Quick Start: Learning How to Make Measurements
Learning to Make Transmission Measurements
5.Press WIDTH VALUE and enter 
−6
x1
.
The analyzer now calculates the bandwidth between −6 dB power levels.
6.Press 
Marker
MARKER all OFF when you are finished with this measurement.
Measuring Out-of-Band Rejection.
1.Press MARKER 1 . The marker appears where you placed it during the bandwidth measurement.
2.Press MKR ZERO 
Marker Search 
SEARCH: MIN .
The marker automatically searches for the minimum point on the trace. The frequency and amplitude of this point, relative to the delta symbol in the center of the filter passband, appear in the
Figure 2-6 Example Measurement of Out-of-Band Rejection
NOTE You can use the marker search mode to search the trace for the maximum point or for any target value. The target value can be an absolute level (for example, −3 dBm) or a level relative to the location of the small delta symbol (for example: −3 dB from the center of the passband).
3.If your measurement needs some noise reduction, you can reduce the IF bandwidth or add averaging.
• To reduce the IF bandwidth, press Avg IF BW [ ] | . |
• To add averaging, press 
Avg
, then toggle AVERAGING on OFF to ON.
Chapter 2 |