| Frequency range |
20 Hz to 3.6 GHz |
20 Hz to 8 GHz |
20 Hz to 26.5 GHz |
20 Hz to 40 GHz |
| Reference frequency |
aging: 1 x 10 –7/year, with R&S®FSU-B4 option: 2 x 10 –8 |
| Spectral purity |
| Phase noise |
typ. –133 dBc (1 Hz) at 10 kHz carrier offset, carrier frequency 500 MHz |
| Distortion |
1 Hz |
| Sweep time |
| Span >10 Hz |
2.5 ms to 16 000 s |
| Span 0 Hz (zero span) |
1 μs to 16 000 s |
| RBW |
10 Hz to 50 MHz, FFT filter: 1 Hz to 30 kHz, channel filter, EMI bandwidth |
| VBW |
1 Hz to 30 MHz |
| Display range |
DANL to +30 dBm |
| DANL (1 Hz RBW) |
| 1 GHz |
typ. –158 dBm |
typ. –155 dBm |
typ. –156 dBm |
typ. –155 dBm |
| 7 GHz |
− |
typ. –154 dBm |
typ. –155 dBm |
typ. –153 dBm |
| 13 GHz |
− |
− |
typ. –151 dBm |
typ. –151 dBm |
| 26 GHz |
− |
− |
typ. –146 dBm |
typ. –147 dBm |
| 40 GHz |
− |
− |
− |
typ. –141 dBm |
DANL with preamplifier ON
(R&S®FSU-B25), 1 GHz, 1 Hz RBW |
–162 dBm |
–162 dBm |
–162 dBm |
–162 dBm |
Displayed averagenoise level with preamplifier ON
(R&S®FSU-B24), 26 GHz, 10 Hz RBW |
− |
− |
typ. –166 |
typ. –166 dBm |
DANL with preamplifier ON
(R&S®FSU-B23), 26 GHz, 1 Hz RBW |
− |
− |
–150 dBm |
− |
| Trace detectors |
Max Peak, Min Peak, Auto Peak, Sample, RMS, Average, Quasi Peak |
| Total measurement uncertainty, f < 3.6 GHz |
0.3 dB |
| Display linearity |
0.1 dB (0 dB to –70 dB) |