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:This is post 2516 in a continuing series of simple ham radio antennas. Here are some general comments from Robert: In this video I give an overview of the design and use cases for 2 distinct eggbeater antennas, a DIY eggbeater V2 antenna and a commercially produced eggbeater antenna from M2 Antennas, both designed for 435 MHz and have right ...Here a link to another video of the antenna that shows the measurements. https://youtu.be/MYWTxbUW3RsHomemade full wave antennas for ham radio on 2 meter and...Rated 5.00 out of 5 based on 13 customer ratings. ( 13 customer reviews) $ 65.00. The Signal Staff is a dual band 2 meter / 70 cm Open-Stub J-pole from S&K Antenna Systems! This is a new antenna for us here at Signal Stuff made by S&K Antenna Systems who are friends of ours and have assisted in many aspects of Signal Stick manufacturing!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 ...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...Amazon.com: 2 meter yagi antenna. ... HYS Dual-Band 9.5/11.5dBi 100W Yagi Antenna 8 Element Beam 2 Meter/70 cm VHF/UHF Outdoor Yagi Antenna with U-Bolt for 144/430Mhz Ham Mobile Digital Radio/Repeater (TC-YG08UV) ... Protect & Build Your Brand; Become an Affiliate; Become a Delivery Driver;Consider a 144MHz (2m) signal coming in on the antenna socket SK2. The tuned circuit L2/C2 is resonant at 144MHz and. having a low impedance, passes the signal to the 2m output SK1. The tuned circuit L3/C3. being resonant at 433MHz, exhibits a high impedance at 2m and so stops the 144MHz signal from reaching the 70cm output socket SK3.Build your own 2m/70cm 3 Elements VHF by 5 Elements UHF Yagi antenna with excellent gain for both VHF and UHF operation. This antenna is designed for amateur band frequency for both VHF (2m) and UHF (70cm). The antenna has good reflection coefficient and VSWR ratio @ 1.2:1 at center frequency and 1.7:1 at band edge.If we look at the antenna as a 70cm antenna (435MHz), it will be completely different. Here, the piece with an unremovared plastic cover does resonate at about 435MHz. The 2m half wave element is then divided into 3, and the upper and lower part will also resonate at 70cm. These are then each half a wave at 70cm. In this way we get in principle ...7. rjm27trekkie. • 4 yr. ago. You may notice that you have a 78:1 ratio for wavelength to tape thickness on 2M and only a 28:1 ratio for 70 cm using these inch thick tape measures. I have had much better results (without having to make corrections) using a 1/2 inch tape measure for the 440 side.16 Nov 2021 ... How COOL is this?!? A DIY do-it-yourself FOLDABLE 2m/70cm dual-band Moxon Yagi hybrid antenna! Similar gain on both bands as my Elk & the ...Easy to build antenna for 2 meters. Follow along as i show you how to build a Quarter wave ground plane for 2 meters. From start to finish i walk you thrual...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...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 ...15 Jul 2020 ... 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 ...Industrial robots are expensive. But, then, so are construction mistakes. Being off by an inch here or there adds up quickly, and too often crews need to correct costly errors. The...Baofeng Antenna options! Post 2069. 2m/70cm Ground Plane Antenna. Post 2068. DIY Dual Band VHF UHF antenna from surplus. Post ... The 'L' Dipole Antenna for Ham Radio. Post 2066. ARRL opposes cuts in 3.3-3.5 GHz Amateur Radio All... 7 and 28 MHz HF pedestrian mobile with 6m wire. P... How to build a dipole antenna for Ham Radio. Post...The basic "J" is reported to have >3dB of gain over a ¼ λ ground plane antenna and 6dB over an isotropic (theoretical) antenna. The "J" can be made from almost any material: copper pipe, steel whips, TV twin-lead, ladder-line or metal rods. Technically, the "J" antenna is an end-fed ½ λ antenna that uses a ¼ λ matching stub. Old-timersCreated by on 2003-12-03. The NA4IT "CHEAP" Dual Band Ground Plane Antenna. Here is a neat little antenna that is very easy and cheap to build. 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!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...6 Nov 2020 ... Comments9 · How to Build and Tune a Tri-Band Ground Plane Antenna · Building a ground plane antenna · HAM RADIO: 2M/70cm Skylab Build. · ...Getting radio frequency can be tricky if you live far from a radio tower. If you're having trouble hearing your favorite stations, consider getting an FM antenna so you can get tho...My SWR reading was 1.2 on ch 1,1.1 on ch 20, and 1.2 on ch 40. But when I raised it up to full height the readings went up to 1.4 on ch 1, 1.3 on ch 20 and 1.4 on ch 40. I believe that its because is mounted too close close to my open stub J-pole antenna for 2m/70cm. But they are readings I can live with.I 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 ...