In my area, southeastern British Columbia, many commercial repeaters at different sites simulcast the same audio, due to the mountainous terrain. RCM Police, Emergency Health Services (ambulance) and Fire Departments use multiple repeaters or repeater extenders to attain greater coverage. It would be nice to have a scanner with the capability to associate 2 or more channels and have the scanner lock onto the channel with the best signal. This may not be a useful feature on a base unit but would be handy in a mobile scanner. Does such a feature exist on any conventional scanner?