Security Camera CCTV DVR Expert

San Diego CCTV Security Camera Experts

noreply@blogger.com (Mark Allen) — Mon, 16 Mar 2009 11:36:02 PDT

Ultra-compact video encoder supports H.264 compression - Axis Communications has introduced a highly compact and cost-effective one-channel video encoder with H.264 video compression.

SanDiegoCCTVExpert.com

CCTV Surveillance Monitors - First, make sure to purchase a monitor specially to handle the type of use it will receive.

Security And Surveillance Camera Lenses - As with regular surveillance camera, the lens on a surveillance camera determines how wide an image is created and how much light is let in.

SanDiegoCCTVExpert.com

Choosing A DVR - For businesses that do not want to constantly change tapes, DVRs are definitely the way to go.

This Changes Everything: Spectra IV IP An IP-based camera positioning system with the features, responsiveness, and reliability of the most trusted name in the industry. Continue reading this article about the This Changes Everything: Spectra IV IP.

Important Items to Consider for Your Remote DVR System When you set up your remote DVR system, there are several important things to consider that will ensure you get the most optimal benefits from your system. Continue reading this article about the Important Items to Consider for Your Remote DVR System.

Image Acquisition, Color Cameras, Time lapse VCR, Digital Recorders. Continue reading this article about CCTV Product Range.

SanDiegoCCTVExpert.com

Security CCTV Surveillance Cameras Boom

noreply@blogger.com (Mark Allen) — Fri, 16 Jan 2009 12:38:22 PST

As the new year has started we are seeing more and more people turn to adding security cameras to their home, businesses, or company.

Maybe it is the economy with more petty crime or maybe it is the threat of terrorism, we have seen a 30% increase in sales.

We have created Power Points on our web sites describing the reasons for Security Cameras.

Private Video Surveillance Cameras Streaming Public Areas

noreply@blogger.com (Mark Allen) — Tue, 16 Dec 2008 16:36:15 PST

This is an excellent post on a blog "Video Everywhere and the Citizen Surveillance State" about a surveillance video camera that some want others hate.

Below are just a few of the comments:

But they can't do that right?

Force someone to take down his own webcam, force him to post a self-insulting "apology" on his own website...

Who threatened Adam?

I don't think they had any right to do so.

As far as I see it, and please correct me if I'm wrong, the webcam existed in Adam's privately rented apartment. He uploaded the video -- his video -- to his site. If he chose to edit, he had that prerogative. As far as I know, he broke no laws in filming and streaming his webcam.

That makes it all the more outrageous that thugs could threaten him with brute force -- and succeed at it -- in America, of all places, land of the free and home of the brave.

Putting aside the specifics of Adam's case, do we want a culture where everyone can record everyone else? Imagine if technology advances to the point where cameras shrink so that they can stream from one's glasses. Imagine if a casual observer can't even tell the camera's there, let alone that it's on and uploading. What happens then?

Posted by: dR December 16, 2008 at 06:34 AM

dR: Indeed. While Adam is a sympathetic character in this tale, and it is wrong that he was "forced" to take the camera and site down, your last point indicates the complexities of the issue.

If someone was constantly uploading video of the sidewalk outside your house, how would you feel?

Or, if there was a good chance that your bus ride to work was streamed to the Web, would you feel safer or feel uncomfortable?

Posted by: The 463: Inside Tech Policy December 16, 2008 at 09:38 AM

Big Brother is here, the web, broadband to every home and apt. has just accelerated it.

I say live with it...the next time the security camera catches a murderer or rapist in the area or outside that apt. window. The camera will be lauded as a must and more cameras should be installed.

Today's Meaning of Security Cameras

noreply@blogger.com (Mark Allen) — Sat, 06 Dec 2008 10:48:07 PST

This excerpt was from a blog on myspace.com.

With all the new technology of cameras,on school campuses,inside schools,almost every corner,satelite surveilance,how are these assassinations,animal cruelty carried out.

