Technical Information

Tv Bracket Selection

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

• The TV's weight.
• The position of the VESA mounting holes on the back of the TV.
• The size and pattern of the VESA mounting holes on the back of the TV.
• The wall type - whether it brick, plaster, or has metal studs.
• The desired mounting style - ceiling mount, swivel mount, or 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