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--- hardware:hardware.mark5c [2013/10/01 05:25]
Jamie McCallum
+++ hardware:hardware.mark5c [2013/10/02 02:50] (current)
Jamie McCallum [Mark5C Configuration]
@@ Line 51: / Line 51: @@
 ''pointers?'' works as usual.
-The time-tag of the recorded data seems to be earlier than expected - it might be that the recorded data comes from a FIFO buffer, or that there were synchronization issues with the DBBC/Fila10G. Also, note that when recording a 4 Gbps that mark5C is allegedly unable to stop a recording reliably - the data stream has to be halted at the Fila10G first.
+The time-tag of the recorded data seems to be earlier than expected - it might be that the recorded data comes from a FIFO buffer, or that there were synchronization issues with the DBBC/Fila10G. **Update** - it's more likely due to the timing inaccuracy of the Fila10G. From APEX fringe tests, it appears that it's not uncommon for offsets of up to 2 seconds (integer and in either direction) in the recorded data. Happy fringe-finding!
+Also, note that when recording a 4 Gbps that mark5C is allegedly unable to stop a recording reliably - the data stream has to be halted at the Fila10G first.