Wednesday 20 August 2014

Make Safety a Number One Priority and Install a Security System in your Adelaide Home

You safety is important, no matter where you live or what you do. Security systems are increasingly necessary in Australian society, as we are becoming busier and less engaged at home. In Adelaide installing CCTV security systems are a great idea to ensure piece of mind while you’re at the office or busy running errands. 

Did you know that in Australia, “More parents now work longer hours and are often working when their children are at home?” The latest Australian Bureau of Statistics (ABS) data show that around 30 per cent of men and 11 per cent of women are working at 7am in the morning, with one in six men and one in seven women working at 7pm in the evening. The same appears true at weekends, for both men and women. Indeed, a greater proportion of women work between 6pm and 9pm on weekends than on weekdays. This data comes from a University of Canberra study on how Australians spend their time released in 2011 by AMP financial services. 

The ABS Time Use Survey divides the activities on which people spend their time into four broad categories - necessary time, contracted time, committed time, and free time (ABS 2010). Working weekends are more commonplace, meaning at least one parent may be at work at times during the day or week that clash with when their children are at home. ABS data surveys from 2006 place Australians at the shops of Saturdays “engaging in retail therapy or stocking up on necessities forth week ahead. On average, an hour is spent purchasing goods and services on a Saturday, compared with 46 minutes on a weekday and 37 minutes on Sundays. Sundays are all about recreation and leisure… Australians spend an average of around five hours on recreation and leisure each Sunday, compared with just over four hours on a Saturday and 3.5 hours each weekday.” 

CCTV cameras might sound fancy and perhaps altogether unnecessary but are proving useful devices for many residents. CCTV or circuit camera systems are a simple way to keep an eye on things at home.  Whether you are away on business or just out shopping, you can watch what’s going on in your house. A CCTV system is installed in conjunction with an alarm system, which gives you the flexibility of checking the premises remotely if there has been any disturbance in the home or office. Closed circuit camera systems use HD colour infrared cameras. These cameras illuminate the area covered at night, allowing you to see what’s going on even in total darkness. The cameras are connected to a digital video recorder and record 24 hours a day, 7 days a week. 

What’s brilliant about these clever machines is that they are connected to the Internet. This means that you can remotely access your monitors on any Smartphone device! You might find yourself working late one evening and you want to check on how your children are getting on with their homework… You login to your CCTV system only to find that your two little bundles of joy are getting up to mischief. There faces are all shiny from the sugary goodness they extracted from your pantry and they have started throwing a soccer ball across the lounge room. Thanks to your security system, you can easily phone home and deter your sugar high children with sheepish voices from breaking a window or getting into a fight. Clever mommy and daddy. 

If you are interested in a security system for your home, contact Advanced Antenna & Security, your CCTV professionals in Adelaide. They can provide you with a wealth of information and advice. Give them a call on 0417 868 103 or visit their website http://advancedantennaandsecurity.com.au/. 

What the Yagi is an Antenna in Adelaide

There is nothing more frustrating than sitting down to watch your favorite television show just to realise that the signal is down. If the screen is fuzzy, delayed or gone altogether, the antenna is probably the source of your frustration. In Adelaide, antenna installation and service specialists are unfortunately at the mercy of our four seasons in one day. Spontaneous wind gusts and surging rain patterns can easily disrupt signals emitting from your rooftop antenna.   

In addition to these natural inferences, Australians are experiencing a digital transition phase. You may have heard about the campaigns involving the 2013 cut off from analogue to digital, and if not, then you might be experiencing some serious picture faults and disruptions. The upgrade to digital television means that television owners will either have to purchase a digital television or a new set top box with this capability. At this stage it is important to consult a technician. They will be able to advise you on what equipment you will need, what needs to go and what can stay. You don’t want to buy anything that isn’t suitable. 
When it comes to your antenna, however, if you own a television aerial or antenna that is on your roof and doesn’t qualify as a dodgy bunny-ear device, then you will most probably not have to worry about upgrading it. Not many people realise this but the only difference between an analogue and digital antenna is the mathematical encoding system used to modulate the RF carrier signal transmitted to your telly. The actual electromagnetic wave itself is analogue.

To describe a noticeable difference between the two systems, it is a characteristic of analogue TV that a weak signal will cause the picture to degrade or get progressively worse over time but is still usually watchable for a long time. The digital TV, however, needs a good constant signal, otherwise it tends to break up and become unwatchable very quickly. CSIRO’s Dr Stuart Hay explains. "Antennas made for analogue TV signals work just as well for both digital and high definition signals. It's incorrect to claim that you need a special antenna." Despite this, ABC Science outlines some of the key factors to a good working antenna. The shape and size of the antenna does make a difference to your reception. Depending on where you live, your antenna will be mounted either horizontally or vertically based on the signal's polarity, the axis in which the wave is vibrating.
 
Types of Antennas include Dipoles: 

simple rabbit ear devices that receive signals evenly in all directions, known as called omnidirectional.  LPDA: log-periodic dipole array antennas are used for VHF TV signals, consisting of several dipoles arranged in echelon to make a very wideband antenna. "Vee-shaped LPDAs have slightly higher gain for some channels while straight shaped LPDAs (where the elements are at 90 degrees to the boom or spine of the antenna) are good at cancelling out interference", says Hay. Reflector antennas: work by reflecting signals from a large conducting plane which acts like a mirror Paraboloid reflectors: are round wok shaped satellite dishes, small ones face north for pay TV while larger ones face northwest for satellites and programming purposes Yagi: the latest in antenna technology “Yagi's have several elements arranged in echelon and connected by a long boom,” says Hay for ABC Science. The longest element is called the reflector, next to which is the driven element. The remaining shorter elements are called directors and the more directors you add, the higher the gain.

Antenna installation in Adelaide is only a phone call away. Contact Antenna & Security on 0417 868 103 or visit their website http://advancedantennaandsecurity.com.au/ for a wealth of information and advice on home installation services.