HF Intruder Report Form
How to submit an audio recording
Audio recordings are very helpful to us in the analysis. They have to be in a certain format to be processed by us.
- Set SDR receiver to sufficiently large bandwidth.
- USB operating mode.
- Set the frequency so that the signal is in the middle of the bandwidth, i.e. easily audible.
- Record the signal with your computer as audio for at least 1 minute.
- Save your recording as a wave file (*.wav).
- Go to our upload page and send us your recording.