Frequency Control Devices
Most of electronic devices in our life now become wireless, such as radio, mobile phone, PDA, GPS, garage door openers, headsets, computer mice, satellite television, etc. Wireless operations permits services, such as long range communications, that are impossible or impractical to implement with the use of wires. The term is commonly used in the telecommunications industry to refer to telecommunications systems (e.g. radio transmitters and receivers, remote controls, computer networks, network terminals, etc.)



