... 143 dB10Frequency Weighting.Parallel (simultaneous) A, C, Z. Realized by digital filtering11Time WeightingParallel F, S, I, Peak C+, Peak C-12A ... Ldn22Real-time spectrum analysisFulfils standards: IEC 61260 Class 1Filter type: Digital band-pass filterMeasuring Parameters: Lfmi, Lfmeq,1s, Lfmeq,T, Lxyp ... Wave record time: 10 s or 20 s6. Bandwidth of digital filters:1/1 OCT or 1/3 OCT7. Center Frequency ...