what means VOR !!!!! the name and not function :-))

Hi Robert,I don't know really.But any search engine may answer like this typing VOR and glossary in the search field :VOR VHF Omnidirectional Radio-Rangehttp://www.aopa.ch/xgloss.htm#VAnd an explanation :A ground-based electronic navigation aid transmitting very highfrequency navigation signals, 360 degrees in azimuth, orientedfrom magnetic north. Used as the basis for navigation in theNational Airspace System. The VOR periodically identifies itselfby Morse Code and may have an additional voice identification feature.Voice features may be used by ATC or FSS for transmitting instructions/information to pilots.http://www.smartregs.com/data/sa623.htmLongbow

VHF omnidirectional range

I believe is stands for ... Very High Frequency Omnidirectional Radio/Range The radios operate in the 10Ghz range so that normal frequencies do not interfere.