GREAmerica PSR-100 GRE PSR-100 200 Channel Standard Handheld Analog Scanner 5 pre-programmed bands (Marine, Fire Dept/Police Dept, Air Ham, WX) for one touch search QUICK PROGRAM when receive signals up to 200 channels 45 channels/sec. scanning rate and 80 steps/sec. searching rate "Zeromatic" tuning system 200 channels automatic scanning for VHF to UHF band