2m 70cm antenna diy

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 .n9tax

This "J" design can be used as adual-band'er - 2m/440. Technical: Thebasic "J" is reported to have >3dB of gain over a l ground plane antenna and 6dB over an isotropic (theoretical)antenna.The "J" can be made from almost any material: copper pipe, steelwhips, and even 300 ohm TV twin-lead.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 ...BALUN AND ANTENNA CENTER INSULATOR. 2 IN 1 PORTABLE ANTENNA. LONG WIRE AND FULL DIPOLE 10 TO 80 METERS. FLEXIGLASS DIPOLE INSULATOR. 2M - 70CM DUAL BAND J-POLE. MAKE YOUR BALUN AND ANTENNA. CENTER INSULATOR LOOK PROFESSIONAL. MULTI BAND DIPOLE 10 TO 80 METERS. SOUNDCARD INTERFACE.In order to connect a 2m/70cm radio and a 1.25m radio to a triband. antenna (2m/1.25m/70cm), one requires a triplexer and diplexer. I'd. like to cut down on the number and size of equipment to do this. I asked Comet about making a single compact unit that takes 2m/70cm on. one port and 1.25m on the other.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 ...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 half wave 2M version of the Flower Pot antenna is easily modified to a dual band antenna for operation on a band that is the [approximate] third harmonic of the fundamental resonance. [e.g. 145MHz x 3 = 435MHz - that's 2M to 70cm or VHF to UHF] The modification involves placing a coax phasing sleeve of aluminium foil around the outside ...The resource is currently on dxzone.com in just one category. Main category is 2M that is about Antenna projects for 144 MHz. This link has been on our site since Saturday Feb 22 2020, and it has been clicked on 387 times. So far it received 1 votes for a total score of 5.00/10. The scale is 1 - 10, with 1 being poor and 10 being excellent.

4. Use paste flux on all joints when fitting the pieces together. Use enough flux, since you will be cleaning the entire antenna with solvent after assembly. 5. Use a weight to hold the 19″, 57-1/2″, and 2″ pieces, and the Tee and the elbow, flat when they are sweat soldered together. 6.What you’ll need to make a Slim Jim: Some balanced ladder line feeder – either 300 or 450 ohm will do – If making an antenna for 145MHz, then you’ll need a length of 1.5 metres. For other frequencies, use the calculator later in this article. Some co-ax long enough to reach from the base of the slim jim to your radio.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 resonant frequency can easily be tuned by cutting the monopole, while the impedance can be tuned by folding the radials. * Monopole antennas need a ground plane, so you shouldn't use them with a u.fl to SMA cable assembly. Dipole antennas can be used with u.fl-SMA cables. * Monopole antennas can be used with edge soldered SMA-connectors.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.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 …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; Video

Cushcraft 2M/70cm Wideband Yagi Beam Antennas. Antenna, Yagi Beam, 2 Meter/70 cm Wideband, 10 Element, 6.10 ft. Boom Length, 350 W Power Rating, Each See More Specifications. Cushcraft 2M/70cm Wideband Yagi Beam Antennas A27010S CSH-A27010S. 3.75 out of 5 stars. Part Number: CSH-A27010S. Estimated Ship Date: Today.Dual band Yagi for 2m and 70cm with 4 elements on 2m and 5 elements on 70cm and one feed point, designed by DK7ZB. A great antenna for amateur radio satellit...Jul 19, 2014. #8. The best antenna is the one you just made a contact with. Seriously, if you are not on a budget, Diamond and Comet make excellent 2m/440 antennas in several gain configurations. You could build your own. Arrow antenna makes a 2m/440 j-pole, which at $49.95 is a bargain and an excellent antenna.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 usingDualband 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 Yagi

