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Modulation uncertainty for main standards, Signal performance for digital standards – Atec Rohde-Schwarz-SMU200A User Manual

Page 30

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Version 08.00, January 2012

30

Rohde & Schwarz

R&S

®

SMU200A Vector Signal Generator

Modulation uncertainty for main standards

Typical values

Standard GSM

EDGE

WCDMA
3GPP
(1DPCH)

cdmaOne
Reverse

DECT TETRA

NADC PDC IEEE

802.11a

800 to 900

824 to 894

810 to 956

2400 to
2485

Frequency
in MHz

400 to
2000

400 to
2000

1800 to
2200

1850 to 2000

1880 to
1990

380 to
480

1850 to
2000

1429 to
1501

5150 to
5825

EVM in %

0.2

0.3

0.2

0.2

0.2

0.2

0.4

Phase error
in °

0.15

– –

– – –

Deviation error
in kHz

0.5

– – –

Channel
spacing

200 kHz

200 kHz 5 MHz

1.25 MHz

1.728 MHz

25 kHz

30 kHz

25 kHz

Adjacent channel power ratio (ACPR) in dB

8

In adjacent
channel

−37

−38

−72

9

−85

10

−74

11

−34

−74

−42
at 11 MHz

In alternate
channel

−71

−71

−78

12

−89

13

−77

11

−80

−82

−64
at 20 MHz

In 2nd alternate
channel

−85

−85 –

−95

14

– – – –

−66
at 30 MHz

Signal performance for digital standards

GSM/EDGE

with R&S

®

SMU-K40 option

Burst on/off ratio

> 100 dB

MSK, Gaussian filter B × T = 0.3

RMS

< 0.4°, 0.15° (typ.)

Phase error

peak

< 1.2°, 0.4° (typ.)

Error vector magnitude

8PSK EDGE, Gaussian linearized filter,
RMS

< 0.5 %, 0.2 % (typ.)

values measured with 30 kHz resolution bandwidth, referenced to level in band center
without power ramping
level

≤ 10.5 dBm, ≤ 16.5 dBm with R&S

®

SMU-B31, R&S

®

SMU-B36 options

200 kHz offset

< –34 dB, –37 dB (typ.)

400 kHz offset

< –68 dB, –71 dB (typ.)

Power density spectrum

600 kHz offset

< –80 dB, –85 dB (typ.)


8

Level restricted, see specifications.

9

0 dB baseband gain (standard).

10

885 kHz offset and 30 kHz bandwidth.

11

Measured with root cosine filter.

12

6 dB baseband gain (low noise).

13

1.25 MHz offset and 30 kHz bandwidth.

14

1.98 MHz offset and 30 kHz bandwidth.