General Applications
Generation of standard-compliant digital baseband signals
An R&S®SMU200A, R&S®SMJ100A or R&S®AMU200A signal
generator together with the R&S®EX-IQ-Box provides digital baseband signals for all important mobile radio and wireless standards such as EUTRA/LTE, 3GPP, HSPA, GSM/EDGE, WiMAX IEEE 802.16 and WLAN IEEE 802.11n. All signal generation functions of the instrument are also available
for generating digital baseband signals, plus all signal
processing functions to yield effects such as fading, AWGN or I/Q impairments. This allows bit and block error ratio measurements on baseband receiver chips to be performed accurately and reproducibly.
Receiver measurement on a baseband module
Flexible conversion of digital baseband signals to analog IF or RF signals
When using theR&S®EX-IQ-Box as a receiver together with an R&S®SMU200A with baseband inputs, baseband signals from a DUT can be upconverted to the RF. The R&S®SMU200A's capabilities of introducing signal effects are available also for this application. The generator can thus simulate the RF section of a transmitter, enabling the baseband section to be tested independently of the RF section.
Signal generator simulates an RF board
Signal analysis of digital baseband signals of all important modern standards
To analyze digital baseband signals, the R&S®EX-IQ-Box is operated in the receiver mode together with an R&S®FSQ, R&S®FSG, R&S®FSV or R&S®FMU signal analyzer. The analyzers' wide range of functions, including modulation and code domain analysis, is available for carrying out transmitter measurements on baseband chips. Moreover, I/Q signals can be stored for postprocessing, e.g. for BER analysis.
Transmitter measurement on a baseband module
Realtime conversion of RF or analog baseband signals to digital formats
An R&S®FSQ or R&S®FSG signal analyzer in conjunction
with the R&S®EX-IQ-Box can be used as a realtime RF digitizer to replace RF frontends not yet completed, or simply to record RF signals over extended periods of time.
Signal analyzer as a realtime RF digitizer
