츩ʿµǰ

HOME

ENGLISH


English

Build your own antenna analyzer

Building the antenna - Calculating your quarter wavelength The first step in building any antenna is to calculate your effective wavelength. Ocena sprzedającego: pozytywna w 100,0%Lokalizacja: HK, Hong KongDostawa: bezpłatnaHomebrew SWR meter for VHF, UHF and SHF …Przetłumacz tę stronępe2er. 65-3. A write-up and information for building your own is in the attachment below "K6BEZ Antenna Analyser". An HF Antenna Analyser for under $50. The Fun of Kit Building Carl’s Quiz – Antenna Tuners Keyers – The Robotic Keys • MFJ-259 antenna analyzer Ham Radio-Build your own L network antenna tuner. 2019 · Building the antenna - Calculating your quarter wavelength The first step in building any antenna is to calculate your effective wavelength. Homebrew Spectrum Analyzer A spectrum analyzer Radio Receiver-- Build Your Own 300 here is a parts list so you can start gathering items to build your own MT Omni X-wing antenna. Antenna Analyzer by Beric Dunn, K6BEZ. Second is percentage of meter deflection. Take the other end of the coax and plug it into your TV antenna spot. Control is …Rolling Your Own: building antenna splitters that perform better than most commercial units the oscillator output of the HP-4192A LF Impedance Analyzer was fed into a power splitter that split the signal two equal parts. September 22, 2017 Author: Elena Sotiri we can make an actual DIY antenna with a RP-SMA connection, that will •An Antenna Analyzer is more then a SWR meter. 4GHz wi-fi spectrum analyzer I was reading the Thinkgeek catalog a while back and an interesting gadget caught my eye: “Wi-Spy”, a 2. This Arduino-based AA gives you graphical and numeric performance results at a fraction of those high-priced units – and you can both build it yourself and even customize it if you wish. 1 3” ABS pipe, 24” long Available in 10ft lengths for around $5. The W8TEE/K2ZIA antenna analyzer (AA) has the following features: VSWR measurements for continuous scans for any amateur band frequency between 1-30MHz. 4 GHz antenna/feedline analyzer you can easily build. Mike Brink HNF, Design Technologist. See the link in the reference. can use to build your own low cost arduino antenna analyzyer project, by integrating an arduino pcb, lcd display or even better a …Homebrew Spectrum Analyzer Project. At the October Board of Directors (BoD) meeting, Fred AB1OC mentioned that in the Nov 2017 issue of QST, there was an article entitled “Build Your Own Arduino-Based Antenna Analyzer” by Jack Purdum W8EEE and Farrukh Zia K2ZIA. Analyzer PC program source code. If you offer a hardware kit using this software, show your appreciation by sending the author a complimentary kit or a donation to a cats refuge ;-) # include " U8glib. IF you need one I have 20 left. I did the math and constructed my own ‘personal’ uhf antenna specifically designed to Antenna Analyzer by Beric Dunn, K6BEZ. I don’t own an SWR Analyzer so testing was performed Build A Double Bazooka Antenna (K3DAV Version) By David Your antenna is now built and ready to be strung up. to put up an antenna on your own property ! have your equipment put on a spectrum analyzer 6. So just connect a frequency counter to the “freq out” jack of the analyzer. 27. RESOURCES. 08. So I made my own PCB fullt hole mounted. the Modularized Spectrum Analyzer Interested in owning your own RF Spectrum Analyzer ? This site is dedicated as a Home Experimenter's Guide to building a Quality, yet, Inexpensive 1000 MHz Spectrum Analyzer. How to Build a Low Cost WiFi Antenna. One Item that was new at Dayton this year is a tiny portable antenna analyzer made by iPortable. Longtime antenna designer Pete Bevelaqua decided to take on a VNA design. With it you can quickly check stuff like SWR and optimize the impedance of the antenna at the frequency it’s intended to be used. KA1MDA 8 Log Periodic Dipole Array for 2 Meters - Wideband performance in a small package . 09. The AA-30. David Casler 95,182 views. 0 Volt power source, or you can use batteries SDR Based Test Equipment Beric Dunn, K6BEZ “Build your own Antenna Analyser for under $20” Modify Derek AG6PO’s code for the Ham Radio 360 Analyzer to Design and build your own antennas with the help of this unique guide. 2012 · Wyświetleń: 25 tys. blogspot. Special Offers Visit us today and create your very own W8WWV - The 3805er Receiving Loop. Building your own Antenna Analyzer by ZS1JHG. BUILD AN HF ANTENNA TUNER MAKE A HOMEBREW HF-VHF ANTENNA TUNER (It really isn't all that difficult. MFJ or other make Antenna Analyzer Build your own Spectrum Analyzer, WA2PZO and WA2DRO. Antennas etc. The attractive thing about this design is the authors quote a …Building your own Antenna Analyzer by ZS1JHG. Most of their products are finished units that you can use right out of the box. Kliknij, aby wyświetlić na YouTube34:52Radio - HAM - Antenna: DIY quarter wave ground plane antennaYouTube · 27. want to v~ew. Pinterest. The Buddipole and 5 Build Your Own Minty Kool Keyer 17 . Cut the Cable! Build Your Own Digital TV Antenna Cable bills busting the budget? you may be missing out on free TV. I didn't have an antenna analyzer so I had to test it the dumb way: watch SWR while transmitting. SWR METER BUILD YOUR OWN STRIP LINE SWR METER. In our case, a network analyzer can measure the antenna input impedance, e. You could use the k6bez antenna analyzer script to test it first, which has the necessary functions to test and calibrate the circuit. com/index. com. can use to build your own low cost arduino antenna analyzyer project, by integrating an arduino pcb, lcd display or even better a led display and the aa-30. To that end, here are 5 of the coolest DIY TV antenna plans we found. Cody AE5PH. Many of us know the old formula: 2. Ask Slashdot: DIY 4G Antenna Design For the Holidays? What's the legality of building your own cell phone antenna, though? (If that matters to you. The Antenna Elmer By AC3L & N3LSS -- Design your own HF/VHF/UHF dipoles, Folded dipoles, Inverted Vees, Ground Plane, Half Wave Vertical, 5/8 Wave Vertical, Quads, 2 Meter Beams, Quarter wave line matching and lots more. The first Commercial Antenna Analyzers cost way too much, and don’t really show you your antenna characteristics in a user friendly way. As a result of the test, about -30dB is available at all frequencies. I actually have the kit, and it looks like a great unit, very professionally done, but I haven’t yet gotten around to building it. I was not disappointed!DIY-Spy: a homebrew 2. Lastly, make a simple 1/4 wave antenna out of a piece of wire and try it. How To Use An Antenna Analyzer-Basics. Read the VSWR from the indicator. 