Message 392

Message

"392. External 10 MHz reference not found. Infiniium has reverted to the internal reference."

Description

This message occurs when an external 10 MHz clock signal is lost and the oscilloscope reverts to using its internal clock signal for the time base.

If time base synchronization with an external instrument remains important, you must troubleshoot the reason why the external clock signal was lost. The oscilloscope's online user's guide describes the specifications that external clock signals must meet.