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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....Jun 29, 2018 · Dave shows how an old coffee can can be repurposed as a home made 2 meter/70 cm antenna. All you need is a vertical element cut to the correct length and some kind of metal ground plane or counterpoise to complete the antenna. The shield of your coaxial feed line might serve this purpose. A clearly explained, step-by-step procedure that will ...Ham Radio 2m/70cm Vertical Dipole Antenna; 15 Metres Simple DX Antenna; Windom Antenna; Is the J-Pole the ultimate 10 meter band vertical ... The Amazing Delta Loop Antenna. DX-Mass Tree Light Dipole; Top 10 easy to build HF wire antennas; How to design and build a 70cm DIY loop antenna; Loop on the ground antenna, is it any good?Attic antenna for 70cm/2m. ANTENNA. I am planning on adding a simple J pole antenna (something like I found here) into my attic. Do I just mount it as high as I can into the peak, and run coax to where I'll attach it to my HT (antenna --> coax --> wall plate --> coax --> HT)? Am I missing anything, or any suggestions?One could always build a multi-band antenna with LC "band traps" which is commonly used in the 80-10 meter bands. Even at HF, experience builders of LC traps ... (2 meter, 220 MHz and 70cm meter) antenna by J.L. Harris [3]. It was a stacked Tri-band J-pole antenna as shown in Figure 4. It is basically 3 parallel J-poles where the coax for16 Dec 2023 ... DIY Dual Band Aerial. 70cm & 2m Ham Radio. Part 4. Final Test Results. · Comments.

Step 4: Measurements. The developed antenna has been measured with a VNA in terms of SWR and S11 parameters. The result shows that antenna has a bandwidth between 419.5 and 451.2 MHz with the respect of SWR of 2:1, which is more than enough for the 70 cm band (430-440 MHz). F4HWK.Mike calls this antenna the "perfect stealth antenna" for 2m/70cm. Mike does an excellent job of taking us through the design, construction, and testing process for this remarkably simple antenna. ... In this video, members of the Stamford Amateur Radio Association W1EE, show us how to build a ZS6BKW antenna capable of covering the 80 to 6 ...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...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 directorFigure 3: 2m dipole or J-pole (free-space) vertical radiation . pattern (black) and the same antenna on 70cm (red). Fortunately, there is an easy solution. Install 70cm stubs on the 2m antenna to create a good UHF radiation pattern. Many commercial HF antennas use this technique to achieve good patterns on their multi-band antennas.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 ...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!Mar 27, 2016 · N6TWW. 2 Meter Halo Antenna project by Mike Fedler with many detailed pictues and detailes homebrewing instructions so you can build your own. This is a series of videos showing how to build an Omni directional horizontally polarized antenna for 2 meter single side band operation. This antenna is called a 'Halo Antenna' due to its circular shape.The Connect at measurement is 1 1/2 inches from the top of the horizontal member to the point of connection. The distance between the main element of the j-pole centerline and the tuning stub centerline is 0.75″. Pages: 1 2. Filed Under: antenna, Ham Radio, WB8ERJ Tagged With: 70cm, Antenna, DIY, Ham Radio, J-pole, jpole, wb8erj.Build a 2m VHF Sleeve Dipole; Original patent design for Folded Dipole antenna; Edison Fong (DBJ-1) J Pole; Edison Fong (DBJ-2) J Pole Roll Up; Edison Fong – Tri-Band Antenna for 2m, 1.25m and 70cm; Build a 2-Meter Vertical Dipole Array; Service Manuals. Alinco DJ180 Service Manual; Icom IC-2GA/GAT/GE; Icom 02A, 02AT, 02E Service …

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...

SWR across the 2 meter band is 1.1 to 1.4 with most of the band covered at 1.2 or below and 1.1 or less from 146.0 up. SWR on 70 cm (420-450 mhz) is 1.7 or less through 433.5, 435.5 through 441.5, and 445 through the top of the band. 435 to 435 tops at 1.9 and 442 to 445.5 tops at 2.2. This is with ZERO tuning done, just tested as built and ...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...What you’ll need to make a Slim Jim: Some balanced ladder line feeder – either 300 or 450 ohm will do – If making an antenna for 145MHz, then you’ll need a length of 1.5 metres. For other frequencies, use the calculator later in this article. Some co-ax long enough to reach from the base of the slim jim to your radio.Mag mounts are a quick and easy way to get ham radio working in your car. Let's get after this install!🛒 RAM Seat Bolt Mount: https://geni.us/HHnqzA 🛒 RAM...If you haven't noticed already, I LOVE to build antennas. After building the log periodic, I thought I would try my hand at building a Yagi. I decided to make a 70cm Yagi since it requires less materials, so the cost would be less that a 2m Yagi, which is the ultimate goal. A couple obstacles I had to overcome in keeping the cost down was: what ...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 ...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.I've always wanted to have a go at working the satellites but never wanted to pay out on a dual band antenna. I already have a cheap uv5r radio that's I've s...

