| 11. | It was concluded, however, that Allied direction finding was the source.
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| 12. | This was to confuse enemy aircraft who might be navigating using radio direction finding.
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| 13. | It is extremely hard to do " direction finding " and locate the interference.
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| 14. | The bearing of the signal could be determined using Watt's radio direction finding techniques.
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| 15. | BFRA was the host organization for the 2006 Amateur Radio Direction Finding World Championships.
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| 16. | Her navigation equipment included wireless direction finding, an echo sounding device and a gyrocompass.
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| 17. | Her navigation equipment included wireless direction finding, and echo sounding device and a gyrocompass.
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| 18. | Radio direction finding equipment was installed on several Coast Guard vessels in late 1930.
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| 19. | It has direction finding capability and is known to have a programmable threat library.
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| 20. | The British Admiralty's Room 40 maintained direction finding and interception of German naval signals.
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