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Posts Tagged ‘consumer electronics’

Solve Your CCTV Problems With A Security DVR

December 5th, 2009 No comments

Security is something that is essential both in your workplace and at home, although up until now there have been a few glitches that needed ironing out. Now you will find that you are able to get the amount of security you need no matter the size of your establishment, plus you will find that there are many other benefits also to using a security DVR (Digital Video Recorder).

The first and most obvious reason why people choose this kind of recording system is because it does not require any tapes in the way that a VHS recorder would, this means that you are over time able to save money and not have to worry about the security records being either misplaced or damaged.

You will never again have to keep checking to make sure you have enough tape left in order to record for the amount of time you need. You will be able to leave the DVR recording for days at a time without having to worry about recording over the previous recordings. This will mean that if you have missed out on something that is important then you have the ability to return back to that spot easily and not kick yourself because the recording has been recorded over or that the VHS has stopped running as it is full. This is useful for those whose business is closed over the weekend or when you are away on vacation.

When you choose a DVR you can be sure that the quality of any recordings and playback will give you excellent clarity which means that on a technicality of poor picture the criminals will not be able to run free as they have done in the past. No matter how many times you have to record over your previous recordings you will find that the new images still retain their quality which is something that cannot be said for VHS.

You have the benefit of the DVR’s being accessible even when you are not in the same building that they are located. The reason for this is that many now have network ability with assignable IP addresses which allows you to get access to the recordings from anywhere that you are able to get access to the internet.

Even larger establishments can benefit, and they will be able to save on the amount of space that is usually taken up with recording equipment and storage as with only one DVR you can if needed add 16 cameras or more and still not lose any quality as you may have done with other security forms. This will ensure you get to see every corner of the interior and exterior of the building you need to and record the information without having to compromise on the little space you may have.

Of course saving money long term is one of the great aspects that will attract many people to purchase a DVR but the fact you are able to have all the CCTV security you need with one machine is also of benefit to many people.

Whether it is your home or business that you need to keep a watchful eye on you can be sure of the peace of mind that a DVR is able to offer you and you will feel confident that if anyone does enter your property or land without prior permission there is a better chance that they will be caught.

About the Author: Mike Ward is a technical advisor for Protection Depot, a leading distributor of digital video recorders and security cameras. For more information about security cameras, please visit Protection Depot.

Plasma TV Review

October 2nd, 2009 No comments

The plasma television is a relatively new type of television, with a flat screen display. It works by having a mixture of different noble gases in small compartments behind a panel of glass. The plasma TV derives its name from the reaction in which these noble gases are turned into plasma, which emits light and forms the display you see. Plasma TV’s are often compared to LCD’s (liquid crystal displays), another type of flat screen television that uses liquid crystals in front of backlighting or fluorescent tubes to produce images.

Plasma televisions (and flat screen TVs in general) are extremely easy to handle. Due to their very nature, plasmas are flatter than traditional televisions (also called CRTs) and thus, are lighter as well. Currently averaging 5 inches in width and 100 pounds, their size will soon be reduced to an inch in width and 45 pounds. This lack of bulk has heralded in a new era of television placement; consumers can now mount their plasmas on the wall without worrying about ruining the wall.

Flat screen televisions cover a range of much higher resolutions than do traditional televisions. High definition plasmas and LCDs have resolutions from 1024×768 pixels per square inch to 1920×1080 pixels. The ceiling of resolution for CRTs stands at a mere 480 lines, providing a much more muddled picture than plasmas or LCDs do.

Plasma television manufacturers boast a lifetime of up to 60,000 hours for their televisions, compared to a CRT television’s life span of at least 5 years. Which is better? Depending on how much a plasma is turned on, its lifespan can range anywhere from 7 years (turned on for 24 hours a day, 7 days a week) to 55 years (turned on for 3 hours a day). The lifespan of a plasma TV is significantly greater than that of a CRT TV.

Plasma televisions have both a better color ratio and more contrast than LCDs. For plasma TVs, each pixel can virtually be turned off to produce truer blacks. However, LCDs use a backlight, which will shine through the “black” pixel and damage the contrast quality. CRT televisions have the best contrast, but both plasmas and LCDs surpass them when it comes to color reproduction.

The image of both LCDs and plasmas is comparable when viewed directly in front of the screen. However, plasma televisions have a wider viewing angle than their counterparts. Backlighting causes this problem in LCDs; the image on the screen degrades as the viewing angle increases. Plasmas can be viewed from the sides or top and bottom.

Many worry about the possibility of burn-in images on plasmas. This occurs when a still shot is shown on the screen for too long. Afterwards, a faint outline or trace of the image may still be visible on the plasma’s screen. However, this should not be a serious problem with newer models, as manufacturers have worked to eliminate the burn-in effect.

Plasmas also have virtually no size limitations; depending on a consumer’s budget, plasma screens can go up to any size. LCD and CRT televisions, on the other hand, are confined to approximately 40 inches diagonal.

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