Technical Information

Tv Bracket Selection

When choosing a Bracket for a TV there are a few things that need to be considered:

• The weight of the TV.
• The location of the VESA mounting holes at the back of the TV.
• The dimensions of the VESA mounting holes at the back of the TV.
• If the wall is Brick, plaster or has metal studs.
• If the TV needs to be Ceiling mounted, on a swivel or just a standard wall mount.

The TV Manual will specify the weight of the TV without the stands and also have the Video Electronics Standards Association (VESA) information by showing a picture with two numbers like 400 x 200 for example or it will specify the sizes. The numbers shown are measured 'horizontal distance x vertical distance. All our TV brackets have a VESA guide at the back of the packaging showing the different configurations the bracket will be suitable for.

TAPS or SPLITTERS?

Are Taps better than Splitters? 

• Taps give greater control over signal levels and higher isolation, depending on where what values are fitted.
• Quality Splitters can be used to create effective and simple TV signal distribution Networks.
• Combining Taps with Splitters in your Networks can achieve even greater isolation and better signal level balance.

WHY FRACARRO?

Fracarro Fibre Optic

• Suitable for TV and Satellite applications
• Electrical isolation between equipment for optimal performance
• Low signal loss over long distances
• Installation problems and signal quality degradation
• reduced as line amplifiers not required
• Large bandwidth ideal for Digital distribution
• Excellent linearity, well above Coaxial standards
• Pre-terminated cables eliminate splicing costs
• Resistant to water and humidity
• Broadband access in fibre is also available
• Immune to electromagnetic interference
• Can be laid with electrical cable in power lines
• Allow you to create customised interactive Networks due to return path modules

Understanding CCTV Focal Length and Field of View

• CCTV lenses are divided into either fixed or variable focus categories.
• Fixed lenses have a specific, non-adjustable focal length such as 2.8mm, 3.6mm right up to 70mm.
• Varifocal cameras have a focusable zoom range for example from 2.8–12mm, 9–22mm, or even 6–50mm.
• It is important to remember that the smaller the number - the wider the field of view. Using this chart to ascertain the required focal length is vital in capturing the image you want.
• Working out what your required field of view is and the distance from the camera, you can then select the correct focal length.
• Looking at the chart below, you can see that a 2.8mm camera has an angle of view of 81.2° at the lens, and at a distance of 5m from the camera, you will have a field of view that covers an area of 8.6m wide by 8.6m high.
• At the other end of the spectrum, a 40mm lens has a 6.9° angle of view at the lens and at the same 5m away from the camera, a field of view that is only 0.6m wide by 0.6m high.

Information for Professional AV Installers and Electrical Wholesalers Australia | Page Updated: September 2023