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VXA Vector Signal Analysis X-Series Measurement Application N9064A & W9064A

Technical Overviews

Self-Guided Demonstration

Minimum Equipment and Measurement Application Configuration Requirements

All demonstrations utilize an X-Series signal analyzer with N9064A-1FP, 2FP. Keystrokes surrounded by [ ] indicate front-panel hardkeys; softkey operations located on the right edge of the display are surrounded by { }.

In this document, a quick demonstration will guide you through QPSK modulation analysis measurements.

N/W9064A-1FP vector signal analysis (required)

Option 1FP is the foundation of the N9064A measurement application, offering basic vector signal analysis with SCPI programming and front panel operation on an X-Series signal analyzer. It provides:

- Spectrum analysis and time domain analysis with signal tracking

- Band power, occupied bandwidth, and ACP measurements

- Markers, marker coupling, triggering

- Time gating

- Frequency counter

- Analog demodulation measurements (AM, FM, PM)

N/W9064A-2FP flexible digital modulation analysis

Option 2FP offers a complete set of modulation quality measurements for:

- MSK, QPSK, 8PSK, BPSK, π/4 DQPSK, π/8 D8PSK, D8PSK, offset QPSK

- QAM16, 32, 64, 128, 256, 512, 1024

- DVB QAM16, 32, 64, 128, 256

- FSK 2, 4, 8, 16 states

- VSB8, VSB16

- APSK16, 32, 16 w/DVB, 32 w/DVB

- CPM

- Cellular: IS-95 base and mobile, GSM, EDGE, CDPD, NADC, PDC, PHP, 3GPP (W-CDMA)

- Wireless networking: 802.11b, HIPERLAN/1(HBR and LBR), Bluetooth®, ZigBee (802.15.4, 868/915/2450 MHz), WiSUN (MR-FSK PHY)

- Digital video: DTV8 – 16, DVB16 – 256, DVB 16APSK with code rate 2/3 to 9/10, DVB32 APSK with code rates 3/ 4 to 9/10

- Other: APCO 25, APCO 25 P2 (HCPM, HDQPSK), DECT, TETRA, VDL Mode 3, MIL-STD 188-181C, SOQPSK-TG

Demonstration

QPSK modulation analysis measurements

You can adjust the following parameters when making digital modulation measurements with VXA measurement application Option 2FP:

- Modulation format (QAM, PSK, MSK, FSK, DVBQAM, VSB, APSK)

- Symbol rate

- Measurement interval (10 to 4096)

- Points/symbol (1 to 20)

- Gain imbalance /quad skew coupling On/Off

- Measurement filter (no filter, RRC, Gaussian, EDGE, CDMA (IS-95 Base EQ), rectangular, low pass, user defined)

- Reference filter (raised cosine, RRC, Gaussian, EDGE, CDMA (IS-95 Base), rectangular, half sine, user-defined)

- Alpha/BT (0.05 to 100)

- Burst/sync search

In this demonstration, the settings for the signal generator are:

- Center frequency = 1 GHz

- Level = –10 dBm

- Symbol rate = 1 MHz

- Modulation type = QPSK

- Filter = Root Nyquist

- Filter alpha = 0.35

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