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