I am very sad,not just for the victims,but the future victims.Are these Security Cameras being used by the installers for two faced reasons,is it not enough that our cell phones are also microphones,with GPS for satelites,am I to believe that if they want you gone you can escape,not!

7 Questions to Ask Before Your Installing Your Security Camera

noreply@blogger.com (Mark Allen) — Sat, 06 Dec 2008 09:30:40 PST

Top 7 Questions to ask your security camera expert to find the best surveillance camera

* Do I need indoor or outdoor security cameras?

* Does the area that I am installing the security camera have any lighting?

* Do I need the surveillance cameras to see in the dark using infrared?

* How will I mount the surveillance cameras?

* What type of body style will look best for my surveillance security camera installation?

* Does the body color of the camera matter to me?

* How far away from the area I am monitoring will the camera be mounted?

* What type of lens will I need?

Read more of the article here.

San Diego Surveillance Security Cameras DVRs

noreply@blogger.com (Mark Allen) — Thu, 13 Nov 2008 11:16:12 PST

Important Items to Consider for Your Remote DVR System

When you set up your remote DVR system, there are several important things to consider that will ensure you get the most optimal benefits from your system. These include:
A static IP address -- Utilizing a remote DVR device and corresponding web server will require you to have a static IP address assigned to the device.

Carefully consider compression rate and transmission format -- The compression rate and transmission format of the captured video data will have a big impact on the quality of the image displayed. In general, the better the image quality, the more disk space required to store the image, and the longer it takes to transmit it remotely. Compression rates and image resolutions do vary by camera, but you can configure file transfer settings from your DVR device as well.
There is a wide variety of remote DVR devices available on the market.

You can find many quality offerings from a number of companies that specialize in these devices. A company called OptiView is just one example. They offer a wide selection of remote DVR units that can support from four all the way up to 48 surveillance cameras. Their DVRs are designed to facilitate remote video access as well as remote camera control abilities. They offer 704X480 display resolution and H.264 real time rate of compression. This functionality ensures you will have access to quality playback images without the skipping that often occurs during remote video playback.

Incorporating a DVR device that offers remote functionality will add a tremendous amount of versatility to your surveillance system. You will gain access to view live and recorded video feeds, search stored video archives, set and change user settings, change camera settings and positions, and manage individual camera recording schedules. If you are interested in learning more about how the OptiView devices mentioned can help you gain this functionality, you can click on the following link to view a live security DVR demo and see how their product works.

SanDiegoCCTVExpert.com 858-277-1247

Surveillance Cameras Stolen Man Caught on The Same Cameras

noreply@blogger.com (Mark Allen) — Mon, 03 Nov 2008 09:22:41 PST

(Sacramento,CA) A man on a surveillance camera stealing a surveillance camera. Not just one, but three video cameras in all from a school in Stockton - and they all captured him doing it.

4 of Orange County San Diego's Best Blog Posts on Security Cameras

noreply@blogger.com (Mark Allen) — Tue, 28 Oct 2008 19:54:18 PDT

Security Camera CCTV DVR Expert: Security Camera CCTV Video Uses

Security Camera CCTV DVR Expert: Who Needs a Surveillance System?

Security Camera CCTV DVR Expert: CCTV Security Camera Glossary and Videos

Security Camera CCTV DVR Expert: Security Camera Glossary

San Diego Surveillance Camera Systems grab the RSS Feed for your site....

Security Cameras Can Now Be Set to Detect Gun Shots! Watch The Video Here!

Top 4 Items to Consider for Your Remote DVR System

noreply@blogger.com (Mark Allen) — Tue, 21 Oct 2008 05:15:15 PDT

Top 4 Items to Consider for Your Remote DVR System

When you set up your remote DVR system, there are several important things to consider that will ensure you get the most optimal benefits from your system.

These include:

• A static IP address -- Utilizing a remote DVR device and corresponding web server will require you to have a static IP address assigned to the device.

