The (wisp) Wireless Internet Service Provider Application
WISP is a form of internet providing by using a network running through wireless sources. Wireless Internet Service Providers began in rural areas of the United States where users were unable to access the internet via cable or DSL options.
To get a connection using WISP, connection points need to be established. First connection points will need to be placed facing towards a central point. Then a high point is required for the WISP equipment to be placed, a high point such as water or radio tower, where the connections are able ‘see’ each other and connect the wireless waves. Consumers may want to install a satellite dish or antenna on the home to create a better wireless connection between points. Telecommunications providers will pay good money to have their WISP technology placed on high property, such as light posts or high buildings.
In 1992, in the town of Laramie, Wyoming, Brett Glass of Lariat which is a non-profit rural telecommunication cooperative offered WISP to businesses. WAVElan equipment was used and they sent waves through an unlicensed 900MHz radio band. They offered for-profit service to private users in 2003.
A US Federal Communications Commission was started in 2005 to ensure that the use and distribution of 3650MHz WISP was safe and fair. In 2007 licensing and registration processes were put into place to unsure customers were receiving the service they require.
A South African telecommunications company Internet Office Parks started using WISP in the country to provide internet access to providers as the countries main telecommunications provider, Telkom, were not able to provide the service for the demand.
Security concerns were raised through Internet Office Parks service being provided and this caused them to shut down as instructed by Telkom, the South African Telco.
Where in the world do you think has the highest Wi-Fi access points, the US, UK or Europe? Well, it is the Czech Republic where there are over 879 WISP access points available for users to access in all different locations.
WISP offer services like VoIP or Voice over IP which is a Virtual Private Networking service. You will more then likely find WISP technology in rural areas where they have trouble getting access to DSL or cable internet due to being so remote. A new program with faster and bigger equipment is coming onto the market known as WiMAX, this program is hoping to also make mobile data transmission easily and more readily available for users.
This technology in the beginning was expensive, to have the equipment installed it would cost a customer up to $1000, and the monthly fees were almost $150 for usage. Today thought installation costs may not even be required and monthly usage fees are much lower, usually only around $30, and that cost comes with more speed and downloads.
So that providers of WISP can all work together and give customers fair price and service an alliance has been set up, this alliance shows WISPr protocol on the best way that providers can run their inter-operator roaming and inter-networking service.
Huawei E353 Mobile Broadband Review
In modem society, wireless product have been poured into peoples life day by day, for it creats wonderful and convenient world for people. However, How to select one that suitable for you? It is a still big problem for people who are not familiar with some wireless products such as 3g router, 3g modem? As an emerging leader of global telecommunication devices, Huawei may give you some good suggestions.
Huawei E353 Mobile Broadband –HSPA+ 3.75G USB Modem
Before we begin, lets review wireless world in modern life. With the improvement of science and technology, after 2g network, 3g, 4g have appear in views of people. How we judge their features? I recommend Huawei E353 mobile broadband. As a free update of Huawei E352 USB modem, HuaweiE353 mobile broadband is one of the newest USB modem and adapted HSPA+ network technology. Huawei E353 mobile broadband works on the 900/2100MHZ frequency band and reaches a peak of 21.6Mpbs downlink high speed. It is also called 3.75G network and very close to 4G. In addition, the Huawei E353 USB modem has a faster access time, it only take 15 second to connect the internet after your inserting it into your PC, Mac or laptop.
Huawei E353 mobile broadband has get good reputation based on its high speed and impressive features and affordable price, and it is a perfect device for individuals who dont want to lag behind when it comes to high speed and stability. If your job need you to travel all over the world, then Huawei E353 USB modem will be an ideal one for your checking emails, reading news, watching movies or surfing the web at any time, or you require to download or upload a large file at a regular basis, even you are game-lover, for HSPA+technology has a larger data throughout than current 3G, absolutely Huawei E353 mobile broadband can offer amazing performance enhancement. You know, to modern day, time and profession business have become competitive keys that you beat other opposites, I promise that it will not disappoint you.
