Samsung SCH-A562 User Manual

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123122GlossaryAirtime - Actual time spent talking on the wirelessphone. Most carriers bill customers basedon how many minutes of airtime they useeach month.Antenna - A device for transmitting or receivingsignals. The size and shape of antennasis determined, in part, by the frequency ofthe signal they receive. Wireless phonesand the base station must have antennas.Base Station - The fixed radio transmitter/receiverthat maintains communications withmobile radio telephones within agiven area. (Typically called a cell orcell site)CDMA - (Code Division Multiple Access) A spread-spectrum approach to digital transmission.With CDMA, each conversion is digitizedand then tagged with a code. The mobilephone deciphers only a particular code topick the right conversation off the air. Thetransmitted signal is just above noise levelacross the available bandwidth.Channel - Communications signals transmit alongpaths called channels.Codec - Compression & Decompression.Deactivation - The process of rendering a wirelessphone inactive.DTMF - (Dual-tone Multi-Frequency ) You send DTMFsignals when you enter numbers by pressingthe digit keys.EVRC - (Enhanced Variable Rate Codec) EVRC is anew global standard for compressing anddecompressing voice signals. EVRC uses alower bit rate (the number of bits sent persecond) than existing CDMA vocoders, whileproviding significant improvements in voicequality. This technology enables your phoneto provide superb voice quality whilebenefiting from the ability to process morecellular voice calls using less bandwidth thanthe voice codecs in CDMA networks today.Frequency - A measure based on time, as one ormore waves per second, in an electricalor light wave information signal. Asignal’s frequency is stated in cycles-per-second or Hertz (Hz).Hands-Free - A feature that permits a driver to usea wireless phone without lifting orholding the handset - an importantsafety feature for automobiles,tractors and most other motorizedvehicles.LCD - (Liquid Crystal Display) Commonly used torefer to the screen display on the wirelessphone.GGlloossssaarryy