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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, …Email list: http://eepurl.com/iGP0CkPlans including the STL files: https://www.patreon.com/HamRadioRookie/shop/fara-j-2m-70cm-antenna-88511Patreon Membership...Hiking with an Arrow-size yagi, even the split beam is cumbersome. But it is quite effective for hill-topping purposes. Your market would be anyone who hikes up hills with a VHF antenna (so mostly the SOTA crowd). In New England, this is less than 200 people. 2M is ideal, though having the option of 70cm would attract the satellite types.An antenna for frequency F will also be resonant near F*3, so you may not even need 70cm elements. 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. The lowest impedance is offered by 1/4 wavNov 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. 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.Antenna DIY Builders, Welcome to the third antenna build of this DIY Antenna project. The selected antenna is a Dual Band 2m- 70cm J-Pole “Roll-up” Antenna. This is Dual Band 2m-70cm J-Pole Antenna that can be “Rolled Up” and conveniently transported in you Go Kit and un-rolled when on site. At you station atThis 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.Don't worry about it. In a general purpose FM antenna, little bit of feedline radiation can be even useful, makes it work better against horizontal antennas. A sleeve balun could be an option. Thick tube (1inch or more) over the coax, open at feedpoint, shorted to coax shield at far end, 1/4 wavelengths long at 2m, 3/4 waves at 70cm.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...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.The more common coax collinear requires a PVC radome to give it rigidity and weather proofing, and assembly can be difficult. The 2 - 440 Collinear vertical in this project is simple to build and expand, semi rigid, self supporting, water tight, electrically sound, and a professional appearance when completed.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. ….

