and UHF operation. …So I built a simple flower pot antenna from PVC pipe and coax. 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. Obviously, the place to start was a dual band UHF / VHF antenna. Design. I picked the flower pot antenna based off the designs ...7 Nov 2019 ... First up is this dual-band (2m, 70cm) "Arrow" style "satellite" antenna. While it's meant for using for AmSat contacts, it can be modified fo...I created a video a few weeks ago showing how to create a 4:1 BALUN using coax. In this video I created a 4:1 BALUN for the Amateur Radio 2-meter band, cent...This is post 2367 in a continuing series of simple ham radio antennas. Thanks to "SurvicalComms" for this ultra-simple VHF (2 meter) J-Pole Antenna. All you need are a few basic tools, 5-feet (1.52 m) of 450 ohm ladder line, duct tape, soldering iron, and 10-feet (3.04 m) of RG-58 coaxial cable to begin the project.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. March 1, 2022 by …Build A 9dB, 70cm Collinear Antenna 70cm, Collinear Antenna From Coax. 440 Mhz J-Pole Antenna plans Here is a 70cm (440 Mhz) J-Pole antenna that is inexpensive, and easy to build. Author use 1/2 inch copper pipe, and the associated fittings necessary. The dimensions aren't typical however, this is what it took to get its SWR low.This portable 2m/70cm antenna is suitable for both portable and home operation. You should be able to find most of the materials at the nearest building supply …DIY 2m/70cm Antenna That is Better than What I Have? Right now I have a TWAYRDIO 20m/70cm Yagi that the manufacturer claims to be +9.5 dBi for VHF. I'm not sure how accurate that figure is, it seems a tad optimistic; but I'm happy with the antenna overall. I can hit all of the nearby repeaters near me, except one.It is estimated that the Slim Jim appears to have about 6dB gain over a 5/8 wave antenna due to the extreme low angle of radiation. (Most of the radiation is directed toward the horizion making the "gain" appear much greater than other vertical type antennas it has been compared to with A/B testing) Editor's note: There are many gain figures ...Get your antenna outside, especially if you are using 2 meters. The shorter 70cm waves have a much easier time getting through window openings than the longer 2 meter waves. There are many simple choices that don't involve trying to put a large antenna on a roof. A magnetic mount antenna for a car placed on a window air conditioner works well.Lessons learned building my first VHF/UHF tape measure antenna. As soon as I got my Technician's license and my first radio (a Yaesu FT-70DR ), I set out to build one of the VHF / UHF (2m / 70cm) tape measure Yagi antennas I had been reading about online. This video got me started with measurements for the tape, etc.a 2m 70cm dual band j pole antenna for 35 usd an excellent performing j pole type antenna constructed from readily available materials .The Satellite feature allows split channel and (2m&70cm), so I wanted a solution to use the 9700 at the QTH. I didnt want to spend a fortune on antennas, so I hunted out a reasoniibly priced 2m and 70cm antenna. For today will talk about the 70c antenna, the DUAL PA432-8-1.2RA. I got mine from Nevada Radio, other places sell them, but I've ...Antenna, 2m/1.25m/70cm Bands, 144/220/440MHz, Power Handling 85W for 2m, 50W for 220/440 MHz, 7.5 in. Height, NMO Mount, Each. Part Number: CAN-2M-220-440. 4.42 out of 5 stars. Estimated Ship Date: May 28, 2024 if ordered today. Free Shipping; Multiple Images; VideoSlim Jim Antenna Project – VU2RMU. 2 Meter Slim Jim Antenna using 300 Ohm Twinlead. Slim Jim 2M Antenna – SV5BYR. L.B. Cebik web site – requires registration (free) Commercial 2M 70cm Slim Jim – N9TAX. 2M Slim Jim antenna using Aluminum Tubing. Some Notes on the Slim Jim Antenna – M0UXB. Slim Jim Build. Handmade Slim Jim Antenna by .n9taxRegistered users are allowed to subscribe to specific review topics and receive eMail notifications when new reviews are posted. Review Summary For : Larsen glass-mount dual band antenna. Reviews: 31. MSRP: 80 approx. Description: Larsen's version of the thru-glass VHF-UHF mobile antenna. Product is in production.Figure 2 — Fabrication details of the mounting brackets needed for the 70 cm antenna. Two are required. Figure 3 — Elements mounted to boom of 2 meter antenna. The director with Celcon insulator and stud/rod detent washer are clearly visible, as is the driven element feed point with plastic plate. Figure 4 — Detail of a 70 cm directorThe Diamond Antenna X50A / X50NA is a dual band 2m/70cm high performance gain vertical base antenna for base/mobile two way radios. Diamond Antenna X50A and X50NA mobile antennas for dual band UHF/VHF transceivers; Bands: 2m (144-148MHz), 70cm (440-450MHz) Gain (dB): 4.5/7.2; Watts: 200W; Available with either UHF female (SO-239) or Type N ...