WiSpy 24x Spectrum Analyzer

first_img Citation: Wi-Spy 2.4x Spectrum Analyzer (2008, September 2) retrieved 18 August 2019 from https://phys.org/news/2008-09-wi-spy-24x-spectrum.html Explore further Wi-Spy 2.4x Spectrum Analyzer This all new version has both its hardware and software upgraded. The Wi-Spy is the world’s smallest 2.4 GHz spectrum analyzer that helps troubleshoot and analyze Wi-Fi networks for interference. A unique experiment to explore black holes The Wi-Spy 2.4 GHz spectrum analyzer is a valuable tool that can be used in setting up a Wi-Fi wireless network in a congested office building or even in your home-office. It’s also a valuable tool in helping isolate and identify sources of interference.The Wi-Spy is about the size of a USB memory stick with an antenna at the end. There is also software component that gets installed on your laptop that displays all the graphs that help you isolate and identify the sources of interference. The software consists of Chanalyzer 3.0 analysis utility that can be installed on a Windows base machine. You can find third party software, on the web, for a Mac and Linux OS.The Chanalyzer 3.0 program provides you with three different views of your data. You have a spectral, planar, and topographic view, all of which can be resized or hidden on your display. Each view provides you with important data that will help you analyze your signal or interference sources.Chanalyzer’s planar view displays the current Wi-Fi signals across each frequency against a backdrop of the maximum and average signal levels. The spectral view shows you the same information plotted historically over time. Both of these views will give you an idea of which channels are the busiest and which ones have little activity. The topographic view is the one that will help you identify a source of interference by displaying signatures of the sources. Interfering sources can be from a W-Fi network, baby monitor, microwave, cordless phone, wireless USB devices and so forth. The Chanalyzer’s Signature Sidebar can help you identify these sources of interference.The Chanalyzer provides other helpful visual aids that can assist you in identifying sources of interference. There is even an inspector tool that will display data about any point on a graph just by moving your mouse over it.The Chanalyzer automatically collects and stores all data that is picked up by the Wi-Spy 2.4x device. You will also find an adjustable timeline that lets you view recorded data and center in on a narrow period of time. All data can be saved for future reference and you can even enter in your own notes. The Wi-Spy 2.4x is sold by MetaGeek for $399 and is a valuable tool for Wi-Fi installations and troubleshooting. MetaGeek also offers a library, on its website, of recordings created by other companies that can help you identify sources of interference. via: Thinkgeek and Practically Networked This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only.last_img read more

Windows 7 Virtual XP Mode

first_img This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Microsoft made it clear about XPM’s purpose. “Windows XP Mode is specifically designed to help small businesses move to Windows 7,” Scott Woodgate, the director of Windows enterprise and virtualization strategy, said in a blog entry last Friday. Michael Cherry, an analyst with Directions on Microsoft stated; “I think that this will help the uptake for Windows 7, because it removes one more ‘gotcha, and that’s never a bad thing to do.” Microsoft sees XPM mode more as a safety net for users concerned about abandoning XP who don’t have access to the centrally-managed MED-V (Microsoft Enterprise Desktop Virtualization).Microsoft sees this has a smart and necessary move after the welcome users gave to Windows Vista. Microsoft feels that this will give business additional time to gear up to Windows 7 while still being able to run their old applications in XPM mode.Michael Silver, an analyst with Gartner Inc., sees some big draw backs to this temporary compatibility fix. “You’ll have to support two versions of Windows,” he said. “Each needs to be secured, anti virus , firewalled and patched. Businesses don’t want to support two instances of Windows on each machine. If a company has 10,000 PCs, that’s 20,000 instances of Windows.”Another big problem Silver foresees with XPM is that business may neglect the real problem of trying to make sure their applications are compatible with Windows 7. Silver went on to say: “This is a great Band-Aid, but companies need to heal their applications. They’ll be doing themselves a disservice if, because of XPM, they’re not making sure that all their applications support Windows 7.”Microsoft is extending the lifespan of Windows XP by offering it as a Windows 7 add-on, however there is no budget for support. Microsoft discontinued support for Windows XP two weeks ago and is only offering “extended” support through mid-April 2014.XPM will give some companies a false sense of security. What will happen in mid-April 2014 when XP isn’t supported anymore? Companies would be better off if they make all their applications run on Windows 7. Microsoft will be shipping a beta of XPM soon, but has not given a specific date to its availability. Windows 7 Release Candidate (RC) will be available to users of its MSDN and TechNet services on Thursday, and to the public on May 5.© PhysOrg.com Explore further What’s The Microsoft Windows XP Service Pack 3 All Aboutcenter_img Citation: Windows 7 Virtual XP Mode (2009, April 28) retrieved 18 August 2019 from https://phys.org/news/2009-04-windows-virtual-xp-mode.html (PhysOrg.com) — Microsoft has decided to give Windows 7 users a tool that will allow them to run Windows XP applications in a virtual machine. The tool is free with Windows 7 but will only be available to users of Windows 7 Professional, Ultimate and Enterprise Editions.last_img read more

