OH setup AIDA external clock using Tektronix AFG3102 - settings as follows
CH1 ON - amplitude +5V, phase 0n deg, offset 0V, frequency 50.000000MHz
JA setup DTAS/BigRIPS clock using Tektronix AFG3102 - settings as follows
CH2 ON - amplitude -0.8V, phase 0n deg, offset 0V, frequency 25.000000MHz
Unfortunately the AGF3102 was set to CH1 frequency = CH2 frequency and this changed the AIDA external
clock frequency from 50MHz to 25MHz.
This stopped the DAQ. Interestingly it was possible to Resync successfully and *all* system wide
checks were OK *except* Check Clock Status which produced errors - see attachment 1.
CH1 & CH2 now set to 50MHz and 25MHz respectively.
AIDA DAQ now running OK. |