73 SA6VEE QRZ. How to Build Several Easy Antennas for Amateur Radio. Build your own Q Meter project: Test: Jun 24, 2015 Panoramic Spectrum Analyzer for HF Receivers band antenna? Do you require a dual- copper wire to build your own diplexer circuit. It is hosted in and using IP address 172. • Many antenna analyzers must be calibrated in order to produce reliable, realistic results • The operator must use the antenna analyzer properly to obtain reliable, realistic results • Improper use of an antenna analyzer can damage it, resulting in an expensive repair bill (or the purchase of a new analyzer, ouch!) buy your own parts. 2017 · How to Build Several Easy Antennas for Amateur Radio. However, Ikalogic also has a nice kit that allows electronics hobbyists and students to build their own logic analyzer at low cost. ) This page details several T-match tuners. This resource is listed under Technical Reference/Arduino, at Cheap Antenna Analyzer with Arduino resource page via dxzone. 02. If you only work one band this isn’t such a bad thing and could always build your own tuned circuit. 40 Comments So it is no surprise that hams like [jmharvey] will build an antenna analyzer from a …A kit in search of a vendor: W8TEE and K2ZIA Antenna Analyzer i am intresting on your project, can i build one ? will you send me detail on my email ? danieldwi69@gmail. This will simulate the impedance of a vertical antenna. AD606 AD606. Now, there’s an Arduino-based antenna analyzer RigExpert AA-30. Use your own judgement as to what you feel is a I am a brand new ham and your dipole has become my first fixed antenna. If you need to measure up to The EU1KY antenna analyzer V3 is an open source project to build your own, reasonably cheap but very functional antenna analyzer that is a handful tool for tuning coax-fed shortwave ham radio HF/VHF, and CB antennas. zero by RigExpert is a new DIY Antenna Analyzer component you. A Low Budget Vector Network Analyzer for vector network analyzer is the perfect choice to When you analyze an RF component like a filter, or an antenna, you Arduino DDS AD9850 Antenna Analyzer – tags AD9850 analyzer antenna Arduino DDS. If you know it, or have the original spool the coax came on, you should be fine. build your own antenna analyser for under $50 build your own antenna analyser for under $50 beric dunn k6bez rigexpert aa 30 zero – hf antenna analyzer 0 6 to 30 a standard aa 30 analyzer but without enclosure lcd display and keypad but zero is even more powerful than …You will receive the drawing package so you can build your own tilt up tower. Yes you can build an Antenna Analyzer that will outperform most commercial units. 1 November, 2016. The “$50 HF Antenna Analyser” started off life as a presentation for Pacificon 2013. Let’s dive right in. 01. This project is obtainable from the South Coast Amateur Radio Club in Put it on the antenna analyzer all by itself, don’t hook anything to it. SWR VALUES FOR METER DEFLECTION. Network Analysis FundamentalsCheap homemade 30 MHz - 6 GHz vector network analyzer Date 2016-08-02. 2018 · Ask Dave Episode 1: Antenna Analyzers - Duration: 18:02. Especially if you want to make your own TV antenna to pick up over the air digital or high definition video, increase your cellular range, wifi range, FM or AM radio reception, and so on. I saw a PDF where a guy tells you how :sunglasses: I have built a simple Antenna Analyser circuit based on :- I was hoping to can you show a picture of your build to get an idea . Delete. . Analyzer microcontroller source for PIC (HamStack) and Arduino. Connect the 5000-ohm resistor across the binding posts. build your own antenna analyzer This project is obtainable from the South Coast Amateur Radio Club in 2. It's really not all that difficult to build a useful VNA from scratch After visiting some web pages about 2. The Tarheel Screwdriver Antenna: one up on the Texas Bug Catcher Heaven help you if you don’t have an antenna analyzer. Ouch. It gives you the appproximate length of, for instance, 75Ω RG-11/U coax or whatever you want to use; again, make the initial cut a bit longer than you need, and shorten it after an initial test with an antenna analyzer. 2015 · Antenna analyzers usually include other functions than just SWR measurements such as return loss, impedance, and distance to fault. But sure, an analyzer speeds up the antenna tuning process and if you do decide to build your own traps an analyzer or other test equipment like a grid dip meter can be very helpful to test your traps prior to hanging the antenna. As he points out, you probably only need an analyzer for a day or two while you set up an antenna. There are plenty of plans online to build your own tape measure antenna, but no good step by step video that takes you through the process. 5 Build Your Own Minty Kool Keyer 17 . You can build your 7 Lis 20151 Nov 2016 A simple guide shows how to construct and use an HF antenna analyser using a Windows PC, micro-controller, and DDS evaluation board. Commercial Antenna Analyzers cost way too much, and don’t really show you your antenna …I will also share some existing projects that may help you build your own along with some use cases where a network analyzer may be employed. Diana Eng shows how to make your own End-Fed Half-Wavelength Antenna (EFHWA) for portable radio operations. At the time, I could only find one kit and one DIY antenna analyzer project and wondered why 29 Nov 2017 Antenna analyzers kind of feel like a one-trick pony to me. You can build your Building Your Own Antenna Analyzer by ZS1JHG - Free download as Word Doc (. The vector network analyzer (VNA) is an essential tool for measuring the complex impedance of a circuit at a given frequency. Homebrew Arduino/ AD9850 Antenna Analyzer-Sweeper K6BEZ's Design. php/products/antenna-analyzerBuild your own 2M antenna; Software. To be used for Ham radio antennas or wind turbines. build your own antenna analyzerAug 10, 2017 Then, someone suggest building your own. Firmware Updates. It should be a resistive load so the X component should read zero. buildyourownantenna. This project is obtainable from the South Coast Amateur Radio Club in Australia for AU dollars 150 in kit form or as an alternative you can order the PCB and Picaxe microchip pre-programmed. h "A Wifi (V)SWR Meter to build yourself Attach the antenna under test to the Zx port of the RF head. Ask Slashdot: DIY 4G Antenna Design For the Holidays? More Login. Portable 6M Tomato Stake Loop Antenna—W1FMR as 0. Software. September 22, 2017 Author: Elena Sotiri (4 votes, average: If we want even better WiFi signal, we can make an actual DIY antenna with a RP-SMA connection, that will work as a directional WiFi booster. This is the wavelength of a signal in free space, however we are interested in the wavelength in our transmitters. Youkits Technology Incorporated, the QRP radio company that making HB1B HB1A CW transceiver, FG02 FG01a antenna analyzer, TJ2B TJ5A SSB CW transceiver. After you build your own antenna, you need a proper Low Loss Cable with connectors to connect antenna with your modem/router. 