Laserbased camera can see around corners

first_img Tool to visualize bloodstains created by chemistry researchers This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. (PhysOrg.com) — Researchers from MIT have developed a camera that can capture images of a scene that is not in its direct line of sight. The camera is equipped with a femtosecond laser, which fires extremely short bursts of light that can reflect off one object (such as a door or mirror) and then a second object before reflecting back to the first object and being captured by the camera. Algorithms can then use this information to reconstruct the hidden scene. © 2010 PhysOrg.com More information: “Femtosecond Transient Imaging” by Ahmed Kirmani The laser-based camera system is being designed by MIT Professor Ramesh Raskar and others. They call the system a “femtosecond transient imaging system,” and explain that it exploits the fact that it is possible to capture light at extremely short time scales, about one quadrillionth of a second. By continuously gathering light and computing the time and distance that each pixel has traveled, the camera creates a “3D time-image” of the scene.”It’s like having x-ray vision without the x-rays,” Raskar said. “We’re going around the problem rather than going through it.”The researchers are still in the early stages of development and are working on accurately mapping more complex scenes. They predict that the system could have a variety of applications. For instance, it could be used for search and rescue missions to search for survivors in a collapsed building or a building on fire. It could also be used for avoiding car collisions at blind corners, for machine vision, and for inspecting industrial objects with hidden surfaces. It could have similar biomedical imaging applications by allowing doctors to use endoscopes to view areas inside the body that are normally hidden. The researchers noted that a portable imaging system in the form of an endoscope could be ready in the next two years. Explore further The left illustration shows how short light pulses are reflected off a door and scatter in different directions. Some of the light is reflected back to the camera, while some of it is reflected off a hidden object or person in the room. Some of this light is then reflected back to the door, where it can be captured by the camera and used to create an image of the hidden object or person. The right illustration shows the system being used for search and rescue in a burning building. Image credits: Ahmed Kirmani, MIT. Citation: Laser-based camera can see around corners (2010, November 17) retrieved 18 August 2019 from https://phys.org/news/2010-11-laser-based-camera-corners.htmllast_img read more

Designer creates solar powered oven to cheaply freshen salt water

first_img © 2012 Phys.org Diamanti says he came up with the idea for the Eliodomestico while visiting friends working for non-governmental agencies (NGOs) in third world countries, trying to help those in need. What he heard was that there was a great need for fresh drinking water. What he saw was that one resource they all seemed to have in common was lots of sunshine, which of course got him thinking about using solar energy to distill water. Boiling salt water to create steam that collects on a surface and then drips off as fresh water isn’t new, it’s a technique that’s been around for thousands of years. What’s new here is the idea of using the sun and no moving parts to boil the water using materials available almost anywhere.Using those simple constraints Diamanti came up with a design that he believes should work. It’s made of clay and pottery along with simple metals that can be easily welded. It works he says, like an upside down coffee maker. It has two parts, an upper boiler and a lower oven. Saltwater is poured into the boiler through a hole in the top that has a screw-on cap. As the sun heats the water to boiling, the pressure forces the steam through a metal tube that reaches down into the oven below where it collects on the top of the oven and then slowly drips down into a collector basin at the bottom, which is not only easily removable but is flat bottomed, allowing for carrying atop the head, a common method of transport in many third world countries.The whole concept is open-source which means anyone, anywhere that wishes to make one of his ovens is free to do so without having to pay for licensing. They’re also free to modify the design to suit local needs as well. Diamanti is hoping that NGOs throughout the world can set up micro-loan projects to get the ovens built which can then be sold at very low prices to those in the local area. One oven is enough, he notes, to serve a family of four for a day. Explore further More information: This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. Copenhagen tap water safe again after E.coli scare: city Citation: Designer creates solar powered oven to cheaply freshen salt water (2012, September 7) retrieved 18 August 2019 from https://phys.org/news/2012-09-solar-powered-oven-cheaply-freshen.html (Phys.org)—Designer Gabriele Diamanti has created a solar oven he calls the Eliodomestico (household-sun); its purpose is to boil saltwater to produce clean drinking water for people in places where such water is difficult or impossible to obtain. What’s unique about the Eliodomestico is that it’s been designed in such a way as to be easily built by local people, rather than elsewhere and shipped in. This way, the profits from making and selling the oven remain local. via humansinventlast_img read more

