User Manual

The Spectrum Application (RF Measurements)
R&S
®
FPL1000
388User Manual 1178.3370.02 ─ 03
Range .........................................................................................................................388
Ref Level Position ...................................................................................................... 388
Auto Scale Once ........................................................................................................ 388
Scaling ....................................................................................................................... 389
Range
Defines the displayed y-axis range in dB.
The default value is 100 dB.
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe] on page 660
Ref Level Position
Defines the reference level position, i.e. the position of the maximum AD converter
value on the level axis in %, where 0 % corresponds to the lower and 100 % to the
upper limit of the diagram.
For spectrograms, this value defines the position of the reference level value within the
span covered by the color map. In this case, the value is given in %, where 0 % corre-
sponds to the maximum (right end) and 100 % to the minimum (left end) of the color
map.
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RPOSition on page 661
Auto Scale Once
Automatically determines the optimal range and reference level position to be dis-
played for the current measurement settings.
The display is only set once; it is not adapted further if the measurement settings are
changed again.
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:AUTO ONCE on page 660
Amplitude and Vertical Axis Configuration