First of all, you should always put the address of any property your considering purchasing into the NBN website to see if or when NBN is available and more importantly what type of NBN the property has available to it. You may also want to spend a small amount of money and have a professional survey done for any property your considering buying.
If you have a choice between a property that has fix wireless vs one that only has satellite then I would recommend avoiding satellite, going forward these properties may become increasingly undesirable and property values are already being influenced by the type of NBN connection available. Plan costs are much higher on satellite and large data plans are not available, not to mention latency which makes general web surfing feel sluggish and frustrating. If you have a business to run on top of all of that then well, good luck with that!
If you must choose a property with only NBN satellite as an option you may still have a few options. Is the property within 13km of a NBN tower? if so then it may be possible to build a shed somewhere on the property that has good line of sight to the tower. You will need to provide 240v power (solar inverter is a possibility) and a way to send data back to where it’s needed (WiFi link or even underground cable). Alternatively, people are also building tall towers, however this is tricky and will require a lot of planning as OHS will require you to provide safety equipment such as a scissor lift to allow the NBN contractor access to the top of the tower, also the NBN contractor will need to have the required training. Also note that if something goes wrong down the track, you may need to bring in the equipment again at your expense.
If your property is outside the 13km radius of a tower then as far as NBN is concerned satellite is all you will be getting. Almost everyone who has requested a technology switch from NBN has borked at the cost and going from satellite to anything else is the costliest of all. So you will likely be stuck with Satellite, unless a future government wants to spend more money to shift more people from Satellite to Fixed Wireless. While that may well happen as the satellite is loaded up and performance drops to near Interim Satellite levels, even if that happens is your area a good target for this? That depends on how many neighbour’s you have around you and the topography of the area. If you’re in the middle of nowhere with no one around you then no you will be stuck with satellite.
So, your stuck with satellite as far as NBN is concerned, what other options are there? First, I would look for either the closest Vodafone (yeah, I know right) or Optus tower. Optus and Vodafone generally provide better data rates than Telstra so they are worth investigating. Most likely you may find an Optus 4G tower with 700Mhz, 700Mhz has been tested up to 100km away but it still comes down to good line of sight, good equipment and finding a tower with not too much congestion. Ideally you would want to target a higher band, 4G 1800Mhz would be the perfect band to target as your setup can still fall back to 700Mhz if required. 1800Mhz will not travel as far as 700mhz and is more prone to loss though things like trees, but if you can get a 1800Mhz, 2100Mhz or 2600mhz signal at all then thats a good sign and what you end up with may be more reliable than just relying on a single band. Also, If Optus goes down there is probably a Telstra signal not too far away, so it might be good to have your mobile on Telstra and your home Internet on Optus for added piece of mind. If both those services are coming from a single tower however then you may still want to consider NBN Satellite as an alternative. Optus does have some sites that have Satellite backhaul, these sites have little advantage over NBN Satellite other than being an alternative network in the event of NBN going down. These can be identified by having a 3G only signal in remote places.
No Optus or Vodafone? Well now your options are really becoming limited. So, it’s down to Telstra, and likely Telstra 3G, if that’s all that’s available you probably still want to consider NBN Satellite as a backup at the very least. Telstra data rates are not so great (although unlimited data is now an option), but general web surfing on 3G will still be much faster than Satellite, although Satellite will work fine with applications like Netflix, provided you have the data plan for it. If you can get Telstra 4G700 then great you can likely fall back to 3G850, but again it all comes down to line of sight, your equipment and congestion in your area and that can change all the time. If Telstra goes off line then you may be stuck with nothing, so I would highly recommend NBN Satellite as a backup.