Wireless Security Camera and System Basics

Wireless security cameras are used in closed-circuit television systems (CCTV) for surveillance and monitoring. They transmit a video and audio signal to a remote receiver using radio frequencies. Most of these cameras do require wired power, although some models may use batteries or even solar power.

Analog wireless security cameras

Analog wireless cameras transmit their signal in the lower, radio frequencies of 900MHz, 2.4GHz and 5.8 GHz. Note that most of them operate over the 2.4 GHz band, the same band that a lot of household wireless appliances, such as cordless phones and video game controllers, operate on. Interference may result when using in the home.

The advantages of analog wireless security systems is they are lower cost than their digital brethren, and you can use multiple receivers.

The disadvantages are they may cause interference with other devices in the home. The transmission is not secure. the video signal quality is lower than digital, and any interference makes it worse.

900 MHz systems can be used in installations where the signal must go through drywall or even trees to reach the receiver. There is also not a lot of interference with other devices. Unfortunately there are only two channels available at 900 MHz.

2.4 GHz systems are more common, and there are 12 channels available, however, it is rare that you can find a channel that is not already in use by another wireless device.

5.8 GHz setups have a better chance of success, since there is less interference and there are 8 channels available (so you can have up to 8 cameras). The biggest challenge is the signal cannot go through many walls without lots of degradation.

Transmission Power

Lower cost 5.8 GHz systems most likely have a 10 milliwatt transmitter, which ideally can transmit to 300 feet with line of sight between the transmitter antenna and the receiver antenna. This rarely happens. This is a broad generalization and conditions such as distance, weather and clear line of sight affect this greatly.

When selecting an analog wireless security camera system, make sure you find out the transmission power and determine whether this will be enough to overcome any obstacles in your system.

Digital Wireless Security Cameras

Digital security cameras transmit digital information over high bandwidth radio frequencies.

The major disadvantage is the cost of the system. This maybe offset by the many advantages.

Advantages of a digital system are as follows:
Long range transmission of signal with no degradation – can go 450 feet with line of sight between camera and receiver
Very high quality audio and video signals
Can have two-way communication between camera and operator
High security of the signal.

Wireless IP Security Cameras

Wireless IP cameras are now available that can connect through a local area network over IEEE 802.11b/g WiFi systems. These include 2-way audio feeds, encryption, pan, tilt control and automatic night vision. These types of cameras have replaced the older digital wireless cameras, due to prevalence of Wi-Fi networks.

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Wireless Security Camera: A Smart Ally

With the high success rate of wireless security cameras in preventing crimes, do not be surprised if these babies of technology will be here for a long time. In fact, as you read this, it’s highly possible new security camera models are being installed in at least 50 business establishments and 15 offices around the country. It’s just as possible that in the time it takes you to learn how to operate your new wireless security camera, a better and more advanced model is being made.

Wireless security camera technology typically involves a battery-operated camera. It does not store recorded images in its internal memory. What it does, instead, is transmit signals to a receiving device that may be located as far as up to 500 meters away. Remote monitoring can then be done by hooking up the receiver to a television. At present, there is a wide choice of models available for wireless security cameras. So, you have an option between a battery-operated and an AC-powered one.

Your Friendly Neighborhood Wireless Security Camera
Wireless security cameras have gained popularity in home use as a means for monitoring caregivers. These cameras, also known as nanny cams, are placed in discreet locations around the house. They record the interaction between the caregiver and the child, usually without the caregiver’s knowledge. The purpose of the recording is to catch any signs of maltreatment in the part the nanny, especially while the child’s parents are away from the home.

Wireless security cameras installed in stores, public places, and crime-prone neighborhoods have been very effective in identifying robbers, catching speeding drivers, and significantly reducing the rate of crime in certain areas.

Wireless Security Camera of the Future
Software developers are now hard at work to come up with security models that are more than just passive recorders of goings-on in their line of focus. These developers promise a newly evolved security camera that can actually stop crimes before they occur.

The wireless security camera of the future will be able to:

1. Identify faces.
A wireless security camera can quickly match key points in a person’s face and compare it with the information in a database of recorded mug shots or photographs of individuals associated with criminal activities. This is very useful in screening people entering a country.

2. Detect concealed weapon under an individual’s cloak or clothing.
The premise for this technology is that people who are concealing some form of firearms will walk differently compared to people who are unencumbered.

3. Estimate an individual’s height and weight.
Again, this is a feature that will come in handy in case a person may be hiding firearms or a bomb beneath his or her clothing.

4. Detect unattended packages or luggage.
Most bombs are disguised as luggage. It is known modus operandi for terrorists to leave suitcases or other similar luggage in busy public transport terminals. A type of wireless security camera is now being developed to identify such unattended packages in any public area. These wireless security cameras will be designed to alert authorities who can then secure the area.

