SUMMER BABY MONITORS

Learn about the software and online viewing features available in the Logitech Digital Video Security System.

go.tagjag.com – go.tagjag.com – I’ve demonstrated home security systems in the past. This time, I’ve gotten my hands on a couple of different systems from Lorex. I’ll even be giving one of these products away at the end of this video review. One of the systems allows you to “Connect. See. Hear. Protect”. You can connect the camera to any electrical outlet. It then transfers to a wireless receiver which is connected to my Slingbox software. The other allows you to record as well as watch what’s going on. So how would you like to win one of these systems? chris.pirillo.com
Video Rating: 4 / 5

Security Monitors 01 … Lorex LW2003 LIVE Snap Video Baby Monitor (White) 02 … www.amazon.com VISS7500 SVAT Hands Free Video Door Phone Intercom w/5-Inch LCD & Outdoor Night Vision Camera (color) www.amazon.com 2003 .. Levana BABYVIEW20 trouble-free Digital Wireless Video Baby Monitor with Night Light Lullaby Camera www.amazon.com 04 … Video Door Phone Intercom System (7-inch LCD Monitor and Night Vision Camera) 05 … www.amazon.com Electronics Clover TFT7001 7 “TFT-LCD Rear View System with Night Vision Color Camera – Large (Black) 06 … www.amazon.com SAMSUNG SMT-1722 17-inch LCD Monitor Security www. amazon.com 07 … Motorola MBP30 Digital Video Baby Monitor www.amazon.com 08 … Color monitor with audio www.amazon.com 2009 .. New 7 “LCD touch screen color monitor for video door phone intercom www. Amazon.com 10 … CCTV LCD 19″ High Resolution Color Monitor www.amazon.com
Video Rating: 0 / 5

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Many people possibly wonder what are the types of security cameras, and how can they tell which camera fits their specific needs, and which camera they want to install? Whether they want to have a whole system for their homes, business, or any available area of their properties or they just want to buy a signal camera. Users should be acquainted with security cameras, which are divided into genres, and they also should choose the suitable type that affords them the required and desirable results. How many rooms do you want to secure while managing the surveillance operation? Do you want to make a full-scale monitoring? What is the purpose of installing security cameras? And what is the needed quality for your scenes? To answer these questions, lets know more about these security devices, their features and uses.

Black and White security surveillance cameras are widely used in the security surveillance field. We carry all the top quality brand name equipment including B/W High Resolution SONYCCD 600lines, Appro B/W CCD, ATV, 570 with TVL, Computar ganz surveillance camera with varifocal lens, high sensitivity, Ikegamia low light high IR, KT&C normal resolution exview, super 600 TV lines mini CCD surveillance cameras, and LCL Watek, Panasonic, Pelco, and Sanyo high performance security cameras.

Infrared Security Cameras are designed for optimum security and especially increased protection at night. With Infrared Security Cameras, you can see in total darkness, and they are great cameras for extremely low or non-lighted areas. The Day Night Infrared Security surveillance equipment section contains a variety of high tech CCTV security surveillance cameras including Bullet and IR instrumentation. KT&C, VITEK, and Surveilux are only some of the brands we carry!

Dome Security Cameras are ideal for use in building entrances, stores, and shopping malls; in short, anywhere you want a ‘fashionable’ camera that is designed to blend into its surrounding environment then the Dome camera is the camera for you. Prettier and more appealing than its cousins, a Dome Camera offers high security and an increased surveillance capacity because of its non-invasive qualities. The Dome Security surveillance Cameras are a great way to achieve all your security surveillance needs in an effective way. The different kinds available are vandal proof exview high resolution, Sanyo day and night, Sony ruggedized day and night, Surveilux fixed lens, Vitek day/night vandal resistant dome, Vitek varifocal dome, indoor mini dome, dual voltage color surveillance cameras, auto iris camera lens, and alpha series indoor domes. Most CCTV security surveillance cameras are high resolution and of the best quality!

Bullet Security Cameras are a special type of small and sleek camera that is ideal for both indoor and outdoor installation. Sealed in cylinders and totally protected, they are impermeable to water and are totally weatherproof. Mountable on the ceiling or on the wall, they provide sharp, detailed video images while maintaining low profile visibility and an unobtrusive presence. In the Bullet Security Cameras category, you can find a variety of high tech CCTV supplies for your personal needs. These include 520 TVL Bullet, Sony Exview CCD, KT&C B/W cylinder camera, color cylinder cameras, color night vision CCTV security systems, high resolution, vari-focal, waterproof, Marshall Electronics, Surveilux, and Vitek professional equipment.

