Terra, Corey
PI Mode #27 was a bit touchy this evening. After two locklosses, talked with Terra. It's frequency was 14039.5Hz. The original filter being used was 14038.5Hz. We ended up switching to one a little closer: 14040Hz.
So for this current lock, we
- Stayed at DC Readout for atleast 15min after the PI Mode lockloss.
- Once PI Mode#27 rung up, we adjusted the phase. Could clearly saw positive and negative phase values.
- From 90degrees went as far as -30 & ultimately settled on 60deg & we now look good.
Note For Operators After a lockloss due to a PI Mode:
- Confirm the filter frequencies match with the actual mode seen on DTT
- After the lockloss, stay at DC Readout for atleast 15 min to allow the PI Mode to settle down.
- Also check that the mode is not visible in DTT, before moving on from DTT.k
OK, off to cook supper!