| 21. | "U-1308 " s Direction Finder Antenna Loop was located on the starboard side of the bridge.
|
| 22. | The pilot instead relied on visual reference, using the copilot's automatic direction finder ( ADF ).
|
| 23. | Shutting down sooner reduces the risk of the operator being found by enemy radio direction finders.
|
| 24. | RU-21A's carried AN / ARD-22 direction finders.
|
| 25. | Sun compasses, which use polarized light as a direction finder, are not unknown in the natural world.
|
| 26. | He invented a number of other devices, including a microwave-based direction finder used during NASA's moon program.
|
| 27. | The most modern equipment was sought out including the Hooven Radio Direction Finder ( licensed to Bendix ).
|
| 28. | A radio direction finder ( RDF ) is a device for finding the direction to a radio source.
|
| 29. | Once at Tompkinsville, the ship's crew continued training and calibrating their equipment, especially the ship's radio direction finder.
|
| 30. | The associated high frequency direction finder ( HF / DF ) was carried on a short pole mainmast aft.
|
