|  |  | R&S®FSC3 | R&S®FSC6 | 
| Frequency range |  | 9 kHz to 3 GHz | 9 kHz to 6 GHz | 
| Resolution bandwidth |  | 10 Hz to 3 MHz | 
| Displayed average noise level | without preamplifier, RBW = 1 Hz | 
|  | 10 MHz to 2 GHz | < –141 dBm, typ. –146 dBm | < –141 dBm, typ. –146 dBm | 
|  | 2 GHz to 3 GHz | < –138 dBm, typ. –143 dBm | < –138 dBm, typ. –143 dBm | 
|  | 3 GHz to 3.6 GHz | – | < –138 dBm, typ. –143 dBm | 
|  | 3.6 GHz to 5 GHz | – | < –142 dBm, typ. –146 dBm | 
|  | 5 GHz to 6 GHz | – | < –140 dBm, typ. –144 dBm | 
|  | with R&S®FSC-B22 preamplifier option, RBW = 1 Hz | 
|  | 10 MHz to 1 GHz | < –161 dBm, typ. –165 dBm | < –161 dBm, typ. –165 dBm | 
|  | 1 GHz to 2 GHz | < –159 dBm, typ. –163 dBm | < –159 dBm, typ. –163 dBm | 
|  | 2 GHz to 3 GHz | < –155 dBm, typ. –159 dBm | < –155 dBm, typ. –159 dBm | 
|  | 3 GHz to 5 GHz | – | < –155 dBm, typ. –159 dBm | 
|  | 5 GHz to 6 GHz | – | < –151 dBm, typ. –155 dBm | 
| IP3 | frequency 1 GHz | typ. 15 dBm | 
| Phase noise | frequency 500 MHz | 
|  | 30 kHz carrier offset 100 kHz carrier offset
 1 MHz carrier offset
 | < –95 dBc (1 Hz) < –100 dBc (1 Hz)
 < –120 dBc (1 Hz)
 | 
| Detectors |  | sample, max/min peak, auto peak, RMS | 
| Level measurement uncertainty | 10 MHz < f ≤ 3.6 GHz 3 GHz < f < 3.6 GHz
 3.6 GHz < f ≤ 6 GHz
 | < 1 dB, typ. 0.5 dB | < 1 dB, typ. 0.5 dB < 1 dB, typ. 0.5 dB
 < 1.5 dB, typ. 1 dB
 | 
| Tracking generator (model .13/.16) | 
| Frequency range |  | 100 kHz to 3 GHz | 100 kHz to 6 GHz | 
| Output power |  | 0 dBm (nominal) | 0 dBm (nominal) | 
| Dynamic range (transmission)
 | 100 kHz < f < 300 kHz 300 kHz < f < 3 GHz
 3 GHz < f < 6 GHz
 | > 60 dB, typ. 80 dB > 70 dB, typ. 90 dB
 –
 | > 60 dB, typ. 80 dB > 70 dB, typ. 90 dB
 > 70 dB, typ. 90 dB
 | 
| Display |  | 5.7" (14.5 cm) color LCD with VGA resolution | 
| Dimensions | (W x H x D) | 233 mm × 158 mm × 350 mm (9.2 in × 6.2 in × 13.8 in)
 | 
| Weight |  | 4.5 kg (9.92 lbs) |