=====More information on my website at http://www.fuzzthepiguy.tech=====Here are the measurem...It is a little different for the higher band, with the resistive component of the longer element being a bit higher and its reactance a bit lower, but still, most of the current will flow to the 70cm element. 1. Award. Hi there, I made a …Building for 70 cm Cutting elements for 432 MHz Yagis ... On a common build Yagi-Uda antenna all the parasitic elements are 'in line'. They are on same height. ... A method to cut all 8 elements needed for 4 bay of 2m xpol Yagis in one go! Method shown and introduced by Norbert, OE3NFC. Photos on courtesy of OE3NFC - tnx! ...Now its time to add the additional elements to the top and bottom of the collinear array. First add a ¼ wave element to the top of the antenna as shown in Figure 3. Use #16 solid wire or similar and solder it to the center conductor only. The length of the ¼ wave element is calculated as follows: 1/4 wavelength radiator = 300 / F / 4.Get your antenna outside, especially if you are using 2 meters. The shorter 70cm waves have a much easier time getting through window openings than the longer 2 meter waves. There are many simple choices that don't involve trying to put a large antenna on a roof. A magnetic mount antenna for a car placed on a window air conditioner works well.The Blade can also be used as a travel antenna, or even outdoors for short periods of time. Note: Low power is recommended indoors for health reasons. Tuned to 2 Meter Ham Band: Each antenna is tuned to the 2 Meter Ham Band centered at 146 MHz. Ready Made: There's no assembly necessary and 18 feet of coax (with BNC or UHF connector) is included.#baofeng #pmr #radioprepersWitam!W filmie prezentuję spontaniczne wykonanie super prostej anteny na pasma które. Możemy znaleźć w najbardziej popularnych rad...NOTE: Comparative testing of this antenna against one without the "choke" showed that the choke is NOT needed.Homemade vertical dipole for HAM 2 meter and 7...2M Quarter Wave Ground Plane Antenna - Ham Radio - TheSmokinApeIn this video we build a DIY 2 Meter Quarter Wave Ground Plane Antenna. Please leave any quest...The LFA would not have worked in this application as it is heavy and a fairly complex build. It's better for a permanent installation. Six Meter Omniangle 6-meter omniangle along with a 222 MHz omniangle and 432 MHz eggbeater. I have antennas! My first use of the Par Electronics Omniangles was on two meters and 70 cm. They worked great to get ...20 Jul 2022 ... I promised this for a long time, to some of the subscribers asking about my dual VHF - UHF vertical dipole antenna.3 Dec 2003 ... Also, for very little more money, if one doesn't like the possible directivity of this antenna, one could simply build two of them, one for 2m ...2 Meter Vertical Dipole Antenna. I was looking to build an easy to breakdown 2 meter antenna for an event I was helping with. I have issues with J-poles, and while easy to build, I think they interact with their feedlines way to much. 1/4 wave ground planes work well, but will have half the signal of a dipole.Here is a simple 2-element quad for 2m that is easy to build and does a good job. It works well for extending the range of an HT, transmitter hunting, SSB, or general use. When not in use it comes apart for storage. The SWR is less than 1.5 : 1 across the band from 144 to 148 MHz without any tuning. The boom can be rotated for either horizontal ...The antenna arrived at is shown below, and looks very similar to a standard 2m quarter wave ground plane except radial and radiator lengths and radial angle. However, the dimensions are sub optimal for min SWR for 145MHz but enable a 3/2 wavelength antenna on 70cm as we will see.May 27, 2020 · Dual band antenna 2m 70cm applications: The big wheel is a horizontal polarized omni directional antenna. Perfect gain and swr on both bands. 