Huawei E353 mobile broadband make users enjoy the experience of high speed, and Huawei E353 USB modem adapts driverless design is easy to use: when you insert Huawei E353 mobile broadband into one port of your PC, Mac, laptop, and the OS will recognize and start install wizard automatically. After the programs are installed, a shortcut for the dashboard will appear on your desktop. It is quite easy and very convenient,isnt it?
To sum up, do you want to experience 4G network in advance? And if you want to get speedy mobile network whenever on the move, Huawei E353 mobile broadband may be your good partner.
[Top]How To Properly Install Thhn Cable During Cold Weather
Cold weather can wreak havoc on your skin, your heating bill and the air pressure in your tires, but did you also know that it can destroy your cabling if its not handled properly? One such cable, easily susceptible to cold weather deterioration, is THHN cable.
What is THHN cable?
While the terminology of some cables is convoluted and difficult to understand, most of the names of cables are acronyms or abbreviations. The name “THHN” simply comes from “Thermoplastic, High-Heat Resistance, Nylon-Coated.” THHN cable is classified under Hook-up Wire and is a very popular cable, typically used as general building wire. “General” simply means that it has several different applications, all falling under the building industry. Like all general use cables, there is no one “correct” application for THHN cable. However, it is very important to understand any cable’s strengths and weaknesses, what environments it can and cannot be used.
THHN Cable Strengths
Knowing where the name THHN comes from helps identify the cable’s strengths. Because it is a thermoplastic material it can be heated and cooled several times to reshape it, but like any material it has high and low temperature limits that it can withstand before becoming unstable. These specific temperatures can differ between individual manufacturers.
With the “High Heat” rating in its name, that infers it can be used in high temperature applications. What specific applications depend on the actual specifications of the cable, and the operating temperature ranges must be known to determine this. “Nylon-coated” identifies a specific thermoplastic material being used. THHN also has thermoplastic PVC material as insulation, but the Nylon is used as the cable’s jacket and is exposed to the elements. Nylon is a strong material, and is so widely used that THHN cable is more cost effective than other building cables made to withstand more demanding environments.
THHN Cable Weaknesses
The very same materials that give THHN cable it’s strengths also lend weaknesses as well in the right (or should I say wrong?) environments.
Because of the Nylon coating, THHN cable can become stiff at lower temperatures. Temperatures lower than 14F can make it susceptible to cracking. Thermoplastic materials need to undergo a process called plasticizing to function at constant low temperatures, but for cables that will be installed and then never move this isn’t necessary. Proper handling will allow for the cable to withstand installation and then cold temperatures up to the lowest end of the operating temperature range.
The term “thermoplastic” is defined as a material that melts into a liquid at high temperatures and freezes at lower temperatures. The colder it gets, the more it freezes, until the slightest agitation will cause fracture. Bending the cable causes one side of the jacket to compress and the other to expand, which is just the type of agitation needed to cause cracking.
Proper Installation of THHN Cable
To make sure that your THHN cable doesnt crack during installation, there are a few simple steps to follow:
Store cable indoors when the weather turns cold; a stable temperature of 65F is best.
If this is not possible, bring the cable inside at this temperature for 24 hours before installation
Never install THHN when the temperature outside is below 14F
While exposed to cold temperatures, do not drop it to the floor and protect the cable from impacts from other objects as this can crack the stiffened material.
After proper installation, THHN cable can safely operate in outside temperatures below 14F given that it remains stationary.
About Allied Wire & Cable, Supplier of Electrical Wire
Allied Wire & Cable is one of the largest privately owned value-added manufacturers and distributors of electrical wire and cable products in the United States. Family owned and operated since 1988, Allied services many of the largest industries in the country, from the government and the military to aerospace, automotive and telecommunications. Allied supplies all the wire, cable, tubing and accessory needs of these industries and more everyday. Headquartered in Collegeville, PA, Allied has offices in Florida, New Hampshire, South Carolina, Tennessee, Texas and Wisconsin, along with several warehouses across the country.
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