New B&A Radio Freq??

I overheard the NA dispatcher advising an MBCR train to use channel 38 a few days ago, so i put AAR 38 (160.680)in the radio and low and behold this morning the NA was talking away with track cars and commuter trains. On second trick all conversation seemed to be on 160.800, im puzzled..................

CSX upgraded their radio system to alleviate yard jobs, detectors, etc. from walking on orders being given to run thrus by the dispatchers. 160.800 is still the road freq., but 160.680 is the new dispatcher freq. for NA. Check: http://www.railroad.net/forums/viewtopic.php?t=37060