GW Instek GDS-3000 Series Programming Manual - Manual (Page 46)

GDS-3000 Programming Manual
46
:MATH:FFT:POSition
Set
Query
Description Sets the vertical position of the displayed FFT
result.
Syntax MATH:FFT:POSition { <NRf> | ? }
Parameter <NRf> Vertical position
-12e+0 -
+12e+0 -12 units/division to +12 units/division.
Return parameter Returns the vertical position as <NR3>.
Example :MATH:FFT:POSition -2e-1
Sets the FFT position to -0.2 divisions.
:MATH:FFT:SCALe
Set
Query
Description Sets the vertical scale of the displayed FFT result.
Syntax :MATH:FFT:SCALe {<NRf>|?}
Parameter <NRf> Vertical scale
2e-3 ~ 1e+3 2mV~1kV
1e+0 ~ 2e+1 1~20dB
Return parameter Returns vertical scale as <NR3>.
Example :MATH:FFT:SCAle 1.0e+0
Sets the scale to 1dB.