Unid Fed 550A

[bpckty1]

Caught the following in SE Texas this morning, weak, most likely "skip/ducting", with my Pro-96:

408.0750 Motorola ID 550A control frequency

The following frequencies were affiliated:
409.6500
413.3500
413.8250

Comms were analog.
I was unable to id the base and step sizes before
the signals disappeared.

Has the Beaumont BOP changed/added frequencies?

 

[bpckty1]

Eureka, today's control channel is 408.3000, and my Pro-92 shows the system ID as 550A. It is the Beaumont Federal Corrections Facility. Does anyone have information as to the base/offset/step size?