Chapter 4
Front-Panel Key and SCPI Command Reference
Measurement keys
185
Front-Panel Key and SCPI Command
Reference
4.4.3.2.3 Range Switching
Two kinds of range switching are supported. One is Manual ranging which is similar to what 8902A does. For
example, when you use 0dBm and –60 dBm signal to calibrate measuring receiver, while the signal is near 0
dBm and –60 dBm, recal status is displayed, then TRFL Calibrate key should be pressed. In Auto mode, the
TRFL Calibrate key is grayed out, and the range switching can be made automatically depending on SNR.
4.4.3.2.4 Range Hold
In TRFL measurement, there are 3 ranges which may be used to measure over a range of
>100 dB. This parameter forces the measurement to remain in the current range. One use for this parameter is
when you are measuring unstable signals, which can cause the analyzer to switch between 2 different ranges.
Selecting
RangeHold holds the analyzer in the current range.
Preset: H10
State Saved: Saved in instrument state.
Range: H10|H75|H30k|H200k
Example: :TRFL:IFBW H10
:TRFL:IFBW?
Key Path:
Meas Setup
Remote Command: [:SENSe]:TRFLevel:RASWitch AUTO|MAN
[:SENSe]:TRFLevel:RASWitch?
Preset: AUTO
State Saved: Saved in instrument state.
Range: Auto|Man
Dependencies/Couplings: While Auto is selected, TRFL calibrated key must be grayed.
Example: :TRFL:RASW MAN
:TRFL:RASW?
Mode: MRECEIVE
Key Path:
Meas Setup
Remote Command: [:SENSe]:TRFLevel:RHOLd OFF|ON|0|1
[:SENSe]:TRFLevel:RHOLd?
Preset: OFF
State Saved: Saved in instrument state.
Range: On | Off
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