• Carefully consider compression rate and transmission format -- The compression rate and transmission format of the captured video data will have a big impact on the quality of the image displayed. In general, the better the image quality, the more disk space required to store the image, and the longer it takes to transmit it remotely. Compression rates and image resolutions do vary by camera, but you can configure file transfer settings from your DVR device as well.

Go here to read more:Read More.....

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Top 10 Tips for Purchasing a DVR

noreply@blogger.com (Mark Allen) — Mon, 27 Oct 2008 09:16:23 PDT

Top10 tips to get the most from your DVR

1. Choose the right DVR & storage capacity for you.
Getting the best results from your DVR begins with choosing a system that can handle your needs.

2. Set the right frame rate.One of the easiest features to set, more than deciding which buttons to push needs to be considered when choosing which frame rate is right for you.

3. Keep your DVR recording with the overwrite feature.Learn how to control your DVR by mastering this archive feature.

4. Turn your DVR into a full time security guard. Learn how to make your DVR work for you by activating alarm inputs, alarm outputs and motion detection.

5. Don’t let conversations go unheard.Most DVRs have audio capability and by adding an accessory, like a high quality mic, your DVR con record video AND audio.

6. Make your DVR tamperproof.Safeguard your video footage by preventing unauthorized access.

7. Protect your investment from power surges& failures.This standard accessory offers peace of mind that your DVR goes on performing without interruption.

8. Access & manage your DVR virtually anywhere.By taking advantage of this technological advancement, you can learn how to access your video over the Internet.

9. Be prepared to offload your video (and audio).Caught it on the tape, now what? Have your video footage packaged and ready to hand off to law enforcement officials, attorneys, insurances agencies and more.

10. Optimize the video quality with the optimal connection. Learn how to get the best picture quality on your monitor.

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4 Ways To Improve Security Camera Lenses

noreply@blogger.com (Mark Allen) — Sun, 12 Oct 2008 07:12:51 PDT

Security And Surveillance Camera Lenses

As with regular surveillance camera, the lens on a surveillance camera determines how wide an image is created and how much light is let in. The lenses you purchase should match the format of your surveillance camera:

1/4" lenses work best with 1/4" cameras. It is possible to use a larger format lens than the surveillance security camera calls for, but it is not recommended.

Also, fixed focal length lenses offer only one set field of view and are the least costly. To change the resulting image, you need to switch lenses. Variable focal length camera lenses and zoom lenses offer greater flexibility, allowing you to adjust your image's field of view. Motorized zoom lenses, the most costly type available, give you the ability to control your cameras remotely.

If you want to zoom out for general surveillance and in for detail when you spot suspicious activity, motorized camera focus is preferable.If you will be using the surveillance camera outdoors, look for a lens with an automated iris. As in the human eye, the iris of a lens is what controls the amount of light coming in to the surveillance camera.

Automated irises can significantly improve performance for outdoor cameras, where light levels vary considerably. However, you can save money and use a manual iris lens when the scene illumination never changes, for example in an illuminated store or office. But we do not recommend it.

San Diego Communities SanDiegoCCTVExpert.com Services

Orange County and Irvine Surveillance Security Cameras

noreply@blogger.com (Mark Allen) — Thu, 09 Oct 2008 10:04:05 PDT

We have put together videos of uses of a security cameras in restaurants at our website.

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Corona Del Mar Surveillance Cameras
Costa Mesa Surveillance Cameras
Cypress Surveillance Cameras
Dana Point Surveillance Cameras
East Irvine Surveillance Cameras
El Toro Surveillance Cameras
Foothill Ranch Surveillance Cameras
Fountain Valley Surveillance Cameras
Fullerton Surveillance Cameras
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La Habra Surveillance Cameras
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Rancho Santa Margarita Surveillance Cameras
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San Diego Surveillance Security Cameras

noreply@blogger.com (Mark Allen) — Thu, 09 Oct 2008 09:39:41 PDT

We really are being watched by big brother.....We have put together San Diego Video compilations of everything from a woman dying on a hospital floor to the earthquake in China.

