The transformation between the global and body coordinate frames is described below. Therefore, it is necessary to define a rotation matrix to transform variables between the coordinate systems. The state variables for velocity are in the body frame but the state variables for position are in the global frame. For more advanced navigation including waypoint trajectory following, the waypoints are given in the global coordinate system. GPS, for example, measures the quadrotor’s position and ground speed in the global frame while accelerometers and rate gyros produce measurements in the body frame. It is important to note that different common sensors produce measurements in both coordinate systems. The position of the quadrotor is given in the global frame while the velocity and angular velocity are defined in the quadrotor body frame. This notation uses notation taken from the aeronautics literature, specifically the North, East, Down (NED) coordinate system. The complete list of state variables is shown below. Surrounding fluid velocities (wind) are negligible.The Earth is flat and non-rotating (difference of gravity by altitude or the spin of the earth is negligible).The propellers are considered to be rigid and therefore blade flapping is negligible (deformation of propeller blades due to high velocities and flexible material).The thrust and drag of each motor is proportional to the square of the motor velocity.The quadrotor structure is rigid and symmetrical with a center of mass aligned with the center of the body frame of the vehicle.This model relies on several assumptions: The basic quadrotor structure used for the model development is shown in the figure above depicting the Euler angles of roll, pitch, and yaw, a body coordinate frame. As will be shown below, the rotational and translational dynamics are coupled which presents an interesting control problem. While the quadrotor can move in 6 degrees of freedom (3 translational and 3 rotational), there are only 4 inputs that can be controlled (the speeds of the 4 motors). The quadrotor is classified as an under-actuated system. The simple design results in small platforms which are battery operated, able to perform a stable hover, and safe to use in indoor environments. To move in the lateral directions, the relative speeds of each motor in the lateral pair are varied to create a desired lateral thrust offset. Altitude is controlled by varying the thrust from each motor by equal amounts to provide a net thrust vector and without a rotational moment. Yaw is controlled by varying the speeds of the pairs of motors to create a non-zero net counter torque. The elimination of the rotating moment allows the vehicle to maintain a constant heading while hovering. This design results in the reaction torques from the pairs of motors being exactly opposed by each other if they are all spinning at the same speed. The motors are arranged in pairs along the horizontal and vertical axes with the forward pair rotating clockwise and the horizontal pair rotating counter-clockwise. Each rotor consists of a brushless DC motor and rotor with a fixed pitch. The quadrotor vehicle operates on the concept of variable torques and thrusts. Variable and Coordinate System Definition The goal is to make a model that is simple while still being as realistic as possible. Once all the components of the equations are developed, it is possible to simplify the equations of motion after making several assumptions about the method which the quadrotor will be operated. The quadrotor is defined by a set of non-linear equations which make accurate simulation as well as control difficult. ![]() In order to develop accurate control systems for the quadrotor platform, it is necessary to develop and analyze the equations of motion that define the quadrotor system. System Modeling ■ Model Verification ■ Controller Design ■ Simulation EnvironmentĪutopilot Implementation ■ System Set-up ■ Experiments
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![]() We offer advice on making more space on your Mac here: If you have a 128GB Mac this can be a particularly challenging situation. So that’s more than 45GB free space required before you even start. We actually needed 35GB available when it came to doing the installation. You’ll see below that even 20GB space wasn’t sufficient when it came to installing macOS Big Sur. If you try to install without adequate space available your Mac may struggle with the installation – in fact macOS updates in the past few years have weighed in at just over 12GB, so you’ll need all the space you can get! We always recommend that you don’t attempt to install an update to macOS if you have less than 20GB of space free. We’ll run through the various problems you might encounter, the error messages you might see, and the best fixes below.