I have recently read a book about Douglas BADER. This pilot has lost his legs (because of accident in 1931) but after (thanks to his single-mindedness) he takes up the "broomstick" again and became a ace with ~30 victory... After he is shot and captured by the enemy: the Germans. Germans contact the UK in the "International frequency" to send prostheses. The Germans propose a deal but the RAF drops it during a bombing raid with 11 messerschmitt shot in the process.(at the same time)

What information are available about this frequency? (name, usage, frequency).

Have you question about this story? Bonus : douglas bader

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    $\begingroup$ It would be helpful if you could provide the source of that story $\endgroup$ Mar 29, 2020 at 16:50
  • $\begingroup$ the page on the book? $\endgroup$
    – L'aviateur
    Mar 29, 2020 at 16:59
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    $\begingroup$ So what do you want to know? What is the frequency? Who invent the frequency? Which side use this frequency? Etc. please state your question clearly. $\endgroup$
    – vasin1987
    Mar 29, 2020 at 17:21
  • $\begingroup$ @L'aviateur: Which book is that? $\endgroup$
    – DaG
    Mar 29, 2020 at 20:15
  • $\begingroup$ This is about HISTORY, not aviation. That said, any shortwave news broadcast would be monitored in Great Britain, so putting the request on the news program would be sufficient. $\endgroup$
    – Ralph J
    Mar 29, 2020 at 21:47

1 Answer 1


The international distress frequency has been 500 kHz, since 1908.
Copious details are at https://en.wikipedia.org/wiki/500_kHz.

During the war, this frequency was used for reporting distress and for monitoring distress, by the Germans and the British. It was also used before and after the war for this purpose, by many countries, by aviators and mariners and others.

  • $\begingroup$ Is The communication possible between uk and germans during the war on this frequency? $\endgroup$
    – L'aviateur
    Mar 29, 2020 at 18:17

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