AnsweredAssumed Answered

HP 89441A ...Calibration Failure at start up???

Question asked by FM on May 28, 2008
Latest reply on May 29, 2008 by FM
At power up, the vector analyzer perform the calibration.  At the end of the calibration I have this message:

Calibration Failure…Check front panel connection.

Also, at the top right corner within the graticule, I have this message "CAL?"
The "Auto-zero" is perform with no error message.

How can I fix this problem?
I have the latest software up-grade.

Thank you