You may view them here on our website. Also, below are some of the areas of San Diego we service.

San Diego Communities SanDiegoCCTVExpert.com Services

San Diego Security Camera Systems

noreply@blogger.com (Mark Allen) — Sun, 28 Sep 2008 20:36:51 PDT

San Diego Communities SanDiegoCCTVExpert.com Services

Orange County Surveillance Cameras

noreply@blogger.com (Mark Allen) — Sun, 28 Sep 2008 15:44:51 PDT

Orange County Cities that OrangeCountyCCTV.com Now Services:

Aliso Viejo Surveillance Cameras
Anaheim Surveillance Cameras
Anaheim Hills Surveillance Cameras
Atwood Surveillance Cameras
Brea Surveillance Cameras
Buena Park Surveillance Cameras
Capistrano Beach Surveillance Cameras
Corona Del Mar Surveillance Cameras
Costa Mesa Surveillance Cameras
Cypress Surveillance Cameras
Dana Point Surveillance Cameras
East Irvine Surveillance Cameras
El Toro Surveillance Cameras
Foothill Ranch Surveillance Cameras
Fountain Valley Surveillance Cameras
Fullerton Surveillance Cameras
Garden Grove Surveillance Cameras
Huntington Beach Surveillance Cameras
Irvine Surveillance Cameras
La Habra Surveillance Cameras
Ladera Ranch Surveillance Cameras
Laguna Beach Surveillance Cameras
Laguna Hills Surveillance Cameras
Laguna Niguel Surveillance Cameras
Lake Forest Surveillance Cameras
Los Alamitos Surveillance Cameras
Midway City Surveillance Cameras
Mission Viejo Surveillance Cameras
Newport Beach Surveillance Cameras
Newport Coast Surveillance Cameras
Orange Surveillance Cameras
Placentia Surveillance Cameras
Rancho Santa Margarita Surveillance Cameras
San Clemente Surveillance Cameras
San Juan Capistrano Surveillance Cameras
Santa Ana Surveillance Cameras
Seal Beach Surveillance Cameras
Silverado Surveillance Cameras
Stanton Surveillance Cameras
Sunset Beach Surveillance Cameras
Surfside Surveillance Cameras
Trabuco Canyon Surveillance Cameras
Tustin Surveillance Cameras
Villa Park Surveillance Cameras
Westminster Surveillance Cameras
Yorba Linda Surveillance Cameras

Checklist for Choosing a Surveillance Camera DVR

noreply@blogger.com (Mark Allen) — Fri, 26 Sep 2008 04:37:14 PDT

Choosing A DVR

For businesses that do not want to constantly change tapes, DVRs are definitely the way to go. While security VCRs usually offer a time-lapse mode that lets them for long periods of time, the resulting images are not a good record of events - they record only one snapshot every eight seconds. To get higher quality, you need to change tapes every day or more often. DVRs, on the other hand, can record for weeks or even months.

DVRs are more considerably more expensive than VCRs, which is their only major drawback. However, the DVR prices have fallen considerably over the last year and will continue to do so. Already, low-end DVRs and high-end VCRs are in similar price ranges, and most manufacturers have stopped introducing new VCR models. Despite the increased cost, we recommend video security system buyers purchase a DVR whenever possible.

Choosing a DVR
As part of your CCTV shopping preparations, decide how much quality you need out of your recorder. There is no magic number or spec here: you need to decide how "good" the recorded picture needs to be, either for your own use later or possibly to use in court. Once you decide this, you will be able to look at samples on the DVRs you are evaluating and see if they meet your standard. Vendors may be eager to throw compression settings, pixel counts, and other statistics at you - but those numbers are irrelevant if the picture itself does not offer the detail you need for legal or investigatory purposes.

The size of the hard drive will dictate how much you can record. On the low end, an 80-gigabyte (GB) hard drive will store about five to eight days of full-motion video from one camera. Most of the time you will not be recording full motion, so this is much more than it might seem. For most businesses, spending a little extra to get 120 or 240 GB is a worthwhile investment. Units expand up to 1.2 terabytes (1,200 GB), which can store many cameras' worth of data for long periods of time.

