Datasheet
9. Marker Measurement
9.1. Marker
The marker shows as a rhombic sign for marking the trace point. Easy for user to readout the
amplitude, frequency and sweep time of each point through marker.
Key points:
Screen can show 4 pairs of marker at most, but only one pair or one single marker is active every
time.
In marker menu, you can input frequency and time by numeric keys, knob and arrow keys, also view
the readout of point on trace.
9.2. Marker Select
Select one marker from four, the default is Marker 1. Then select other parameters such as marker
type, marker trace and readout type for this marker. The enabled marker will appear on the selected
trace through the Marker Trace option. And the readout of active marker located on marker place will
be displayed in active function area and upper right of screen.
Table 2-21 Marker parameters
9.3. Normal
Normal is one of marker type, used to measure X (frequency or time) and Y (amplitude) of one point
on trace. When selected, a marker with current number will appear on trace.
Key points:
If there is no active marker, pressing this key will enable a marker at the palce of center
frequency for current trace. If there is active marker, it will be enalbled after pressing this key.
You can shift the marker by numeric keys, knob and arrow keys and the readout of current
marker will be shown at the upper right of screen.
The resolution of X-axis (frequency or time) readouts corresponds to the span, you can lower
span to get higher resolution for readout.
-30-
Parameter
Description
Default
Center frequency
Range
0 ~1.5GHz (P4130-1)
0 ~2.2GHz (P4135-1)
0 ~3.0GHz (P4140-1)
Unit
Readout=Frequency(or Period), unit is GHz, MHz, kHz,
Hz (or ks, s, ms, us, ns, ps)
Readout=Time (or 1/△time), unit is ks, s, ms, us, ns, ps
(or GHz, MHz, kHz, Hz)
Knob Step
Readout=Frequency(or Period), step=span/(sweep points-
1)
Readout=Time (or 1/△time), step=sweep time/(sweep
points-1)
Arrow Keys Step
Readout=Frequency(or Period), step=span/10
Readout=Time (or 1/△time), step=sweep time/10