single story or multiple, easy access and clear of obsticles towards the Towers.
There at least 5 well known and quality brands available and although the cheapies look the same, the metal used in the elements can be flimsy and the plastics wont last long in the sun and some tend to corrode in where you connect the co-ax cable.
Your too far in for salt air corrosion but your in a fairly heavy industrialised part of Sydney so there will be airborne corrosion never the less.
Just think of standing on your roof for the next 10 years in direct temps of 50+C in summer to those gale force winds and of course it never rains in Sydney, it just bloody Pours.
Just look at what is commonly used around you but being in Sydney unlike the country you cant go knocking on doors to see how their reception is so you just have to take pot luck there.
The only thing I would try is to cross price the brands at different dealers.
MTV is the best to advise on this but I think you still need to buy a combined VHF/UHF antenna for Sydney coverage unlike the country where its mainly UHF now.
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