5 inch Cross-needle SWR/Wattmeter, 1000 Volt capacitors, Lexan front panel decal, all Build your own HF balun A balun is a MUST for dipoles or similar antennas when they are feed with coaxial cables. make a simple 1/4 wave antenna out of a piece of wire and try it. As with all GLA How can I safely transmit without an antenna tuner or SWR meter? How can I transmit without an antenna tuner? an antenna analyzer is essentially a combination Build A Double Bazooka Antenna (K3DAV Version) By David Your antenna is now built and ready to be strung up. Anyone make their own Buddipole/stick? (self. Default style Contact us;05. 5/5(3)Wideo build your own antenna analyzer bing. 2018 · In addition to an antenna analyzer its a spectrum analyzer, full 2 port vector network analyzer, power meter and some other stuff in a hand held package that goes to 50GHz. 4 GHz antenna/feedline analyzer you can easily build. If you have a 75 Ohm antenna connector, you will need to buy a 300 Ohm to 75 Ohm adaptor (Radio Shack). I am a brand new ham and your dipole has become my first fixed antenna. For example ideally antenna would radiate all the energy it gets, but all antennas reflect some of the energy back to the source and only radiate energy at certain frequencies. N4UJW ANTENNA DESIGN LAB - Ham Radio Antennas - Design 0r Build Your own Ham Radio Antenna A few links with detailed instructions. com/videosKliknij, aby wyświetlić na YouTube8:41DIY No Frills AD9850/Arduino Antenna AnalyzerYouTube · 03. But after the number of times, I had to explain to others what it does and why they should use it, why a license is worth paying for and thinking about how it works, the thought of “doing it After you build your own antenna, you need a proper Low Loss Cable with connectors to connect antenna with your modem/router. 4gHz WiFi. If you're handy you can build your own end fed antennas. 4. Here is Guide to Antenna Cables & Connectors. The quality and type of the antenna needed depends on the link strength, how much power you will receive vs the noise floor and the RX minimum receive strength etc. vector network analyzer (HP-8714B) W2BRI - An Easy Guide to How to Build Your Own Magnetic Loop Page 1 of 19 10. 50 Mhz uW power meter ( AD606 ) Build your own Spectrum Analyzer, WA2PZO and WA2DRO. You could do without a antenna analyzer if you build your six meter folded dipole antenna system with the following dimensions: ==> Six meter folded dipole made of 450 ohm ladder line, #16 7 strand copper clad steel wire : 8. It's impossible verify that antennas/cables are opertating correctly by using a ohmmeter because they only check for DC continuity. com. The tricky part is that it needs to know your coax's Velocity Factor. July 13, 2016 | 15:23. Using scrap wire with stock lumber, build a slick homemade antenna and stay tuned. •An Antenna Analyzer can help you find problems in your antenna system. One of the resulting signals passes through a 50 Ohm feedthrough and goes directly to Channel A. To build a good antenna, you would preferably use a Vector Network Analyzer so you can do proper measurements of your antenna design. Sometimes, your WiFi signal just doesn't reach where you want it to reach. You are generally expected to rig up your own HF antenna from bits of wire strung across the garden (unless you want to spend even more money than you spent in 2). It was late in the afternoon when testing was complete and I headed inside to my operating position to hook up the antenna to my transceiver. Many hams connect the center conductor of the coaxial cable to one side of the dipole, and the shield to the other. Build your own HF balun A balun is a MUST for dipoles or similar antennas when they are feed with coaxial cables. When it comes to getting the most enjoyment out of Amateur Radio, there is nothing more important than your antenna system. 12:52. Post #1452 Build your own 18650 LiFePO4 battery pack for ham radio no soldering. Short description. Build a 5 to 850 MHz Spectrum Analyzer. He details his build from scratch at HDDG19. Cord Cutting. MFJ has now made it fun and economical to build and test your very own MFJ antenna tuner. After visiting some web pages about 2. I use a FT-450D, with just the built-in tuner, and have built a few styles of single-band antennas using an antenna analyzer. If not, I found a Build your own logic analyzer. Why not build some of the sim…" "4-input mini Logic Analyzer" See more I'm sure most hams would agree the most exciting part about making your own antennas is hooking up the rig and seeing if one can actually make a contact using the homebrew equipment. By Chris Morrison on June 16, 2016 Aircraft, Aviation, Science. The one described here is capable of dissipating 100 Watts for short periods of time and provides a low power 50Ω port suitable for connecting a receiver or Microsoft Word - Build your own Dummy load…05. 2018 · 3. A 9:1 Balun For Your End Fed Antenna End-Fed antennas do have their place in radio and other communications work. to put up an antenna on your own property ! have your equipment put on a spectrum analyzer DIY-Spy: a homebrew 2. PA1BM have build this Antenna Build your own 2M antenna. Network Analysis Fundamentals To build a good antenna, you would preferably use a Vector Network Analyzer so you can do proper measurements of your antenna design. W2BRI - An Easy Guide to How to Build Your Own Magnetic Loop Page 1 of 19 10. Autor: TisBoyoWyświetlenia: 76Antenna Analyzer – Ham Radio DesignsPrzetłumacz tę stronęhamradiodesigns. Build Your Own Antenna. My homebrew buddipole worked flawlessly. Predetermined US band edges for quick entry of scan start and end points – all lower and upper29. We will be able to connect this device to our laptop, desktop PC, or the router. 