Ask Subsystem - Hantek HDG 2000 Series User Manual

 To avoid multiple waveform changes, enable modulation after configuring the other modulation
parameters.
 Only one modulation mode may be enabled at a time.
 The instrument will not enable modulation with sweep or burst enabled. When you enable
modulation, the sweep or burst mode is turned off.
 PWM is allowed only when pulse is the selected function.

5.2.2 ASK Subsystem

ASK(Amplitude Shift Keying) is a form of amplitude modulation that represents digital data as
variations in the amplitude of a carrier wave.
SOURce<n>:MOD:ASKey:AMPLitude <amplitude>|MINimum|MAXimum
SOURce<n>:MOD:ASKey:AMPLitude? [MINimum|MAXimum]
Sets amplitude of the modulating waveform
Parameter
0 Vpp to20 Vpp, default 2Vpp
Set the modulating amplitude to 1Vp-p for CH1:SOURce1:MOD:ASKey:AMPLitude 1
SOURce<n>:MOD:ASKey:INTernal:RATE <frequency>|MINimum|MAXimum
SOURce<n>:MOD:ASKey:INTernal:RATE? [MINimum|MAXimum]
Set the output frequency between carrier frequency and frequency hopping rate of "mobile".
Parameter
2 mHz to 1 MHz, default 100Hz
Set the modulating rate to
SOURce<n>:MOD:ASKey:SOURce INTernal|EXTernal
SOURce<n>:MOD:ASKey:SOURce?
Select the source of the modulating signal (INTernal or EXTernal).
Parameter
INTernal|EXTernal, default INTernal
Select external modulation source on CH1: SOURce<n>:MOD:ASKey:SOURce EXTernal
SOURce<n>:MOD:ASKey:POLarity POSitive|NEGative
SOURce<n>:MOD:ASKey:POLarity?
Select POSitive or NEGative of the modulating signal to control waveform output.
Parameter
POSitive|NEGative, default POSitive
Select NEGative of the modulating signal to control waveform output:
SOURce1:MOD:ASKey:POLarity NEGative
HDG2000 Series Arbitrary Waveform Generator
200Hz on CH1: SOURce1:MOD:ASKey:INTernal:RATE 200
Typical Return
+1.000000000000000E+00
Typical Return
+2.000000000000000E+02
Typical Return
INTernal, or EXTernal
Typical Return
POSitive, or NEGative
SCPI Programming Reference
68