Los Angeles audio video security installation blog

Security Camera System, Audio, Video, DirecTV and Intercom Blog
join our blog.
post your questions and comments
steved@americandigitals.com 

July 10-09

Comparing DVR base and PC base CCTV?

PC Based Digital Video Recorder Overview:

Benefits:

· High Resolution Recordings (640x480)

· Easy to use and flexible

· Saves time playing back video

· Stores large amounts of video or recording days

· Little or no maintenance

· Easy network integration

Limitations:

DVR or Hardware Based Digital Video Systems

· 640x480 High Res Recording

· Live Video Viewing

· Remote Access via Internet

· Motion Recording

· Automatic Schedules

· Multiple Audio Recording

· Password Protection

· Saves Space

· Cost Effective

· Optional Wall Mounting

Benefits:

· High resolution digital video recordings (640x480)

· Live Camera Viewing, No delay.

· Programs with handheld remote, much like a VCR.

· Little or no maintenance

· Saves Space

Limitations:

· Harder to program and operate than PC based DVR's.

· Non-expandable

July 02-09

I want to install a television on our outdoor patio. Is it necessary to purchase an outdoor television?

Yes, you need an outdoor water resistant TV. Indoor TV will work also the question is for how long. There is humidity outside, even if it is not directly under rain. as you know electronics and moisture don’t mix well.  Think about the cost of replacement every couple years vs. spending the money up front to get a set that is built to last outside through whatever weather you have. Also some are built with a special panel which are a lot brighter than your typical TV so you can see it well no matter how much sunlight might be present. With a wireless feature, if you can’t get wiring out to where you want the set, you still can transmit your TV source over air to the set. Although hard wiring is always better, It works fairly decent . I hope this information helps you make the best decision for you and your situation.

Interested in having your TV Installed over a fireplace?

Check Us Out, call 310-470-2320 and schedule a FREE visit

Any critical area at a facility is considered a contact point that can be wired to a zone on a central alarm panel and paired with a video camera. Consequently, any contact point can be monitored 24/7 through systems that can immediately trigger an alarm signal that lets a monitoring center know a security event occurred at that specific contact point. Contact points can include: cash register lanes, back doors, stocking areas, server/computer rooms and safes. Triggers that can be set to trip the alarms include: doors opening or closing, motion or heat, glass breaking or a number of other events. Because all stores’ needs are different, its contact points and triggers will also vary, resulting in the need for custom-designed security systems. Additionally, video monitoring technology is compatible with many manufacturers’ control panels, allowing retailers to often connect existing systems without having to purchase new equipment or make only minor upgrades.

Jun-10-09

Do I need a camera system for my pharmacy?

Armed robbery. Employee theft. Data hackers.

The TV market is moving rapidly towards high-definition television, HDTV. This change brings truly remarkable improvements in image quality and color fidelity. HDTV provides up to five times higher resolution and twice the linear resolution compared with traditional, analog TV. Furthermore, HDTV comes with wide screen format and DVD-quality audio. Growth in the consumer market for HDTV is impressive. In 2007 the HDTV household penetration in the U.S. was approximately 35%. According to estimates, 85% of all viewers will have an HDTV set at home by 2012. Already today, virtually all major television productions are HD. The basic difference between HDTV and traditional analog TV is the number of pixels that make up the image information on each screen. During the second half of the 20th century two different standards dominated the market: PAL and NTSC.

Plasma / LCD Installation

March 18, 09

Should I install wired or wireless CCTV ?

Wired CCTV (the professional way)

Wired security cameras provide zero interference and can be installed hundreds of feet away from the PC security System or DVR system. With wired security cameras you can power the camera locally or power it up at the system location, depends on the cable being used and outlet locations. Siamese cable will transmit both power and video signal back to the power supply and recording device  in one run. This is the proper way of doing it right.

Wireless CCTV

wireless transmission is very popular lately because of location disability. In reality there is no 100% wireless cameras, even wireless cameras need power source so power connection is a must , the voltage is usually 12V or 24V.  An average wireless kit can transmit video and audio up to 1600ft. This reduces to approximately 40-50% when used indoors because of blockage. There are some restriction on using wireless cameras for example:  wireless cameras can only work on 4 channel frequency so you cannot use more then 4 of these kits next to each other. Cameras and receivers are available with 4 selectable channels making multi-camera systems feasible.