4GHz wi-fi spectrum analyzer I was reading the Thinkgeek catalog a while back and an interesting gadget caught my eye: “Wi-Spy”, a 2. Abstract. Build your own Spectrum Analyzer, WA2PZO and WA2DRO. By comparing them, you should be able to construct a tuner to your own particular requirements. article entitled “Build Your Own Arduino-Based Antenna Analyzer” by Jack Purdum What is an Antenna Analyser? Something that tells you ○ What Frequencies will this piece of wire resonate on? ○ Will it damage my rig if I key up?Nov 1, 2016 A simple guide shows how to construct and use an HF antenna analyser using a Windows PC, micro-controller, and DDS evaluation board. Zobacz więcej filmów przedstawiających build your own antenna analyzerAn HF Antenna Analyser for under $50 - K6BEZ …Przetłumacz tę stronęhttps://sites. Poor Man's Spectrum Analyzer, WB5IPM, 73 Magazine 198208. What is an Antenna Analyser? Something that tells you ○ What Frequencies will this piece of wire resonate on? ○ Will it damage my rig if I key up?I find in the internet a very interesting Project. It’s a great tool and it helps me with my work every day. At the time, I could only find one kit and one DIY antenna analyzer project and wondered why Nov 29, 2017 Antenna analyzers kind of feel like a one-trick pony to me. The 'Tenna Dipper: A "Poor Man's" Antenna Analyzer Mac A. 2M Aluminum Slim Jim Antenna. if you aren't into building your own. Thread In addition to an antenna analyzer its a spectrum analyzer, full 2 port vector network analyzer, power meter and 3. ) This page details several T-match tuners. project to build your own, reasonably cheap but very functional antenna analyzer that is a handful tool. An antenna analyzer or in British aerial analyser (also known as a noise bridge, RX bridge, SWR analyzer , or RF analyzer ) is a device used for measuring the input oothandel antenna analyzer Gallerij - Koop Goedkope Build Your Own C# Analyzer and Code Fix - December 7, 2018; I’ve always loved Resharper. Kliknij, aby wyświetlić na YouTube14:21How to make a Ham Radio Speaker Wire AntennaYouTube · 21. Low Cost HF Antennas & Accessories Phil Salas - AD5X AD5X Antenna Building Hints AD5X Build your Own Coil Build a network ADS-B and MLAT (Mode S) receiver in two hours for USD$100 / EUR€80. Reply Delete. • My spin on a homebrew 'Tenna Nov 7, 2015 This my build of YouTube user jmhrvy1947 Antenna Analyzer http://youtu. 2015 · $40 Antenna Analyzer with Arduino and AD9850. Under construction !! The antennas that I describe below, have not been verified on a Antenna / Network Analyzer. If you make it obviously too long then snip bits off the meter should reflect the changes. txt) or read online for free. If you make your own one point – I This lightweight antenna is perfect to use for fox hunts or as a portable directional antenna for public service events. com is a website which ranked N/A in and 2467498th worldwide according to Alexa ranking. The EU1KY antenna analyzer V3 is an open source project to build your own, reasonably cheap but very functional antenna analyzer that is a handful tool for tuning coax-fed shortwave ham radio HF/VHF, and CB antennas. 09. 1 November, 2016 Build Your Own Cheap Antenna Analyser; End-Fed 24ft Antenna End-Fed 24ft Antenna - Quality of Balun? (Read 51821 times) N3HKN. Find helpful customer reviews and review ratings for Build Your Own Transistor Radios: A Hobbyist's Guide to High-Performance and Low-Powered Radio Circuits at Amazon. zero by RigExpert is a new DIY Antenna Analyzer component you. In case we already have a matching network, the RF network analyzer can measure the return loss and let us tune the system to minimum returned power. "A spectrum analyzer (SA) is only worth as much as its first local oscillator!" The AD8307 in an Antenna experiment. Ham Radio-Build your own L network antenna tuner. 4GHz spectrum analyzer on a USB stick. 05. It's really not all that difficult to build a useful VNA from scratch At the October Board of Directors (BoD) meeting, Fred AB1OC mentioned that in the Nov 2017 issue of QST, there was an article entitled “Build Your Own Arduino-Based Antenna Analyzer” by Jack Purdum W8EEE and Farrukh Zia K2ZIA. Build A Double Bazooka Antenna (K3DAV Version) By David – K3DAV If you decide you want to use a 75 ohm type of coax to build your Bazooka, just consider these facts before you make the decision. If you have an antenna analyzer, you can test the antenna at your workbench to check that everything is properly connected before going out into the field. Connect the antenna analyzer to the red wire BNC connector. Introduction • Many antenna analyzers must be calibrated in order to produce reliable, realistic results drive an LED to indicate the amount of antenna mismatch • Provides a tap for your frequency meter • Fits in an Altoids® tin with a 9V battery!Building your own Antenna Analyzer by ZS1JHG. com - Build Your Own Antenna buildyourownantenna. How to Build a Cheap Antenna Tuner for a Ham Radio By Tracy Underwood ; Updated April 12, 2017 In fact, you will likely enjoy it more by building your own simple equipment, and then making contacts with it. Taktenna Antenna Project. It is much more fun (and less expensive) to build your own antenna, rather than buy a commercial one. Just click on the images MFJ has now made it fun and economical to build and test your very own MFJ antenna tuner. SainSonic RA-07A SWR HF VHF UHF Antenna Impedance Analyzer Meter. 3. Fred Brown, W6HPH , Communications Quarterly Winter 1997, Build a high-performance Spectrum Analyzer for a fraction of the cost, Radio Electronics 199108. Ham Radio - Build your own L network antenna tuner - Duration: 12:49. 98 * frequency in MHz = Wavelength in meters. schwab-intra. So with that, watch the video and go ahead and build your own tape measure yagi. 2015 · Wyświetleń: 80 tys. Hello. g . Blog at WordPress. 40 Comments So it is no surprise that hams like [jmharvey] will build an antenna analyzer from a DDS module and an Arduino instead of dropping a Put it on the antenna analyzer all by itself, don’t hook anything to it. This project is obtainable from the South Coast Amateur Radio Club in Australia for AU dollars 150 in kit form or as an alternative you can order the26. Zero HF Antenna Analyzer. 7 GHz / WiWhy not build some of the simpler ones? Here's Build your own 4-channel logic analyzer. Hardware components · RF frontend schematic · Principle of operation · Source The EU1KY antenna analyzer is an open source project to build your own. Make a Multiband EFHWA for Amateur Ham Radio. Building Your Own Antenna Analyzer by ZS1JHG - Free download as Word Doc (. Once acquired, you can use this manual to build the AA. The French company Ikalogic develops and produces various types of logic analyzers. Views 0 Comments. Test equipment circuit diagrams and electronic projects. Antenna Analyzers; Frequency Counters Texas BugCatcher HF Mobile Antenna Info designed and hand constructed in our own machine shop in Texas. Special: Creating Your Own Home FM Antenna Either way, this page will teach you how to build a home antenna of the caliber of the pro's for under $15. be/C6YxD72sX_Y It has been a rather lengthy project, but has been  Arduino Vector Graphic Antenna Analyser | DC2WK Blog dc2wk. operation · Source code The EU1KY antenna analyzer is an open source project to build your own, reasonably cheap but very functional antenna analyzer that is a handful tool. 2008 · Topic: Info on building mini bug catcher antenna (Read 3940 times) KI4HNN. I also observed that having my hands come near the antenna analyzer affected the results. The correct way to verify antennas/cables is at their operating frequency (or close to it). simply use your parents old and weathered antenna on the roof of their house and Wyświetlenia: 93 tys. 53. DIY-Spy: a homebrew 2. 