2m shows a 38.5in driven element but with the bent part the wire would be 57.75in long? It's a really great omni antenna for the 2m band. Source: img.17qq.com. Stacking of big wheel antennas to achieve a ...Now its time to add the additional elements to the top and bottom of the collinear array. First add a ¼ wave element to the top of the antenna as shown in Figure 3. Use #16 solid wire or similar and solder it to the center conductor only. The length of the ¼ wave element is calculated as follows: 1/4 wavelength radiator = 300 / F / 4.Nov 9, 2018 · =====More information on my website at http://www.fuzzthepiguy.tech=====Here are the measurem...Figure 1. There are several variations that are 300-ohm twin lead / Coax wire as well as Copper tubing and PCV tubing providing structure to the antenna shape. Dual Band 2m- …If you build the antenna as shown, the computer model predicts 11 dBi gain and a front-to-back ratio of 20 dB. ARRL Lab measurements confirmed the computer-predicted antenna pattern. You may wish to read further about tuning adjustments in The ARRL Handbook. It describes how to check the antenna with a field-strength meter, or by usingI used 1″ thin-wall PVC pipe, aluminum tape, and RG-8X coax. The goal here is to put up a cheap, easy, and quick 2-meter antenna that is simple and unobtrusive, but works quite well. If you have the materials handy, you can build and install this antenna in a couple hours. This dipole was constructed as follows: Cut 6 or 7 feet of 1″ thin ...How to build a 2 meter yagi antenna with a gamma match. Simple and easy to make using parts from an old TV antenna. You'll love this small high gain 4 element yagi beam antenna. ... 6m/2m/70cm Yagi Antenna Built from Old TV Antenna by KGØZZ This turned out to be a great little antenna. It works the 6 meter, 2 meter and 70 centimeter bands. …For VHF or UHF antennas, the solution is fairly simple. Since these antennas are short, they can be mounted at the back of the house where they cannot be seen from the street. A Comet GP-1 base antenna, at just over 4 feet high, can be easily placed on the back side of a roof and give you good 2m/70cm coverage.Team members at Solana-based decentralized exchange Raydium are proposing the creation of a bug bounty program worth 10 million RAY tokens (about ... Team members at Solana-based d...Feb 23, 2017 · NOTE: Comparative testing of this antenna against one without the "choke" showed that the choke is NOT needed.Homemade vertical dipole for HAM 2 meter and 7...This is a really easy, fun antenna to build. If you are new to Amateur Radio, or just want an easy to deploy 2 Meter antenna for out in the field, this is a...=====More information on my website at http://www.fuzzthepiguy.tech=====Here are the measurem... Weather fronts. °C 50 40 30 25 20 15 10 5 0 −5 −10 −15 −20 −30 −40. Live wind, rain,
Apr 1, 2024 · April 01, 2024. HAM RADIO: The Coat hanger Antenna 2m/70cm dipole. If you have some unused metal coat hangers in your closet, you can convert some of them into simple, efficient antennas for the 2m/70cm amateur radio bands. In this video, Tim (M0MSN) combines two metal coat hangers and a few spare parts from his ham shack to create a remarkably ...Hi there, G1ZMA kindly decided to build me another antenna for 2m and 70cm and here it is. Amazing what you can achieve with a metre and a bit of old RG58 an...My first dipole antenna with cost breakdown. It comes out to about $40 if you have to buy everything, $12 if you already have some electronic / hobby-type ma...This is the insides of a common dual band antenna 2m/70cm, made by diamond or nagoya. its generally labelled as: 1/2 wave radialless (144MHz), 2 x 5/8 wave radialless (430MHz) Its meant to be ground independant. Im trying to find the design name for the tuning/matching circuit at the bottom and how it works.It is a little different for the higher band, with the resistive component of the longer element being a bit higher and its reactance a bit lower, but still, most of the current will flow to the 70cm element. 