Replaceable hard drives are a cheap way to boost storage capacity. With some DVRs, you can buy additional hard drives for as little as $150 and swap them in and out as you need. This gives you the advantage of being able to store your data separately from the main security system.

You will also need to consider how many cameras you want to connect to the DVR. Keep your future expansion needs in mind - buying a higher-grade model to get more inputs and more storage space can save you considerable money in the future. The DVR will also function as a multiplexer, putting up to 16 cameras on one display and allowing operators to call up any one image for closer inspection.

Also, if you ever have to use your security images - in court or in other ways - you will need to be able to export the video. This is an important consideration: some systems let you create industry-standard .avi files, which can be played on any PC, and burn them to CD. Others only allow you to export proprietary formats that can only played on the same brand player. Most DVRs do offer the option to connect a standard VCR - this allows you to simply tape the digital recording onto a standard VHS cassette.

Related Articles:

Remote DVR System Checklist.

What is Network Cabling?

10 Steps to Successful A Technology Rollout

Surveillance Cameras - Big Brother IS Watching

noreply@blogger.com (Mark Allen) — Wed, 10 Sep 2008 05:16:05 PDT

Average American is caught on camera 200 times every day on Security Cameras in San Diego or Surveillance Camera Systems.

According to a recent documentary, the average American is caught on camera 200 times every day. NBC 7/39 reporter Artie Ojeda began tracking how many times he was watched in a single day.

It began with five security cameras at the gas station and mini-mart. On the freeway, Ojeda discovered he passes by no fewer than six CalTrans camera each day. Then, there were cameras on stoplights, which most people don't realize are capturing their every move.

In downtown San Diego, there were cameras on almost every building, including no fewer than 11 on the Federal Building. There are cameras on elevators and during the walk through Horton Plaza to the NBC 7/39 building, Ojeda found countless cameras on stores, including one at Macy's.

Read the entire story about San Diego Security Cameras Systems.....

For Friendly Help Call 800-203-9841....

Surveillance Cameras in a Bar-Having a Little Fun

noreply@blogger.com (Mark Allen) — Tue, 09 Sep 2008 05:59:41 PDT

So here's the setup- someone's agreed to having a hidden earpiece so Charlotte can communicate with them. All they have to do is follow every instruction Charlotte gives them! This setup takes place in a bar in Cardiff- watch these guys humiliate themselves in front of their friends.

Watch the funny video....

What type of security camera should I choose for my surveillance camera system?

noreply@blogger.com (Mark Allen) — Thu, 04 Sep 2008 04:44:40 PDT

Security cameras come in many different styles, each with its own advantages and disadvantages. The security camera that will work best for your purposes will depend on several factors, such as will the cameras be inside or out, used during the day, night, or both, and will the subject know they are being recorded.

Bullet style security cameras are the most popular security cameras used in security camera dvr systems. They can be used inside or out. These security cameras come with all of the required mounting hardware and weather-resistant casing for external protection. Most of our bullet cameras have a fixed 3.6mm lens that allows you to see facial features out to about 35 feet and provides a 70 degree angle of view. This is the widest angle you can have without distorting the picture. Bullet cameras are relatively inconspicuous since they are small and do not have an obvious presence.

Infrared security cameras are also very popular, as they allow for recording in little or no lighting conditions. Most infrared security cameras are bullet style with weather-resistant housing for use either inside or out. The cameras have infrared LEDs installed around the edge of the lens which allows image capture from 20 to 90 feet in complete darkness depending on the number of LEDs and even further with a little bit of ambient light. As infrared cameras are typically bullet-style, these cameras are also relatively inconspicuous to the subject.

