It is also not clear to use which*.srec file for Radio testing. I tried "MAC 2006 ZTC 115200 KW24D512-USB ASP_Radiotest.srec (as shown below). But I still dont see any signal at the SMA connector of Freedom Board.
It is not possible see the file, could you please try again.?
If you want to make a Radio testing, you can check the next link, the option build and run.
FRDM-KW24D512|Freedom Development Platform|Kinetis|NXP
Let me know if you have problems.
Could you please check the next document?, Quick Start, USB-KW24D512
Let me know, if you upload another example and the problem is the same