R&S FSL Cable TV Measurements (Option K20)
1300.2519.12 2.51 E-11
Fig. 2-33 Analog TV Spectrum measurement
Carriers measurement
This measurement determines the carrier power (vision carrier, one or two sound carriers) and the
frequency distances. It also compares them against the default values. The sound carrier power is
displayed relative to the measured vision carrier power.
The measurement display is split into two panes. In the upper pane, the spectrum as in the
corresponding Spectrum measurement is displayed. In the lower pane, the result table for the
measurement is displayed.
Test setup:
Refer to the section Analog TV test setup.
Procedure:
1. Press the MEAS key.
2. Press the Analog TV softkey.
3. Press the Carriers softkey.
4. To change the limits, press the Edit Table softkey.
5. To adjust the input attenuator, press the Adjust Attenuation softkey.
6. Press the FREQ key.
7. Enter 210.25 MHz for the vision carrier frequency of the input signal.
8. Press the RUN key.
The upper pane gives a quick overview of the channel, just like in the Spectrum measurement.
In the lower pane, you can check whether the signal meets the requirements. Absolute and relative
powers and frequencies are measured and compared against the limits. The result is either Pass or
Fail.
To Next Page
Loading...
