The K band and the Q band single-frequency single-polarization modes are available and a recording rate of 1024 Mbps (total bandwidth of 256 MHz) will be open for the 2018A CfP. Dual-beam mode with VERA, dual-polarization with KVN, and simultaneous multi-frequency mode with KVN will not be available for the 2018A CfP. For accurate astrometric observations, many items (antenna positions, calibrators, schedule, etc.) should be carefully considered and prepared. At present, astrometric VLBI observations with KaVA is not supported in the 2018A CfP.
Two new observation modes are available from the 2016B season; fast antenna nodding mode and 1-beam hybrid (KVN multi-freuquency sup-port) mode. Another two new observation modes are available from 2018A season; C2 mode and Wide-field imaging mode. Details are summarized in the Appendix A and B, respectively.