Tektronix AWG 2021 Bedienungsanleitung PDF herunterladen (Seite 26)

26

Figure 32. Quadrature amplitude modulated

(QAM) signal generated by combining an

amplitude modulated cosine carrier (upper) and

an amplitude modulated sine carrier. There are

16 symbols, so this is 16-QAM.

I In

I/Q Modulated RF Out

Discrete Q Signal

Discrete I Signal

Ch. 2 Out

Ch. 1 Out

AWG

RF Generator

Controller (PC)

Oscilloscope (DSO)

Q In

DUT

Figure 33. This block

diagram shows the

setup for quadrature

modulation. For more

information about

suitable RF sources,

contact your local

Tektronix

representative.

I pattern x carrier

Q pattern x carrier

Sum

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 ... 35 36

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