HF Intruder Report Form

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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.

Intruder Monitoring by DARC e.V.

Intruder Monitoring by DARC e.V.

General data

Necessary information

Further information (not mandatory)

Please send us larger files, such as audio or video files, in a separate e-mail.
The address and some tips for making recordings can be found opposite.

Submit the report

I agree to the publication of my first name and/or call sign in the event of publication.

By sending this form, I agree to the DARC e.V. privacy policy of the DARC e.V..

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