Pan/Tilt/Zoom (PTZ) and Controllable Cameras are of the highest quality security surveillance cameras in the security surveillance field. PTZ and Controllable Cameras are designed to be controlled by remote or through a DVR. They have the ability to move up and down as well as right and left. You can pan, tilt, and zoom in or out. You have all the control you want over these cameras, and they provide excellent surveillance and security. We carry vital equipment such as Bosch AutoDome indoor CCTV security systems with optical zoom range varying from 26x to 18x and 12x digital zoom. We also carry envirodome day or night outdoor security cameras, COP-USA PTZ color high speed outdoor, optical and digital CCTV security systems. As well as wireless remote, Sony exview indoor speed dome PTZ. KT&C outdoor, speed dome, and super zoom. Other brand names include Toshiba and Samsung.

Hidden Security Cameras are concealed cameras that allow you discrete surveillance in places where it best suites you. These include Accel security EXIT sign black and white camera, alarm clock radio, Astrotel B&W purifier camera, black and white clock surveillance camera, smoke detector, discreet emergency light camera, mini ball, GE security PIR, and KJB book surveillance cameras.

Zoom Security surveillance Cameras section includes cameras that have the ability to zoom in on whatever you want to give you more visibility on specific objects. Examples include KT&C 18x power zoom, KT&C zoom color surveillance camera, and Sanyo super high resolution Day and Night Camera.

Mini, Board, and Covert Cameras: Just as they sound, mini cameras are small, tiny cameras that come in wireless options and can be used for increased discrete security. Board cameras are tiny mini cameras set in small, flat housing, and are also highly useful in situations calling for more security and extremely low visibility. A Covert Camera is just what it sounds like too. Like the mini and board cameras, covert cameras are intended for use for those that need increased security and a totally unobtrusive camera. The Board/Mini section contains miniature devices for all your monitoring needs. These include KT&C black and white borad cameras, super mini CCD 600 TVL surveillance cameras, color broad security cameras, high resolution color module CCTV security systems, LCL Watec, Vitek pinhole board security cameras, DSP color CCD board surveillance cameras, metal encased color as well as black and white security cameras.

Wireless Security cameras are very essential to the CCTV industry. These cameras serve a very practical purpose, they allow you to setup the camera wirelessly so you will not have to go through all the hassle that come along with wires and cables. This equipment includes KJB color wireless clock radio, Toshiba wireless network, videocomm 4 channel security system color pinhole cam and rx kit, and black and white pinhole surveillance cameras.

Dummy Security Cameras can also serve your security purposes. Fake security cameras, or dummy cameras, are non-functional surveillance cameras designed to fool intruders, or anyone who it is supposedly watching. Those cameras are intentionally placed in a noticeable place, so passing people notice them and believe the place to be monitored by CCTV. These include 1-800 Dummy surveillance cameras with AC adaptors, outdoor housing, Dummy surveillance cameras with no led, mini dome surveillance cameras, motion detector dummy security cameras, outdoor dummy housing, and VITEK Dummy dome surveillance cameras.

And finally, Web/ Storage Cameras are top quality, high resolution security equipment for your CCTV security surveillance system. They include BOSCH digital network surveillance cameras, crow memocam PIR security cameras with storage, JVC digital networks, IP addressable lan or web fixed surveillance camera system, Panasonic network monitoring or day/night video surveillance equipment, Sanyo digital surveillance CCTV camera system with built in hard disk, or video server. Color, lan/wan/internet options are also available.

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Security cameras come in several different types and styles with features and specs that can be overwhelming for someone who doesnt hold an electronics engineering degree. We will go through all of the major types of CCTV security cameras, where to use each style, as well as explain some of the basic specs so that you can decide what type of CCTV equipment is right for your security system.

Bullet Cameras

Bullet Cameras are weatherproof and tend to be smaller than other types of security cameras. They come in sizes and shapes ranging from the size of a tube of lipstick to the size of a typical soda can. Bullet Cameras are also called lipstick cameras, tube cameras or missile cameras. If you are looking for nightvision or infrared cameras, you will find the largest selection among bullet cameras.

