Atec Rohde-Schwarz-CMW500 - Manual (Page 38)

Version 11.00, May 2013
38 Rohde & Schwarz R&S ® CMW500 Wideband Radio Communication Tester
Modulation analysis
Filter filter bandwidth  wide bandpass 2.0 MHz
filter bandwidth  narrow bandpass 1.3 MHz
Level range –35 dBm to +42 dBm 20
Supported packet types basic rate DH1, DH3, DH5
enhanced data rate (EDR) 2-DH1, 2-DH3, 2-DH5,
3-DH1, 3-DH3, 3-DH5
Measured parameters basic rate,
numeric results and standard deviation ∆f2 99.9 %,
frequency accuracy,
frequency drift,
maximum drift rate,
frequency deviation ∆f1 average,
frequency deviation ∆f1 minimum,
frequency deviation ∆f1 maximum,
frequency deviation ∆f2 average,
frequency deviation ∆f2 minimum,
frequency deviation ∆f2 maximum,
nominal power
Measured parameters enhanced data rate (EDR),
numeric results and standard deviation 99 % DEVM,
frequency stability ω
i
,
frequency stability (ω
o
+ ω
i
)
max
,
frequency stability ω
o max
,
RMS DEVM,
peak RMS,
nominal power
Total measurement range for frequency
accuracy, frequency deviation and
frequency drift basic rate ±250 kHz
Frequency accuracy basic rate
Measurement range for nominal deviation of 160 kHz ±100 kHz
Uncertainty for deviation ≤ 160 kHz < 2 kHz
Frequency deviation average basic rate
Measurement range without frequency offset ≤ 210 kHz
Uncertainty for modulation index 0.22 to 0.42 < 1 %
Frequency drift basic rate
Measurement range ±50 kHz
Uncertainty measured in burst related to frequency
offset in preamble,
with 10101010 pattern < 2 kHz
Frequency stability ω
i
enhanced data rate
Measurement range ±100 kHz
Uncertainty for ω
i
≤ 75 kHz, for deviation ≤ 160 kHz < 2 kHz
Frequency stability ω
o max
enhanced data rate
Measurement range ±15 kHz
Uncertainty for ω
o
≤ 10 kHz < 1 kHz
Differential error vector magnitude
(DEVM) enhanced data rate
Inherent DEVM for PRBS pattern < 1.5 %, RMS
< 3.0 %, peak
20 The maximum permissible continuous power is +34 dBm due to thermal limits.