Bnc 645 User Manual download pdf (Page 41)

Figure 4-8

Remote interface operation

FUNCtion USER {EXP_RISE | EXP_FALL | NEG_RAMP | SINC | CARDIAC}

Remote interface operation

DATA:DAC VOLATILE, {<binary block>|<value>, <value>, …}

DATA VOLATILE, <value>, <value>, …

FORMat:BORDer {NORMal

︱SWAPped}

DATA:COPY <destination arb name> [,VOLATILE]

DATA:CATalog?

DATA:NVOLatile:CATalog?

DATA:NVOLatile:FREE?

DATA:ATTRibute:AVERage? [<arb name>]

DATA:ATTRibute:CFACtor? [<arb name>]

DATA:ATTRibute:POINts? [<arb name>]

DATA:ATTRibute:PTPeak? [<arb name>]

4.7 Amplitude Modulation

Amplitude modulation provides a waveform in which the amplitude of the

carrier waveform varies with the modulating waveform.

Carrier Waveform

The default carrier waveform is sine. One may also choose from square,

ramp and arbitrary waveforms but not pulse, noise and dc waveforms.

The default carrier frequency is 1kHz for all waveforms. Each carrier

waveform has its own acceptable range of frequencies. Refer to the table

in Section 3.4 “To Set Output Frequency/Period” for details.

Modulating Waveform

Model 645 accepts either internal or external modulating source but not

both at the same time. The default source is internal, and the default

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Bnc 645 User Manual Page 41