Unwanted retransmission in Packet-based Digital Link Example

[Maximinus]

Hello, I have question about Packet-based Digital Link Example for USRP ( ttps://decibel.ni.com/content/docs/DOC-18801. )

Is there a way to get rid of retransmission of packets here? Setting all "packet repeat" controls to 0 does not work. Removing these controls does not work either. Is there a way to change something in this example to send packets only once, without retransmission?