I don't know about all dispatch will be 453.600 , I understand ma-com is the radio co. I might be wrong on the name of radio co. that's all I know for now JIM'S MOWING SERVICE LLC WRIGHTSVILLE, PA 17368 [BUS] 717-252-0357 [FAX] 717-252-1245 INDUSTRIAL, FENCE, & RIGHT OF WAY SPRAYING