| Frequency range | 
            R&S®FSW8 | 
            2 Hz to 8 GHz | 
        
        
            |   | 
            R&S®FSW13 | 
            2 Hz to 13.6 GHz | 
        
        
            |   | 
            R&S®FSW26 | 
            2 Hz to 26.5 GHz | 
        
        
            |   | 
            R&S®FSW43 | 
            2 Hz to 43.5 GHz | 
        
        
            |   | 
            R&S®FSW50 | 
            2 Hz to 50 GHz | 
        
        
            | Aging of frequency reference | 
              | 
            1 × 10–7/year | 
        
        
            |   | 
            with R&S®FSW-B4 option | 
            3 × 10–8/year | 
        
        
            | Bandwidths | 
        
        
            | Resolution bandwidths | 
            standard filter | 
            1 Hz to 10 MHz, 80 MHz (with R&S®FSW-B8 option) | 
        
        
            |   | 
            RRC filter | 
            18 kHz (NADC), 
            24.3 kHz (TETRA), 
            3.84 MHz (3GPP) | 
        
        
            |   | 
            channel filter | 
            100 Hz to 5 MHz | 
        
        
            |   | 
            video filter | 
            1 Hz to 10 MHz | 
        
        
            | I/Q demodulation bandwidth | 
              | 
            10 MHz | 
        
        
            |   | 
            with R&S®FSW-B28 option | 
            28 MHz | 
        
        
            |   | 
            with R&S®FSW-B40 option | 
            40 MHz | 
        
        
            |   | 
            with R&S®FSW-B80 option | 
            80 MHz | 
        
        
            |   | 
            with R&S®FSW-B160 option | 
            160 MHz | 
        
        
            |   | 
            with R&S®FSW-B320 option | 
            320 MHz | 
        
        
            | Displayed average noise level (DANL) | 
        
        
            |   | 
            2 GHz | 
            –156 dBm (1 Hz) (typ.) | 
        
        
            |   | 
            with R&S®FSW-B13 option | 
            –159 dBm (1 Hz) (typ.) | 
        
        
            |   | 
            8 GHz | 
            –156 dBm (1 Hz) (typ.) | 
        
        
            |   | 
            20 GHz | 
            –150 dBm (1 Hz) (typ.) | 
        
        
            |   | 
            40 GHz | 
            –144 dBm (1 Hz) (typ.) | 
        
        
            DANL with preamplifier 
            (R&S®FSW-B24 option) | 
            8 GHz | 
            –169 dBm (1 Hz) (typ.) | 
        
        
            |   | 
            20 GHz | 
            –166 dBm (1 Hz) (typ.) | 
        
        
            |   | 
            40 GHz | 
            –165 dBm (1 Hz) (typ.) | 
        
        
            | DANL with noise cancellation, preamplifier off, 2 GHz | 
              | 
            –169 dBm (1 Hz) (typ.) | 
        
        
            | Intermodulation | 
        
        
            | Third-order intercept (TOI) | 
            f < 1 GHz | 
            (typ.) +30 dBm (typ.) | 
        
        
            |   | 
            f < 3 GHz | 
            +25 dBm (typ.) | 
        
        
            |   | 
            8 GHz to 26 GHz | 
            +17 dBm (typ.) | 
        
        
            |   | 
            13.6 GHz to 40 GHz | 
            +15 dBm (typ.) | 
        
        
            | WCDMA ACLR dynamic range | 
            with noise cancellation | 
            88 dB | 
        
        
            | Phase noise | 
        
        
            | 10 kHz offset from carrier | 
            500 MHz carrier | 
            –140 dBc (1 Hz) (typ.) | 
        
        
            |   | 
            1 GHz carrier | 
            –137 dBc (1 Hz) (typ.) | 
        
        
            |   | 
            10 GHz carrier | 
            –128 dBc (1 Hz) (typ.) | 
        
        
            | Total measurement uncertainty | 
            8 GHz | 
            < 0.4 dB |