Tandy, Receiver, models:

RADIO SHACK Realistic Patrolman pro-2	Owner'S Manual
Radio Shack Realistic PATROLMAN PRO-3A	Owner'S Manual
Radio Shack Realistic PATROLMAN PRO-9	Owner'S Manual
Radio Shack Realistic PRO-2021	Service Manual
Radio Shack Realistic Pocket-Scan PRO-6	Owner'S Manual