Wireless technology has literally changed our lives. This up and coming method of communication has literally changed the way we live. Many of us cannot imagine a day without using a wireless device. In fact, we use them so much, that we barely recognize them as wireless anymore.

Telephone lines were originally designed to send news reports. Ever heard of getting something over the wire? Journalists still refer to their Associated Press reports as coming over the AP wire, though they most likely travel through the air like all other pieces of information. The invention of the radio demolished the idea of news sent over a wire. In fact, it completely destroyed the concept of the telegraph and eventually the landline telephone.

Computer networking works in a similar manner. Who would choose an immobile stationary system over a wireless one? Why would you choose to actually be chained to a desk when you could move freely about, accessing the internet and other files on a network from the comfort of a couch, a recliner, or a coffee shop. Additionally, while many believe that wireless costs more, this price too is going down, and soon anyone will be able to afford a wireless connection.

WiMAX, short for Worldwide Interoperability for Microwave Access, is steadily making its way unto the wireless market. Its biggest advantage lies in the distance that it spans. Instead of a wireless connection reaching a few meters, it will reach kilometers. Currently some of the strongest WiMAX network reach over 30 miles. It literally spans the length of metropolitan areas, and thus with WiMax, you’ll no longer have to search for hot spot sign. Check out wimax.weblongsinc.com for more information about this up and coming form of wireless technology.

Bluetooth has become a mysterious wireless term to non-geeks, but its quickly becoming a household word thanks to its technology in cellular phones. Bluetooth basically is a way to connect hardware. The hope is that instead of seeing a mass of cords behind your television, you’ll just have the necessary blue tooth hardware, a wireless connection that connects your DVD player to your television. Everyone hates those mass of wires, or any mass of wires that threatens to ruin the aesthetics of a room, and Bluetooth has the potential to improve the look of just about any system.

Eventually wireless technology will make life simpler. We’ll be able to do things in places that we never imagined before. After all, who would think that you could contact a person from across the globe while sitting in a cafe across town, with no cost to either of you. Grandparents in California can talk to their grandkids in Florida while soaking in the rays on the beach. I predict that not only will wireless make life simpler in the future, but that we’ll function with it so smoothly, that we won’t even notice the wireless technology.

By: Gregg Hall

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These days security is a great concern for everyone. Modern lifestyle has rendered our home and family prone to a lot of crimes like robbery, theft and abduction. There are the concerns of everyone who think about his family and valuable property and savings. To address these issues the modern technology has developed wireless alarm home security systems, these systems are a great deterrent to criminals. It is very sophisticated equipment and they are very easy to operate and install.

You do not need to dig holes and drill into the walls for wishing to install it because home systems are wireless, i.e. they don’t need the wires for communication and conduction of data.

Points To Be Pondered Upon For The Maintenance Of Wireless Alarm Home Security Systems

The most important thing to be kept in consideration for the efficient working of alarm security equipment is their proper maintenance. Their maintenance involves ensuring that the batteries of cameras are properly charged. Because, if the batteries are out of charge or have a low charge then you cannot reap all the benefits of wireless security systems. There is however, till date, no other alternative for batteries though they cause an inconvenience of changing frequently. There is a possibility that the batteries in wireless systems are regularly charged while working by providing them an electricity connection but that involves a proper wiring and hence would increase the installation problems. While the use of batteries not only decrease the problem of installation but also increase the efficiency of alarm systems. As it has been observed that whenever any robber or criminal enters in the home vicinity, he first looks at the wires to trace if any alarm home system has been installed in the house. But if you are using any wireless alarm system which does not use any wires, then you can place your camera and monitors anywhere camouflaged which the criminals would not be able to detect and would be monitored continuously by your wireless systems, thus enabling to launch any litigation against them.

How Can I Ensure That Batteries Of My Wireless Alarm Home Security Systems Are Working Properly?

You have to keep track that what is the normal time consumption of your batteries. When they are fully exhausted is not recommendable. There are some wireless alarm home security systems whose battery charge is displayed by a graphic image. This shows that how much battery remains and how much is consumed in your security system. It is better to change the batteries five days before to ensure the effective working of your security system.

By: David Faulkner

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Wireless technology has recently inundated the security industry. It can save time and money on installation, but does it offer the same level of security as a hard-wired system?

Whenever new technology is released into an industry, it is usually welcomed with skepticism. Wireless technology has recently inundated the security industry. It can save time and money on installation, but does it offer the same level of security as a hard-wired system? Here are some considerations on wireless security equipment.

