GCF certification for 5G RF mmWave demodulation/CSI conformance test Anritsu has revealed that itâs 5G RF Conformance Test System ME7873NR has achieved approval from GCF for the mmWave (FR2) 3GPP TS38.521-4 Demodulation/CSI Conformance Testing. required for 5G NR RF Conformance tests. In a world first, GCF certified Anritsuâs ME7873NR Performance test for 5G NR FR2 non-standalone (NSA) mode tests implemented in collaboration with Qualcomm Technologies at the January 2021 CAG meeting. Prior to this GCF certification, Anritsu has been a key player at 3GPP RAN5 meetings, the body responsible for formulating RF Conformance test standards.