The advantage to PTZ (pantel zoom) security cameras is that the lens can be changed. This is important if your application requires focus on a particularly distant area beyond the focal view of a typical bullet camera. Day and night security cameras have an extra sensitive imaging chip which allows for high quality image capture in low light situations without the use of infrared LEDs. While security cameras make great indoor cameras, additional housing is required to use these cameras in an outdoor application. These cameras are larger in size than bullet cameras, which makes them noticeable and preferred for applications where you want the subject to know they're being recorded.

Dome security cameras basically provide a different look. Domes provide a popular means of monitoring a specific area in a more discreet manner than a traditional camera. As dome cameras are often less intimidating, most sites will utilize these security cameras where a non-aggressive atmosphere is ideal. Housed inside a plastic casing, usually with a smoked or tinted finish, dome cameras offer protection from tampering while preventing observers from detecting the target area of surveillance.

IP Based Security Cameras are becoming more popular. The Pelco Spectra IV IP Camera is one of the most popular IP cameras currently on the market. Seamless integration into all video security applications while delivering first-of-its kind, true hybrid functionality. Spectra IV IP Changes Everything. Featuring all of the advantages of a network camera with the performance of an analog system, Spectra IV IP is the best of both worlds and is guaranteed to be the benchmark for every IP-based positioning system to follow.

In many applications, various security camera types will be used for certain areas of the application. For instance, in a store environment, it would not be uncommon to have dome cameras in the store interior, professional cameras in the back warehouse, and bullet cameras monitoring the external entryways.

For Friendly Help Call 800-203-9841 or visit LosAngelesCCTV.com

Security Camera and Surveillance Camera Lenses

noreply@blogger.com (Mark Allen) — Tue, 02 Sep 2008 05:40:56 PDT

Security And Surveillance Camera Lenses

As with regular surveillance camera, the lens on a surveillance camera determines how wide an image is created and how much light is let in.

The lenses you purchase should match the format of your surveillance camera: 1/4" lenses work best with 1/4" cameras. It is possible to use a larger format lens than the surveillance security camera calls for, but it is not recommended. Also, fixed focal length lenses offer only one set field of view and are the least costly. To change the resulting image, you need to switch lenses. Variable focal length camera lenses and zoom lenses offer greater flexibility, allowing you to adjust your image's field of view. Motorized zoom lenses, the most costly type available, give you the ability to control your cameras remotely. If you want to zoom out for general surveillance and in for detail when you spot suspicious activity, motorized camera focus is preferable.

If you will be using the surveillance camera outdoors, look for a lens with an automated iris. As in the human eye, the iris of a lens is what controls the amount of light coming in to the surveillance camera. Automated irises can significantly improve performance for outdoor cameras, where light levels vary considerably. However, you can save money and use a manual iris lens when the scene illumination never changes, for example in an illuminated store or office. But we do not recommend it.

Dome housings like this protect PTZ cameras and hide their orientation.

Pan, Tilt, Zoom

For advanced security applications, you may want a pan, tilt, zoom (PTZ) camera. With the right equipment, a camera operator can pan (scan left and right), tilt (look up and down), and zoom in and out. The significant catch is the cost: PTZ systems are a higher cost than fixed cameras, however most users find them very effective for surveillance.

Camera Housings

Cameras need to be protected from potential harsh elements. Housings can range from simple coverings, to impact-resistant protection, to outdoor housings that include heaters and blowers for cooling. A more specialized type of housing is the dome: tinted Plexiglas hemispheres that prevent subjects from seeing which direction a camera is pointing. Choose the right housing based on the placement of the surveillance camera and its expected usage.

Related Articles and Videos on LosAngelesCCTV.com

How to Choose a CCTV Surveillance Monitor

noreply@blogger.com (Mark Allen) — Fri, 22 Aug 2008 04:02:19 PDT

CCTV Surveillance Monitors by Mark Allen

First, make sure to purchase a monitor specially to handle the type of use it will receive. Televisions are not good monitors, since TVs are built to be on for a few hours per day, not the 8 to 24 hours per day surveillance monitors endure. In some cases, computer monitors do make acceptable substitutes. Flat-panel LCD screens make great CCTV monitors for larger systems because they take up little space, have excellent resolution, and generate less heat than regular monitors.

