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Wlan ac rf analyzer (r&s, Cmw-km656 option), Modulation analysis – Atec Rohde-Schwarz-CMW500 User Manual

Page 47

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Version 11.00, May 2013

Rohde & Schwarz R&S

®

CMW500 Wideband Radio Communication Tester 47

Statistics

Statistical count

1 to 1000

Values

current, average, maximum, standard
deviation

Trigger

Trigger sources

BASE: external TRIG A
BASE: external TRIG B
GPRF: BB generator
WLAN: IF power

High throughput (HT)

PPDU format

mixed mode,
greenfield mode

Modulation analysis

Bandwidth

20 MHz, 40 MHz

Level range

–28 dBm to +42 dBm

32

Payload length

≥ 16 symbol or

Analysis modes

BPSK code rate 1/2 (MCS0),
BPSK code rate 3/4,
QPSK code rate 1/2 (MCS1),
QPSK code rate 3/4 (MCS2),
16QAM code rate 1/2 (MCS3),
16QAM code rate 3/4 (MCS4),
64QAM code rate 1/2,
64QAM code rate 2/3 (MCS5),
64QAM code rate 3/4 (MCS6),
64QAM code rate 5/6 (MCS7)

for optional 40 MHz MCS format

BPSK code rate 1/2 (MCS32)

Measured parameters

numeric results and standard deviation

total power,
EVM all carriers,
EVM data carriers,
EVM pilot carriers,
center frequency error,
symbol clock error,

numeric results for each spatial stream

EVM all carriers,
EVM data carriers,
EVM pilot carriers
power
I/Q offset

WLAN AC RF analyzer (R&S

®

CMW-KM656 option)

Frequency range

WLAN IEEE 802.11ac (5 GHz band),
prerequisite: R&S

®

CMW-KB036 option

5000 MHz to 6000 MHz,
for frequency exceptions for inherent
spurious response, see general technical
specifications

Statistics

Statistical count

1 to 1000

Values

current, average, maximum, standard
deviation

Trigger

Trigger sources

WLAN: IF power

High throughput (HT)

PPDU format

mixed mode,

32

The maximum permissible continuous power is +34 dBm due to thermal limits.