1. Award. Hi there, I made a super-simple VHF dipole with this design: It works surprisingly well, at least for listening.Looking for a great, easy to build VHF antenna? Don't go buy one... build it. This episode of Ham Radio Basics shows you how to build a ladder line J Pole a...Welding rod might be better for a more permanent antenna. You need to solder the 19.25-in. driven element to the solder cup of the center conductor of the SO-239 connector. Attach the radials to the holes in the flange of the SO-239 connector with nuts and bolts. You can also use these nuts and bolts to mount the antenna to some kind of bracket.Built a Yagi 2m 70cm Tape Measure Antenna for amateur radio satellites but this video shows me having a QSO of a repeater about 20-30 miles away. Inspiration...In this video I explain how to make your own antenna for your handheld ham radio for almost no cost at all. This is my first video ever so some feedback woul...=====More information on my website at http://www.fuzzthepiguy.tech=====Here are the measurem...I'm confident you will find this portable "J" to far exceed any other antenna, in the same setup, to more than tripling your 2m & 70cm (440MHz) performance! Here is a step-by-step to make a portable (or base) 3/4 inch copper-pipe "J" that breaks down into four (~24" long) pieces for easy transporting. This design uses a Bungie-cord to keep all ...21 Aug 2018 ... So to put this antenna together, first measure out the elements using the formula. You'll need five. One for the radiator and four for the ...Excellent Antenna for 2M and 70cm. This antenna just works! The build quality is superb. Using my Kenwood TH-D72 HT I'm hitting 2m and 70cm repeaters 30 miles away with just 5 watts. I haven't done any Amateur Satellite QSOs yet, but the direct contacts I've made on 2m have been impressive. Full quiet and crystal-clear reception.18 Jun 2022 ... I've been wanting to make this video for a while. This little handheld 2m/70cm Yagi is an easy build, and it performs really well on both ...The new 2M/70cm has higher gain and is mounted 10 feet higher than the previous antenna. The 6M HO Loop is very narrow-band, but the SWR is nearly perfect at 50.3 MHz, so it will be great for digital and CW work. I did tune to 50.313 MHz and could hear and decode lots of FT8 from stations participating in the ARRL June VHF Contest.Is your Ham Radio HT rubber ducky letting you down? Do you want to transmit a stronger signal to the repeaters? If so, I'll show you how to build a two meter...This antenna is perfect for those hams living in the primary coverage area of the repeater for 2 meter use. This antenna is nothing more than the old standby "Droopy Groundplane" and can be used on any band where it's physical size does not pose a problem. Remember that the vertical radiator is 1/4 wavelength long at your operating frequency.Here is a simple 2-element quad for 2m that is easy to build and does a good job. It works well for extending the range of an HT, transmitter hunting, SSB, or general use. When not in use it comes apart for storage. The SWR is less than 1.5 : 1 across the band from 144 to 148 MHz without any tuning. The boom can be rotated for …This set me back about 50 euro cents per 2 meter (which means about 0.65 USD for 6.6 feet). I needed 50 cm of pipe in this antenna (2 times 25 cm). Next to this I used 70cm of speaker wire I had laying around and a few tie raps to strap it all together. I checked the SWR with the build in SWR meter of my FT-817. It was all 1:1.1 so perfect!ANTENNA NIGHT PLAYLIST https://www.youtube.com/playlist?list=PL01YuCls6edYQkHejzJNAxZqX9eRBeG8BI have been wanting a versatile antenna that I can take with m...Dualband Antenna's. 2×4 2m/70cm Compact Satt Comm Antenna; 2×3 2m/70cm Cross Yagi - compact build; Build 3 x 5 2m/70cm Cross Yagi 145-435Mhz; Build the 3 x 5 Elements 2m/70cm Yagi; VHF antenna's. 2 Elements Yagi 144Mhz; 7 Elements Yagi for 146Mhz band build; 2 Elements Yagi build for 107Mhz FM Band; Build the 5 Elements 2m VHF YagiSome simple portable antennas for 10 & 6 metres. Super simple 2m & 70cm antennas for FM, SSB & digital modes. Build a hanging dipole for 2 metres. 