An option for the un-AM-Radio-informed:
As part of a smart phone software upgrade - if no cell signal is received after several tries in some short period of time - the smart phone screen automatically displays AM radio operating instructions (where to find an AM radio - vehicles, pocket radios etc. and how to operate AM radios [and that there will probably be static in the audio from far away/weak AM radio stations]).
Kirk Bayne
As part of a smart phone software upgrade - if no cell signal is received after several tries in some short period of time - the smart phone screen automatically displays AM radio operating instructions (where to find an AM radio - vehicles, pocket radios etc. and how to operate AM radios [and that there will probably be static in the audio from far away/weak AM radio stations]).
Kirk Bayne