Reception difficulties are often the result of a weak signal from a transmitter that is too distant to deliver an adequate or reliable service. In some cases, a qualified installer can advise on ways of improving reception even in areas of marginal coverage.
Signal availability in the area
Viewers should check whether digital television signals are available in their area and whether coverage from the transmitter site is adequate. If a television service is not receivable in a particular area, first contact the relevant broadcaster who can confirm whether a television service is available in the area. Contact details for commercial broadcasters can be obtained from the FreeTV Australia website.
Obstructions to signals
There are a number of factors that might lead to poor reception of digital television services. These may include the following:
- weather conditions, which can cause digital reception to break up or ‘pixelate’
- signal obstructions, such as the immediate local terrain, foliage, buildings and trees
- an inadequate or excessive signal, or
- ‘impulse noise’ interference which may be generated by the use of household items such as domestic appliances, light switches or hair dryers.
Re-scan set top box
A first step for trying to improve digital television reception is to re-scan your tuner or set top box. It may be necessary to re-scan more than once to tune in to all available services in the area.
Antenna installation
If you experience difficulties with your television reception, it is important to use a technician who:
- is qualified in analog and digital television reception, and
- is able to measure television signal levels at residences.
A qualified antenna technician should be able to measure analog and digital television signal levels at residences and recommend ways to optimise and improve television reception. The technician should also be able to offer advice about:
- antenna selection
- positioning
- orientation, and
- choice of correct cables, connectors and distribution equipment.
Once measurements have been taken, the installer should be able to advise you:
- on which reception source is provides the optimum signal
- the best antenna location, and
- ensure the correct antenna type is used to receive the digital signals available in your area.
A list of Government Endorsed Antenna Installers is available on this website.
Further information on television reception
ABC TV reception information is on the ABC website www.abc.net.au/reception/freq/
SBS transmission information is on the SBS website www.sbs.com.au/transmissions
Community broadcast information is on this website www.dbcde.gov.au/television/community_television
The Australian Communications and Media Authority (ACMA) has published information about digital television reception that can be downloaded from the ACMA website.