The most basic of terminology...
Flight and navigation instruments/displays are not "gauges".
How could you fit VOR2 if there isn't a VOR1?
Concur with above.
gauge
Pronunciation /ɡeɪdʒ/
See synonyms for gaugeTranslate
gauge into Spanish
NOUN
(
mainly US gage)
- 1An instrument that measures and gives a visual display of the amount, level, or contents of something.
‘a fuel gauge’