00. Here is a simple 2. I put my feed point 12" apart and separated them with pvc for spacers. 11. Your best bet is to read a few books, take a class, then if you are still interested, get access to a network analyzer and spectrum analyzer and try out some designs in a Faraday cage. You get the popular MFJ-941E, all of its guts totally apart so you can build it yourself. Author Info (gag) to put up an antenna on your own property ! have your equipment put on a spectrum analyzer, or a harmonic detector to PROVE your equipment is NOT causing any unwanted interference. Requires An FM receiver with a 300 Ohm or 75 Ohm antenna connections on the unit. April 29, RIP MFJ - Mini 60 The Android Powered Antenna Analyzer Build a network ADS-B and MLAT (Mode S) receiver in two hours for USD$100 / EUR€80. BUILD AN HF ANTENNA TUNER MAKE A HOMEBREW HF-VHF ANTENNA TUNER (It really isn't all that difficult. Your antenna might be a bad match but you won't know till you try it. The problem with that was all the back and forth when went outside the tuned range. There is an antenna analyzer kit on the market. The most important thing is to start practicing as soon as possible, not to build the best rig in the world. 2018 · Wyświetleń: 18 tys. zero. Most cell phones already have built in fractal antennas. doc), PDF File (. The references I found on the net used the parallel port or a serial link to a host computer. Post #765. Background. Replies. Stay tuned! Qty Description Notes 1 Aluminium flat stock 1 1/2” X 1/16” X 48” 1/8” thick can be used. 2014 · Build a HF antenna analyser for £50! Posted by Matt under Antenna Analyser [3] Comments . 2017 · Page 207-Mini-HowTo Build your own TX antenna for FPV FPV Equipment25. So it is no surprise that hams like [jmharvey] will build an antenna analyzer from a DDS module and an Arduino instead of dropping a few hundred dollars on a commercial unit. 06. Inexpensive and Simple Mono- or Multi-Band HF Ham Radio Antennas, by PrepperDoc Hugh James Latimer July 7, 2015 July 15, 2018 One of the distinguishing features of traditional Ham radio, particularly shortwave (high frequency or “HF”) Ham radio, was that you generally had to literally make your own antenna. Updated and revised to provide clear answers to questions frequently asked by hobbyists and electronics technicians, Practical Antenna Handbook, Fifth Edition blends theoretical concepts with hands-on experience--requiring only high school mathematics I had a coaxial switch at the tuner and switched in my antenna analyzer so that I could pre-tune the antenna. How to Build a ZS6BKW Antenna (optimized G5RV) David recommends the use of an antenna analyzer. If the frequency is high then, you will need to lengthened the radial, etc. Thursday, April 5, 2018 Ham Radio-Build your own L network antenna tuner. Rigexpert AA-30. Project Overview Document. BUILD YOUR OWN STRIP LINE SWR METER. 6. Building your own Antenna Analyzer by ZS1JHG. MFJ-941EK TUNER KIT, 941E, HF, 300 WATTS, W/ CROSS METER. Zero. google. Using the chart as a starting pint, hook-up your antenna analyzer and find the lowest SWR. glenn vk3pe. Simple Ham Radio Antennas--Zepp Antenna …Calculators for Making your Own Wire Antenna . The instructions from W3FF are pretty thorough. Simple Ham Radio Antennas--Simple dipole antenna f Simple Ham Radio Antennas--How-to build your own H The Ultimate Bugout Mobile Portable Ham Radio Surv Simple Ham Radio Antennas--How to Build a ZS6BKW A Simple Ham Radio Antennas--HyEndFed 5 Band HF Ante Simple Ham Radio Antennas--Stealth HF Antenna for April (29) March (30 Arduino DDS AD9850 Antenna Analyzer – tags AD9850 analyzer antenna Arduino DDS. How to Build a Cheap Antenna Tuner for a Ham Radio By Tracy Underwood ; Updated April 12, 2017 In fact, you will likely enjoy it more by building your own …The vector network analyzer (VNA) is an essential tool for measuring the complex impedance of a circuit at a given frequency. Especially if you want to make your own TV antenna to pick up over the air digital or high definition video, increase your cellular range, wifi range, FM or AM radio reception, and so on. You need an antenna analyzer to set this up. You can purchase the best ham transceiver on the planet, but if your antenna system is poor, your investment will largely go to waste. which included the suggestion that I build a simple ¼ wave ground plane antenna. The antenna equivalent circuit (inductance, capacitance and resistance) and The antenna loop has to be connected to an impedance or network analyzer. Review this The Antenna Elmer By AC3L & N3LSS -- Design your own HF/VHF/UHF dipoles, Folded dipoles, Inverted Vees, Ground Plane, Half Wave Vertical, 5/8 Wave Vertical, Quads, 2 Meter Beams, Quarter wave line matching and lots more. 4 GHz ISM band spectrum analyzers based on the CYWM6935 module, I tried to build my own analyzer, but with some improvements. The 3dB into an open (or short) works out to make a 6dB return loss which the analyzer should read as a 3. You can make use of the Antenna analyzers usually include other functions than just SWR measurements such as return loss, impedance, and distance to fault. I will also share some existing projects that may help you build your own along with some use cases where a network analyzer may be employed. The tricky part is that it needs to know your coax's Velocity Factor. com/12275-diy-how-to-make-low-cost-wifi-boosterDIY: How To Make Your Own Low Cost WiFi Booster. amateurradio) It's my go-to antenna for SOTA activations. 6 Aug 2015 So it is no surprise that hams like [jmharvey] will build an antenna analyzer from a DDS module and an Arduino instead of dropping a few Build Your Own Antenna Analyser for under $50 Beric Dunn K6BEZ Build Your Own Cheap Antenna Analyser. A Low Budget Vector Network Analyzer for vector network analyzer is the perfect choice to When you analyze an RF component like a filter, or an antenna, you The 5 Coolest DIY TV Antenna Plans Anyone Can Build. 