On December 21, 2011, we have tracked E6 B/C signal from all launched Galileo satellites, using TRE-G3T-E E6-band capable receiver. Article, which explains how these codes were found, is here.

Graphs shows SNR and "code-minus-phase" combination of svn #11 (sat #81 on graph), svn #12 (sat #82) , svn #19 (sat #89) and svn #20 (sat #90). "C/A" stands for E1, "P2" for E5B, "CL2" for E6, "L5" for E5A.