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...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 …Inkl. Test! Hocheffektive flower pot Duobandantenne fürs 2m und 70cm Amateurfunkband, auch für FREENETFUNK UND PMR nutzbar. Einfach zu bauen und wetterfest. ...Thanks to Clint of "Oxford Shortwave Log" for this coaxial collinear antenna system for 2m and 70cm. Depending on the materials in your "junk box", you could build this VHF/UHF antenna for almost no cost. Here are some comments from Clint: Hi there, G1ZMA kindly decided to build me another antenna for 2m and 70cm and here it is.Slot Antenna with parabolic dish for 2m and 70cm; Spy Radio Indoor Antennas; Installing a new vertical ham radio antenna; Multiband Inverted Delta Loop Antenna; Off Center Fed Dipole (OCF) Antenna-Ham Radio Q & A; 80 Meter Full Wave Loop Ham Radio Antenna; Building a copper-tape VHF window antenna; Tuning the 40/80 meter coil loaded inverted v ...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....The antenna is constructed from M4 stainless steel threaded rods, as they are relatively inexpensive and common place at most DIY stores. Additionally, it is an easy material to work with and does not require any special tooling. The boom is constructed it from 10mm2 aluminium box section, again it's cheap and stocked in most DIY stores.MFJ Pulsar VHF/UHF Base Vertical Antennas MFJ-1538. Antenna, Vertical, VHF/UHF Base, 70 cm, 1.25 m, 2 m, 6 m, 200 W, Fiberglass/Aluminum, 8.2 ft. Height, Each. Find VHF/UHF Base Vertical Antennas 2 meters Band Coverage and get Free Shipping on Most Orders Over $99 at DX Engineering!The N5WVX 2 Meter 7 Element Yagi with a "Twist". The N5WVX 2 Meter 7 Element Yagi with a "Twist". ( Cool Elements) Based on the 2 Meter Beam Project by. Larry Morgan, AG5Z. It's hot weather in Texas in July and Larry Parker, N5WVX, shows us a novel way to make these "cool" elements for a 2 meter Yagi and also his method of building a gamma match.Jeśli uważasz, że warto mnie wesprzeć - możesz postawić mi wirtualna kawę 😀 - https://buycoffee.to/sierraecho lub zostać moim patronem - https://patronite.p...MFJ Pulsar VHF/UHF Base Vertical Antennas MFJ-1538. Antenna, Vertical, VHF/UHF Base, 70 cm, 1.25 m, 2 m, 6 m, 200 W, Fiberglass/Aluminum, 8.2 ft. Height, Each. Find VHF/UHF Base Vertical Antennas 2 meters Band Coverage and get Free Shipping on Most Orders Over $99 at DX Engineering!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 ...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. Category : Antennas/J-Pole.In this video I've kept the time down to under 5 mins and easy to follow along. In the video I show you my way of building a very inexpensive and easy to bui...While it may appear these antennas won't work, build one and try it; my first antenna (also my first homebrew project) was for 70cm, the first station I heard was a repeater 50-60 miles away.--Joshua Davis, KD5LSX. You will need (dependent on the band you wish to build your antenna for):2m/70cm Dual Band J-Pole by KK4ICE . If you have any questions about this project, contact [email protected]. (Step-by-step instructions with photos can be seen below, following the project description and safety disclaimer.) This is an excellent performing J-Pole type antenna, constructed from readily available materials.Dual-band 2M/70cm HT Antenna Super flexible and lightweight- Made from the same material as unbreakable eyeglass frames Gain & Wave length: 2M 2.15dBi 1⁄4 wave 70cm 3.5dBi 5⁄8 wave Max Power: 20 watts Length: 15.75" Connector: SMA SMA-24 pic. EDIT: some other stuff I thought of while I was getting ready for bed.Simple Wideband Yagi's for 2m and 70cm - Errata and extra pictures. ... I actually simply used a standard TV antenna U bolt with a couple of holes drilled through the boom at a convenient spot. In particular I found which two elements the balance point was between and then put the clamp in the middle between those two elements. ...Most people make these for 2m use, but you can make them for 70cm use if required.If you decide to make a 2m antenna, you’ll end up with 1.5 metres of ladder line as the main …This document contains the detailed instructions to build a homemade lindenblad antenna using a twin-lead as dipole elements. This document contains 9 pages and includes a detailed construction sequence and some drawings to build this antenna for UHF and VHF ham radio bands. Category : Antennas/Lindenblad.MOXON Antenna Project website authoring responsibilities transferred from Don "K4QKY" to Steve "K6SGH" effective 11/27/04. visitor. over 4.8 million site hits over the last 12 months!!! This site is dedicated to the memory of KD6WD, John Labutski, SK, our Moxon Elmer who founded the MoxonAntennaProject in 2003. John with his best friend Buffy.Jun 24, 2020 · Created by Mike Sanchez on 2020-06-24. A Covid-19 Dual Band 2m/70cm Antenna for $9. 