Longrange WiFi is used for lowcost, unregulated pointtopoint computer network connections, as an alternative to other fixed wireless, cellular networks or. InformationWeek. com News, analysis and research for business technology professionals, plus peertopeer knowledge sharing. Engage with our community. Install Leopard On Imac G4 800 Specs here. Another nice feature on the Craft is the big dial on the top left. It can do normal stuff like adjust the volume of your computer, but it also works with Microsoft. Your safest bet is SwiftKey, which Microsoft bought early last year, and which recently caught up to the default keyboard with 3D Touch cursor control and over 100. Long range Wi Fi Wikipedia. Long range Wi Fi is used for low cost, unregulated point to point computer network connections, as an alternative to other fixed wireless, cellular networks or satellite Internet access. Wi Fi networks have a range thats limited by the transmission power, antenna type, the location theyre used in, and the environment. A typical wireless router in an indoor point to multipoint arrangement using 8. Outdoor point to point arrangements, through use of directional antennas, can be extended with many kilometers between stations. IntroductioneditSince the development of the IEEE 8. Wi Fi brand name, the technology has become markedly less expensive and achieved higher bit rates. Long range Wi Fi especially in the 2. GHz band as the shorter range higher bit rate 5. GHz bands become popular alternatives to wired LAN connections have proliferated with specialist devices. While Wi Fi hotspots are ubiquitous in urban areas, some rural areas use more powerful longer range transceivers as alternatives to cell GSM, CDMA or fixed wireless Motorola Canopy and other 9. MHz applications. The main drawbacks of 2. GHz vs. these lower frequency options are poor signal penetration 2. GHz connections are effectively limited to line of sight or soft obstacles far less range GSM or CDMA cell phones can connect reliably at 1. GSM, imposed by the parameters of time division multiple access, is set at 3. IMG_0295.jpg' alt='Microsoft Bluetooth Notebook Mouse 5000 Default Ping' title='Microsoft Bluetooth Notebook Mouse 5000 Default Ping' />Microsofts Continue on PC is Device Agnostic. The companys new Continue on PC feature is a site sharing tool for both Android and iOS devices. Wi Fi connections. Despite a lack of commercial service providers, applications for long range Wi Fi have cropped up around the world. It has also been used in experimental trials in the developing world to link communities separated by difficult geography with few or no other connectivity options. Some benefits of using long range Wi Fi for these applications include unlicensed spectrum avoiding negotiations with incumbent telecom providers, governments or others smaller, simpler, cheaper antennas 2. GHz antennas have less than half the size of comparable strength 9. MHz antennas and require less lightning protection availability of proven free software like Open. Wrt, DD WRT, Tomato that works even on old routers WRT5. G, for instance and makes modes like WDS, OLSR, etc., available to anyone, including revenue sharing models for hotspots. Nonprofit organizations operating widespread installations, such as forest services, also make extensive use of long range Wi Fi to augment or replace older communications technologies such as shortwave or microwave transceivers in licensed bands. ApplicationseditBusinesseditProvide coverage to a large office or business complex or campus. Establish point to point link between large skyscrapers or other office buildings or airports. Bring Internet to remote construction sites or research labs. Simplify networking technologies by coalescing around a small number of Internet related widely used technologies, limiting or eliminating legacy technologies such as shortwave radio so these can be dedicated to uses where they actually are needed. Bring Internet to a home if regular cableDSL cannot be hooked up at the location. Bring Internet to a vacation home or cottage on a remote mountain or on a lake. Bring Internet to a yacht or large seafaring vessel. Share a neighborhood Wi Fi network. Nonprofit and GovernmenteditConnect widespread physical guard posts, e. In tourist regions, fill in cell dead zones with Wi Fi coverage, and ensure connectivity for local tourist trade operators. Reduce costs of dedicated network infrastructure and improve security by applying modern encryption and authentication. MilitaryeditConnect critical opinion leaders, infrastructure such as schools and police stations, in a network local authorities can maintain. Build resilient infrastructure with cheaper equipment that an impoverished war torn region can afford, i. Reduce costs and simplifyprotect supply chains by using cheaper simpler equipment that draws less fuel and battery power In general these are high priorities for commercial technologies like Wi Fi especially as they are used in mobile devices. Scientific researcheditA long range seismic sensor network was used during the Andean Seismic Project in Peru. A multi hop span with a total length of 3. I have the same problem. I upgraded from Vista 64bit to Win7 Enterprise 64bit. Keys get stuck in any program, and mouse is either shaky or stops working. Y3BWuHbsKAk/hqdefault.jpg' alt='Microsoft Bluetooth Notebook Mouse 5000 Default Ping' title='Microsoft Bluetooth Notebook Mouse 5000 Default Ping' />The goal was to connect to outlying stations to UCLA in order to receive seismic data in real time. Large scale deploymentseditThe Technology and Infrastructure for Emerging Regions TIER project at University of California at Berkeley in collaboration with Intel, uses a modified Wi Fi setup to create long distance point to point links for several of its projects in the developing world. This technique, dubbed Wi Fi over Long Distance Wi. LD, is used to connect the Aravind Eye Hospital with several outlying clinics in Tamil Nadu state, India. Distances range from five to over fifteen kilometres 31. These links allow specialists at the hospital to communicate with nurses and patients at the clinics through video conferencing. If the patient needs further examination or care, a hospital appointment can then be scheduled. Another network in Ghana links the University of Ghana, Legon campus to its remote campuses at the Korle bu Medical School and the City campus a further extension will feature links up to 8. The Tegola project of the University of Edinburgh is developing new technologies to bring high speed, affordable broadband to rural areas beyond the reach of fibre. A 5 link ring connects Knoydart, the N. Loch Hourne, and a remote community at Kilbeg to backhaul from the Gaelic College on Skye. All links pass over tidal waters they range in length from 2. Increasing range in other wayseditSpecialized Wi Fi channelseditIn most standard Wi Fi routers, the three standards, a, b and g, are enough. But in long range Wi Fi, special technologies are used to get the most out of a Wi Fi connection. The 8. 02. 1. 1 2. MHz and 5 MHz OFDM modes to the 8. Some commonly available 8. OFDM half clocking and quarter clocking that is in the 2. GHz and 5. 0 GHz products are available with 1. MHz and 5 MHz channel bandwidths. It is likely that some 8. D. 2. 0 chipsets will also support half clocking for use in 1. MHz channel bandwidths, and at double the range of the 8. MIMOeditPreliminary 8. This technology can use multiple antennas to target one or more sources to increase speed. This is known as MIMO, Multiple Input Multiple Output. In tests, the speed increase was said to only occur over short distances rather than the long range needed for most point to point setups. On the other hand, using dual antennas with orthogonal polarities along with a 2x. MIMO chipset effectively enable two independent carrier signals to be sent and received along the same long distance path. Power increase or receiver sensitivity boostingedit. A rooftop 1 watt Wi Fi amp, feeding a simple vertical antenna on the left. Another way of adding range uses a power amplifier. Commonly known as range extender amplifiers these small devices usually supply around watt of power to the antenna. Such amplifiers may give more than five times the range to an existing network. Every 3 d. B gain doubles the effective output power. An antenna receiving 1 watt of power, and 6 d. B gain would have an effective power of 4 watts.