98 * frequency in MHz = Wavelength in meters. Tweet by wv2yau. * * * A Bad Rap? Radio amateurs need an antenna - better yet: a shack with an antenna farm! To get "on the air" you need an aerial or "antenna". This guide shows how to construct and use a DIY HF antenna analyzer using Arduino for less than $50. The MFJ-1890 is a lightweight aluminum antenna designed to operate in the 10 meter band and we had hoped that with a little messing around we could get it to tune to the 11 meter cb band. pdf), Text File (. buy your own parts. Position the RF head as close as possible to the antenna under test, using as little coax cable as possible. 15927. Documentation can be found at : https Build Your Own Antenna antenna analyzer. If you don’t have an antenna analyzer then you will have use your SWR meter on your radio or tuner. About nine months ago, Bill Bowers and I began what became a rather thorough study of signal splitters. •If the Impedance is 50 ohms but, the SWR is not 1. Set the amateur ham radio homebrewing links for beginners, seasoned ham operators. Use your own judgement as to what you feel is a safe amount for supporting this antenna…Double BiQuad sector antenna for AWS 1700/2100 MHz / 3G / HSUPA / HSDPA / HSPA+ / LTE / 4G After you build your own antenna, you need proper cable with connectors to connect antenna with your modem. , its phase and magnitude, which would enable us to calculate the matching circuitry for 50 input impedance. BB A kit in search of a vendor: W8TEE and K2ZIA Antenna Analyzer On it's own, the MEGA board runs about 60-67mA and runs cool. You've seen wireless adapters at the store, but they can cost a lot more than you want to spend. This simple Antenna Analyzer could be a nice project for anyone just getting started in setting up a station on the HF bands. The internet is loaded with plans for building your own SWR meter. Here you can download all information over the Basic In this Instructable I'll show you how I built a low-cost antenna analyser which (with a great calibration resistor feature) and done a really good looking build. Ask Slashdot: DIY 4G Antenna Design For the Holidays? 135. You can make use of the Build Your Own Antenna antenna analyzer. RELATED POSTS. DIY No Frills AD9850/Arduino Antenna Analyzer Build your own L 2. Predetermined US band edges for quick entry of scan start and end points – all lower and upper So it is no surprise that hams like [jmharvey] will build an antenna analyzer from a DDS module and an Arduino instead of dropping a few hundred dollars on a commercial unit. Make relative measurements on antenna to find directivity Mini60 HF ANT SWR Antenna Analyzer $139. However SWR meters can be built with very few parts and with simple tools. Like everything else, antennas come in many forms and flavors. (e. 03. Connect the 5000-ohm Full solder and working well EU1KY V3 antenna analyzer frontend board The EU1KY antenna analyzer V3 is an open source project to build your own, reasonably cheap but very functional antenna analyzer that is a handful tool for tuning coax-fed shortwave ham radio HF/VHF, and CB antennas. pcsteps. The Fun of Kit Building Carl’s Quiz – Antenna Tuners Keyers – The Robotic Keys • MFJ-259 antenna analyzer 73 Magazine May 1992 (#380) Poor Ham's Dynamic Component Analyzer - Build your own Circuit detective . After hanging the antenna from a suitable tree on a 10′ Coax, the SWR was measured with an MFJ 269 Antenna Analyzer. Homemade HDTV Antenna Amplifier | channel 7 working, listed in the first page of channel listings. 0:1. How many watts can a J-Pole antenna handle. Special Offers Visit us today and create your very own Double Sided PTH PCB & Two Toroids make this combiner/splitter a very useful item for your receiver or test bench HF Antenna Matching Balun for QRP Radios RF Power Measurement Details on an indoor vhf delta loop stealth antenna for both transmit and receive that you can build cheap. He build with Arduino Modules a good Antenna Analyser. But it can be frustrating without an antenna analyzer (or a relationship with an Elmer that has one). Build Your Own Antenna Analyser for under $50 Beric Dunn K6BEZBuild Your Own Cheap Antenna Analyser. Portable 6M TomatoBuild Your Own Electromagnetic Interference (EMI) Detector With this simple project, which requires only about $40 and one hour, you could build your own EMI detector and start using it to save on Build Your Own Antenna Analyser for under $50 Antenna Analyzer Notes 2 CTU, Dayton, 2011 transmitter, were common inside stations for decades, the main feature of the antenna analyzer was the ability to take it outside to the antenna. Read honest and unbiased product reviews from our users. g. article entitled “Build Your Own Arduino-Based Antenna Analyzer” by Jack Purdum I am just getting into building my own antennas and tuning them so therefore I really need an analyzer. 1 uF on the schematic and a ceramic part The Antenna Elmer By AC3L & N3LSS -- Design your own HF/VHF/UHF dipoles, Folded dipoles, Inverted Vees, Ground Plane, Half Wave Vertical, 5/8 Wave Vertical, Quads, 2 Meter Beams, Quarter wave line matching and lots more. com ham radio guide build your own home made antenna analyzer with an arduino micro or a cheeper one with a pic processor. Step-by-step instructions along with a link to your statistics and how to register for a free FlightAware Enterprise account. It's really not all that difficult to build a useful VNA from scratch the Modularized Spectrum Analyzer Interested in owning your own RF Spectrum Analyzer ? This site is dedicated as a Home Experimenter's Guide to building a Quality, yet, Inexpensive 1000 MHz Spectrum Analyzer. RigExpert AA-30. By down-converting in the analog domain and splitting the signals into discrete bands, you can build a spectrum analyzer while using a much-slower, less power-hungry microcontroller than a digital operation · Source code The EU1KY antenna analyzer is an open source project to build your own, reasonably cheap but very functional antenna analyzer that is a handful tool. Portable 6M TomatoBuild Your Own Digital TV Antenna Switch on your TV, orient the antenna, and enjoy the show. BBThe EU1KY antenna analyzer is an open source project to build your own, reasonably cheap but very functional antenna analyzer that is a handful tool for tuning coax …The EU1KY antenna analyzer V3 is an open source project to build your own, reasonably cheap but very functional antenna analyzer that is a handful tool for tuning coax-fed shortwave ham radio HF/VHF, and CB antennas. AD606 AD606 data sheet. Your antenna might be a bad match but you won't know till you try it. November QST Arduino Based Antenna Analyzer. but if you are interested in making your own VNA or are just interested in looking at the EU1KY homemade antenna analyzer on STM32F746G DISCOVERY development board Short description The EU1KY antenna analyzer is an open source project to build your own, reasonably cheap but very functional antenna analyzer that is a handful tool for tuning coax-fed shortwave ham radio and CB antennas. DIY: How To Make Your Own Low Cost WiFi …Przetłumacz tę stronęhttps://www. Presentation at Pacificon 2013. Analyzer PC program (run time) Analyzer PC program source code. qurred to build your own HF spec- trum analyzer may be Th~s spectrum analyzer ~nrerface wntalns its own HF receiver. 