Gw-instek GDS-3000 Series Programming Manual Manual do Utilizador descarregar pdf (Página 46)

GDS-3000 Programming Manual

: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.

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