1) Dimensional instrument
Found on
https://www.crosswordclues.com/clue/telegoniometer
A Telegoniometer (a type of Goniometer) is a device for varying the phase relationship(s) among two or more antennae, in an array for purposes of steering the directionality of the array, without physically moving the antennae. This is commonly used for radio direction finding, providing very precise bearings from a sensitive fixed site. A Telegon...
Found on
http://en.wikipedia.org/wiki/Telegoniometer
No exact match found.
