45
Check the shape of PM modulation waveform through the oscilloscope, which is shown in the figure below:
Figure 4- 36 Observe PM waveform with oscilloscope
4.1.4
Amplitude Shift Keying
(
ASK
)
In amplitude shift keying, ASK expresses digital signals “0” and “1” by changing amplitude of carrier signal and outputs
carrier signals with different amplitude according to logic of modulation signal. The modulation mode of the two channels
is mutually independent. You can configure identical or different modulation modes for channels 1 and 2.
Select ASK modulation
Press MOD, Type and ASK in sequence to use ASK function (if “Type” is not highlighted, press soft key Type to select).
After ASK function is used, the function/arbitrary waveform generator will output modulated waveform with the current
ASK rate and carrier wave.
Figure 4- 37 Select ASK function