| Gruppenhorchgerät (GHG) | |
| Location of Gruppenhorchgerät (GHG) Microphones on Bismarck & Tirpitz | |
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| Gruppenhorchgerät (GHG) Microphones - Close Up | Gruppenhorchgerät (GHG) - Information |
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The Gruppenhorchgerät (GHG) is a Sound Locator System. |
| Manufacturer of the Gruppenhorchgerät (GHG) | |
| Atlas-Werke, Bremen, Germany | |
| Type of the Gruppenhorchgerät (GHG) | |
| AN 301m | |
| Number of Microphones installed | |
| 2 x 62 crystal microphones (port - and starboard bow) | |
| Purpose of the Gruppenhorchgerät (GHG) | |
| The purpose of the Gruppenhorchgerät (GHG) was to detect noise from submarines, surface ships and torpedoes. With the Gruppenhorchgerät (GHG) it was possible to detect a vessel's engine type, propeller speed and course of vessel or torpedo. | |
© John Asmussen, 2000 - 2014. All rights reserved.