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Interval signal
Characteristic sound used in broadcasting

An interval signal, or tuning signal, is a characteristic sound or musical phrase used in international broadcasting, numbers stations, and by some domestic broadcasters, played before commencement or during breaks in transmission, but most commonly between programs in different languages.

It serves several purposes:

  • It helps a listener using a radio with an analog tuner to find the correct frequency.
  • It informs other stations that the frequency is in use.
  • It serves as a station identifier even if the language used in the subsequent broadcast is not one the listener understands.

The practice began in Europe in the 1920s and 1930s and was carried over into shortwave broadcasts. The use of interval signals has declined with the advent of digital tuning systems, but has not vanished. Interval signals were not required on commercial channels in the United States, where jingles were used as identification.

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List of interval signals by station

  • Radio Belarus: "Motherland, my dear" (Belarusian: Радзіма, мая дарагая, Russian: Родина моя дорогая) by Vladimir Olovnikov [ru; be] and Ales Bachyla.
  •  China:
Audio playback is not supported in your browser. You can download the audio file.Interval signal for China National Radio and China Radio International Audio playback is not supported in your browser. You can download the audio file.Interval signal for Voice of the Strait Audio playback is not supported in your browser. You can download the audio file.Interval signal for DR P1 Audio playback is not supported in your browser. You can download the audio file.Interval signal for Deutsche Welle Audio playback is not supported in your browser. You can download the audio file.Interval signal for All India Radio
  • "Kazoe-uta" (数え歌, counting-out game).
  • "Sakura Sakura" (さくらさくら, cherry blossoms).
Audio playback is not supported in your browser. You can download the audio file. Audio playback is not supported in your browser. You can download the audio file.Interval signals for Radio Japan
  • Radio Nepal: A tune composed by Ustad Govinda Lal Nepali.
  •  North Korea
Audio playback is not supported in your browser. You can download the audio file.Interval signal for Voice of Mongolia Audio playback is not supported in your browser. You can download the audio file.Interval signal for Radio Pakistan
  •  Philippines:
  • Radio Mayak: Vibraphone version of Moscow Nights.
  • Radio Sakha: Excerpt from a Yakut folk song.
  • English programme: "Bow Bells".
  • Non-English programme, non-Europe: "Lillibullero", three notes tuned B–B–C.
  • Non-English programme, to Europe: four notes tuned B–B–B–E.
Audio playback is not supported in your browser. You can download the audio file.Audio playback is not supported in your browser. You can download the audio file.Interval signals for BBC World Service
  •  United States:
Audio playback is not supported in your browser. You can download the audio file.Interval signal for NBC Audio playback is not supported in your browser. You can download the audio file.Interval signal for Vatican Radio

Formerly used

  • Radio Tirana: Këputa një gjethe dafine (transmission intro) and the trumpet version of With Pickaxe and Rifle.
Audio playback is not supported in your browser. You can download the audio file.Radio Tirana Audio playback is not supported in your browser. You can download the audio file.Radio Österreich International Audio playback is not supported in your browser. You can download the audio file.Interval signal for Ö1 Audio playback is not supported in your browser. You can download the audio file.Radio Canada International Audio playback is not supported in your browser. You can download the audio file.Radio Peking
  • Trumpet version of Kupředu levá ("Forward, Left") by Jan Seidl
Audio playback is not supported in your browser. You can download the audio file.Radio Prague Audio playback is not supported in your browser. You can download the audio file.Radio Finland (Yle) Audio playback is not supported in your browser. You can download the audio file.Radio France Internationale Audio playback is not supported in your browser. You can download the audio file.Nordwestdeutscher Rundfunk
  • Reichssender Berlin [de]: Ending bars of Volk ans Gewehr, played on glockenspiel.
Audio playback is not supported in your browser. You can download the audio file.Reichssender Berlin
  •  East Germany
Audio playback is not supported in your browser. You can download the audio file.Radio Berlin International Audio playback is not supported in your browser. You can download the audio file.Deutschlandfunk
  • Radio Budapest: Excerpts from the suite 1848 by T.K. Polgar played on three trumpets and two cornets.
Audio playback is not supported in your browser. You can download the audio file.Radio Budapest Audio playback is not supported in your browser. You can download the audio file.Kol Yisrael Audio playback is not supported in your browser. You can download the audio file.Trans World Radio
  •  Netherlands
Audio playback is not supported in your browser. You can download the audio file.Radio Netherlands
  •  Norway
  • NRK P1: Motif from Sigurd Jorsalfar by Edvard Grieg.12
  • Radio Norway International (Utenlandssendingen [no] (in Norwegian), former international service of NRK): Symphony No. 1, Op. 26: Innover viddene. 1938, 51 by Eivind Groven
Audio playback is not supported in your browser. You can download the audio file.Radio Norway International (NRK)
  •  Poland
Audio playback is not supported in your browser. You can download the audio file.Radio Polonia Audio playback is not supported in your browser. You can download the audio file.Radio RSA Audio playback is not supported in your browser. You can download the audio file.Swiss Radio International
  • Radio Moscow (former international service of the Soviet Union):
Audio playback is not supported in your browser. You can download the audio file.Radio Moscow

