Parameter Entry and Measurement Setup Dialog Archive

Front Panel Menus

VSA Modulation Parameters Setup Dialog

The VSA Modulation Parameters dialog allows you to specify the modulation setting for your measurement.

 

Modulation Settings:

 

Format:

 

BPSK: Binary Phase Shift Keying

 

QPSK: Quadrature Phase Shift Keying (default)

 

Pi4QPSK: Pi/4 Quadrature Phase Shift Keying

 

8PSK: Octet Phase Shift Keying

 

3Pi8PSK: 3Pi/8 Phase Shift Keying

Modulation Tab

16QAM: 16 Value Quadrature Amplitude Modulation

32QAM: 32 Value Quadrature Amplitude Modulation

 

 

64QAM: 64 Value Quadrature Amplitude Modulation

 

128QAM: 128 Value Quadrature Amplitude Modulation

 

256QAM: 256 Value Quadrature Amplitude Modulation

 

Symbol Rate: Sets the symbol rate for the

 

measurement.

 

Range: 10 kHz to 20 MHz

 

Default: 3.84 MHz.

 

Capture Time: Sets the length of the time during which

 

samples are captured.

 

Range: 1s to 5 µs*

 

Terminators: us, ms, s, ks, Cancel

 

* Constrained by the following:

 

10,000 (Symbol Rate x Capture Time 100

 

Filtering:

 

Filter Type: Selects from the following receiver filters:

 

Low Pass

 

Nyquist

 

Root Nyquist (default)

 

Rolloff Factor: Sets the roll-off factor for the

 

measurement.

 

Range: 0.1 to 1.0 in steps of 0.01

 

Default: 0.22.

 

 

Figure 4-19.VSA Modulation Parameters Dialog

 

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MS278XB OM

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Anritsu Series MS278XB VSA Modulation Parameters Setup Dialog, Modulation Settings, Format, Modulation Tab, Filtering