No Compromises to Safety
Although there is still much controversy surrounding the ethics of surveillance systems, the scales are still tipped in favor of putting civilians’ safety first. Some states in the United States reached a compromise with critics of wireless security cameras by decreeing that surveillance systems installed in public areas should be prominently displayed and visible to all passersby.

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Cheap Wireless Security Cameras For Your Home

Do you know what happens when you are not looking? It is hard to know who you can trust with the things that matter to you. Having cheap wireless security cameras would present a great advantage.

Almost everywhere you go, you will find some form of surveillance camera collecting video footage that is being watched by security officials. Wireless security camera use was first employed to increase security in banks. It has developed over the years to become inexpensive and is now widely used everywhere. The use of security cameras in public places, such as casinos, airports, and department stores, has increased exponentially over a short period of time. Your residential surveillance system is a personal matter and must be decided by you in terms of judging the security risk your family, personal property and any pets on the premises are in as the statistics show besides of course, your budget. It’s great to know that there’s an option for cheap wireless security cameras available even online.

Some may not feel the need to have a wireless security system in their homes until they learn the hard way. But those who are aware of its benefits oftentimes find it very expensive, which should not be the case. Keeping your home safe is easier with cheap wireless security cameras. Wireless systems are way economical. You don’t need to send thousands of dollars for a good security system. There’s even a wide variety of models to choose from.

It usually has specially designed options that will suit your purpose. You can have a DVR hidden camera in usual home fixtures. Items like clocks, fan and desk lamps blend well with their environment. They are fully functional, too. This way you can monitor your kids, nanny and general safety of your home even when you’re away.

Another factor to consider in wired home surveillance camera system would be the laying down of wires. Wiring should not only be connected properly, rightfully and appropriately to their points of connections but also securely. For wired home security alarms, wires should be concealed or undetectable as possible to avoid transgressions against them that may partially or totally disable the whole burglar alarm system itself. Outdoor security camera wiring should also be protected from the elements: the weather, animals, human, even from plants or trees. Some may be able to know how to connect the wiring but most would have a hard time in the laying down properly these wires themselves. The best security systems are not only limited to the equipments used but they definitely include the proper wiring themselves. Cheap wireless security cameras make things simpler in setting up your security system. Wireless security cameras can just be set up anywhere, especially if such home surveillance camera systems are equipped with their own recorders.

It also doesn’t need to be attached to a computer to function. Even cheap wireless security cameras come with SD card, card reader and power supply. That’s all you need for your video surveillance at home. Forget about studying the blueprints of your house to know where it’s safe to drill and there’s no need to call your handyman. No heavy lifting, no complicated instructions and no wires will burden you.

It is reasonable to be worried that an SD card might not be enough to record everything. Well, you don’t need to record everything. It’s plain waste of time and resources to watch hours of blank information. A very useful feature in hidden cameras is the motion-activated recording. There’s no need to waste your time fast forwarding uneventful recordings. Cheap wireless security cameras also have a “motion detection area masking” where you can configure accordingly. This feature can be used in cases like, if you have a pet in the house. You can deactivate detection on the lower quarter of the area covered to avoid recording each time your dog passes by.

A typical home surveillance system will cost you thousands of dollars. Many would not advise acquiring cheap wireless security cameras with the notion that only the expensive ones are good. But now that is not necessarily true, in fact you can get more value from cheap wireless security cameras. But you should verify the reputation of the seller before you buy. You can rely on the testimonials and reviews of previous clients. A good indicator of reputable and reliable vendor is when they have a no risk, money back guarantee. This means that they ensure the quality of the product you’ll be buying from them. It is very important that you get your money’s worth and for the product to serve its purpose.

Cheap wireless security cameras are just right for you instead of the wired ones because they can easily, readily, and be more quickly installed by yourself while with the wired home security camera systems, you need a contractor most likely to have them installed and that would cost more and installation would take a longer time. And consider too that your home security alarm secrets are with your contractor too, which could translate to your home security being compromised if that contractor happens to be of ill repute.

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Different Types of Wireless Security Cameras for Home Security System

Wireless security cameras are excellent surveillance device widely used in security systems especially in home security arrangements. As per the requirement, a wireless security camera can be added to a television which aids in monitoring the video signal; alternatively, it can be attached to Digital video recording device for storing the recorded data file for viewing later.

A wireless home security camera, otherwise, is rather an easier equipment for installation in a home security arrangement regardless the complications of job and vastness of area of surveillance.

One of the popular varieties of wireless security cameras are IP security cameras which are used commonly as additional security equipment with home alarm systems. However, monitoring and maintenance cost for these systems are slightly higher than usual home security set up but the neatness of output is worth the expensive purchase.

