ELAN Home Systems ES370 manual 12FFT Plot Spectrum Analyser

2.12FFT Plot (Spectrum Analyser)

Each scope channel can be analysed using a 2048 point Fast Fourier Transform. The plot will be shown in a scalable window and will include all channels selected for analysis, in their respective colours. The lower limit for the dB plot is limited to –54dB. An on-screen cross-hair type cursor allows you to measure points on the spectrum.

The FFT time data can be “pre-shaped” using various window functions, available under the MATH tab. There is also a selection for dB or Linear plot types on the same tab. These settings are global for all FFTs.

Elan Digital Systems Ltd. 27 USBscope50 USER’S GUIDE Iss5