HP 8530A User Manual page 171

Common Error Messages
E
\ENCODER NOT FOUND"
\ENCODER OFFSET ANGLE ALREADY SAVED"
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
in the same sweep
SAVE OFFSET
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
CLEAR OFFSET SAVE OFFSET
F
\FREQUENCY CONVERTER IS TOO HOT!"
will not
I
\IF OVERLOAD"
In Case of Diculty 9-7