Datasheet

3.5. CF Step
Set the CF step. User can modify the center frequency by fixed step continuously switches the
channel to be measured.
Key points:
 Setting for CF step could be “Manual” or “Auto”. In “Auto” mode, CF step is 1/10 of span for non-
zero span, and equals the RBW for zero span. In “Manual” mode, user can input data by
numeric keys.
 After setting of appropriate CF step and center frequency, user can switch the measured
channel with specified step by Up/Down keys in order to sweep the adjacent channels manually.
 You can modify this parameters by numeric keys, knob, or arrow keys.
Table 2-4 CF Step
3.6. Signal Track
Enable or disable the function of signal track. Tracks signals with unstable frequency and less than
3dB transient variation in amplitude by placing Marker 1(refer to “Marker Measurement”) onto the
measured signal to track the variation continuously.
Progress of signal track as figure 2-1:
Figure 2-1
-14-
Parameter
Description
Default
150MHz (P4130-1)
220MHz (P4135-1)
300MHz (P4140-1)
Range
1 Hz ~ 1.5GHz (P4130-1)
1 Hz ~ 2.2GHz (P4135-1)
1 Hz ~ 3.0GHz (P4140-1)
Unit
GHz, MHz, kHz, Hz
Knob Step
Span>0, step=span/200
Span=0, step=VBW/100, Min=1 Hz
Arrow Keys Step
In 1-2-5 sequency