Of fun and flavours

first_imgThe dawn of Easter Sunday with its message of new life is a high point in the Christian calendar. Easter is meant to be a symbol of hope, renewal and new life. Enjoy an Easter themed indulgent Sunday Brunch painstakingly curated by the team of chefs at Shangri-la’s contemporary new all day dining restaurant, Tamra. Celebrate this season of new beginnings with Tamra’s Easter Sunday brunch on April 5. Blending tradition with world flavours in the magical setting of Tamra, the young patrons will find an array of fun activities specially designed with Easter goodies and a complimentary access to the pool.The Easter goodies are available at UNO2GO, the hotel’s patisserie from March 27 – April 5.The Easter Sunday brunch is priced at Rs 3,500 plus taxes with free flowing Moet Chandon champagne and Rs. 2,750 plus taxes with free flowing cocktails, beer and mocktails. Kids buffet is priced at Rs 1,500 plus taxes.last_img read more

Inform Bagan drub Salgaocar

first_imgSony Norde and Katsumi Yusa struck one each as Mohun Bagan downed Salgaocar 3-1 in an action-packed second-half to maintain their stronghold atop the table in the I-League football tournament at Vidyasagar Krirangan on Friday.The second-half saw all the four goals as Denson Devadas gave Mohun Bagan the lead (51st) but within a minute the Goans brought the game on an even keel after Augustin Fernandes smashed in from close range from a freekick.The city heavyweights, however, grabbed the lead in the 70th minute when Katsumi Yusa from a Norde corner as the Japanese snatched a loose ball from the rebound off Salgaocar goalkeeper Subrata Paul. Norde then gave Mohun Bagan a commanding lead in the 85th minute when the Haitian recruit cut in from the left leaving two defenders for dead and fired in from just outside the box. The win enabled Mohun Bagan (24 pts) establish a four-point lead over defending champions Bengaluru FC with one match in hand.last_img read more

Govt unable to protect environment SC judge

first_imgIt is the government’s duty to protect the environment but they are unable to do so and instead they accuse the judiciary of encroaching upon its territory, Supreme Court judge Justice Vikramajit Sen on Tuesday said.“It is government which is supposed to protect the environment but increasingly, we find, for various reasons, that the government is unable to do this task. But that is primarily because politics is the main chase. You need an electorate to give votes. It is expensive exercise and therefore you have to increasingly depend on big businesses which exploit environment,” Justice Sen said. Also Read – Need to understand why law graduate’s natural choice is not legal profession: CJISpeaking at the release of Jindal Global Law Review’s special issue on Environmental Law, the judge said no government is interested in environment and is on the lowest priority list and taken as an obstacle to industrialisation.“Increasingly, we hear from the government and bureaucracy that we are going into areas which is not expected of judiciary. What does the judiciary do A and B have a dispute and we are expected to decide. But what about the constitutional vision. Are we supposed to look the other way when we see degradation at such a large-scale? Or is it our duty, as a member of higher judiciary, to take note of it,” he said.“Governments think that we are encroaching on their territory but the reality is that we are doing very little to protect the environment. Any judge who is mindful will put environment on his priority list,” Justice Sen said.last_img read more

DRI seizes 10 kg of smuggled gold in Bengal 2 held

first_imgKolkata: The Directorate of Revenue Intelligence (DRI) has seized ten kgs of smuggled gold worth Rs 3.18 crore from West Bengal’s Jalpaiguri district, a DRI release said on Sunday. Acting on a tip-off, the officials intercepted a car at Fulbari in Siliguri area on Saturday and arrested two persons with the smuggled gold. “The officials recovered ten foreign origin gold bars, each weighing one kilogram, from a car near Siliguri’s Fulbari. The car was on its way from Bhutan to Bihar’s Muzaffarpur. Two persons travelling in the car have been arrested,” the release said. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killed Upon interrogation it was revealed that the gold bars were brought to India from Bhutan through the Jaigaon-Phuentsholing border. “The gold bars were originally handed over to the accused persons at a hotel situated in Bhutan’s Phuentsholing and were supposed to be delivered to the buyer in India,” DRI said. The DRI has seized over 152 kg of gold valued at close to Rs 50 crore in West Bengal and northeastern states in 2017-18.last_img read more