Dome Cameras

Dome type security cameras are the most popular style of security cameras. They usually have a base with a screw-on dome. The domes are tinted so that it is difficult to tell where they are aiming, this makes them very popular for retail applications. Most domes cameras are plastic, though you can check the armor dome section for vandal-proof domes which tend to be weatherproof with metal bases and polycarbonate sealed domes.

Armor Domes

Armor dome security cameras, or vandal domes, tend to be a little bit bigger than standard domes. They are more rugged in their construction and usually have heavy duty seals which make them weatherproof for outside installation. Most of the higher quality armor domes have a 3 axis gimbal, which allows them to be mounted on a wall as well as a ceiling. Armor domes are available with fixed lenses or adjustable lenses as well as with or without nightvision.

Box Cameras

Box cameras, or professional style security cameras, are the most versatile style of CCTV camera available. They do not usually include a lens or a mount, so you will need to purchase the lens and an indoor mount or outdoor housing separately. They are more complicated than domes or bullets, but box cameras allow for specialty lenses (i.e., for license plate recognition) and generally have more video quality controls than other styles of security cameras.  If you are mounting a box camera outside it will require an outdoor housing.

PTZ Cameras

PTZ cameras or Pan Tilt Zoom cameras are the most complicated style of security camera. These PTZ cameras are generally large dome cameras with motorized and computerized internals allowing for the camera to be controlled from the DVR, remotely or through a PTZ controller. These cameras use RS485 to receive controls and programming, so your DVR may require an RS232 to 485adapter. PTZ security cameras can also be programmed to run patterns. Speeds vary from 10 degrees per second to speed domes which can move in excess of 300 degrees per second.

Hidden Cameras

Hidden security cameras, covert cameras or spy cameras are some of the most popular style of security cameras available. These cameras use pinhole lenses with very tiny lenses and are usually enclosed in some other device that doesn’t look like a camera. Motion detectors, sprinkler heads, smoke detectors, wall clocks and custom configurations are common housings for covert security cameras. Some hidden cameras come with built-in microphones as well. Consult your local laws concerning audio surveillance.

Infrared / Nightvision

Infrared cameras or nightvision cameras are extremely popular with our customers. These nightvision security cameras provide clear color images during the day, and black and white images at night.  At night, infrared security cameras glow red and provide the camera with artificial light that can only be seen by the camera. These IR cameras operate even in total darkness. The more LED’s a camera has, the farther away it will see at night. Nightvision cameras are available in weatherproof bullet, dome and armor dome styles.

Low Light Cameras

Low light cameras are generally not able to see in total darkness, but are excellent for areas where clear security video is needed 24 hours a day, and there is some lighting available. These cameras, also called Low Lux cameras or Day/Night cameras can use a feature called sense-up to provide color images even in very low light conditions. Cameras with sense-up will sometimes need to be programmed during installation as the light sensitivity and shutter controls are adjusted through On Screen Display (OSD). Low light security cameras are usually available as domes, high-end bullets and box cameras.

Lighting Required

Cameras marked with the lighting required tile require better lighting. These cameras have a lux rating of 0.1 or higher and are generally best for installation in offices or homes where there will generally be better lighting available. (the lower the lux rating is, the better the camera will be able to see in low lighting. Some vendors will call these Day/Night cameras because they have a relatively low lux rating of 0.1lux, however, in our experience, that may be technically true, but far from the low light video quality most people expect.

Indoor

Indoor security cameras do not have any weather sealing. Water and moisture will kill a security camera faster than any other condition, therefore, these cameras should only be installed indoors where they will not see condensation or extreme temperatures. Indoor only security cameras come in dome styles as well as covert and PTZ styles.

Outdoor

Outdoor cameras come in various ratings. Weatherproof ratings begin with “IP” (international protection rating) and end with a number above 54. The higher the number the more weather resistant the camera is. Typically, IP65 is the standard rating, meaning that a camera with an IP65 rating can withstand a blast of direct water. IP67 means a camera is submersible up to 1 meter. Use weatherproof cameras outdoors or where temperature and condensation are an issue, like inside a walk-in cooler or in a workshop with lots of dust.

