Txv2 examples:
a) The transmission on-time matches the packet (equivalent to the v1 API)
b) The transmitter is started before the actual packet, and continues after the packet end. Note that it is also possible to either only start earlier or only end later. During this extra transmission time, the Tx will be treated as if it is interfering with the same modulation, carrier and power as the normal packet.
c) The transmitter is started "too late" into the packet, truncating part of the packet / preamble start.
Note that in all cases it is possible to "abort" the transmission at any point. In that case, both the packet transmission and interference generation will be stopped at that point in time.