Īnother reason you may not be able to download a macOS update is that you don’t have enough free space on your Mac. There are also a few possible reasons why download might be taking too long. ![]() There are a few reasons why the macOS download or installation process might not work or be interrupted. MacOS Sonoma download errors: problems and fixes Has your Mac really frozen? Before you conclude that your Mac has frozen during the installation, you need to be aware that Updating MacOS can take a !.Read How to update macOS on a Mac for more advice on installing the latest version of the Mac operating system.Another reason why your Mac might not download or install the new update is if it isn’t healthy, so if you are encountering issues you might also want to run through our advice here: How to get your Mac ready for macOS Ventura.Can your Mac run Sonoma? It’s possible that macOS is not able to be installed on your Mac because your Mac is too old: see which Macs can run Sonoma. ![]() Before you start reading through the below looking for your particular scenario, a few quick checks. It is serving 18 countries and 744 locations. ![]() XPO Logistics has a vast network across the globe. Xpo logistics headquarters: Five American Lane Greenwich, CT 06831 United States of America XPO Tracking Global The Logistics segment provides a range of contract logistics services, including highly engineered and customized solutions, value-added warehousing and distribution, cold chain solutions, and other inventory solutions.Ĭheck: Saia Freight Tracking XPO Logistics Customer ServiceĮmail:, ![]() The transportation segment provides freight brokerage, last mile, less-than-truckload (LTL), full truckload, and global forwarding services. XPO LTL Freight TrackingĮnter the shipment's PRO number in the search bar and press go. Enter amazon reference number to track amazon orders. To discover the range of benefits, you can get in touch with the company experts and discuss how the business goals can be actualized.A PRO number is the nine-digit number used to identify a freight bill, affixed to shipments in the form of a scan-able barcode sticker. XPO logistics provides Technology enabled solutions to meet the demands of Automotive and industrial clients. The supply chain system constitutes value added capabilities like raw material inspection, barcoding, thermo-forming and banding. XPO Logistics firm provides logistics solutions for sensitive and expensive goods like petroleum, fibres, plastics and cosmetics etc. The chemical division of XPO Logistics provides integrated services such as manufacturing, packaging, storage, shipping, careful handling of basic and specialty products.Īlso check other service provider like Unyson Logistics that offer similar kind of services. During storage and transportation, technical aspects like temperature sensitivity of items are taken into consideration. Most crucial products like foodstuff and agricultural products are shipped. Some of its special facilities are contract logistics and reverse Logistics. The firm believes in providing highly engineered solutions to meet diverse complicated client demands. Online tracking for tracking shipment clients have to enter the unique tracking number with the prefix XPO followed by unique numeric digits.The status gets displayed immediately.
![]() Unfortunately, it's out of my control to fix FAF in this Remove their contents temporarily, then reboot, to see if FAF works then. To keep using FAF, check the folders named InputManagers and Input Methods in your startup disk's Library folder and While these are not generally harmful, they are, regrettably, causing problemsįor Find Any File. Installed, such as SIMBL or Spell Catcher. If you get a crash saying Find Any File was quit unexpectedly, you may have a conflicting Input Manager or Input Method.Please update to at least 10.6.4, that should fix it. That contains the text UITools.NewPictureFromPicWithMask, then you may be running an outdated Mac OS X Snow Leopard version. If you get a window shown by FAF that mentions Internal Error (exception) and creates a text file on your desktop.If that happens, please check your Login Items (in System Preferences, Users & Groups) for any missing items (they'll have a generic icon), and remove them. Some users experience a slow start of FAF.Check the beta page and see if that version resolves the issue. The crash may already be fixed in the latest beta (prerelease) version. ![]()
![]() The culprit - a rapidly deepening storm front moving out from the Tennessee Valley over the Carolinas - will bring moisture into the D.C. region under a distinct risk for something much more significant. ![]() Monday’s forecast had called for little more than flurries a day ago, but a dramatic shift in computer models on Sunday morning has put the immediate D.C. Previous forecasts have changed dramatically ![]() Listen to WTOP online and on the radio at 103.5 FM or 107.7 FM.Matt Ritter, WTOP Multimedia Meteorologist January 2, 2022 I still believe hard freeze Monday night is important to monitor! #DCwx #MDwx #VAwx #WashingtonDC This ups the message for the impacts for the heart of the listening area. The cities of Manassas, Manassas Park, Falls Church and Alexandria and Fairfax, Arlington, Prince William, Loudoun, Fauquier and Culpeper counties in Virginia.The city of Baltimore, Prince Georges, Anne Arundel, Montgomery and Howard counties in Maryland.The following counties and cities are expected to have snow accumulations of three to seven inches: Stafford, Spotsylvania, King George in Virginia.The following counties in southern Maryland and central and northern Virginia could see snow accumulations of five to eight inches: “We are going to have to worry about a hard freeze of whatever ends up on the ground, which will be compact, wet, and slushy regardless of amounts,” Ritter said. Storm Team4 Meteorologist Matt Ritter told WTOP that poor driving conditions could extend into the Tuesday morning commute if the snow freezes overnight on Monday. The heaviest snowfall is predicted to be between 5 a.m. metro, Southern Maryland and Spotsylvania, Stafford and King George counties in Virginia.