It is a VOR ( whatever that is ) ....... obviously something to do with guiding aircraft ..... see below
Pollensa VOR is located on the northwest part of Mallorca also known as Cap de Formentor. For enroute use, it forms a crossingpoint for four ATS-routes: UL129, UN850, UN855 and the UW7. The VOR has a role in some standard arrival procedures to Palma de Mallorca airport (especially the ones connecting to routes from Barcelona) but is also used by ATC for quick vectoring of other inbound traffic from north or northwest to the 24L runway, if in use. To reach the site, you must be a little adventuorous. Take the PM221 road running from Port de Pollensa to Cap de Formentor itself. When you reach the viewingpoint of Mirador des Colomer you are almost there. Almost, because you will have to get uphill (POS is 1168 feet above sealevel) to actually view the beacon. East of the PM221 and connecting to the parkingspot of Mirador des Colomer is a terribly hardend sideroad (full of holes, don't go here after sunset!) which leads to the "Torre". This is an old tower standing on a hill and very close to this point is the Aena-transmitter site of POS. From the Torre you will we rewarded with a great view on both the cape, the sea and ofcourse the VOR-station
Oh is there no end to my new found knowledge ........ for anyone who is interested in what a VOR is
Very High Frequency Omni Directional Range. A ground-based electronic navigation aid transmitting very high frequency navigation signals, 360 degrees in azimuth, oriented from magnetic north. Used as the basis for navigation in the National Airspace System. The VOR periodically identifies itself by 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
