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2010-09-22 14:35
Wideband Code-Division Multiple Access or Wideband-CDMA usually written or W-CDMA, is third generation technology (3G) to GSM, also called UMTS (Universal Mobile Telecommunication System). T… Read More
2010-09-22 14:34
EV-DOEVDO, is also known as EV-DO, 1xEV-DO 1xEvDO and is a standard in high-speed wireless broadband. EVDO stands for "Evolution, Data-only" or "Evolution, Data Optimized". The term official… Read More
2010-09-22 14:28
GSM network architectureOverall, the network element in the architecture of a GSM network can be divided into: 1. The Mobile Station (MS) 2. Base Station Sub-system (BSS) 3. Network Sub-s… Read More
2010-09-22 14:24
GSM Technical SpecificationIn Europe, GSM was originally designed to operate at a frequency of 900 Mhz. At this frequency, the frequency of its use uplinks 890-915 MHz frequency, while the f… Read More
2010-09-22 14:22
History and development of GSMMobile communications technology has actually been developed and are widely used in the early 1980s, including C-NET system developed in Germany and Portugal, b… Read More
2010-09-18 01:07
Soft HandoffSoft handoff (or soft handover) is one of the innovations in mobility which may be done with this CDMA.Hal technologies related to engineering or moved from one cell to another w… Read More
2010-09-18 01:06
Features CDMA * A narrow band message signal (narrowband) signal will be multiplied by the spread of broadband (wideband) or pseudonoise code * Each user has a pseudonoise (PN) code it… Read More
2010-09-18 01:04
CDMA BenefitsCDMA technology has several advantages when applied in a cellular system. Benefits include: * Requires only one frequency is needed for some sectors / cell * Does not requ… Read More
2010-09-18 01:03
Code division multiple access (CDMA) is a form of pemultipleksan (not a pemodulasian scheme) and an access method that divides the channel simultaneously is not based on time (as in TDMA) or… Read More
2010-09-13 11:50
Analog signalAnalog signal is a term used in engineering (especially electrical engineering, information engineering, and technical controls), ie a change in scale and in time or space, and… Read More
2010-09-13 11:48
Cable ModemCable Modem (Cable Modem), is the hardware that connect your PC with a cable TV connection. This cable TV network can be used to connect to the internet with a maximum speed of 27… Read More
2010-09-13 11:47
The types of modems * Modem 3GP * GSM Modem * Modem is an analog modem that converts analog signals into digital signals * ADSL Modem o Modem ADSL (Asymetric Digital Sub… Read More
2010-09-13 11:45
Modem acronym derived from modulator demodulator. Modulator is a part that transforms the signal into the information signal (carrier) and ready for delivery, while the Demodulator is the pa… Read More
2010-08-28 20:47
CRC (Cyclic Redundancy Check) is an algorithm to ensure data integrity and error checking on a data to be transmitted or stored.The data to be transmitted or stored to a storage medium havin… Read More
2010-08-28 16:35
Designing equipment that uses USBTo make an equipment that can communicate with the USB protocol do not necessarily need to know the details of the USB protocol. Sometimes even do not need k… Read More
2010-08-28 16:34
USB SignallingUSB is a host-centric bus where the host / terminal stem started all transactions. The first package / markers (tokens) produced by the host beginning to clarify whether the pa… Read More
2006-06-07 11:16
Encoding Technique EDGEEDGE 9 types of encoding techniques, the MCS (Modulation Coding Scheme) 1 up to MCS9. While GPRS uses four pieces of encoding technique, ie CS (Coding Scheme) 1 up to… Read More
2006-06-07 11:16
In the EDGE modulationTo obtain higher transfer speeds than GPRS uses GMSK modulation (Minimum Shift Keying gausian), EDGE uses a different modulation technique with GPRS is 8PSK (8-Phase Sh… Read More
2006-06-07 11:16
EDGE Speed ProcessEDGE is a way to increase data speeds on GSM radio link. By using the technique of modulation and coding schemes that are different from the previous GPRS system, and by do… Read More
2006-06-07 11:16
Implementation of EDGEAs the name suggests, EDGE (Enhanced Data rates for GSM Evolution), is a technology developed with the basic technology for GSM and GPRS. An EDGE system using devices d… Read More

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