Coverage Maps Notes
Coverage maps are only available where they are supplied by the broadcaster which owns the transmitter.
The ABC is by far the best with coverage maps for every transmitter. SBS has coverage maps but do not seem to cover all transmitters.
Oz Digital TV has not been able to find publicly available coverage maps for any of the commercial networks. Keep in mind that a commercial network is generally transmitted by local broadcasters, so the network holding company would probably not take responsibility for providing coverage maps for all of the transmitters on which it's content is broadcast. For example wikipedia says this about the availability of the TEN network:
Ten is broadcast in metropolitan areas via Network Ten owned-and-operated stations, these include TEN Sydney, ATV Melbourne, TVQ Brisbane, ADS Adelaide, and NEW Perth. Channel Ten programming is also carried into other areas of regional Australia by various affiliate networks and stations including Southern Cross Ten, Southern Cross Television, Tasmanian Digital Television, Mildura Digital Television, Darwin Digital Television, Ten West and WIN Television.
http://en.wikipedia.org/wiki/Network_Ten#Availability
If you are aware of a source for coverage maps for any of the commercial networks please Contact Us.