| Noise generation system | Pseudorandom bit sequence (PRBS) M sequence | |
|---|---|---|
| Generator polynomial | x31+x30+x24+x16+1 | |
| Sampling frequency (Fs) | 500 kHz | |
| Maximum period | Tp=(231 – 1)/Fs = 4294.967 s | |
| Bandwidth limit filter | 4th order Butterworth LPF fc = 48 kHz | |
| Pseudo voice filter | Standard | Complies with ITU-T Recommendation G.227. |
| Spectral tolerance | Within ±1 dB (100 Hz to 10 kHz) | |
| Within ±3 dB (30 Hz to 20 kHz) | ||
| Output Level | Variable range | -70 dBm*1 (245 μVrms) to 1.0 dBm (869 mVrms) (with 600 termination) |
| Resolution | 0.1 dB | |
| Accuracy | Within ±2 dB (-70 dBm to 0 dBm) | |
| Display item | Output Level | -70.0 dBm to 1.0 dBm (1 mW, 600 Ω) |
| Output Impedance | 600 Ω balanced (BNC) | |
*1 dBm: 600 Ω termination, 1 mW = 0 dBm