Outdoor Housing Required

The outdoor housing required category is for our more advanced security camera styles such as box cameras which require a separate housing to be placed outdoors. Housings are available separately in our accessories section and come with or without heaters and blowers for defrosting in the winter and camera cooling in the summer.

Fixed lens

Cameras that are marked with the fixed lens tile come with a fixed, non-adjustable lens. These cameras typically have 3.6mm semi-wide angle lenses providing an image that is 74 degrees wide. The higher the lens number in mm, the tighter the shot will be, and vice versa. Indoor domes with fixed lenses can be adjusted by purchasing separate mini-lenses in our accessories section.

Adjustable lenses

Security cameras with manually adjustable lenses, sometimes called vari-focal or “zoom” lenses allow the user to manually adjust the viewing angle when installing the cameras. These cameras allow the installer to dial in the level of detail they want to see in their shot and are very useful for front door shots or cash register views where detail is very important. The lower the lens number is, the wider the shot will be and vice-versa. Lenses with wider ranges are more versatile and can be adjusted over a wider viewing angle range. These lenses also control Iris openings giving the user the best light level adjustment without having to make any installation changes. Varifocal lenses are available on domes, armor domes and bullet cameras.

Motorized lenses

Security cameras with motorized lenses are usually called zoom cameras or ptz cameras. These cameras can be controlled electronically to zoom in and out in real time. They require RS232 to 485 adapters to control and are nice to have when someone is sitting in from of the DVR and is able to determine the best viewing angle for the situation. Motorized lenses are usually seen on ptz style dome cameras and as an option on box style security cameras.

What exactly is a TVL?

TVL is a resolution rating meaning television lines, the higher the number of TVL a camera has, the higher the picture quality of that camera. Basically the TVL is a count of the number of horizontal lines a camera can reproduce. This measurement started out as a way for the original television broadcaster to claim they were broadcasting in higher resolution than they actually were, but today, it is a useful measure when determining the comparative video quality between two seperate cameras. Today, the industry standard resolution seems to be 420TVL. High resolutions begins around 480TVL, though many cameras are available with resolutions well above that. 540TVL, 600TVL, 650TVL and 700TVL cameras are not uncommon. This is a sliding scale of course. The difference between a 350TVL camera and a 420TVL camera will  be more dramatic than that between a 420 and 480TVL rating. Still, as a general rule, when it comes to TVL, the higher the number, the clearer the picture.

What is Lux,  and why is it important?

Lux is a measure of illuminance, or in other words, a measurement of the amount of light available. The lux rating of a camera tells you how much light is required for that camera to provide a usable image. Keep in mind that the term “usable” is very subjective, and that lux ratings can be “adjusted” by unscrupulous manufacturers and marketers to make it appear they have a better CCTV camera. In general, the lower the lux rating of a given camera, the better that camera will perform at night or in low light conditions. Be wary of comparing lux ratings of cameras from different manufacturers as the lux rating relies on the F-stop at which it was measured, usually seen as 0.1 Lux @ F1.2. This subject requires an entire article to discuss properly, though you should now have enough information to make an informed decision on which product is right for you.

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Question by Ryan.: Wireless home motion sensor or outdoor security camera recommendations?
I have a problem with people and friends who want to talk or see me if they can’t reach me on my cell to come outside, they resort to the advantage of being able to come to my back door to my room from my side gate to my backyard and banging on my window and door to come outside. And it’s been becoming a nuisance lately. More and more often they do it at all hours of the night and day. And sometimes I just don’t want to hang out or do anything because I’m usually very tired at the times they want to.

I am a fairly new college student who must, like any other student, get his work done on time and needs to focus on the fact that work is always before play. And I can’t seem to do that with friends that evidently don’t understand that I have work to be finished.

So, I was wondering if there is a product available that can alert me from inside my room that someone is walking through my side gate that I don’t want to know I’m in my room? I’ve seen a few products that looked very tempting at Home Depot that is a basic motion sensor that you attach to the wall or whatever location your needing it in, and the other piece plug into an ordinary household electrical outlet that “beeps” or alerts me that someone is coming around back.
That seemed very basic and a maybe a solution to my problem.

But if there is an outdoor surveillance/camera security system that anyone knows of that is preferably wireless and can deliver the picture to my TV inside, please let me know where I can get one.