Quality equipment is still important, especially with wireless devices. Do your research, and use only quality brands.

The rules are changing. You can now disarm a system with a RF key chain. Some ethical and systematic issues are now coming into play. (example: what if your key chain is lost? can you erase it as a disarming device?)

Does it monitor it’s operational status and battery life? Why have a wireless smoke detector if you don’t have confidence that it will be functional when there’s a fire?

Are there compatibility issues between the device and other parts of the system. What options does the wireless device offer to supply the level of security you require. Wireless or wired, there are going to be vulnerabilities.

Do the research to see if anyone has reviewed the equipment on a blog or in an article. If someone feels they have a bad wireless system, they will likely complain about it on the internet. You can also review the websites, and look for specification sheets.

By: Justin Evans

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Video systems are becoming a part of our everyday lives. When video surveillance systems first hit the market in the mid 80’s, they immediately made a major impact on crime prevention and the way crimes are investigated. Early video systems required a hardwired connection between the camera and the recording system. Recent innovations in wireless video transmission are changing that requirement.

Wireless video systems are popping up all over the place to satisfy a range of consumer requirements. From wireless baby monitors to high-end high-definition wireless broadcast systems, wireless video systems are available in a wide range of prices, features and functions.

Most modern, consumer grade wireless video systems will fall into one of the following frequencies; 900 MHz, 2.4 GHZ or 5.8 GHz. Almost all of the affordable consumer grade wireless cameras on the market fall into the 2.4 GHz range.

Every wireless video system consists of a camera, a transmitter, a receiver, an antenna and a power supply. Transmission ranges can vary greatly depending on the frequency, the antenna and the rated power output.

With the exception of higher end, high power broadcast quality systems; most wireless video systems do not require a license from the Federal Communication Commission (FCC) to operate. No matter what frequency you plan on using, if you are installing a high powered installation, especially near a highway or an airport, you should secure the appropriate FCC license.

For the best results and the longest range, most wireless video transmission systems require a clear line of site between the transmitter and the receiver to operate consistently. Wireless video signals do not penetrate very well through glass, walls, concrete, trees, steel or other obstructions.

In addition, other RF signals around the same frequency can cause interference or be interfered with by wireless video systems. In the 2.4 GHz range popular with most security applications, interference can be experienced between cordless phones, microwave ovens, local television broadcasts, computer monitors, power supplies or wireless LAN/WANs. Sometimes interference problems can be solved by re-locating the transmitters or receivers.

Since 90% of consumer grade wireless video systems fall into the 2.4 GHz category, we will discuss the features of both the 2.4 GHz analog and digital systems and the limitations and benefits of each.

The entire 2.4 GHZ bandwidth allocated for consumer use is from 2,412 MHz to 2,462 MHz. As per the FCC standards, there are 11 possible channels which are 22 MHz wide with a 5 MHz spacing interval between each.

In order to allow multiple cameras on the same system, residential, consumer grade 2.4 GHz analog video transmitters such as a wireless baby monitor or a front door camera require fixed frequency, non-overlapping channels to reduce interference.

These 2.4 GHz analog wireless cameras are some of the most popular video surveillance systems for consumers and end users, yet very few professional security providers will offer these wireless cameras.

At best, professional security installers consider the 2.4 GHz analog video systems as low-end residential solutions which are notoriously unreliable. The analog 2.4 GHz cameras are easily identified by their price tag which is usually in the $ 69.00 to $ 140.00 range per camera.

If you take away the benefit of their low cost, there are several inherent limitations to Analog 2.4 GHz video transmission including:

In the 2.4 GHz range, there are only 4 available non-overlapping channels. This limits these systems to a total of 4-cameras, each of which is tuned to a different pre-defined frequency. Each of these fixed frequencies is capable of transmitting about 11 mega-bits per second of data (Mbps).

Because the analog 2.4 GHz wireless video transmitters are on fixed frequencies, they are especially susceptible to interference from outside sources. A typical transmission range for an analog 2.4 GHz wireless video link is about 200 to 300 feet when installed outdoors with a clear line of site. The relative transmission distance is greatly reduced when installed indoors with some lower end analog systems typically providing about 10-30 feet.

Since these cameras are transmitted on a fixed, un-secured open frequency, the signal is easily intercepted and can be seen by anyone with a 2.4 GHz 4-channel receiver. A voyeur or a burglar could simply drive around a neighborhood with a receiver and see inside your home. If you have one of these systems installed, perhaps a burglar is watching you right now.

