It’s not an easy question to answer as it would really depend on which area in Australia you are residing in and which broadcast tower you are receiving your Free to Air signal from.
In Australia Free to Air TV is broadcast through either VHF (very high frequency) or UHF (ultra high frequency) and the antennas used to pick up these broadcast signals are quite different from each other.
In Australia VHF is assigned to the VHF Band III which covers channels 6-12 and UHF is assigned to both UHF Band IV and V which covers channels 28-51.
90% of Metro Melbourne is covered by the broadcast tower at Mount Dandenong which transmits Digital TV through VHF.
However the other 10% of Metro Melbourne are covered by a number of other smaller broadcast towers, such as the Bourke St Tower and Upwey.
The Bourke St tower covers many inner city suburbs such as Yarraville and North Melbourne where the signal from Mount Dandenong is blocked by the large high rises in the city. The Bourke St tower transmits in UHF and therefore for these inner city suburbs a VHF antenna is unsuitable for Digital TV Reception.
In areas such as Upwey and parts of Ferntree Gully there is no line of sight to the Mount Dandenong tower (despite it’s proximity) and they therefore need to obtain their Digital TV Signal from another of 3 towers situated in Upwey, Ferntree Gully and Selby.
Another issue that we can come across is distance from the nearest broadcast tower – the further away you are – the higher gain antenna you’ll need often used in conjunction with a Booster or in technical terms a Masthead Amplifier.
However those living within a closer proximity to the broadcast tower can have issues as well with the signal coming in too hot. These communities will quite often need an attenuator to lower their signal levels to prevent pixilation and TV reception issues.
Matt from Jims Antennas Moana was called to help a customer who was experiencing a variety of picture problems on all of the TV sets in her home.
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