direction finder การใช้

• You can't use the OBS; you use Automatic Direction Finder for NDBs.
• But the base's radio direction finder only had a single loop antenna.
• Visibility was poor, and weather conditions prevented obtaining radio direction finder bearings.
• In 1929 the navy set up a direction finder by the lighthouse.
• Radio direction finders have evolved, following the development of new electronics.
• For example, Francis Hubbard's sonar direction finder patent filed in 1921.
• A Gerkules sonar was also fitted in addition to various radio direction finders.
• The lifeboats also support the Simrad TD-L1550 VHF-FM radio direction finder.
• Each consisted of an omnidirectional transmitter an omnidirectional receiver and a direction finder.
• Using the direction finder ( DF ) the angle was measured.
• Instead, Aebi had a sextant for celestial navigation and a radio direction finder.
• The radio direction finder is the earliest form of radio navigation.
• The boat also supports the Simrad TD-L1550 VHF-FM radio direction finder.
• Some ships also received a Huff-Duff radio direction finder on a short mainmast.
• Lear developed radio direction finders, autopilots, and the first fully automatic aircraft landing system.
• There are variants, among the classes, of a radar antenna, interferometric direction finder, COMINT receiver.
• Two distinguishing external features of the UC-43 are the circular automatic direction finder R-985 engine.
• This consisted of a set of tracking stations using HF / DF radio direction finders.
• Anything but the crudest direction finders, however, were expensive luxuries for small-boat handlers until quite recently.
• He invented a series of naval instruments, including the direction finder called " Ullrings peileskive ".