direction finder in a sentence

Examples

1. Instead, Aebi had a sextant for celestial navigation and a radio direction finder.
2. The radio direction finder is the earliest form of radio navigation.
3. The boat also supports the Simrad TD-L1550 VHF-FM radio direction finder.
4. Some ships also received a Huff-Duff radio direction finder on a short mainmast.
5. Lear developed radio direction finders, autopilots, and the first fully automatic aircraft landing system.
6. There are variants, among the classes, of a radar antenna, interferometric direction finder, COMINT receiver.
7. Two distinguishing external features of the UC-43 are the circular automatic direction finder R-985 engine.
8. This consisted of a set of tracking stations using HF / DF radio direction finders.
9. Anything but the crudest direction finders, however, were expensive luxuries for small-boat handlers until quite recently.
10. He invented a series of naval instruments, including the direction finder called " Ullrings peileskive ".