I heard some Nexedge transmissions on 160.515 today, so I searched the FCC Web site for licensee info.
Transportation Technology Center, Inc, a Railroad Research and Test Facility in Pueblo, is in the process of replacing its analog narrow band radio system with an NXDN very narrowband system. They need frqs with which to test this system in NXDN mode while the TTCI operates on it analog narrowband system.
Here are their STA test frqs:
160.5150
160.5750
161.4300
161.5050
160.5150
160.5750
161.4300
161.5050
160.5150
160.5750
161.4300
161.5050
173.2250
173.3250
173.3500
173.3750
The FCC has made inquiries to TTCI about their Special Temporary Authority request, full details at:
ULS Application - Industrial/Business Pool, Trunked - 0005423994 - Transportation Technology Center, Inc