5.37 dBi (2m) and 7.39 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.The articles present designs and construction techniques for inexpensive and easy to build antennas that will make perfect first projects. All articles are in Adobe PDF format. CheapYagi for 70cm - This article is intended to enable non-satellite hams to painlessly acquire the 440 MHz downlink antenna needed to actually hear and work a satellite.I don't believe an antenna tuned for 2m will load up very well on 70cm. It's possible to build a dual-band antenna...you just start with a 2- ...26 Feb 2022 ... Here are the dimensions for the VHF/UHF ... The only downside to building your own antenna is that you ... This is slightly below the 70cm amateur ...Four Element Yagi Antenna for Ham Radio 70cm Band; MFE-1 End Fed Antenna Tuner; HF Indoor Loop Antenna DIY-Simple & Easy to Build; 6-element Quagi Antenna. Tape measure Yagi Beam Antenna; Ham Radio-A 40 meter folded dipole antenna using w... Building an Air Choke or "Ugly Balun" Portable PVC Conduit Antenna Mast; 2 meter VHF Halo Antenna ...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.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.Six Meter Folded Dipole Antenna; 2 meter/70 cm telescopic dipole, homebrewed; Simple to make 2m/70cm antenna project for portabl... Homemade Full Wave Dual Band Antenna for 2 meter a... MFJ Duplexer-two radios one antenna or vice versa; Idiot's Guide to Wire Antennas; My low cost 10 meter DIY; Ground Radials for Vertical AntennasAn Easy Dual-Band VHF/UHF Antenna. February 1995 QST Volume 79, Number 2. way is to obtain the angle of declination from a topographic map. Often referred to as the variation angle in air and sea navigation, this angle is simply the difference between true and magnetic North at a specified location. By knowing this.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. Either way let your creativity work for you. 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.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. It is easy to build for other bands as well. ... Using junction blocks to build the hub of a VHF ground plane antenna. The individual metal pieces are removed from the nylon housing and ...This antenna is for the 2-meter Amateur radio bands and will easily handle 5 watts of the average handy talkie. Materials you will need: 1 Aluminum or Carbon Fiber Arrow shaft. 1 SMA connector. 3 feet of RG174U coaxial cable. 1 "tube" of .025 music wire (tube usually has 5, 3ft rods. You'll need 4 rods)if government pays its current commitments, a married millennial couple stand to receive roughly twice as much as their parents got. By clicking "TRY IT", I agree to receive newsle...Build a Simple VHF Dipole Antenna for 2m. If you've ended up here, you're either a novice - or clicked through out of curiosity. We were all novices once, and my aim here on this page is to give the novice and beginner an introduction into building a working antenna. It's not about the 'Ins' and 'Outs' of it all.MFJ Pulsar VHF/UHF Base Vertical Antennas MFJ-1538. Antenna, Vertical, VHF/UHF Base, 70 cm, 1.25 m, 2 m, 6 m, 200 W, Fiberglass/Aluminum, 8.2 ft. Height, Each. Find VHF/UHF Base Vertical Antennas 2 meters Band Coverage and get Free Shipping on Most Orders Over $99 at DX Engineering!24 Oct 2019 ... Slim Jim and J pole both DIY builds and give quite different results. X30, X50 are very generic and forgiving, X200 X300 etc are longer and have ...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 .... =====More information on my website at http://www.fuzzthepiguy.Those work ok on 2 m but on 70 cm the radiatio "5/8-Wavelength Vertical Antenna for Pentecost, Mobile Work," Ham Radio, May 1976. Radio sales, P. O. Box 1105, 1016 E. Eureka St.. Lima OH 45802, GOI-51048 telescoping whip antenna. Band The Shooter — A 3- Portable Antenna in a jiffy? Try Want a vertical you can put up or take down this penny-pincher's Field Day special! Mar 18, 2013 · 2m Eggbeater II The 2 meter loops are 51 cm wide by 6 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. A Simple 2m/70cm Vertical Dipole Antenna I have to seal th...
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