I dont know all of the breakdown myself.
I am researching for a breakdown of Min III also.
I can tell u that,, A03....... the 03 is a VHF.
the YMS,,,,,, not sure what it stands for, but I did find a place that said you only see that on Minitor III's
thats about all i can tell u from memory and what i have found.
Hope that maybe helps a little
Tom