Cyber Incidents Response Team to bolster Navy now

first_imgIndian Navy has followed the Army in creating Cyber Incidents Response Team (CIRT) under a rear admiral to keep in check malicious attacks of the kind the US military agencies are facing from Chinese cyber warriors. A navy source says: “We have a fairly robust system in place. The CIRT keeps a running check on our systems for possible breaches.”Army was the first amongst the Indian armed forces to set up the army cyber group in 2005 for indulging in active defense and limited offensive operations. The system was built by a retired signals office commanding-in-chief Lieutenant General Devinder Kumar, who is extremely reticent about talking about the set-up, which is his creation. Navy’s is of lesser vintage. Also Read – Need to understand why law graduate’s natural choice is not legal profession: CJIThe navy’s staffing of the cyber security arm is through its intake of software engineers trained in premier educational institutions of the country. The CIRT interfaces with the civilian agencies like the Computer Emergency Response Team – India (CERT-IN) in case the situation demands such intervention.Otherwise, the CIRT does regular audit of the navy’s computer systems. In fact, as a navy source says: “The computers on which sensitive matters are handled are not connected to the internet; do not have slots for pen drives, computer discs or any other external device.” Cyber directorate of the navy has stipulated, a computer is placed in a public space for the contingency of any of the staffers having to access the internet.  Also Read – Health remains key challenge in India’s development: KovindThe person/s who need to use that computer have to seek a clearance from the rear admiral, who is also the assistant chief of naval staff for foreign cooperation and intelligence. Considering that the navy also has a larger dimension of communicating with its vessels at sea, a source says: “We have our security overlays when communicating with ships at sea. These days we have satellite communication.” Navy has its own dedicated satellite, Rukmini, that send out communications to the ships in encrypted form.last_img read more

Govt to preserve rain water to boost pisciculture in droughtprone areas

first_imgKolkata: Bengal government is taking initiatives to increase fish production in the drought prone areas of the state by preserving rain water. This will assist the local fishermen to increase the production of fishes.In a bid to boost pisciculture, the state fisheries department will set up more watersheds in the drought prone districts like Bankura, Purulia, Birbhum, West Midnapore and some other districts, where considerable amount of rain water is wasted. Also Read – Speeding Jaguar crashes into Merc, 2 B’deshi bystanders killedAccording to the experts, if rain water is harnessed by small dams, it can be used for pisciculture, cultivation and also domestic purposes during the lean season. The department is taking up comprehensive development schemes to enhance fishery infrastructure in the drought prone areas to improve the overall socio-economic condition of fishermen in the region. A watershed is defined as the land that contributes water to a given site. It is a line that connects all the highest points in the area. A watershed provides a natural environmental unit for planning a developmental initiative. The watershed mapping in the districts of Purulia and Bankura has been done to delineate watershed boundaries and suggest the suitable sites for check dams for water harvesting. A digital map of water bodies was already created by the Fisheries department. Also Read – Naihati: 10 councillors return to TMC from BJPThe GIS based map of water bodies will help in managing e-governance in the fishery sector. Web based availability of GIS maps will improve decision making process in a decentralised set up, thereby creating a scenario of efficient management.Moreover, water stored in check dams also helps in reaching the ground water through bottom percolation in the subsurface. Watershed development thus plays an important role in uplifting the rural economy, increasing fish production, agricultural production, afforestation, water, soil and land management in the drought prone areas. Co-operative farming is also given paramount importance to strengthen co-operative fish farming. The schemes will engage unemployed rural youth that will uplift the rural economy. The department has chalked out a detailed plan to make West Bengal self sufficient in fish production and to increase export.The state fisheries department is also keen on the implementation of the People Participatory Programme (PPP) method for the sustainable development of fisheries. The purpose of PPP is to develop an operational method to increase participation of local fishermen in fish production, storage and distribution.This will also prove handy for the fisher folk to organise self-help groups and co-operatives which in turn will increase their income. They will be given access to the existing fishing ponds and fishery infrastructure.last_img read more