The ̧FSQ combines the outstanding spectrum ana-lyzer features and functions of the ̧FSU with those of a wideband signal analyzer. Due to its large analysis band-width of up to 120 MHz (R&S®FSQ‑B72), the R&S®FSQ is the right instrument for measuring broadband signals (e.g. WLAN, IEEE 802.11n/ac, 3GPP LTE or 3GPP WCDMA multicarrier signals), for determining amplitude statistics with the CCDF measurement and for measuring modula-tion accuracy or code domain power. Equipped with the R&S®FSQ‑B71 option, the R&S®FSQ can analyze signals in the analog baseband, and even in the digital baseband if the R&S®FSQ‑B17 option is used. The R&S FSQ determines the linear distortion in the RF and IF paths with the aid of the built‑in calibration source and corrects such distortion online using a compensation.
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