Atec Rohde-Schwarz-CMW500 - Manual (Page 61)

Version 11.00, May 2013
Rohde & Schwarz R&S ® CMW500 Wideband Radio Communication Tester 61
Frequency error
Measurement range ±3 kHz
Frequency measurement uncertainty < 20 Hz + drift of timebase,
see general technical specifications
Carrier feedthrough
Inherent carrier feedthrough for average ≥ 10 measurements < –55 dB
I/Q imbalance
Inherent I/Q imbalance < –50 dB
Code domain
Filter 1.23 MHz, RRC, α = 0.22, CDMA filter
Level range –28 dBm to +42 dBm 47
Measured parameters numeric values of current, average,
max. and min. values code domain power (CDP),
code domain error (CDE)
graphical code domain power versus code,
code domain error versus code
Code domain power versus code
Uncertainty < 0.4 dB
Measurement length 616 chip (0.5 ms)
Code domain error versus code
Measurement uncertainty < 0.4 dB
Measurement length 616 chip (0.5 ms)
Spectrum measurements
Adjacent channel power RMS detector, at the selected frequency
offsets
Filter 30 kHz Gaussian
Frequency offset interval up to 10 adjacent channels on each side –4 MHz to +4 MHz
Dynamic range > 70 dB
Expected nominal power setting for full
dynamic range RF1 COM, RF2 COM +1 dBm to +42 dBm 47
Uncertainty for –43 dBc adjacent channel level < 0.5 dB
Measurement length one power control group 1536 chip (1.25 ms)
Power meter
MS power
Filter narrowband bandpass, 1.25 MHz
Filter wideband bandpass, 8 MHz
Level range –55 dBm to +42 dBm 47
Level uncertainty see general technical specifications
Measurement length 616 chip (0.5 ms)
47 The maximum permissible continuous power is +34 dBm due to thermal limits.