Cable TV Measurements (Option K20) R&S FSL
1300.2519.12 4.242 E-11
Const Diagram
Opens a submenu to display the constellation diagram. For further information refer to
"Constellation Diagram (Modulation Analysis) – digital TV" on page 4.219.
Remote: CONF:DTV:MEAS CONS
Remote: TRAC? TRACE1
Zoom
Opens the Select Constellation Zoom Mode dialog box to set the zoom:
< none >
The whole constellation diagram is displayed (default setting).
Quadrant 1/2/3/4
The selected quadrant is displayed. A pictogram shows the
quadrant position.
Remote: DISP:ZOOM:QUAD 1
Freeze
Sets the display mode. If activated, the constellation diagram is displayed unchanged, while the
I/Q samples are collected in the background. If deactivated, the constellation diagram is
displayed on basis of the current I/Q samples and, in continuous sweep mode, is updated with
every measurement.
If a new zoom mode (see Zoom softkey) is selected, this softkey is automatically set to off.
Remote: DISP:TRAC1:MODE:FRE ON
Modulation Errors
Opens a submenu to measure the modulation accuracy.
For further information refer to "Modulation Errors (Modulation Analysis) – digital TV" on page
4.220.
Remote: CONF:DTV:MEAS MERR
Remote: CALC:DTV:RES? ALL
Channel Analysis
Opens a submenu to select a measurement for checking the transmission performance of a
channel:
– Echo Pattern
Echo Pattern
Opens a submenu to measure the magnitude of channel impulse response with respect to the
corresponding time delay.
For further information refer to "Echo Pattern (Channel Analysis) – digital TV" on page 4.220.
Remote: CONF:DTV:MEAS EPAT
Remote: TRAC? TRACE1
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