Atec Tektronix-RSA3000B - Manual (Page 7)

Spectrum Analyzers — RSA3000B Series
Analysis-related
Optional Measurement Functions, Standards-based and Offline Analysis
Description Measurements and Displays
General Purpose Digital
Modulation Analysis
(Option 21)
Mod. Formats: BPSK,
QPSK, π/4 DQPSK,
OQPSK, SOQPSK, 8PSK,
D8PSK,16/32/64/128/256-QAM,
GMSK, GFSK, C4FM,
2ASK, 2FSK, 4FSK, 8FSK,
16FSK, CPM (per MIL STD
188-181C)
Standard support:
Bluetooth, TETRA, P25,
IEEE 802.15.4 OQPSK
(Zigbee)
EVM (RMS, Peak, EVM vs. Time), Magnitude Error (RMS, Peak, Mag Error vs. Time), Phase Error (RMS, Peak, Phase Error vs. Time),
Origin Offset, Frequency Error, Gain Imbalance, Quadrature Error, Rho, Constellation, Symbol Table, Symbol Timing Error, FSK Deviations
and Error, Eye Diagram
PDF: Probability of Occurrence vs. Power Level
AM-AM, AM-PM, 1 dB Compression, Crest Factor
Demodulation Accuracy
Characteristic
RSA3300B Models RSA3400B Models
16/64 QAM EVM CF = 2 GHz (typical) 0.9% (at 100 kS/s)
0.5% (at 1 MS/s)
1.2% (at 4 MS/s)
2.2% (at 10 MS/s)
0.5% (at 1 kS/s)
0.5% (at 1 MS/s)
0.5% (at 4 MS/s)
0.7% (at 10 MS/s)
QPSK EVM CF = 2 GHz (typical) 0.5% (at 100 kS/s)
0.5% (at 1 MS/s)
1.2% (at 4 MS/s)
2.7% (at 10 MS/s)
0.5% (at 100 kS/s)
0.5% (at 1 MS/s)
0.6% (at 4 MS/s)
0.9% (at 10 MS/s)
Modulation Accuracy (typical)
π/4DQPSK Total EVM: 0.65% (95 percentile)
Test Condition: Symbol Rate = 24.3 kHz
Measurement Filter: Root Raised Cosine, alpha = 0.3
Reference Filter: Raised Cosine, alpha = 0.3
Signal Power = –25 dBm
GMSK EVM: 0.94% (95 percentile)
Test Conditions:
Symbol Rate = 270.833 kHz
Gaussian BT = 0.3
Signal Power = –25 dBm
GFSK FSK Error (RMS): 1.01% (95 percentile)
Test Conditions:
Symbol Rate = 1.152 MHz
Gaussian BT = 0.5
Deviation = 288 kHz
Signal Power = –25 dBm
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