JD700B Series User’s Guide
657
the active one now.
3
Do one of the following:
To
Select
Trace Legend
Clear current data and display with new
measurements
Clear Write
W
Display the input signal’s maximum response only
(unlimited or for a certain amount of time)
Max Hold
M
Display the input signal’s minimum response only
(unlimited or for a certain amount of time)
Min Hold
m
Capture the selected trace and compare traces
Capture
C
Load a saved trace
More (3/3) > Load
L
Hide the displayed trace
Trace View > Off
F
To set Trace 1, Trace 2, and Trace 3 to Clear
Write, Max Hold, and Min Hold (only available in
Dual and Quad spectrum/spectrogram mode).
More (2/3) > Trace
Set Max/Min Hold
Remove all the traces and initialize the trace
settings
More (2/3) > Trace
Clear All
NOTE
For the
Max Hold
and
Min Hold
, your instrument compares newly acquired data with the
active trace and displays larger maximum values or smaller minimum values on the
screen. You can set it to
Unlimited
to hold and view maximum or minimum data or
specify a certain amount of time up to 60 seconds by using numeric keys or rotary knob.
4
To select the detection option, select
More (1/2) > Detectors
, and then do one of the following:
To display
Select
Random noise better than the peak without missing signals
Normal
The highest value in each data point
Peak
The root mean squared average power across the spectrum
RMS
The lowest value in each data point
Negative Peak
The center value in each data point
Sample
5
Optional
. Select
More (1/2) > Trace Info
, and then select the trace number to view the trace’s
parameter setting information stored at the time of the measurement or
None
to hide the
information display.
6
Optional.
If you have the two traces T1 and T2, you can perform trace math. To view the power
difference between the traces, press the
T1 – T2 -> T5
or
T2 – T1 -> T6
soft key.
The result is overlaid on the screen along with the second Y-axis.
NOTE
To be able to load a trace, the trace to be overlaid must be saved in the same
measurement mode and frequency setting as the current measurement.
Setting measure setup
Procedure
1
Press the
MEASURE SETUP
hot key
2
Press the
Link Rate
soft key to set the line rate of the OBSAI RP3 interface between the BB and
the RRU.
3
Select the RP3 line rate option from the choices:
768 Mbps
,
1536 Mbps
,
3072 Mbps
, and