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Normally Pico Veleta data is recorded for GMVA as PV (DBBC2) data in 8 band x 64 MHz per polarization mode
was recorded with wrong polarization setup for most of the session (during C192A, C192B and the first quarter of C192C parts both polarization channels recorded RCP and LCP was completely lost). That's why the main production correlation was done with DBBC3 data in 16 32 MHz band mode rather than usual 8 64 MHz per pol. Because DBBC3 is still in the comissioning stage, certain hardware problems were detected -- phase instability and small amplitude insonsistencies for different boards. To compensate this, additional per band delay corrections were applied during the correlation, see details here.
