User Manual

Select QAM

Press Menu → Mod → Type → QAM successively to use QAM function (if Type is not

highlighted, press soft key Type to select). After QAM function is used, UTG2000B

function/arbitrary waveform generator will output modulated waveform with the current

carrier phase and modulation phase.

Figure 4- 12 Select QAM function

Select carrier waveform

QAM carrier waveform is sine wave.

Figure 4- 13 Select carrier waveform

Set carrier frequency

See Carrier wave frequency setting

Set modulation mode

Modulation mode is subsection of constellation, which varies with the modulation mode

selected. Press soft key IQ map to highlight it, and input the required period value through

numeric keyboard or direction key and knob, which can be 4QAM, 8QAM, 16QAM, 32QAM,

64QAM, 128QAM or 256QAM.

Select modulation frequency

After enabling the QAM, the default source is PN7. Press Param → Source and input the

source number, you can set as PN7,PN9,PN11,PN15,PN17,21,PN23,PN25 Set QAM rate