Example image of eyePlorer eyePlorer map for 'Mobile telephony': Base station Cell site Cellular network Mobile phone Public switched telephone network Satellite phone American Telephone & Telegraph Nippon Telegraph and Telephone Nokia Communicator Microwave Radio Transceiver Network switching subsystem Mobility management Handoff Mobile network operator Coverage (telecommunication) W-CDMA Frequency range Effective radiated power Cellular repeater Parabolic antenna Yagi antenna Hong Kong China Prepaid mobile phone Verizon Communications Nickel Reuters Text messaging Brown University Providence, Rhode Island Rhode Island Qantas Emirates (airline) Northwest Airlines Federal Communications Commission Filling station University of Pittsburgh Cancer Institute Europe United States Traffic collision Relative risk Cohort study Blood alcohol content University of Utah Canadian Automobile Association Standard deviation University of Illinois system California