Please and Thank you all for your helpful answers!

Best Answer gets 10 Points!

Best answer:

Answer by jason
yes there are look on the net under wireless cams and you can get it and just put a motion sensor on the gate to let you know when to turn on the t.v. i think the thing is cheap they cant be more than 50.00 new and e-bay has them cheeper than that

What do you think? Answer below!

VIDEO SURVEILLANCE INFORMATION PORTAL FOR CCTV Closed circuit television (CCTV)

CCTV is a collection of video cameras used for video surveillance.

CCTV is different from broadcast television as all the equipment is directly connected together with cables or wireless transmitters that can not be received by standard television aerials or equipment.The transmissions of the video signals are only intended to be accessible by the equipment on its dedicated closed circuit.

CCTV is generally used in areas where there is an increased need for security, such as banks, airports and town centres. CCTV was initially developed as a means to increase security for banks but over time it has developed into a cost effective means of general video surveillance and home security.

A basic CCTV system comprises of the following;

Camera, lens and power supply. Recording device, VCR or a digital video recorder. A monitor. Wiring

CCTV Cameras

CCTV Cameras are available in colour, monochrome or cameras that have the ability to switch between colour and monochrome (day/night cctv cameras). The cctv cameras that switch between colour and monochrome are intended for environments of low lighting at various times. There are 2 reasons for using a cctv camera that can switch between colour and monochrome, monochrome cctv cameras are much more sensitive to low lighting environments, and monochrome cctv cameras can also be used with Infra red lighting. When there is adequate available light there is the added advantage of using a colour cctv camera for recording colour information, for example the colour of a car or a person’s clothing.

The primary function of a cctv camera is to convert light into a video signal, all cctv cameras require an optical lens to focus the light onto an image sensor located directly behind the lens inside the cctv camera.

There are two types of image sensor available, a cctv camera with a CMOS (Complementary Metal- Oxide Semiconductor) image sensor chip and the other more common type that uses a CCD (Charge Coupled Device) imaging sensor chip. The majority of CCTV cameras and Video Camcorders use a CCD imaging sensor, whereas CMOS imaging sensors are more commonly used in webcams, budget home security cameras and digital photography cameras. CCD cameras are capable of creating a much clearer and higher resolution image.

Different types of cctv cameras are Board Cameras,C Mount Cameras,IR Cameras,IP Cameras,Zoom Cameras,Speed Dome Cameras.

All cctv cameras require a power supply, these are usually 12 volts DC, 24 volts AC or 240 volts AC.

CCTV Lenses

As mentioned in the section on cctv cameras, all cctv cameras require an optical lens. The job of the lens is to limit and focus light onto the image sensor of the cctv camera. A lens can also automatically control the amount of light that reaches the imaging sensor, these lenses are referred to as Auto Iris (AI) lenses and are generally used outdoors where the light changes constantly during the day, at night and also in varying weather conditions.

It is also the job of the lens to control the depth of field of the image, either for a wide angle image or a narrow angle image depending on the distance of the object in question from the cctv camera. Where movable cctv cameras are used a zoom lens is usually fitted to allow varying points of a monitored area to be viewed. Zoom lenses are usually controlled by the CCTV operator.

CCTV Recording Devices

The recording device receives and stores the images from the cctv camera, previously time lapsed VCR’s and video multiplexers were generally used in CCTV systems, but due to developments in technology digital video recorders are now more commonly used.

Time lapse VCR’s allow cctv camera images to be recorded for varying lengths of time on a single 3 hour video tape, from lengths of 3 hours to over 960 hours. The problem with time lapse video recorders is that the longer they are set to record for the less video information they can record per second, similar to taking a photograph from 25 every second to one photograph every 4 seconds for example.

Digital video recorders use computer hard drives to store the recorded information and can however record for much longer depending on the size of the hard drive and the CODEC being used. A DVR combines and enhances the recording capabilities of a time lapse VCR and a multiplexer.

CCTV VCR and CCTV Camera Switcher

When there is a requirement for recording more than one cctv camera and video switcher can be used, the cameras are connected into the switcher and the switcher will automatically switch the image being fed to the monitor and the video. The disadvantage of using a switcher is that if there is an incident it is possible that the cctv camera image will change causing the incident to be missed.

