GW Instek GDS-3000 Series Programming Manual - Manual (Page 44)

GDS-3000 Programming Manual
44
Example :MATH:DUAL:POSition 1.0E+0
Sets the vertical position to 1.00 unit/div.
:Math:DUAL:POSition?
1.0E+0
Returns the position as 1.00 unit/div.
:MATH:DUAL:SCALe
Set
Query
Description Sets the vertical scale of the displayed math result.
Syntax :MATH:DUAL:SCALe {<NRf>|?}
Parameter <NRf> Vertical scale
Depends on the vertical scale
Return parameter Returns the scale as <NR3>
Example :MATH:DUAL:SCALe 2.0E-3
Sets the vertical scale to 2mV/2mA.
:MATH:DUAL:SCALe?
2.0E-3
Returns the unit/div scale (2mA).
:MATH:FFT:SOURce
Set
Query
Description Sets and queries the FFT source.
Syntax :MATH:FFT:SOURce
{CH1|CH2|CH3|CH4|REF1|REF2|REF3|REF4|?}
Parameter CH1~4 Channel 1 to 4
REF1~4 Reference waveform 1 to 4
Return parameter Returns the FFT source.