I have the following CSX railroad channels listed for Robertson County, Tennessee:
160.305 mhz AAR #13
160.35 mhz AAR #16
160.395 mhz AAR #19
160.785 mhz AAR #45
160.89 mhz AAR #52
160.98 mhz AAR #58
161.37 mhz AAR #84
161.415 mhz AAR #87
161.43 mhz AAR #88
Sorry, there were no assignments listed for these channels, also check Botes dispatcher desk project thread on this forum for possible additional channels. CP Rail & any other railroads transiting this county are more than likely transmitting on the CSX channels seeing that it's the host road. If you have a scanner with at least 100 available channels, just program the entire AAR railroad channel bandplan into it & work from there. take care.
Manny