Fig. 3From: VLBI and GPS inter- and intra-technique combinations on the observation level for evaluation of TRF and EOPFrequency stability of GPS receivers on the basis of the calculated MDEV statistics for four GPS stations. The figure includes the badly performing receivers (WARK, BRFT, NYAL) and a well performing clock (MATE), which represents a general performance of other GPS receivers used in this studyBack to article page