R&S FSL Cable TV Measurements (Option K20)
1300.2519.12 4.243 E-11
Unit
Opens the Unit dialog box to select the unit: s, m.
Remote: CALC:DTV:UNIT:POW:EPAT M
Z
oom
Opens an edit dialog box to zoom onto the echo pattern measurement, around 0 Ms. The zoom
factor can vary from 1 to 20.
Remote: DISP:ZOOM:EPAT 2
Remote: DISP:ZOOM:EPAT:STAT ON
Velocity Factor
Opens an edit dialog box to enter the velocity of propagation of the signal in the transmission
channel (e.g. cable), relative to speed of light.
The velocity factor is used to convert the impulse response results from seconds into meter,
when changing the unit via the Unit softkey.
Remote: CORR:RVEL 2
Digital TV Settings
Opens the Digital TV Settings dialog box to modify the modulation standard and equalizer
parameters. For details on the modulation standard parameters, refer also to "Modulation
standards" on page 4.210 and "To create a new modulation standard" on page 4.207.
Under Equalizer, the following equalizer parameters can be modified:
– Activating or deactivating the equalizer: If the Activate option is activated, the equalizer is
switched on and filters the signal.
– Activating or deactivating the Freeze Equalizer option: If activated the equalizer coefficients
remain unchanged. If deactivated the equalizer taps are changed with every measurement.
– Pressing the Reset button sets all equalizer parameters to their default values.
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