The Rohde & Schwarz FSH-K56 option enables the measurement of NB-IoT transmit signals. NB-IoT occupies a bandwidth of 180 kHz, which corresponds to a block of resources in LTE transmission. The EVM value and frequency error are displayed on the overall results page; these are important parameters for quality assessment of the transmitted signal. Other physical signal parameters of the NB-IoT downlink (NPSS, NSSS and NPBCH) are also measured and displayed. The constellation diagram graphically shows the quality of the NB-IoT signal.
The Rohde & Schwarz FSH-K56 option supports the analysis of a NB-IoT downlink signal in the three operating modes in-band, guard band and standalone.