Dome Camera

Dome security cameras are being used more and more because of its fashionable look,  non-invasive  design and providing non-visible angle. Dome cameras applications are: stores, shopping malls, offices, building entrances, it is designed to blend into its surrounding environment. A Dome Camera offers high security and an increased surveillance capacity because of its qualities. The Dome Security surveillance Camera System is a great way to achieve all your security surveillance needs in an effective way. The different kinds available are vandal proof , high resolution, Wide Angle, Toshiba day and night, Sony day and night, Panasonic, Hyundai  and DirecVU with varifocal lens, indoor, outdoor,  mini dome, dual voltage, black and white,  color surveillance cameras and auto iris camera lens.

Bullet Camera

Bullet Security Cameras are usually Infrared, mountable on the ceiling or on the wall, are a special type of small and sleek camera that is ideal for both indoor and outdoor installation. Designed to be sealed in a cylinder and totally protected, they are resistant and impermeable to water and are totally weatherproof. They provide sharp, detailed video images while maintaining low profile visibility and an unobtrusive presence. With high TVL these are the best in their category and provide years of usage without any problem.

Infrared Security Cameras are designed for increased protection and optimum security especially at night, locations with limited or no light and dark areas. With Infrared Security Cameras, you can see in total darkness (0.0 Lux), and they are great cameras for extremely low or non-lighted areas.

Pan/Tilt/Zoom (PTZ)

PTZ cameras are Controllable Cameras are of the highest quality and are used in high profile premises with need security surveillance cameras in the security surveillance field. PTZ and Controllable Cameras are designed to be controlled by keyboard, remote or through PC and DVR units. They have the ability to move up and down as well as right and left. You can pan, tilt, and zoom in or out. Optical zoom range varying from 26x to 18x and 12x digital zoom.

Camera Specification and Guide

Understanding your needs will help you make correct decision in choosing the right camera. Day, night, dark, light, angel, background, specific location and distance are all important to choose the proper camera with correct specifications.

CCTV Camera Resolution (Picture Quality)

Chipset of the camera provides picture quality based on number of horizontal lines it provides. The higher the TV Lines is the better resolution and quality of the image.

Standard Image Quality 380TVL to 420TVL

High Image quality 420TVL to 480TVL

Very High Image Quality 480 TVL to 570TVL

Resolution/TV Line

Resolution is the number of pixels that make up the CCD imaging area and the bandwidth of the camera circuitry. Typical entry level camera resolution is 330 TV lines, with high resolution cameras producing better than 580 lines. TVL is the number of black to white transitions that can be resolved across the image.

Lens

Lenses are measured in mm (millimeter).The bigger the number is the wider the angle is. 2.5, 3.6 and 8mm and more. Some cameras because of their design can not operate with wide angle lenses.

LUX

The measure of light is called LUX. Each LUX is equal to 1 candle light.

How to Select a Night Vision Camera

1. How far? Distance needed to capture images will determine focal length, beam angle and IR illuminator width.
2. How wide? The wider the lens, the shorter the distance.
3. Is there light at the scene? Some lighting looks good aesthetically, but is not good for image capture.
4. What is the environment at the scene? Is the camera going to exposed to vibration, heat , saltwater, etc.

How IR Illumination Works

Without any light source in some cases, cameras can clearly capture crisp images for use at night, potentially opening up a whole new market. CCTV cameras have always been primarily a commercial offering, but lower cost bullet and discrete dome units are well suited for residential applications.
“IR illuminators offer the camera the ability to capture the wavelength of light that is not visible to humans.

audio video home theatre installation blog, security camera cctv installers blog, home theater installers blog, Los Angeles plasma LCD installers blog, phone intercom installation blog, home office automation blog, DirecTV installation blog, Los Angeles free to air satellite installers blog,
projector installers blog

Security Camera Installation

Audio Video Installation Los Angeles

security camera system CCTV Beverly Hills

security camera system CCTV Los Angeles

security camera system CCTV Southern California

security camera system CCTV Malibu

security camera system CCTV Woodland Hills