VIAVI TestCenter: Not all the valid ETSI channels are supported on DFS testing.
Knowledge Base - FAQ
When we try to set up a Radar-Signal Generator test using a valid ETSI channel, such as 116, the Spirent TestCenter Application will display an error message stating the channel is not supported.
Channel: 116
is not within the supported channels: 36,40,44,48.52,56,60,64,100,104,108,112.
N/A