At roughly 10:30 on Tuesday, the ADCP on the NSIF started to include garbage characters in the data file. It is intermittent, and there are periods where data is still coming through. This could be a low battery, or something else. In an attempt to remedy it, the voltage supplied to the ADCP has been increased to 24V. Update: The garbage continued to come through after the voltage was changed. It could be a suspect cable, or loose connection, rather than a battery issue.

Id: 931 By: michaesm
Flag: not_operational Exclude: No

ADCPT started receiving/generating random break commands right after deployment. Interventions at the time were unable to resolve, but the system should still be collecting data. The problem could have been caused by the DCL sending erroneous commands. Telemetered data no longer flowing to the system. Data should be available upon recovery.

Id: 1239 By: michaesm
Flag: not_available Exclude: No

Started to see evidence of random binary encoded data in the ADCP record. In the past, this has been evidence of electronic noise on the serial lines connecting the instrument to the data logger adversely affecting the behavior of the instrument. We have disabled the data logger port for the remainder of the deployment to minimize the chance of any further disruptions to the ADCP.

Id: 1553 By: wingardc
Flag: not_operational Exclude: No

Started to see evidence of random binary encoded data in the ADCP record. In the past, this has been evidence of electronic noise on the serial lines connecting the instrument to the data logger adversely affecting the behavior of the instrument. We have disabled the data logger port for the remainder of the deployment to minimize the chance of any further disruptions to the ADCP.

Id: 1554 By: wingardc
Flag: not_operational Exclude: No

Started to see evidence of random binary encoded data in the ADCP record. In the past, this has been evidence of electronic noise on the serial lines connecting the instrument to the data logger adversely affecting the behavior of the instrument. We have disabled the data logger port for the remainder of the deployment to minimize the chance of any further disruptions to the ADCP.

Id: 1555 By: wingardc
Flag: not_operational Exclude: No

We are experiencing an intermittent failure of communication between the systems on the NSIF and the buoy. While the systems on the NSIF are operating, due to a change in the telemetry system, only a finite backlog of data is telemetered to shore. As a result, when communications are restored, some of the data backlog may be missing and there may be gaps in the record.

Id: 2183 By: wingardc

Due to a bug in the mooring telemetry system, data during this time range was not telemetered to shore. It was recorded on the mooring and instruments and will be available in the recovered data streams.

Id: 2182 By: wingardc
Flag: not_available Exclude: No