Different options for wireless security cameras can be used in a wireless security system; for instance, small AC powered cameras, which can be monitored from remote locations for a fixed place, are quite popular type of products for home security use. An example of its customized use is that a mother can set such camera in her baby’s room to monitor it from some other room. This can be used to know the caregivers attitude as well while attending the baby in the mother’s absence. While remote viewing is possible with these security cameras, these types of small wireless security cams are widely used in double or triple storied houses. Another significant feature of these mini cameras is that these can record the happenings without letting others know.

The small discreet cameras are often called nanny cameras and these are being used as an integral part of wireless security system regardless it is installed in home or for business area. Most of these cameras are battery operated, in size they are small like a coin and these can be placed at any area in the house. Most of these cameras record the events for viewing later. These are also called spy cams.

IP security cameras are also known as internet wireless security cameras and the recordings can be viewed over the internet via a fixed IP address.  In case of these IP security cameras, the address is required to be entered in a browser window to view it from any location. Depending on the intricacy of the model, panning, zooming, and tilting view of the recording can also be viewed with these wireless surveillance product.

A few complicated models of Wireless security cameras are motion sensitive, so they can also function as wireless motion detector; these cameras remain off unless there is a motion in front of the lens. When the camera gets activated it can be configured in such way that it can send an email alert or text message for the pre-set address for prior notification of necessity of surveillance.

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Guide to Wireless Security Cameras

The use of wireless security cameras has become increasingly popular over recent years. This surge in interest is due to many reasons. Some people use wireless security cameras for their ease of installation. Other people use them because running wires is impossible or not cost effective. Whatever the reason may be, wireless security cameras are quickly becoming the preferred method of surveillance for many people.

Wireless security cameras are so popular because users can literally put them anywhere added protection is needed — and the user doesn’t have to worry about wires. The placement of a security system is very flexible and easy to install, as long as the installer does his or her homework. Wireless security cameras have a very high failure rate on initial install if precautions are not taken.

What sort of failure? Say you install the camera and give it power, but there is no signal picking up on the receiver side. Luckily, this problem can be solved with some due diligence. And when you are thinking about installing wireless security cameras (whether on your own or with some assistance), there are three frequencies that are on the market for the general public.

Choosing a Security System: 900MHz, 2.4GHz and 5.8GHz

The lower the frequency number, the more walls/objects your security system can pass through (except for concrete and metal).

900MHz wireless security cameras can be used in installs where the signal has to go through trees or dry wall in order to reach the wireless receiver. This bandwidth doesn’t have that much interference from other devices, and as a result, the signal can be relatively strong. The drawback is that right now there are only two channels available on this frequency, making its use very limited. 2.4GHz wireless security cameras are the most common on the market. So are 2.4GHz phones, wireless routers, keyboards, and mice that we all use. Basically, if you see something wireless on the market, there is a good chance it is on a 2.4GHz frequency. As a result, a lot of the wireless 2.4GHz security cameras fail. There are up to 12 channels available on 2.4GHz frequency that you can select for transmission, but the reality is that if you live in a city like New York or Los Angeles you won’t find a single channel that is not occupied by a wireless device.

To fix this issue, some manufacturers have started using 5.8GHz transmitters and receivers in their wireless security cameras. The 5.8GHz frequency is relatively clean, and subsequently, the successful wireless camera installation rate is higher. You can have up to eight analog wireless security cameras on 5.8GHz frequency. But the 5.8GHz frequency has an issue. It does not go through walls as effectively as the 900MHz or 2.4GHz frequency. This is a huge disadvantage.

So right now, we have 900MHz, where you can only have two cameras on it (not very practical), and 2.4GHz, which has almost every device known to man on it, and 5.8GHz, which is relatively clean, but fails when you try to send the signal through walls. To resolve this issue, some security camera manufacturers have started placing high power 5.8GHz transmitters and better quality antennas in their wireless cameras. As a result of this addition, 5.8GHz wireless security cameras can now send a camera signal through a wall.

If you find a 5.8GHz camera and receiver on the market for under 0, chances are it has a 10 milliwatt transmitter in it, which is the lowest power transmitter on the market. In ideal conditions with line of sight, you can stretch it to 300 feet (in theory). In reality though, that is never the case. The signal strength is reduced by interference and walls. If you are looking for a camera that can transmit video up to 500 feet away, you need a camera with at least a 100mw transmitter. For a distance greater than that, let’s say 1,000 feet to 2,000 feet, you need a system with a one watt transmitter.

These are very general numbers and can change based on the distance, weather, and availability of a clear line of sight. A good way to increase the odds of success is to put the security camera and receiver antenna as high as possible so that they have a clear line of sight. Before making any purchases however, ensure that you identify your own specific needs for a security system so that you receive the proper protection for your home or business. And if you still need a little help selecting the right system, don’t be afraid to ask the professionals!

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