In 1997, the Institute of Electrical and Electronics Engineers (IEEE) created the first Wireless Local Area Network (WLAN) standard which was named 802.11. The original 802.11 utilized the 2.4 GHz frequency to allow reliable transmission of 2-Mbps of bandwidth. In 1999, the standard was upgraded to 802.11b which supports up to 11 Mega-Bits per Second (Mbps) which was comparable to traditional Ethernet connectivity speeds.

The 802.11 protocol works by sub-dividing the entire 2.4 GHz frequency into channels and switching between them during transmissions. As the signal is sent, it sends a packet of data at one frequency and then hops to the next channel and sends another packet and so on, until the entire data package is sent.

In 2003, WLAN products began supporting a new 2.4 GHz wireless standard called 802.11g which supports a bandwidth of 108 Mbps of data. The days of cost effective, reliable and secure wireless video transmission have finally arrived.

The added features and benefits of using internet protocol cameras and 802.11g for wireless video transmission in a security application are many.

The 802.11g protocol utilizes digital bi-directional signals which support the use of pan/tilt/zoom functions and presets found in many newer cameras. The digital signal used is duplex (bi-directional) as opposed to the simplex (one-way) binary signal used in analog type systems.

Because 802.11g utilizes the entire 2.4 GHz frequency spectrum, interference is greatly reduced and longer transmission ranges can be expected. If an area of the frequency is noisy then the transmitter/receivers will adapt the signal by sending smaller packets in the noisy affected area and larger packets in the non-effected areas of the frequency. A wireless IP video system will offer almost the same performance as a professional grade wired system with a reliable transmission range of 150-200 feet.

If the camera is to be located further than 200 feet, directional antennas are available which can increase the distance to 600 or more feet. If a greater distance than 600 feet is required, point to point, long range directional type systems can increase the distance to several miles.

In addition to standard 64/128-bit WEP Security, 802.11g protocol allows data packets to be encrypted using a 40-bit RCA key. When considered in conjunction with the inherent security built into DSSS spread spectrum technology, the data signals are at least as secure as data traveling over a wired network.

The 802.11g protocol can support a much larger number of wireless cameras by using a medium access control or MAC layer called CSMA/CA or Carrier Sense Multiple Access/Collision Avoidance. The collision avoidance in 802.11g supports the use of CTS/RTS signals (clear to send/ready to send) which tell each camera on the system when it is O.K. to begin transmitting or receiving data thereby avoiding interference.

Any hardwired IP Camera that is installed on your intranet or internet that is using the same CODEC (Coding & Decoding) algorithm can be integrated into the same software viewing and recording system.

An IP addressable camera system can be viewed or recorded from a properly equipped computer from any location in the world. This can allow you the freedom to move anywhere on the planet while still keeping track of your assets. In addition, if you ever decide to move your head end recording equipment to a different location, you simply pick it up and move it. No wires to re-route.

One thing to remember when deploying a multi-camera wireless IP based video system is that processing multiple streaming video signals places a substantial work load on a computers CPU.

Hard Wired systems have video capture cards which are installed in the PC/DVR. These cards take up to half of the work load off the computers CPU. Because wireless IP video systems do not have the help of these capture boards, the computers CPU must handle 100% of the processing workload.

What this means is that as you add cameras to a wireless system the total frame rate or the total images per second which can be viewed and recorded will decline due to the increased workload.

Some people shy away from IP and network security solutions because they appear to be complicated and difficult to set up. The fact is the initial set up does require some expertise and knowledge but the operation and day to day use of the systems are no different than using any other PC based security camera system. The required computer skills are minimal. If a person can check email, use a word processing program or load and play any type of game on a PC they most likely possess the skills needed to use and manage a PC based system.

By: Roy Stephenson

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Recently, Pandora Inc. announced that it has arrived at an agreement with electronics company Pioneer Corporation. Soon, drivers will be able to listen to its personalized radio service in their vehicles. Bringing us one step closer to dashboard internet radio, this development represents what could prove serious competition for satellite and traditional radio. As of March, the fears of the satellite and traditional radio industries will be confronted when Pioneer releases the navigation and entertainment device that will allow Pandora users who stream the service through Apple iPhones to access Pandora in their vehicles.