Classical radio station WQXR-FM in New York City, during its ownership by The New York Times Company, played different variations of a classical infused gong with the ID read at the same time as "The Classical Station of the New York Times, WQXR, New York (And WQXR.com 2000–2009)

Numbers station interval signals

Numbers stations are often named after their interval signals, such as The Lincolnshire Poacher or Magnetic Fields after "Magnetic Fields Part 1" by Jean-Michel Jarre.

Further reading

  • Sennitt, Andrew G. (1997). World Radio and Television Handbook 1997. Billboard Books. p. 560. ISBN 0-8230-7797-7.
  • Sennitt, Andrew G.; David Bobbitt (December 2005). World Radio and Television Handbook 2006. Billboard Books. p. 608. ISBN 0-8230-7798-5.
Wikimedia Commons has media related to Interval signals.

References

  1. Archived at Ghostarchive and the Wayback Machine: stephensen (2009-10-19). "Pausesignal". Retrieved 2020-04-02 – via YouTube. https://ghostarchive.org/varchive/youtube/20211211/lpDQYdoIQ0w

  2. Archived at Ghostarchive and the Wayback Machine: Ο τσομπανάκος σήμα ΕΡΤ). YouTube. https://ghostarchive.org/varchive/youtube/20211211/Q_jNvmGDqwk

  3. Tuning into broadcast history. The Hindu BusinessLine, 15 October 2015. http://www.thehindubusinessline.com/catalyst/tuning-into-broadcast-history/article7765864.ece

  4. "'O'Donnell Abú'". RTÉ.ie. https://www.rte.ie/archives/exhibitions/681-history-of-rte/683-rte-1930s/290086-odonnell-abu-becomes-2rn-station-identification-signal-1936/

  5. "Pausenzeichen und ihre musikalischen Quellen". 8 October 2007. http://www.radioforen.de/index.php?threads/pausenzeichen-und-ihre-musikalischen-quellen.21902/page-3

  6. Frost, Jens Mathiesen (1983). World Radio TV Handbook. New York: Billboard Publications.

  7. Treiber, Alfred (2007). Ö1 gehört gehört : die kommentierte Erfolgsgeschichte eines Radiosenders (in German). Vienna: Böhlau. p. 218. ISBN 978-3-205-77495-2. OCLC 127107294. 978-3-205-77495-2

  8. "Radion väliaikamerkki". yle.fi. 4 July 2008. http://yle.fi/aihe/artikkeli/2008/07/04/radion-valiaikamerkki

  9. Frost, Jens Mathiesen (1983). World Radio TV Handbook. New York: Billboard Publications.

  10. "kalter-krieg-im-radio.de". www.kalter-krieg-im-radio.de. http://www.kalter-krieg-im-radio.de/index.php?er=18#

  11. nl:Pauzeteken https://nl.wikipedia.org/wiki/Pauzeteken

  12. http://www.ontheshortwaves.com/Articles/The_Interval_Signal.pdf [bare URL PDF] http://www.ontheshortwaves.com/Articles/The_Interval_Signal.pdf

  13. "- YouTube". www.youtube.com. https://www.youtube.com/watch?v=j2QQ6FH-ORM

  14. Archived at Ghostarchive and the Wayback Machine: RADIO INTERVAL SIGNALS - "Radio Polonia". YouTube. https://ghostarchive.org/varchive/youtube/20211211/ztH0_2ueIYc

  15. Frost, Jens Mathiesen (1983). World Radio TV Handbook. New York: Billboard Publications.

  16. "DX Listening Digest 7-043". http://www.worldofradio.com/dxld7043.txt

  17. Frost, Jens Mathiesen (1983). World Radio TV Handbook. New York: Billboard Publications.

  18. Radio Sweden interval signal Retrieved 2011-11-24. https://www.andromeda.se/

  19. BBC World Service (Europe) interval signal Retrieved 2013-10-09. http://www.portabletubes.co.uk/sitefiles/lilibulero.wav

  20. "Top deset pjesama o Titu". vijesti.ba. http://vijesti.ba/clanak/147926/top-deset-pjesama-o-titu