10 | Keysight | Signal Studio for LTE/LTE-Advanced FDD/TDD N7624B/N7625B - Technical Overview

EVM performance (Playback mode)

Carrier

bandwidth

(MHz)

E-TM

Allocated RB

PDSCH

modulation

Measured EVM (%)

N7624B

N7625B

M9381A

N5172B/

N5182B

M9381A

N5172B/

N5182B

5

2

1

64QAM

0.21

0.15

0.20

0.15

2a

256QAM

—

0.18

—

0.17

3.1

25

64QAM

0.34

0.39

0.51

0.48

3.1a

256QAM

—

0.51

—

0.52

3.2

16QAM

0.47

0.46

0.57

0.58

QPSK

0.26

0.25

0.39

0.40

3.3

16QAM

0.26

0.34

0.37

0.39

QPSK

0.61

0.59

0.82

0.89

10

2

1

64QAM

0.18

0.13

0.19

0.13

2a

256QAM

—

0.13

—

0.14

3.1

25

64QAM

0.29

0.33

0.37

0.32

3.1a

256QAM

—

0.39

—

0.36

3.2

16QAM

0.39

0.31

0.48

0.50

QPSK

0.23

0.18

0.28

0.28

3.3

16QAM

0.24

0.19

0.29

0.31

QPSK

0.53

0.44

0.70

0.78

20

2

1

64QAM

0.14

0.11

0.14

0.13

2a

256QAM

—

0.16

—

0.15

3.1

25

64QAM

0.28

0.32

0.33

0.27

3.1a

256QAM

—

0.31

—

0.31

3.2

16QAM

0.38

0.31

0.41

0.39

QPSK

0.22

0.18

0.23

0.22

3.3

16QAM

0.22

0.23

0.23

0.21

QPSK

0.53

0.46

0.57

0.51

Distortion performance (Real-time mode)

Fixed reference channel

Modulation

Adjacent channel

offset (MHz)

Measured ALCR (dBc)

(With Option 660)

Integration bandwidth

(MHz)

N7624B

N7625B

A3-1

QPSK

1.4

–65.9

–68.2

1.1

A3-4

5

–70.6

–69.7

4.5

A3-5

10

–69

–68.3

9

A3-7

20

–66.6

–65.6

18

A4-1

16QAM

1.4

–66.1

1.1

A4-5

5

–70

–68.6

4.5

A4-6

10

–68.7

–68.4

9

A4-7

20

–65.9

18

A4-8

20

–66.3

18

A5-1

64QAM

1.4

–66.7

1.1

A5-4

5

–69.9

–67.6

4.5

A5-5

10

–68.3

–67.6

9

A5-7

20

–66.2

–65.2

18

EVM performance (Real-time mode)

Fixed reference channel

Modulation

Allocated RB

Measured EVM (%)

(With Option 660)

N7624B

N7625B

A3-1

QPSK

1

0.46

0.46

A3-4

25

A3-5

50

A3-7

100

A4-1

16QAM

1

0.45

A4-5

25

A4-6

50

A4-8

100

A5-1

64QAM

1

0.49

A5-4

25

A5-5

50

A5-7

100