Anritsu MP8931A - Clock Display Section; Elapsed Measurement Time Display Section; Interface Display Section; Measured Results Display Section

3.4 Measurement Screen
3-5
3.4 Measurement Screen
When the MP8931A starts up normally, the measurement screen shown
below appears. It consists of three blocks.
Interface Display Clock display Interface Display Clock display
Measured results display
Measured results display
Elapsed measurement time display
Remaining measurement time display
3.4.1 Interface display section
Displays currently selected interface (NRZ, DVB-SPI or DVB-ASI.)
When NRZ interface is selected, output level is also displayed. The ex-
ample on the next page shows that the NRZ interface is selected and
ECL level is set.
3.4.2 Clock display section
Displays whether external or internal clock is being used. When using
internal clock, displays the frequency. The example on the next page
shows that internal clock is used and 155 MHz is selected for frequency.
3.4.3 Measured results display section
Displays the error rate, number of errors/total count or Over Flow.
(1) Over Flow display
The “Over Flow” display blinks when the total count becomes more
than 1.00

10
15
.
(2) Measured results display conditions
When overflow occurs or the number of measurement bits is being
set, results are displayed at the time when overflow was detected or
the number of measurement bits was exceeded. When “Sync Loss”
is detected while “Auto Sync” is set to ON, re-synchronization is es-
tablished and the measured results are cleared.
The results just before Sync Loss detection are displayed until
re-synchronization is established and the measured results are
cleared.
3.4.4 Elapsed measurement time display section
Displays the time that has elapsed from the start of measurement.
When Repeat is set to On, the elapsed time for each interval (time period
for each repetition) is displayed.
When the elapsed time exceeds 999 hours 59 minutes 59 seconds, the
display is reset to 0 and counting continues again.