You can access TG8 on TS1 (used for regional QSOs) from a hotspot by using
TG x0008
where x is the TG8 region number.
Note that you are not restricted to the TG8 in your area – you can access them all if you want to.
Program the TGs as follows:
10008 = VK7
20008 = All Sydney, nth NSW and Orange
30008 = HighRange, Goulburn, Yass, Bombala and Canberra
40008 = N VK3: Bendigo, Shepparton, Mt. Wombat, Rennies Hill
50008 = Melbourne and S VK3
60008 = VK4 (apart from FNQ)
80008 = Central Coast and Hunter Valley NSW