For a normal live stream in Full HD quality, you only need 15-20 Mbit/s upload speed, ideally via a cable and not via WLAN. As a backup, we always have an LTE router with us.
If you are not sure whether fast internet is available at your location, we can also find out. For large event halls or trade fair grounds, there is always the possibility of booking temporary Internet connections. We will be happy to advise you!