Up one level (MaxTrac index) Up two levels (Moto index) Back to Home : Introductory Information on the MaxTrac, Radius and GM300 series radios, the DeskTrac station, and the GR300, GR400, GR500, GR1225, R1225 and RKR1225 series repeaters. We offer complete access to all currently offered Motorola Service and User manuals.. Readbag users suggest that MOTOCAT.xlsx is worth reading. The file contains 258 page(s) and is free to view, download or print..