įorecasters expect heavy snow late Sunday night through Monday afternoon, with total accumulations of between three and seven inches possible in D.C. Monday for portions of Northern Virginia and from 1 a.m. The National Weather Service has issued a winter storm warning from 11 p.m. ![]() “Especially the elevated surfaces like bridges.” Current Weather Warnings “We’re going to be dealing with rates potentially on the border of 1/2 inch to an inch an hour at the peak of the storm, and with those of rates it’ll definitely cause some issues on the roadways,” said Connor Belak, a meteorologist at the National Weather Service. Sunday night, Storm Team4 meteorologists increased the predicted amount of snowfall, though the exact snow totals won’t be revealed until Monday afternoon.Ĭonor Bleak with the National Weather Service noted that these storms could create issues Monday morning travel for commuters in the District, Northern Virginia and Southern Maryland. Here is a look at the snow here at NWS Huntsville. area, some have already reported ice-mixed-rain in portions of Fairfax county, less than an hour ahead of winter storm warnings going into effect. A series of winter storm warnings and snowfall were triggered as far south as Alabama, though last-minute shifts in the forecast could lead to locally higher or lower totals. The system is expected to bring dangerous driving conditions on Monday morning commutes.Ī low-pressure system developing over Southern Appalachia is poised to bring snow from the Blue Ridge to the coastal Chesapeake Bay starting Sunday night.A tight gradient of snowfall accumulation just north of the District means small nudges in the storm system’s path could lead to big differences in accumulation.A winter storm warning is in effect across the region until 4 p.m.Forecasters predict four to six inches of snowfall by Monday afternoon with the potential for more - with the largest total snowfall impact in 3 years.A storm that is expected to be the largest since 2019. Some freezing rain has moved through Virginia and into the District as winter weather lovers await the first snowfall of the new year. Business & Finance Click to expand menu. ![]() ![]() Automatically hide tooltips if window loses focus, #2607.Avoid repetitive attempts to restart backend after connection gets lost during a Run ( #2836).On other platforms it tries to use system python3 (creates a virtual environment for Thonny and installs thonny and its dependencies there). Thonny-4.1.2.bash is a script, which downloads and installs thonny-4.1.2-x86_64.tar.gz (with Python 3.10) when run on x86_64 machines. Thonny-4.1.2.pkg contains universal2 build of Python 3.10 - this means it is suitable for both Arm (M1, M2) and Intel Macs. For Windows 7, 8 and for 32-bit Windows 10 use thonny-p圓8-4.1.2.exe which comes with 32-bit Python 3.8. (See POEditor for contributions)ĭefault Windows installer (thonny-4.1.2.exe) is 64-bit and comes with Python 3.10 - this means it is suitable only for 64-bit Windows 8.1, 10 and 11. Update German, French, Portuguese and Romanian translations.Fix cursor jumping to Shell when program waits for input and the user types opening parenthesis in the editor, #2834.Fix esptool flasher proposing wrong starting address for ESP32-S2 devices, #2920.Fix package upgrade and uninstall in portable variant ( #2902).Thonny-4.1.3.bash is a script, which downloads and installs thonny-4.1.3-x86_64.tar.gz (with Python 3.10) when run on x86_64 machines. Thonny-4.1.3.pkg contains universal2 build of Python 3.10 - this means it is suitable for both Arm (M1, M2) and Intel Macs. For Windows 7, 8 and for 32-bit Windows 10 use thonny-p圓8-4.1.3.exe which comes with 32-bit Python 3.8. Silence "bad-option-value"-s given by Pylint 3ĭefault Windows installer (thonny-4.1.3.exe) is 64-bit and comes with Python 3.10 - this means it is suitable only for 64-bit Windows 8.1, 10 and 11.Fix package installation in remote virtual environments.Add better error message for externally managed environments, #3009.Fix regression in MicroPython package installation, #2979.On other platforms it tries to use system python3 (creates a virtual environment for Thonny and installs thonny and its dependencies there) Changes since 4.1.3 Thonny-4.1.4.bash is a script, which downloads and installs thonny-4.1.4-x86_64.tar.gz (with Python 3.10) when run on x86_64 machines. Thonny-4.1.4.pkg contains universal2 build of Python 3.10 - this means it is suitable for both Arm and Intel Macs. For Windows 7, 8 and for 32-bit Windows 10 use thonny-p圓8-4.1.4.exe which comes with 32-bit Python 3.8. Please support Ukraine! □□ Installation instructions Windowsĭefault Windows installer (thonny-4.1.4.exe) is 64-bit and comes with Python 3.10 - this means it is suitable only for 64-bit Windows 8.1, 10 and 11. If you’re unsure of which datasets/models you’ll need, you can install the “popular” subset of NLTK data, on the command line type python -m nltk.downloader popular, or in the Python interpreter import nltk nltk.