2018 · This article will tell you how to build antennas. However, it’s possible to build your own, so I set about looking to see if anyone had published circuits for homebrew antenna analysers. This resource is listed under Technical Reference/Arduino Antenna Technical Reference DX Resources Contesting Ham Radio Software Equipment Manufacturers Shops Operating Aids Operating Modes Propagation Internet & Radio Radio Scanner Shortwave Homebrew Spectrum Analyzer Project. The VK5JST Antenna Analyser Kit costs about $110 USD. The attractive thing about this design is the authors quote a price point of $50. 3 Responses to “Build a HF antenna analyser for £50!” You can leave a response, or trackback from your own site. A frequent question that is asked about my antennas is how much power can they handle. It's very cheap and easy to build. The project consists of three parts; a Microcontroller, AD9850 DDS module, and a VSWR Bridge. Building a Vector Network Analyzer without any prior design knowledge. Download user manual An antenna analyzer has to have a signal source as well. Here you can download all information over the Basic 10 Aug 2017 Then, someone suggest building your own. It works great! It is temporarily mounted at 19ft on 2 sections of Rohn 15G tower that is bracketed to my garage. DIY: How To Make Your Own Low Cost WiFi Booster. nl/wifiswrA Wifi (V)SWR Meter to build yourself Attach the antenna under test to the Zx port of the RF head. I have home brewed a The EU1KY antenna analyzer V3 is an open source project to build your own, reasonably cheap but very functional antenna analyzer that is a handful tool for tuning coax-fed shortwave ham radio HF/VHF, and CB antennas. On it's own, the MEGA board runs about 60-67mA and runs cool. If your equipment is clean, then it's up to the other party to take action The vector network analyzer (VNA) is an essential tool for measuring the complex impedance of a circuit at a given frequency. You can do it for free or cheap with components you already own. Similar ideas Simple Ham Radio Antennas--Simple dipole antenna f Simple Ham Radio Antennas--How-to build your own H The Ultimate Bugout Mobile Portable Ham Radio Surv Simple Ham Radio Antennas--How to Build a ZS6BKW A Simple Ham Radio Antennas--HyEndFed 5 Band HF Ante Simple Ham Radio Antennas--Stealth HF Antenna for April (29) March (30 However, it’s possible to build your own, so I set about looking to see if anyone had published circuits for homebrew antenna analysers. A Practical NVIS Antenna . It's up to the designer to select the best design for the job at hand and to utilize that design in the most efficient way. Post #1452 Northbear AW07A HF/VHF/UHF 160M Impedance SWR Antenna Analyzer For Ham Radio Hobbyists DIY AEcreative 10-160 Meter HF Radio Wire Loop Antenna Balun Unun DIY kit Make relative measurements on antenna to find directivity Mini60 HF ANT SWR Antenna Analyzer $139. 64 meters) long. This section will list several projects which will allow you to build your own RF design test equipment. This project is obtainable from the South Coast Amateur Radio Club in Australia for AU dollars 150 in kit form or as an alternative you can order the27. Predetermined US band edges for quick entry of scan start and end points – all lower and upper Constructing a precision SWR meter and antenna analyzer. Use your own judgement as to what you feel is a amateur ham radio homebrewing links for beginners, seasoned ham operators. The first attempt was a bit off the mark, but by adjusting the feed point location and gap dimension, a very suitable result was obtained, as shown in the chart in 06. Only problem is it cost $110k. • Many antenna analyzers must be calibrated in order to produce reliable, realistic results • The operator must use the antenna analyzer properly to obtain reliable, realistic results • Improper use of an antenna analyzer can damage it, resulting in an expensive repair bill (or the purchase of a new analyzer, ouch!) Constructing a precision SWR meter and antenna analyzer. Every amateur experimenter who works on or uses antennas needs one of these. by and a wire so you can build your own DC 10. 29. The finished kit features 1. I did the math and constructed my own ‘personal’ uhf antenna specifically designed to Antenna Analyzers MAX6 antenna analyzer is not just an ordinary meter for antenna – it’s much more! Build Your Own Satellite The quickly dropping cost of Build a Phasing Harness For Stacking Antennas It should be noted that the frequency dial of the MFJ antenna analyzer is too inaccurate for what is needed here. Introduction. if the antenna is even semi resonate to the frequency your trying to receive you will hear the transmission, digital or analog. The dimensions of Build a simple HF/VHF 100W dummy load Chris G4AKE Every radio amateur should own a dummy load. Build your own Q Meter project: Test: Jun 24, 2015 Panoramic Spectrum Analyzer for HF Receivers How to Build Several Easy Antennas for Amateur Radio. It is constructed of 2 lengths of “Box” steel inserted inside of each other. 6. Build Your Own Antenna Analyser for under $50 Antenna Analyzer Notes 2 CTU, Dayton, 2011 transmitter, were common inside stations for decades, the main feature of the antenna analyzer was the ability to take it outside to the antenna. "Build your own logic analyzer" "If you’re just getting into hobby electronics chances are there are lots of tools you’d like to get you hands on but can’t yet justify the purchases. An antenna is an antenna and will not discriminate between digital and analog signals. 560 views . You need to look at more than just VSWR. 1 November, 2016 Build Your Own Cheap Antenna Analyser; Build a network ADS-B and MLAT (Mode S) receiver in two hours for USD$100 / EUR€80. Rolling Your Own: building antenna splitters that perform better than most commercial units by John Bryant and Bill Bowers. Rolling Your Own: building antenna splitters that perform better than most commercial units the oscillator output of the HP-4192A LF Impedance Analyzer was fed into a power splitter that split the signal two equal parts. PA1BM have build this Antenna $40 Antenna Analyzer with Arduino and AD9850. 66 feet (2. This is a common concern as there are many different styles and construction methods of J-Pole antennas. 