As discussed earlier, make sure your monitor resolution matches your cameras. Buy a monitor with lower resolution and your cameras' capabilities won't come through; buy one with higher resolution and you are throwing money away. And of course, make sure you buy color monitors if you opt for color cameras.

Also consider the size: a 9" monitor may be sufficient if the operator is sitting directly in front of it, but a 15" monitor is the smallest you should choose if you plan to combine images from multiple cameras onto one monitor. Merging multiple images onto one screen can be an effective way to save space, and appropriate if there is a dedicated employee who has the ability to zoom in on suspicious activity.

Mark Allen is a frequent contributor to www.LosAngelesCCTV.com and www.OrangeCountyCCTV.com

How to Use the Events Feature on the DS2 DVR.

noreply@blogger.com (Mark Allen) — Sun, 17 Aug 2008 14:53:07 PDT

This is a video demonstrating how to utilize events on a Dedicated Micros DS2 DVR.

Also, you can view more videos at our web site for all the uses of a Security Camera System.

Los Angeles Security Cameras Capture Ghost on Video

noreply@blogger.com (Mark Allen) — Wed, 13 Aug 2008 17:56:37 PDT

LosAngelesCCTV.com has compiled security camera videos on Ghosts to the earthquake in Sichuan.

Check them out by clicking here.

Los Angeles Security Camera Terms

noreply@blogger.com (Mark Allen) — Tue, 12 Aug 2008 05:03:27 PDT

Los Angeles Security Terms

Glossary provided by Tech-Army.org

AC adaptor - Also called a power supply. All CCTV devices needs power of some sort. Each device has its own power requirements (usually 12 volts with a minimum amperage). The power coming out of the wall (in the US) is 110 to 120 AC. The adaptor converts the AC power to DC power and will adjust it to a specified amperage. The power supply should be included with each item - you usually don't have to buy these separately.

alarm input - An input connection to a security VCR or DVR that triggers the unit to start recording if the alarm is triggered.

analog - There are two main ways of doing things electronically, analog or digital. An analog signal can be represented as a series of sine waves. The term originated because the modulation of the carrier wave is analogous to the fluctuations of the human voice or other sound that is being transmitted.

analog system - Most cameras used in cctv applications are analog. Security VCRs, switchers, multiplexers and quads also are analog devices. Any cctv system that consists of analog devices are considered analog systems. Compare to 'digital systems'.

angle of view - For security cameras, this refers to the angular range in degrees that you can focus the camera on without distorting the image. When focusing close up, you can generally see a wide angle of view. If the focus is distant, the angle of view is smaller or narrower. security cameras

apurture - The opening of a lens which controls the amount of light let into the camera. The size of the aperture is controlled by the iris adjustment. By increasing the f stop number (f1.4, f1.8, f2.8, etc.) less light is permitted to pass into the camera.

armor dome camera - These cameras are designed to resist vandalism by using a hi-impact reinforced polycarbonate dome casing. security cameras

audio - Most cameras capture 'video' only (what you can see) - some come with audio too (sound). You can add a microphone to a security system to capture audio if needed. To record the sound, your recording device needs to support audio (must have at least one audio input). security cameras

auto electronic shutter - The ability of the camera to compensate for moderate light changes in indoor applications without the use of auto iris lenses

auto iris control - A lens in which the aperture automatically opens or closes to maintain proper light levels on the faceplate of the camera pickup device.

auto gain control - An electronic circuit used by which the gain of a signal is automatically adjusted as a function of its input or other specified parameter.

back light compensation - A feature on newer CCD cameras which electronically compensates for high background lighting to give detail which would normally be silhouetted.

bullet camera - A type of camera with a bullet like shape. Can be used inside or out. Some come with infrared lighting.

These are just a few of the terms, please see our website www.LosAngelesCCTV.com for a complete list of CCTV and Security Camera System Terms.

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