A western person may use the following, which all use slices of the radio spectrum that are typically arbitrated at the national level, although typical users will be unable to identify the radio bands or modulation used:

* cellphone
* cordless phone
* garage door opener
* car key remote control
* broadcast TV, FM, AM
* atomic time broadcast
* radar for aircraft navigation
* police radar & emergency communications (rarely)
* GPS
* satellite TV broadcast reception; also backend signal dissemination
* microwave oven
* bluetooth
* wifi
* RF badge, passport, etc
* RFID product tags
* wireless gas token