□□ Thonny 4 is dedicated to Ukraine fighting the Russian invasion. Test installation: Start>Python38, then type import nltkĪfter installing the NLTK package, please do install the necessary datasets/models for specific functions to work. Install Python 3.8: (avoid the 64-bit versions) These instructions assume that you do not already have Python installed on your machine. ![]() Test installation: run python then type import nltkįor older versions of Python it might be necessary to install setuptools (see ) and to install pip ( sudo easy_install pip). Install Numpy (optional): run pip install -user -U numpy Install NLTK: run pip install -user -U nltk Please go through this guide to learn how to manage your virtual environment managers before you install NLTK, Īlternatively, you can use the Anaconda distribution installer that comes “batteries included” Mac/Unix ¶ NLTK requires Python versions 3.7, 3.8, 3.9, 3.10 or 3.11.įor Windows users, it is strongly recommended that you go through this guide to install Python 3 successfully Setting up a Python Environment (Mac/Unix/Windows) ¶ ![]() She uses observations and computer models to determine the elemental abundances produced Schwarz studies interacting binary stars, specifically classical nova explosions. Associate Professor and Assistant ChairpersonĬourses Taught: Other Worlds-Other Stars, Geology of the Solar System, Intermediate Astronomy, Historyĭr. STEM fields that will focus on retention through professional development, mentoring, Start WISER - WCU Improving STEM Education Through Residency, a residency M.Ed. Million grant from the National Science Foundation Robert Noyce Track 2 Division to Roemmele and colleagues in the Secondary Education Department received a $1.5 Roemmele taught high school and middle school science for 15 years in New Jersey,ĭuring which time he was President of the New Jersey Earth Science Teachers Association.ĭr. SinceĪrriving at WCU, he has written an introductory geology textbook, and has createdĪ growing series of instructional demonstration videos and virtual reality field trips. In NSTA's Science Teacher and Science Scope, and NESTA's The Earth Scientist. Roemmele develops and collaborates on new activitiesĪnd scaffolds that promote active 3-dimensional learning and teaching and has published His research focused on introductory geology students and the topics andĪctivities initiate changes in their attitudes and conceptual understanding and develop Sciences Department at Purdue University in West Lafayette, Indiana, focusing on geoscienceĮducation. from the Earth, Atmospheric, and Planetary Middle Grades, Geosciences and the Movies and MediaĬhristopher Roemmele received his PhD. NikitinaĮngages undergraduate students in field research through course projects and internships.Ĭourses Taught: Introductory Geology, Science Methods for the Early Grades, Science Methods for the In the past she hasĬonducted research on active volcanoes of Kamchatka and Kuril Islands. She uses salt marsh sediments to reconstructĪ geological record of past hurricane strikes along the coast. Systems of the Delaware Bay and New Jersey. ![]() Nikitina studies the impact of rising sea levels and severe storms on the coastal With a group of WCU students and collaborators,ĭr. Research interests include recent sea level changes along the Atlantic coast of the Of landforms and the earth surface processes that create and change them. Nikitina’s background is in the systematic study Nikitina took students to explore the Peruvian Amazon and She also leads a studyĪbroad field course focused on the geology and environment of different places of Geology, Holocene climate change and sea level fluctuations. Nikitina's research and teaching interests are related to Geomorphology, Coastal One such system outputted short-term probabilistic forecastsįor fog dissipation at the San Francisco Airport, while a second system aided air-trafficĬontrollers in short-term decision-making during thunderstorm events.Ĭourses Taught: Geomorphology, Coastal Geomorphology, Introduction to Oceanography, Internationalĭr. work focused on constructing prototype forecast systems for Has written several research articles relating to statistical weather forecasting. Utility company, where he developed statistical algorithms, constructed short-termĮnergy products, and communicated weather forecasts with energy traders. InĢ003-2004, Joby moved to Cincinnati, OH, where he worked at Cinergy Corp., a Mid-West New York Times, and taught an introductory meteorology course at his alma mater. Joby also worked asĪ weather forecaster at Accu-Weather, a writer for the weather page presented in The Meteorologist for "Weather World", a PBS daily weather program. While studying meteorology at Penn State, Dr. Registration Board for Professional Engineers, Land Surveyors and Geologists.