This section contains articles about how to troubleshoot your instrument. This includes communication issues, problem during data collection and interpretation of suspicious data.

• How to identify and reduce electrical noise using spectrum analysis
• I have an old version of the Aquadopp, AWAC and Vector Gen 1 instrument, which firmware should I use?
• What is the latest firmware for my Aquadopp, AWAC and Vector Gen 1 instrument?
• How do I take care of my connectors?
• What should I check before I deploy my instrument?
• Deployment file issue
• How much current does my instrument draw?
• How much torque should I use on my endbell screws?
• What is the basic termination for RS232 and RS422 Nortek cables?
• How do I use a loopback test to check my cable is working?
• How can I calculate voltage drop over cables?
• How do I test my midlife cables?
• How do I connect to my Midlife instrument?
• Why can't I connect to my Signature/DVL after a FW upgrade?
• How do I download a support file from my Signature and DVL?
• My instrument is not communicating. What should I do next?
• Do you have any recommendations on how to clean the instruments and how to prevent growth (biofouling)?
• Do I need to factory calibrate Nortek instruments regularly?
• My software versions are conflicting and causing a configuration error. What should I do?
• What can I do when I receive an error message when deploying my Signature?