CCTV VCR and CCTV Video multiplexer

A multiplexer is a device that takes multiple video images and lays them onto a VHS tape, it uses the properties of the PAL signal to record as many images from multiple cctv cameras every second as possible. The video information recorded is limited by the amount of cctv cameras on the system and the length of time the VCR is set to record for.

CCTV Stand alone digital video recorder

A stand alone DVR is designed specifically for CCTV systems. It uses computer hard drives to store video information and an embedded operating system to control the functions of the DVR, this type of recording device is most commonly used with current CCTV systems. CCTV Digital video recorders have various settings to enable more video information to be recorded at the required times using technology such as video motion detection, this means that the images from the cctv cameras are only recorded when the information of the image changes, for example a person walking in front of the cctv camera.

As previously mentioned, CCTV DVRs have a multiplexer built in which enables the user to view multiple images on the screen at any given time by segregating the screen image.

Many DVRs can also be connected to a network or a modem to allow remote access.

CCTV DVR Comes with High Contrast LCD Display is called Media DVR.

CCTV PC based digital recorder

PC based cctv DVR operate much in the way as stand alone cctv DVRs, but use video capture cards and additional software to carry out the operations of the DVR, these types of DVR can easily be upgraded to accept additional cameras by adding more capture cards. As with the stand alone DVR’s, PC based recorders can also be connected to the internet for remote access to the DVR.

CCTV Network video server

Network video servers are designed for IP CCTV cameras over WAN or LAN computer networks where each camera has its own unique IP address.

CCTV Monitor

There are two main types of monitor; the analogue monitor referred to as a CRT ( Cathode Ray Tube) and the digital monitor which is the commonly used PC monitor known as the TFT ( Thin Film Transistor) monitor.

There are advantages and disadvantages for both monitors, A TFT monitor is less space consuming than a CRT monitor. A CRT monitor will display a better image of low and medium resolution cameras than a TFT monitor. For high resolution cameras, a TFT monitor can be more cost effective than using a high resolution CRT monitor.

CRT monitors are usually specifically designed for CCTV systems and come fitted with a composite video input BNC (Bayonet Nut Coupling) plug. CCTV monitors are also designed for long term use compared to standard TVs and cater for higher screen resolutions.

Developed in the late 1940’s as a miniature version of the Type C connector, Bayonet Neil-Concelman (sometimes erroneously called a British Naval Connector or Bayonet Nut Connector). A connector widely used in the CCTV industry, usually for coaxial cable. Easy to install and reliable with little video signal loss. A rotating ring outside the tube locks the cable to any female connector.

CCTV Lighting

All cctv cameras require a degree of lighting to be able to pick up an image, monochrome cameras generally work well in darker environments than colour cctv cameras. Infrared lighting can also be used with monochrome cctv cameras.

There are various types or infrared lighting available, standard bulbs or LED ( Light Emitting Diode) types.

Infra red lighting can illuminate areas at different frequencies, although invisible to the naked eye, CCTV cameras can see the light emitted. Depending on the frequency range that the IR lamp operates, depends on how visible the lamp glow is to the naked eye. Note however, not all cameras are sensitive enough to pick up all frequencies of infra red.

Covert CCTV Camera

Covert CCTV is the practice of using video cameras in locations that are not made obvious to the persons being monitored in the specific cctv camera coverage area, but it is recommended that there is reasonable cause for the purpose of covert surveillance and that its primary objectives are clearly noted, only used for the purposes of preventing crime and are not used for longer than intended.

Remote CCTV

Remote CCTV is the means of accessing CCTV images over a computer network or standard telephone networks. Software is used on the local PC that allows access to the digital video recorder.

CCTV IP CAMERA

IP CCTV refers to Internet Protocol Closed Circuit Television; traditional CCTV systems use digital or analogue cameras using analogue cables that connect to a recording device such as a digital video recorder. IP cctv cameras are designed to plug onto any existing wired or wireless computer TCP/IP network, or directly onto a broadband connection so that the cctv camera can be accessed by any computer connected to the network, this includes over the internet.

Computers are used on the network to store the cctv camera images but with the flexibility of IP CCTV, the cctv cameras could be located on opposite sides of the world. Although IP Cctv Cameras can be connected directly to an existing network, bandwidth is always a consideration as the data sent from the cctv camera is likely to be much larger than standard data transferred over usual office networks which if not planned correctly can slow down the entire network.

