FWIW, I have both the ARC factory book and the TM for the Type 12 system, to include the UHF equipment. I also have books on the ARN-30, the ARN-30A, B, and C. Books on the ARN-30D, and the ARC R-34A rec. and T-25A tx. My ARC 210 book is missing and fear it was loaned but never returned! Jeep K3HVG