GW Instek GDS-800 Series Programming Manual - Manual (Page 31)

GDS-806/810/820/840 Programming Manual
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:CHANnel<X>:MATH
Set the math expression.
Syntax
:CHANnel<X>:MATH {0|1|2|3}
Arguments
<X>
→Specify the channel number (1|2)
0 →Select the add operator 1 →Select the subtract operator
2 →Select the FFT operation 3 →Turn off math function
Returns
<NR1>
:CHANnel<X>:OFFSet
Sets or query the offset voltage.
Syntax
:CHANnel<X>:OFFSet <NR3>
:CHANnel<X>:OFFSet?
Arguments
<X>
→Specify the channel number (1|2)
<NR3> is the desired offset value in volts. The range is dependent on the scale and
the probe attenuation factor. The offset ranges are following:
Offset Range:
2mV/div ~ 50mV/div ±0.5V
100mV/div ~ 500mV/div ±5V
1V/div ~ 5V/div ±50V