4 element portable yagi for 2 metres. Importance of inspecting and maintaining antennas used in the salty air (video) 3. Pedestrian mobile and ultra-small antennasAmazon.com: Diamond Antenna SRH770S Dual Band 2m 70cm Antenna with SMA-M Connector, 27.6" Long, 10W Max Power Handling : Electronics ... Build quality is very good. 73's. Read more. One person found this helpful. Helpful. Report. Ev. 5.0 out of 5 stars First one broken. Replaced and going great! Reviewed in the United States on May 10, 2020.Homebrew 70cm (430 MHz) antennas. 70cm is a good band for experimenting with antennas. Unless you need very high gain the antennas are small. This means that you can experiment without fear of …Inkl. Test! Hocheffektive flower pot Duobandantenne fürs 2m und 70cm Amateurfunkband, auch für FREENETFUNK UND PMR nutzbar. Einfach zu bauen und wetterfest. ...The Diamond 2m 70cm vertical antennas are a type of antenna designed for use in the 2 meter and 70 centimeter frequency bands. These antennas are vertically polarized and are commonly used by amateur radio operators for communication on VHF and UHF frequencies. They are known for their compact size and ease of installation, making them a popular choice among radio enthusiasts. The Diamond 2m ...Step 2: Design. A: 275.7mm. B: 746.2mm. C: 103.7mm. D: 29.8mm. E: 142.2mm. The construction itself is very simple; measure and cut all pieces to length, sand down the ends lighty to remove any burr, apply solvent and pressure fit. It is worth doing a dry run to make sure all measurements meet above figures before gluing and you may find the ...Aug 13, 2021 · 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...The Satellite feature allows split channel and (2m&70cm), so I wanted a solution to use the 9700 at the QTH. I didnt want to spend a fortune on antennas, so I hunted out a reasoniibly priced 2m and 70cm antenna. For today will talk about the 70c antenna, the DUAL PA432-8-1.2RA. I got mine from Nevada Radio, other places sell …Dual Band 2m-70cm J-Pole Antenna DIY project that can be "Rolled Up" and conveniently transported in you Go Kit and un-rolled when on site. At you station at...2m-70cm_vertical_lengths. Design I used for my dual band dipole for 2m/70cm - http://www.amateurradio.bz/2m-70cm_vertical_dipole_antenna.html ...A DIY lightweight 2m Moxon antenna. Here is a rough guide to my home brew 2m Moxon (According to some old kitchen scales it weighed in at around 160g, my luggage 'scales' said .2kg, but it only shows up .1kg units ) I built it to take to ZL and VK, so the dimensions were for frequencies a little higher than the UK, although it seems to work ...13. Step 2A -Cut the Threaded Rod (Fine Thread) Cut the threaded rod into the lengths necessary: 18.5" for 2m 6 ¾" for 70cm Be sure to measure and cut from the machined ends so there is no clean-up work on the threads. Make sure to err on cutting long! Measure in from end 18.5" and cut Measure in from end 6-3/4" and cut Scrap the ...The 2-m/70-cm combination presents a different challenge because the frequency ratio is about 3:1. Consider two dipoles, cut for 20 and 10 meters. We can easily use both dipoles with a common feedpoint. The reason is fairly simple: when one dipole shows a low impedance, the other shows a high impedance.Inkl. Test! Hocheffektive flower pot Duobandantenne fürs 2m und 70cm Amateurfunkband, auch für FREENETFUNK UND PMR nutzbar. Einfach zu bauen und wetterfest. ...How to build a ham radio tri-band 6 meter, 2 meter & 70 cm yagi beam antenna using an old TV antenna for parts. A simple design using dipole driven elements....The 2-m/70-cm combination presents a different challenge because the frequency ratio is about 3:1. Consider two dipoles, cut for 20 and 10 meters. We can easily use both dipoles with a common feedpoint. The reason is fairly simple: when one dipole shows a low impedance, the other shows a high impedance.Chapter 18. Fig 25—Simple ground-plane antenna for the 144, 222 and 440-MHz bands. The vertical element and radials are 3/32 or 1/16-inch brass welding rod. Although 3/32-inch rod is preferred for the 144-MHz antenna, #10 or #12 copper wire can also be used. Fig 26—A 440-MHz ground-plane constructed using only an SO-239 connector, #4-40 ...Oct 23, 2020 · This is post 2397 in a continuing series of simple ham radio antennas. Thanks to Dave Tadlock (KG0ZZ) for this simple 2m/70cm vertical dipole antenna project. This antenna is perfect for deed - restricted housing and field operations. Also, Dave provides a link for more details on the antenna:the 