Keysight N1911A Programming Manual page 248

5 DISPlay Subsystem
Reset Condition
On reset, the lower scale limit is set to –70 dBm.
Query
DISPlay[:WINDow[1]|2]:METer:LOWer? [MIN|MAX]
The query returns the current setting of the analog meter's lower scale limit or the
value associated with MIN and MAX. The format of the response is <NR3>. The units
in which the results are returned is dependent on the current setting of
UNIT:POWer and CALCulate:RELative:STATe as shown in
Query Example
DISP:MET:LOW?
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This command queries the lower scale limit
set on the analog meter in the upper window.
N1911A/1912A P-Series Power Meters Programming Guide
Table 5-3.