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...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 ...If you don't mind shifting your DIY attention to a home-brew 6m/10m vertical (perhaps a trap implementation), you might look at a triplexer like this that gives: low pass at <90 MHz for 10/6m; mid pass at 130-200 MHz for 2m; hi pass at 380-500 MHz for 70cmMounted to the horizontal cross piece with 2 U clamps, long legged muffler type clamps. Top of antenna is about one inch below the ridge beam. Bottom of antenna is approx 25 feet above ground level. Using 400 flex type cable (ABR brand from HRO). Just try to keep it away from any metal, vents wiring etc.I had the opportunity to find some old Camping stools from SAVERS, a local thrift store, so I destroyed them and made a Moxon antenna!I have heard the storie...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....5 Element 2M / 70cm Yagi. On this page is the design for Dual Band 2M / 70cm antenna with 3.2mm elements. The antenna has a 50 ohm designed driver. This Yagi has a unique element called a Open Sleeve.Re: Homebrew 2m, 70cm mobile antenna. by knight » 11 Feb 2010, 17:17. First the photo is a heldhold mobile radio and the antenna is for a mobile radio. I am trying to build a antenna for the roof of a car which I did say a mobile car antenna for the roof of a car not heldhold. knight.This photo shows the parts of the antenna before assembly. All the soldering is done. Simple Ground Plane Antennas for. 2 Meters, 1.25 Meters and 70 centimeters. Radiator. The completed antenna. This model happens to be the 70 centimeter unit but the only difference between this one and the units for other bands is the length of the radiating ...HYS 771Q 2m/70cm SMA-M Tactical Antenna Dual Band Foldable Portable Aerial Compatible with BF-UV3R YAESU VX-1R VX-2R VX-3R TYT 2 Way Radio (Camouflage) 1. £899. FREE delivery Mon, 29 Apr on your first eligible order to UK or Ireland. Or fastest delivery Tomorrow, 27 Apr. 2m 70cm antenna diy, Make one for your "go-kit" or even for the next ARRL Field Day. KB3TQO does a good job of designing and making this simple, effective antenna for the 2 meter and 70 centimeter bands. "Homebrewed an adjustable dipole for use on the 2 meter and 70 cm bands that can easily break down to stow in any small pocket. Cheap and easy.", 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..., 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 …, Thanks to radio amateur Dave Tadlock (KG0ZZ) for this simple, effective VHF/UHF (2m/70cm) ground plane antenna. Most of the materials can be found at the nearest hardware store or building supply outlet. The antenna is perfect for local traffic and ragchew nets, as well as portable and emergency use., This "J" design can be used as adual-band'er - 2m/440. Technical: Thebasic "J" is reported to have >3dB of gain over a l ground plane antenna and 6dB over an isotropic (theoretical)antenna.The "J" can be made from almost any material: copper pipe, steelwhips, and even 300 ohm TV twin-lead., 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; Video, This is a quick video of a simple J Pole antenna build for 2 meters. The plans are readily available online from a number of sources. The plans for this one came from ..., Challenged myself to build a usable Yagi style antenna for the 2 Meter (2M - 144MHz) amateur radio band. The challenge part is that I wanted to use stuff I ..., Mike calls this antenna the "perfect stealth antenna" for 2m/70cm. Mike does an excellent job of taking us through the design, construction, and testing process for this remarkably simple antenna. ... In this video, members of the Stamford Amateur Radio Association W1EE, show us how to build a ZS6BKW antenna capable of covering the 80 to 6 ..., This photo shows the parts of the antenna before assembly. All the soldering is done. Simple Ground Plane Antennas for. 2 Meters, 1.25 Meters and 70 centimeters. Radiator. The completed antenna. This model happens to be the 70 centimeter unit but the only difference between this one and the units for other bands is the length of the radiating ..., Here are some of Mike's comments: "The construction of a shop purchased, ZL Special 7 element Yagi antenna for the HAM Radio 2M band. This no frills antenna boasts a 11.5 DBd Gain, is simple to build and works straight out of the box (once put together). Great bit of kit at a good price. Brilliant :) Please subscribe.., 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...., 2 meter antenna tuner project. October 05, 2022. 2 METER ANTENNA TUNER , ONE EVENING 2 METER TUNER PROJECT, Most active radio amateurs have an antenna transmatch (i.e. "tuner") to reduce swr and provide an impedance match to their transceivers., The Halo Antenna is a fascinating piece of Amateur Radio antenna art. The design was popular with mobile and portable operators many years ago. In this video from Chuck (KK6USY), we get an excellent introduction to the theory behind the design and some practical suggestions on construction, testing, and use of this "classic" 2 meter antenna., I am trying to make my own arrow antenna (the split boom 2m/70cm combined model) but I hit a snag. The manufacturer provides quite detailed assembly instructions which even seem to contain all dimensions of all the element lengths and spacing. But those dimensions seem to be inaccurate, as they don't match photographs of the antenna found on ..., 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):, 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..., Oops, I tried to make a 70cm loop just playing around and presto!!! A 2m very wide banded loop antenna., HYS 771Q 2m/70cm SMA-M Tactical Antenna Dual Band Foldable Portable Aerial Compatible with BF-UV3R YAESU VX-1R VX-2R VX-3R TYT 2 Way Radio (Camouflage) 1. £899. FREE delivery Mon, 29 Apr on your first eligible order to UK or Ireland. Or fastest delivery Tomorrow, 27 Apr., 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 …, Be sure and subscribe to these great channels:TheSmokinApe: https://www.youtube.com/channel/UCdJlIoWR3mf7apfB1dXS97ATemporarily Offline: http://youtube.com/t..., 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., To construct the antenna, first select a suitable length of grey 25mm conduit (as a minimum 1m but if you make it longer, you will have more room below the coil to attach to your antenna support). Basic arrangement of the 2m Half-Wave version. Drill two holes into the side of the conduit for the choke coil. The ‘top’ hole will be approx ..., An antenna for frequency F will also be resonant near F*3, so you may not even need 70cm elements. 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. The lowest impedance is offered by 1/4 wav, 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 ..., Shop dual-band, monoband, and tri-band VHF/UHF vertical antennas at DX Engineering. We offer the top names in Ham Radio antennas, including Comet Antennas, Diamond Antenna, Larsen Antennas, MFJ, and Hustler Antenna. Our selection of antennas handles from 10 watts to 350 watts of power and covers a wide range of frequencies., To make the Eggbeater antenna project even easier and more cost efficient, I decided to build the Eggbeaters myself, but to design the 70cm Eggbeater dedicated for the downlink and the 2m variant for the uplink. This post is about building the 70cm antenna. These two excellent documentations by ON6WG and F5VIF served as a basis for the ..., 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., Video on repurposing surplus 800mhz 5/8 wave antennas to VHF and UHF. These antennas have little resale value and as such are ready candidates for experiment..., 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., Mhz so it can generally covers the whole VHF amateur band. -Connect a SWR meter to the antenna and to the radio, making sure you attached it to the right connector posts. -Take a SWR reading, and if it is beyond 1.5, cut the 19.5" VHF element rod 1/8" at a time until the readings is in between 1-1.5. -Theoretically , a reading of 1 is the best ..., Amazon.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;, 2 meter 70 CM or 440 Mhz antenna building parts I found were cheap and the antenna did pretty good! I love the SWR. The SWR was Low. The 2 meter antenna...