Other companies have aux sites licensed to other stations. Univision has an aux on Miguel, but they use it often for 106.5 when it gets shut off at Emerald Hills, but the aux license is ONLY for 102.9. Oh wait according to Gleason that is ok because they are a spanish broadcaster LOL.
KLNV has an auxiliary license... from the FCC.
Licensee: UNIVISION RADIO LICENSE CORPORATION
Service Designation: FS Auxiliary station (backup for the main station)
Channel/Class: 293B Frequency: 106.5 MHz Licensed
File No.: BLH-19910612KA Facility ID number: 51515
CDBS Application ID No.: 162218
32° 43' 18.00" N Latitude Site in Mexican Border Zone
117° 04' 12.00" W Longitude (NAD 27) Distance to Border: 20.0 km
"Spanish Broadcasters" are in Spain, or, in the case of Televisa Radio in Mexico, owned by Spaniards.
I don't believe it has ever been discussed that Spanish language
broadcasters on the US mainland might be held to or operate under different standards. It's long been considered that Puerto Rico has been regulated with a bit of benign neglect outside of the technical area, but that is something that originated on M Street, not at the station level.