Digital Broadcasting Australia
Installer FAQ – Antennas
Isa new antenna required to receive digital television?
Most people will haveexcellent digital reception for their digital TV set from their existing antennaprovided it is in good repair and is connected with good quality coaxial antennacabling.
In developing the digitalchannel plans, the Australian Broadcasting Authority (ABA) has given particularattention to ensuring that, as far as possible, consumers would not be requiredto purchase an additional receive antenna. In some areas, however, thismay not be possible.
Therefore it is very likelythat when digital transmissions start in a particular area the viewer will beable to receive both the new digital services and their present analogtelevision without the need to upgrade or replace their antenna.
Some very old VHFantennas in metropolitan areas may need to be re-tuned or even replaced to receive digital televisionon channels channels 11 and 12.
However, if the viewercurrently receives good analog reception there should be no reason to rush outand buy a new antenna.
Whichfrequency bands should antennas be capable of receiving?
Analog anddigital television services will use the following frequency bands:
The bandsused and therefore the antenna required depend on which transmitters serviceyour area.
Whatchannels have been allocated to my local television services?
The ABArecommends attempting reception of digital signals with existing antennas todetermine whether it is necessary to replace or upgrade the antenna.
The detailsof the channels allocated and likely transmission commencement dates will bemade available on this web site, as the ABA finalises its planning.
In someareas, the ABA has had to plan more than one transmitter – a main transmitter(high power) and a secondary transmitter (low power). The transmitterproviding the better reception for your area will determine the antennarequired.
Inmetropolitan areas, for reception from the main transmitters (high power), antennas should be capable of receiving bands 1(for analog services only) and bands 3 & 4 (for analog & digitalservices).
Inmetropolitan areas, for reception from the secondary transmitters (low power), antennas should be capable of receivingbands 4 & 5 (for analog & digital services).
In regionalareas, antennas should be capable or receiving band 4 and band 5 and in somecases band 3 (dependingon the frequencies allocated to the local television services).
In someareas multiple bands may be used requiring multi-band antennas or multipleantennas depending on the channels currently used in a particular area.
Whatchannels will be used for digital television and datacasting in particular areas?
When theAustralian Broadcasting Authority (ABA) has finalised their digital televisionchannels plans, Digital Broadcasting Australia will publish the channels madeavailable in each area of Australia on the DBA web site www.dba.org.au.
The ABA hasa planning objective for all digital free-to-air television services to be inthe same frequency band as the current analog services in each area ofAustralia.
So whereverpossible, if an analog channel is currently in the VHF band then so will theequivalent digital channel.
The following is an example of the SydneyTelevision Channel Plan.
Exampleof the Sydney Television Channel Plan
New Seven DTV
New Nine DTV
New Ten DTV
New ABC DTV
New SBS DTV
Wheredo I find out more information on digital television installation issues?
This sitewill be updated as new information comes to hand. To stay informed send anemail to [email protected] and you will beemailed when the site has been updated.
AInstallers Handbook for domestic antennas is currently being prepared to assist Australian installers with antennainstallations and cabling to get the optimum reception of digital signals. The handbook is expected to be available in mid-November 2000.