Ĭourses Taught: Introduction to Meteorology, Advanced Meteorology, Introduction to Our Atmosphere He is a Past President of the PennsylvaniaĬouncil of Professional Geologists and currently serves on the Pennsylvania State ![]() Geological Survey, and worked as a consultant at Helmke has taught at academic institutionsĪcross the US, worked for the U.S. Stormwater and wastewater management, drone-borne geophysics and remote sensing, andĮmergency response to natural disasters. Other areas of active research include sinkholes and subsidence, ![]() His research specialty is groundwater and contaminant transport modeling in fractured State University and a BS in Geology/Environmental Science from Antioch University. He holds a PhD in Geology and Water Resources from Iowa Helmke is a hydrogeologist with over 30 years of experience as an educator andĮnvironmental consultant. Courses Taught: Hydrogeology, Advanced Hydrogeology, Fundamentals of Soil, Geophysics,Įngineering Geology, Introduction to Geology, Geology of National Parks, and The Scienceĭr. ![]() I guess it depends on whether one is looking at the form or the appearance. Arial and Helvetica share a more consistent, even stroke width. “t”) - then Arial does appear to be more closely related to Grotesque 215 however, the one thing that does stand out is the greater variation in stroke width of Grotesque 215. In How to Spot Arial, the type designer Mark Simonson looks at the similarities between Arial and Grotesque 215 (one of Arial’s true ancestors) and when you consider the details - for example, the flat versus angled finials (e.g. I’ve read in several places that Arial is closer in appearance to Univers than Helvetica. It was first supplied with Windows 3.1 (1992) and was one of the core fonts in all subsequent versions of Windows until Vista, when to all intents and purposes, it was replaced with Calibri. Arialĭesigned in 1982 by Robin Nicholas and Patricia Saunders for Monotype (not Microsoft), it’s classified as Neo Grotesque, was originally called Sonoran San Serif, and was designed for IBM’s bitmap font laser printers. Originally it was called Neue Haas Grotesque in 1960 it was revised and renamed Helvetica (Latin for Switzerland “Swiss”). But before we get to ‘Arial versus Helvetica’, first, some introductions: Helveticaĭesigned in 1957 by Max Miedinger, Helvetica’s design is based on that of Akzidenz Grotesk (1896), and classified as a Grotesque or Transitional san serif face. Today we’re going to de-robe two popular typefaces, namely Arial and Helvetica - faces that are often confused, and often the subjects of mistaken identity. If you’ve forgotten to bring your magnifying glass, then don’t fear for the Fontometer is here (we’ll get to that in a moment). Something that can really help heighten our sensitivity to those differences is getting out our magnifying glasses and really taking a closer look. ![]() However, closer inspection reveals subtle differences and nuances that simply escape casual perusal. You might be forgiven for thinking that some fonts are clones, or identical twins. Every typeface, like every one of us, has its distinguishing features. Each one stipulates the characteristics and rules of the communication, including aspects such as how the data is structured and formatted or which character sets are used. Largely though, transmission these days is via the internet.Īs EDI has become more widely used, these varying standards and data formats have been developed. Instead, there are several variations of EDI.Īny methods of sending and receiving can be used – as agreed in advance by the two transferring partners. While EDI is referred to as a common language, in reality there is no uniform standard. ![]() Product activity data – this is information shared between partners about stock levels, sales details or other information about products.Acknowledgements and receipts – these act as recognition to the sender that a document has been received.Bills of lading – although a BoL will typically accompany a consignment – as a physical document – they can be sent electronically too.Remittance advice – this is sent from the customer to the supplier to acknowledge payment of an invoice.Invoices – this request for payment is sent from the supplier to the customer.It is sent before the shipment has been received. Advanced Shipping Notices – the ASN is sent by the supplier to the customer, advising about the date of the shipment and its contents.Purchase orders – a customer sends a PO to order materials or goods from a supplier.For supply chain businesses, these are the most typical business documents that are transmitted from system to system: Using it across the board streamlines processes, reduces or eliminates manual entry, and allows you to trade seamlessly with customers, suppliers and marketplaces – and to exchange information with financial institutions.Ī wide variety of documents can be exchanged using EDI. Combining speed, accuracy, and reliability, EDI provides both buying and selling parties with the ideal method of exchanging vital business documentation.ĮDI can be used with all the components of your supply chain technology stack: your ERP system, WMS, TMS, automation and robotics, e-commerce, third-party marketplaces, and more. Within the supply chain, EDI is an effective method for exchanging information in a standardised format with both suppliers and customers. Documents are processed entirely by each company’s computer systems, without need for manual intervention. Using EDI, businesses can communicate automatically with each other. Using a common ‘language’ – a set of standards that define a common protocol – EDI enables businesses to share information and to undertake business transactions, even if they don’t each use the same software or operating system. It is an electronic method used by two parties to exchange information. Here’s a look at how businesses can greatly reduce manual admin while reducing document delivery speeds, improving financial performance and maximising cash flow.