Usually it’s 30sec of bars at -20db tone with your audio peaking no higher than -10db. 10sec of slate, 10 sec of black, countdown then your program. Some stations still require the setup at 7.5 even though they are excepting it digitally. That’s why as Walter stated you need to check with the station, don’t feel stupid asking them, they are usually pretty helpful and greatful that someone actually asked.