It is sure that the Pandora-Pioneer product is only the beginning of what could be a real internet radio boom. With wireless internet technology today growing and advancing faster than ever, it will not be long before online radio is available in virtually any place at any time. Advancements such as mobile broadband and WiMax promise to make in-vehicle online radio a legitimate option for drivers and passengers.

What could such a development signify in the radio world? As of yet, there are no clear answers.

It is already widely known that increasingly-popular satellite radio has posed stiff competition for traditional radio. Services such as Sirius offer ten times the options proposed by regular airwaves, from talk shows to music and more. An increasing number of celebrities have moved their shows to satellite, enjoying the increased freedom it allows them in speaking their minds and choosing show content.

Now, however, internet radio is likely to give services like Series a run for their money. While some radio shows are currently broadcast currently on satellite, should internet radio be as much of a hit as it stands to be, it won’t be long before those programs become available online as well. Satellite radio could face a migration of clients away from its services.

The challenge internet poses to traditional radio is perhaps more complex and less clear. Though both satellite and internet radio have very appealing qualities, traditional radio is, well, tradition. Beyond that, it is also convenient. While both satellite and internet require the purchase of extra equipment to install in vehicles, traditional radio is already a standard part of vehicle production. Will all drivers abandon familiar, user-friendly, local and convenient in-vehicle radio? It is doubtful. The question is, how many will?

There are also questions as to what internet radio services such as Pandora could do to new music. If personalized internet radio becomes the standard, it could become increasingly difficult for new bands and artists to be heard. A first play on top radio stations such as New York’s Z-100 could in the future be much less beneficial than it is today.

Wireless internet certainly is changing the way that we live, affecting more industries than in the past we could have ever imagined. New developments in the world of in-vehicle internet radio is just one example. The Pandora – Pioneer announcement, however, does leave us with many uncertainties and questions about radio future.

By: Jason Tandle

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Once upon a time, you could not make a call in the middle of nowhere, much less keep an eye at home when you were away. Thanks to spy movies, inventors were inspired to create wireless gadgets that brought this era to a futuristic world faster, and that includes your wireless security camera.

Going Wireless

Your wireless security camera has two faces – spy and protector. It spies on the nanny or on your teenagers and protects your home from would-be intruders. Place it outdoors for the entire world to see and people will hesitate to break into your home.

Assure your children and the nanny that you’re watching over them, even if you’re miles away and they’ll behave. Whatever your purpose in getting one of those nosey wireless security camera, you hit two birds with a stone.

Wireless spy cameras give the technology the credit it deserves. You’re “snooping” on possible snoops, but how could you expect to be an expert at the game when all the wires and cables are sticking out? A telltale wire can defeat the purpose of your surveillance.

Going wireless is not only keeping with the times. There are more advantages going wireless, such as:

* Flexibility – You can post the cameras somewhere else and hide it inside objects, clocks, paintings, or behind that NFL banner on the wall.

* Ease of installation – In just a few minutes, you can have your camera up and running.

* Accurate recording – No matter how small your wireless security camera is, it will provide better results in the accuracy department.

* Color option – Colored or black and white, both are affordable and within your budget range for a home security system.

* Greater range – Wireless cameras cover an area up to 100 feet.

Interior and Exterior Cameras

Cameras can be mounted outside of the home to give your property 24/7 surveillance. You can catch your neighbor letting his dog pooh in your yard, or throwing junk in your front or backyard – and he won’t be able to deny anything because the camera won’t lie.

Exterior cameras have hardier covering to withstand the sun, rain, and snow. You don’t have to worry if it’s scorching or freezing out there – the camera will be relentless. A little help will be useful, though. You can put a little casing or visor over your camera just to help it along, unless you want the sky above your house monitored?

Interior cameras are sensitive. These prefer a dry environment, but can adjust to temperatures inside the home. You can place it in impossible positions. It’s not possible to have wires, or you can get those tiny widgets powered by batteries for those impossible to reach places.

Wireless Technology at Home

You don’t want the snoop or the would-be thief to know that there are surveillance cameras around, especially in vulnerable areas like your children’s bedrooms, your bedroom, front door, and back door. Protruding and snaking wires give the presence of the cameras away, and worse of all, intruders can avoid the sweeping gaze of the camera when they know where it is.

Be sure however to do some research on the legal implications of using surveillance at home or in your business as the use of these devices may have some legal ramifications which you want to avoid at all cost. But still, if you’re going for home security, get a wireless security camera to start a security system at home.