ĮDI-compliance provides distributors with a distinct competitive advantage, placing them ahead of rivals in securing business from companies looking to decrease costs, improve accuracy and automate their processes.ĮDI stands for Electronic Data Interchange. Implementing EDI brings speed and efficiency – but must be done without compromising on compliance or security. To combat supply chain complexity and to bring together all its technological components, the electronic exchange of business documents – like purchase orders, invoices, delivery notes and advance shipping notices – delivers great leaps for companies that want to realise better digital communication with their trading partners. ![]() Spending on EDI is worth the investment to businesses as the return helps them to achieve greater profitability. Against the backdrop of the fallout of the pandemic, potential global recession and limited spending, that’s a huge growth, which reflects the value of the technology in helping companies. The market for EDI is projected to be worth US$ 49,213.1 million by 2027 – a growth rate of more than 9.5% for the 2020-2027. ![]() To differentiate themselves or to remain competitive, they are turning away from paper-based methods and embracing digital transformation via EDI. At the same time, the need to drive profitability and efficiency means they must minimise costs, maximise sales and improve productivity. Distribution businesses are challenged with increasingly complex supply chains and the need to be ever more customer centric. This is a 6 foot yagi type setup that i use in conjunction with my router to make sure I have full signal anywhere on my property. The second one is inside my house, and also for the most part stationary although its small and mobile if i would ever need to take it, that recieves the signals from all my wireless devices and keeps them linked into my home monitoring and entertainment systems. This is a dish type antenna that i made from an old Dish Network Satellite by modifying the pickup attached to the end of the arm and connecting it to a wifi antenna connector on my computer. One for my house mounted outside that stays stationary and gives me connection options to AP's all around the nighborhood. ![]() I personally have 3 homemade units that I actively use at any given time. For this reason, some people like myself often have more than one type of wifi antenna on hand. For instance, the parabolic (dish type) antennas generally get the best reception signal out of the group, but they're pretty much completely stationary because of their size, shape, and overall awkwardness if moved from their mounting position. There is no one "BEST" style of antenna since different designs and materials each have their own strengths and weaknesses in one area or another. Actually there are more than a dozen different varieties popular enough to mention here and I'll go into several of the most common types and what their uses are in this section. Some of you probably already know that there isn't just one kind of antenna out there. Most of you can probably see why this would come in very handy at times. This article is meant to be about the second type so that you can use a (sometimes portable) antenna to access far away networks, or even networks while you're in a vehicle or business and not at your normal connection spot. ![]() The difference is that one is talking about boosting your home network signal (putting antennas at both ends of the connection) and another is talking about boosting your reception ability (antenna only on the computer end of the connection NOT the router). The math, physics, and signal analysis equations that are used in one article about boosting wifi signal can be (and often is) completely and totaly different than the ones used in another article talking about the exact same subject. When talking about this subject and doing research on the technical details you are going to have to keep something in mind. I want to be clear about the scope of this article before we dive in. The first half is about the history, specifications and tools/software that is used to build the different kinds of antennas that you may find from the cheapest "Cantenna" from a pringles can to the huge parabolic dish recievers you see on buildings.įor those of you who prefer to skip to the second part which is the step by step guide to building an antenna, you can use ctl+f and search for one of the chapters to skip there automatically.Ī300 - List of helpfull websites and tools For example, I'll show you step by step how I built one for the purposes of this tutorial using nothing but pieces of random stuff I gathered from my house and garage and didn't have to spend anything at all. The techniques, parts, and tools required for this are for the most part stuff that most of you will already have handy in a drawer or stuck in a closet somewhere. ![]() In this article I'll (hopefully) be able to help some of you be able to build a homemade device that you can connect to your laptop or desktop and greatly improve your computers ability to recieve a wifi signal. |
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