The Radio measurement log can be enabled by clicking on configure reports in the top ribbon > Logs > Select LTENR Radio measurement log as shown below.

The log file can be accessed from the Simulations Results Window under the drop-down "log file" in the left pane.

The log file is shown below.

1. NetSim 5G overview: https://tetcos.com/5g.html
2. Detailed documents: See the 5G manual in https://tetcos.com/netsim-documentation.html