CCTV Video Signal

The video signal is known as the moving image information signal produced from a video camera, we use a video signal standard called PAL (Phase Alternate Line) this is a colour or monochrome video signal that comprises of 25 images or frames per second. A new breed of CCTV cameras referred to as IP CCTV Cameras (Internet Protocol Closed Circuit TeleVision) uses a data signal which comprises of a series of computer readable still images. These cctv cameras are generally connected directly to a computer or a computer network and are accessed by software to enable the live viewing, recording and playback of the video images. One format for this moving video data is called MPEG (Moving Pictures Experts Group).

CCTV Video Transmission

Video transmission is the means of getting the video signal from the camera to the recording or monitoring device. The transmission can be carried over wires or over the airwaves via radio transmission.

The most commonly used cable for wired transmission is RG6 coaxial cable.

Network cable is being used more commonly as video is able to travel further along twisted pair cables than standard coax.

Other forms of video transmission include fibre optic cables, microwave transmission and licence free radio transmission.

CCTV Resolution

Resolution refers to the number of definable parts of the horizontal image produced by a camera, recorded by the video or digital video recorder and displayed on the monitor.

CCTV equipment manufacturers refer to this as TVL (TeleVision Lines). Minimum of 420 TVL is recommandable.

The TVL of the analogue PAL video information is closely compared to the pixels of a digital image.

VHS (Video Home System) recorders are capable of recording 300 lines of a monochrome image or 240 lines of a colour image, SVHS (Super Video Home System) is capable of recording 400 lines of monochrome image and 340 lines of a colour image.

The recording device should be the deciding factor when choosing the resolution of a camera as a 520 TVL camera being recorded on a VHS recorder will only record 240 lines out of the available 520 lines.

Digital Video Recorders (DVRs) have the advantage of being able to convert the analogue PAL signal into a digital signal at various resolutions, the downside is, that the higher the resolution of the image recorded, the larger the file size of that digital image. The conversion of the analogue PAL signal to a digital image is done using a CODEC (COmpressor-DECompressor).

CCTV Codec’s

A CODEC is used to convert an analogue video signal to a digital video signal either using hardware or software. Codec’s play an important role in digital video recorders; they are not only used to convert the analogue signal to a digital signal but to also produce the best quality video information at the smallest file size. This makes a big difference to the amount of video that can be recorded on a DVRs hard drive.

There are many standards of CODEC, those used for video compression that you may come across are MPEG-2, MPEG-4, JPEG 2000, AVI and H.264, H.264 is the latest codec being introduced into the CCTV market, deriving from video conferencing equipment.

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VideoSecu 4 Security Cameras for Home Security DVR System 1 / 3″ SONY CCD 420TVL Outdoor Night Vision Weatherproof wide viewing angle with power supply 1WF

This camera not made by SONY, it using SONY CCD image sensor and DSP technology, made by one of the largest professional CCTV camera manufacture. This day / night camera that captures images in all lighting conditions, with a built-in 28 long-range IR illuminator. Note: Camera extension cable not included, sold separately in our shop.

List Price: $ 499.00
Price: $ 269.99

www.HomeSecurityStore.com This video features Home Security Products – The RFDI Wireless Doorbell & Intercom System from Chamberlain allow you to speak to guests from anywhere in your home. Package contains 1 wireless doorbell and 1 wireless portable intercom. Designed for use as a wireless doorbell and intercom for residential, as well as commercial applications. This item is now discontinued. However, we have a new and improved version seen here – http
Video Rating: 5 / 5

Defender SN300-4CH-001 User-Friendly Web-Ready DVR Security System with 4 Indoor/Outdoor Night-Vision Surveillance Cameras (Black)

• Do-it-yourself system allows you to set up and monitor your property without the need for a professional installer
• Record over 2 years of video footage on the built-in 500GB hard drive
• Transfer recorded footage directly to your computer using the included USB cable
• View video online with no service fees from any computer in the world
• 24/7 lifetime live customer support is available through phone, email, and live web chat both before and after you buy

Defender SN300-4CH-001 User Friendly Web Ready DVR Security System with 4 Indoor/Outdoor Night Vision Surveillance Cameras

List Price: $ 639.99

Price: $ 639.99

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