4 GHz Antenna/Feedline Analyzer. Recently I began delving into the world of amateur radio. My name's Don, AC2RS, and this is a guest article. for Emergency or Temporary Communications or you can make your own support using PVC tube sections. Collection by Build your Own Digital TV Antenna by Popular Mechanics #Digital_TV #Antenna. 07. MFJ or other make Antenna Analyzer Building a Vector Network Analyzer without any prior design knowledge. Simple Ham Radio Antennas--How to Build a ZS6BKW Antenna. Microwave construction techniques and basic electronic skills will be required on some projects, but the tools you can make will equal what the so-called "professionals" use. or feed the antenna Input 219 Responses to Antenna Analyser Project code on the yahoo group for K6BEZ antenna analyzer under VU2SPF folder with your original notice, and without A kit in search of a vendor: W8TEE and K2ZIA Antenna Analyzer On it's own, the MEGA board runs about 60-67mA and runs cool. A Hawaii-based Amateur Radio Antenna Blog focusing on the theory, design, and use of homemade antennas. Double BiQuad sector antenna for 3. In order to build your own 3805er, collect the following parts: Connect the antenna to an antenna analyzer. Homebrew Spectrum Analyzer A spectrum analyzer Radio Receiver-- Build Your Own 300 MFJ-1890 10 Meter Moxon Antenna (Tested on 10 meters & 11 meters/CB Band) Recently I got my hands on MFJ's new 10 meter Moxon antenna. Homebrew spectrum analyser: I decided to try my hand at building a spectrum analyser after Activity in the HF spectrum can be seen using a short antenna. Poor Man's Spectrum Analyzer, WB5IPM, 73 Magazine 198208. 01:1 VSWR. If you make your own one point – I Antenna Analyzer by Beric Dunn, K6BEZ. build your own home made antenna analyzer with an arduino micro or a cheeper one with a pic processor. or Pascal from the old days). All information, images, and documents on this website are the sole property of MFJ Enterprises, Inc Build Your Own Antenna – 1/4 Wave VHF Ground Plane Antenna 3. Here is Guide to Antenna Cables & ConnectorsNow how would you build a good antenna for a specific frequency range. > A Part of Hearst Digital Media Popular Mechanics participates in various affiliate marketing Special: Creating Your Own Home FM Antenna Either way, this page will teach you how to build a home antenna of the caliber of the pro's for under $15. This antenna analyzer is meant to rival the MFJ junk currently The EU1KY antenna analyzer V3 is an open source project to build your own, reasonably cheap but very functional antenna analyzer that is a handful tool for tuning coax-fed shortwave ham radio HF/VHF, and CB antennas. 129. I was not disappointed! The first circuit I found was in the book Ham Radio projects for Arduino and PICAXE , called Sweeper . You can tilt the tower down to work on your antenna or wind turbine at about 4’off the ground. Depending on what materials are used to build your antenna, its power rating could be vastly different. 4 GHz Antenna/Feedline Analyzer. I have been asked to put together a detailed article on a SWR meter. Zero HF Antenna Analyzer. prcguy. 8-30 MHz coverage, 300 Watts power handling, 1. Download user manual Full solder and working well EU1KY V3 antenna analyzer frontend board: The EU1KY antenna analyzer V3 is an open source project to build your own, reasonably cheap but very functional antenna analyzer that is a handful tool for tuning coax-fed shortwave ham radio HF/VHF, and CB antennas. bug catcher coils the size of garbage cans, and winding your own whips from raw fibreglass and resin. 8-12. Building a Vector Network Analyzer without any prior design knowledge. First figure of pair is SWR. and shorten it after an initial test with an antenna analyzer. I've A Wifi (V)SWR Meter to build yourself Zx is the antenna port. •SWR is an indicator of how well the feed line is matched to the antenna. •An Antenna Analyzer can help maximize your antenna system’s performance. Build a Phasing Harness For Stacking Antennas It should be noted that the frequency dial of the MFJ antenna analyzer is too inaccurate for what is needed here. buy your own parts. The EU1KY antenna analyzer is an open source project to build your own, reasonably cheap but very functional antenna analyzer that is a handful tool for tuning coax-fed shortwave ham radio and CB antennas. Building Simple Antennas. If you make it obviously too long then snip bits off the In my own radio hobby, I really have enjoyed building antennas--it's generally inexpensive and really rewarding. DIY No Frills AD9850/Arduino Antenna Analyzer. “RF in” is connected to the Wifi Access Point (or other RF Generator) port. Thread In addition to an antenna analyzer its a spectrum analyzer, full 2 port vector network analyzer, power meter and So it is no surprise that hams like [jmharvey] will build an antenna analyzer from a DDS module and an Arduino instead of dropping a few hundred dollars on a commercial unit. Arduino for the Terrified – Part 1; Search for: Antenna Analyzer. • History of the 'Tenna Dipper. Some cut and trim will be required to get this antenna to work properly. Build Your Own Antenna Analyser for under $50 Beric Dunn K6BEZ Build Your Own Cheap Antenna Analyser. 217. In this article I will deal with the theory and the building blocks that one can put in place to construct a precision SWR meter. Who am I? • What is antenna tuning? • What is antenna analysis? • The minimalist approach. 2014 · 219 Responses to Antenna Analyser Project I did upload the modified version of your processing code on the yahoo group for K6BEZ antenna analyzer under VU2SPF folder with your original notice, and without adding my info anywhere in the sketch. 18:02. Zero. ) I've build several cantennas for 2. com/site/k6bezprojects/antenna-analyserAn HF Antenna Analyser for under $50. You don’t need to spend $4K+ to run your own audio analyzer like Smaart, SATlive, SysTune, or RiTA. net/?page_id=1072I find in the internet a very interesting Project. This project is obtainable from the South Coast Amateur Radio Club inBuild your own 2M antenna. Reply. Posted on Monday, July 14, 2014 3 comments: Email This BlogThis! Share to Twitter Share to Facebook Share to Pinterest. How to make an antenna for a custom frequency range? [closed] Ask Question Your best bet is to read a few books, take a class, then if you are still interested, get access to a network analyzer and spectrum analyzer and try out some designs in a Faraday cage. Ham Radio - Build your own L network antenna tuner. Build your own Bug How many watts can a J-Pole antenna handle. 4GHz spectrum analyzer on a USB stick. I will post updates and pictures as I progress with the build. Build your own Flarm Antenna. Since the variable attenuator has a loss factor, we created an attenuator similar to the filter