What is a radio?
A radio is a method or a device of transmitting electrical energy from one place to another without using any kind of direct, wired connection. That’s why it’s often called wireless. The equipment that sends out a radio wave is known as a transmitter, while a receiver receives the wave.
Types of Radio
- AM Radio: AM stands for Amplitude Modulation. In AM, a radio wave known as the “carrier” or “carrier wave” is modulated in amplitude by the signal that is to be transmitted. The frequency and phase remain the same. AM radio having frequency that ranges from 535 to 1705 KHz (OR) Up to 1200 bits per second.
- FM Radio: FM stands for Frequency Modulation. In FM, a radio wave known as the “carrier” or “carrier wave” is modulated in frequency by the signal that is to be transmitted. The amplitude and phase remain the same. FM radio has a frequency that ranges in a higher spectrum from 88 to 108 MHz. (OR) 1200 to 2400 bits per second.
A-GPS (Assisted GPS) • A2DP (Advanced Audio Distribution Profile) • AAC (Advanced Audio Coding) Accelerometer • Airplane Mode • Alarm Clock • AMOLED (Active-matrix organic light-emitting diode) • Analog Technology • Android Operating System • ANT+ • Antenna • Aperture • APN (Access Point Name) • Apple iOS • Apple Pay • aptX • Autofocus • AVRCP (Audio/Video Remote Control Profile)
Calculator • Calendar • Camera • Call Alert • Capacitive Touchscreen • CDMA (Code-Division Multiple Access) • Cellular Network • Chipset • cHTML (Compact HyperText Markup Language) • Color • CPU (Central Processing Unit)
Earphone Jack • EDGE (Enhanced Data for Global Evolution) • EDR (Enhanced Data Rate) • EGPRS (Enhanced General Packet Radio Services) • EGSM (Extended GSM) • Emoji • EMS (Enhanced Message Service) • eSIM • EV-DO • External Display
Galileo (Global Navigation Satellite System) • GB (Gigabyte) • GBPS (Gigabits Per Second) • Geo-tagging • GLONASS (Global Navigation Satellite System) • GPRS (General Packet Radio Service) • GPS (Global Positioning System) • GPU (Graphics Processing Unit)
Maemo OS • mAh • Mass Storage • Material • MB (Megabyte) • Mbps (Megabit per second) • MeeGo OS • Megapixel • Megahertz • Memory Card Slot • microUSB • MMS (Multimedia Messaging Service) • Mobile Games • MHL (Mobile High-Definition Link) • MIM (Mobile Instant Messaging) • Mobile Application • Mobile Browser • Mobile messaging • Modem • MP3 (MPEG Layer 3) • MPEG (Motion Picture Experts Group) • MPEG-4 video • Multitouch • Music playback time (battery life) • Music Player
Screen Protection • Screen Resolution • Screen Size • Screen Type • Screen-To-Body Ratio • Secondary Camera • Sensor • Side keys • SIM Card • SIM Lock • Single-Band • Smart Watch • Smartphone • SMS (Short Messaging Service) • soft keys • Soft Reset • Special Dial • Stand-by time (battery life) • Stereo Speakers • Streaming • Stylus • SVGA (Super Video Graphics Array)