With the new feature it is now possible to record a frequency spectrum. On the x-Axis the frequency is plotted and on the y-Axis the time. The picture below shows 150.2kHz – 151.7kHz and 1 minute recording time.
![Frequency-Time](https://radio-tracking.eu/wp-content/uploads/2016/08/withfilter-298x300.png)
The website for recording such an image is quite technical, but can be simplified. The data is directly loaded into R and can be analysed.
![Record-App](https://radio-tracking.eu/wp-content/uploads/2016/08/FFTW_Record-300x262.png)