Ronde & Schwarz 1304.0004K03, Руководство пользователя

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The Spectrum Application (RF Measurements)
R&S
®
FPL1000
317 User Manual 1178.3370.02 ─ 11
Range ..........................................................................................................................317
Ref Level Position ....................................................................................................... 317
Auto Scale Once ......................................................................................................... 318
Scaling ........................................................................................................................ 318
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 769
Ref Level Position
Defines the reference level position, i.e. the position of the maximum AD converter
value on the level axis in %.
0 % corresponds to the lower and 100 % to the upper limit of the diagram.
Values from -120 % to +600 % are available. Larger values are useful for small scales,
such as a power range of 10 dB or 20 dB, and low signal levels, for example 60 dB
below the reference level. In this case, large reference level position values allow you
to see the trace again.
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 770
Amplitude and Vertical Axis Configuration