By: Nahshon Roberts

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Use Modern Wireless Technology and You will Get Higher Internet Speed

Wireless internet access is one of the outcomes of modern wireless technology and you can hardly find any businesses, city without having any wireless internet access. The use of wireless internet is growing rapidly because it is flexible than wires internet connection and the variety of its uses. You can use different devices with one connection and there are only a few causes to disconnect your access. This is the best way to connect all the computers, laptops, mobile phones of your office. Wireless internet is the best to install in offices, cyber-cafes, airports, railway stations. You can even install it for home only.

Wireless internet access has a variety of connections and the Wi-Fi is the most popular of them. This is wireless system which broadly used in the coffee shop or libraries. The installation cost of Wi-Fi is lower tan other and you can easily install it with the help of a wireless router by a broadband type internet connection. Another popular wireless internet access system is G3. The network system of G3 is similar to the mobile phone network system. You can use this technology with your smart phone or laptop with the help of your mobile phone towers. You will get the extremely high speed of this wireless internet access technology. This is the technology which will provide you the advantage of being connected while you are on a move.

There is another wireless internet technology WiMAX which will provide you the similar services like the G3. This is a combination of Wi-Fi and G3. WiMAX has all the effective and useful features of both types of internet access technology. WiMAX can be accessed with a range of 30 miles like the G3 and it can be easily used at home like Wi-Fi which G3 usually does not support well. WiMAX is faster than the Wi-Fi and G3 both. The combined features of both technology and higher speed make the WiMAX technology popular and you can easily provide the speedy internet service to many people. The only lack of WiMAX is that is can’t provide frequent mobile service like the G3 because G3 licensed frequency doesn’t affected by movement but WiMAX licensed frequency does.

You can think why WiMAX didn’t have the license of the same frequency of G3, it is because people invest a lot for G3 wireless internet technology and they don’t want a competitor who has higher speed and better service than G3. This is the only cause for having the only problem of WiMAX to use it in the mobile devices. Scientists now work on the technology to make a device where both wireless mobile technologies will be applicable and you can have the opportunity to use your preferred wireless internet technology according your situation.

By: Ben C Carroll

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Wireless technology is making it so that different types of gadgets can be seamlessly integrated into a network in homes and offices, but one use for wireless networking that doesn’t get quite as much attention is the ability to built networks of devices on the human body. This isn’t cybernetics like the Borg on Star Trek or the bionic man of the old TV show, though the effect is similar. These are devices that are worn on the body rather than implanted in it. The effect of these devices is similar to the science fiction idea of cybernetic implants in the sense that they’re designed to give their users greater connectivity and or entertainment while providing hands free (or nearly hands free) operation.

Of course, the devices that do this don’t have to be wireless in nature, as with the example of MP3 players and other sources of music that can be carried on the body and listened to through headphones. MP3 players- and of course their tape and CD based precursors, along with their multimedia descendants- are capable of providing an audio sound track to go along with whatever their users are doing wherever they go. The digital music players are especially good at this because even the smaller models can store and play hundreds of songs and have playback times that can last anywhere from twelve to twenty four hours on a fully charged battery. The result is a sound track that can be listened to over the course of hours- or even days- without recharging or hearing the same song twice!

Of course some of the more advanced portable media devices also come with the capability of playing video on their color LCD screens. When this capability is combined with a pair of video goggles that are becoming increasingly common on the market, active people can watch TV and movies while walking, running, or even possibly cycling if they’re brave (or foolish) enough.

While the capabilities of individual devices can be impressive, things get really interesting when multitasking capabilities and wireless technology are thrown into the mix. One of the major types of wireless technology that you’ll find in a lot of devices is Blue Tooth wireless technology. Blue Tooth wireless technology allows for devices that can communicate with each other without the use of cords running between them. A good example of this is the ability to use a mobile phone clipped to your belt by talking and listening through an ear piece that isn’t physically connected to the phone. These earpieces are often built into other accessories like sunglasses. The compact electronics of the device are attached to the temple of the glasses and the audio is fed into the ear by a small ear bud. Some of these devices are voice activated and others allow you to do things like answer a phone call just by touching a button on the ear piece rather than the phone itself. Mobile phones with built in digital audio players are especially good for this kind of technology because they allow their users to listen to music and then pause the music while taking phone calls over the same headphones.

Gadgets like these make mobile entertainment and communication very feasible and enjoyable.

By: Julia Hall

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