United Airlines Switching to MOTOTRBO

United Airlines, which uses 460.7250 at many airports around the country, appears to be switching their radio operations to MOTOTRBO digital. They are keeping the same frequency, but adding the emission designator for MOTOTRBO to their licenses. I've confirmed that digital is in use at Philadelphia. The license for 460.7250 has been modified recently to allow for MOTOTRBO at Reagan National, and a quick check of the FCC database shows that they've modified several other licenses for MOTOTRBO use at various airports. United uses a 900 MHz analog trunked system at Dulles (one of their hubs), and as far as I know, there have been no changes to that. The 460.7250 frequency is typically only used at airports where United does not have major operations or is not the dominant carrier at the airport.