Agilent Technologies ENA Series User Manual page 51

4-6. External Reference Signal Phase Lock
When the frequency reference signal is input to the "10. External Reference Signal Input
Connector (Ref In)" on page 56 on the rear panel and the measurement signal of the
E5070B/E5071B is phase-locked to the reference signal,
ExtRef
ExtRef
NOTE Even when the "9. High Stability Frequency Reference Output Connector (Ref Oven,
Option 1E5 only)" on page 56 and "10. External Reference Signal Input Connector (Ref
In)" on page 56 are connected, phase-locking may not occur immediately after power-on in
a low-temperature environment. (The "ExtRef" display remains gray, not blue.) In such a
case, wait a few minutes until the instrument has warmed up and the "ExtRef" display
turns blue.
4-7. Warm-up Status
Ready
Ready
4-8. Service Mode
Indicates the service mode status.
SVC
SVC
SVC
4-9. Date and Time
Displays the date and time generated by the internal clock. The display format is as
follows:
YYYY-MM-DD HH:MM
You can turn the date and time display on/off by manipulating the keys:
Setup
Chapter 2
(displayed in blue) Measurement signal is phase-locked to the external
reference signal.
(displayed in gray) Measurement signal is not phase-locked to the external
reference signal.
(displayed in blue) Shows that warm-up of the instrument is completed.
(displayed in gray) Shows that warm-up of the instrument is not completed.
(displayed in blue) The E5070B/E5071B is in service mode, which is used
for self-diagnosis and repair of the E5070B/E5071B.
Therefore, measurement performance will not be
guaranteed according to the specifications. If, under
normal use, the system remains in the service mode and
does not return to normal operating mode, there is a
possibility that the instrument is out of order.
(displayed in red) An abnormal condition has been detected inside the
E5070B/E5071B. The unit may be damaged. Notify the
Customer Contact listed at the end of this manual or the
distributor from whom the unit was purchased.
(displayed in gray) The E5070B/E5071B is in normal mode.
YYYY
: Month
MM
: Day
DD
HH:MM
- .
Show Clock
Overview of Functions
Screen Area: Names and Functions of Parts
is displayed in blue.
ExtRef
: Year (AD)
: Time (0:00 to 23:59)
-
Clock
45