2-meter band. Shortening the stub to move the maximum VSWR point higher in frequency is easy. Should you over- shoot, it is simple to start over again with a new piece of wire. Once you are satisfied with the results, the P L-259 can be cemented to the insulator. That's all there is to it. See you on 2 fm! Notes "5/8-Wavelength Vertical ...An Improved Version. (See older version here) 3 element = 7 dBd Gain. 5 element = 9.4 dBd Gain. 10 element = 13 dBd gain. These Collinear antennas are " 4 " Megs wide and "must be supported" at the top by a yard arm or tree limb. Building instructions for the NEW WB3AYW Collinear Antenna. This is for Two Meters only 02/11/2014.In this video, Dave shows us a simple step-by-step procedure to make a dual-band 2 meter and 70 centimeter ground plane antenna. This antenna will let you connect with both 2 meter and 70 cm repeaters in your area. The antenna is fairly easy to make with locally available materials. This homebrew dual-band antenna is suitable for both home and ...Chapter 18. Fig 25—Simple ground-plane antenna for the 144, 222 and 440-MHz bands. The vertical element and radials are 3/32 or 1/16-inch brass welding rod. Although 3/32-inch rod is preferred for the 144-MHz antenna, #10 or #12 copper wire can also be used. Fig 26—A 440-MHz ground-plane constructed using only an SO-239 connector, #4-40 ...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)The large square with 28 cm edge length covers the 2m band in the frequency range of 140 - 150 MHz, the smaller one allows operation on 70cm from 400 - 470 MHz. The signal direction corresponds to the open side of the loop element. The 50 ohm supply with up to 800 watts is provided by a PL/SO239 connector.This time I found an old fence wire, a piece of wood, and decided to make a yagi antenna. I already made an antenna like this a few years ago. Very simple. T...7 May 2024 ... Comments42 ; Tape Measure Yagi-Uda Antenna 2m/70cm DIY: A inexpensive easy alternative to the usual build. Ham Radio Rookie · 12K views ; Raddy ...30 Aug 2016 ... The antennas that Kevin AG6YO describes are single-band antennas. If there aren't many 70cm repeaters in your area, then a single-band 2m ...This 2 Meter 300 Ohm Slim Jim antenna is constructed from regular 300 ohm twinlead. (The same type used for TV antenna installations.) It is very easy to build and does not take days to construct. The measurements above are not extremly critical but may have to be lengthened or shortened for your particular operating frequency.Oct 31, 2015. #2. 2 meter antenna. If you want a 2 meter buy or make one. Cut five 19 inch coat hangers, get a male pl 259 and make a ground plane.. One in the top and 4 radials in the other holes at 45 degrees.Here are the plans to build a 2 meter J-pole antenna: The above dimensions for the J-pole are in inches. Measurements on overall length, and stub length are from the centerline of the separation pipe (horizontal) to the top of the antenna. The Connect at measurement is 2 1/4 inches from the top of the horizontal member to the point of connection.The 2-m/70-cm combination presents a different challenge because the frequency ratio is about 3:1. Consider two dipoles, cut for 20 and 10 meters. We can easily use both dipoles with a common feedpoint. The reason is fairly simple: when one dipole shows a low impedance, the other shows a high impedance.Dual Band 2m/70 cm Vertical Ground Plane Antenna. 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. Because of the dual band capability, this antenna could become your primary ...Depending on the 2 meter and 70cm frequencies you choose for tuning your antenna, you might have to compromise a little. I got lucky, because I was using 147.060 MHz and 442.100 MHz, which just happened to both yield a length of 19.08 inches for the longer of the two 3/8″ rod elements.Homebrew a j-pole 2mt and 70 cm antenna project. Make it cheap. This article includes homebrewing instructions, parts lists, tools needed and printable documentation. ... Homemade 2M/440 J-Pole Antenna; A 2m 70cm Dual Band J-Pole antenna for 35 USD. An excellent performing J-Pole type antenna, constructed from readily available materials. The Connect at measurement is 1 1/2 inches from the top of the horizontal member to the point of connection. Th