Warning/Status
Message
Description
OVN COLD
This warning message indicates that the 100 MHz
Crystal oven (or the 10 MHz Crystal oven if Option 16 is
installed) has not reached operating temperature.
Normally displayed during a cold start of the 680XXB. If
the message is displayed during normal operation, it
could indicate a malfunction. Run self-test to verify.
UNLEVELED
Displayed when the RF output goes unleveled.
Normally caused by exceeding the specified leveled-
power rating. Reducing the power level usually clears
the warning message.
EXT REF
This status message indicates that an external 10 MHz
signal is being used as the reference signal for the
680XXB.
OFFSET
This status message indicates that a constant (offset)
has been applied to the displayed power level.
SLOPE
This status message indicates that a power slope
correction has been applied to the ALC.
USER 1...5
This status message indicates that a user level flatness
correction power-offset table has been applied to the
ALC.
Table 6-3.
Possible Warning/Status Messages during Normal Operation
OPERATOR
ERROR AND WARNING/
MAINTENANCE
STATUS MESSAGES
680XXB OM
6-9
Summary of Contents for 680 B Series
Page 5: ......
Page 11: ...Figure 1 1 Series 680XXB Synthesized CW Generator...
