About GSM/EDGE/EDGE Evolution Modulation Analysis

In addition to Digital Demodulation, 89601B-AYA/89601AYAC adds a specialized GSM Global System for Mobile Communications: Originally developed as a pan-European standard for digital mobile telephony, GSM has become the world’s most widely used mobile system. It is used on the 900 MHz and 1800 MHz frequencies in Europe, Asia and Australia, and the 1900 MHz frequency in North America and Latin America./EDGE Enhanced Data for Global Evolution: A technology that gives GSMA and TDMA similar capacity to handle services for the third generation of mobile telephony. EDGE was developed to enable the transmission of large amounts of data at a high speed, 384 kilobits per second. (It increases available time slots and data rates over existing wireless networks.)/EDGE Evo demodulator to the 89600 VSA software. This demodulator can automatically detect the type of burst, modulation scheme, and training sequence code.

The GSM/EDGE/EDGE Evolution demodulator used in the VSA does not require external filtering, coherent carrier signals, or symbol-clock timing signals. The demodulator will lock to the carrier and to the defined symbol rate. The demodulator has filters needed for GSM/EDGE/EDGE Evolution measurements built-in and selects the appropriate one depending on the current burst and the setting of the HSR Pulse Shape Filter parameter.

The demodulator uses your signal to generate an ideal signal (called reference I/Q). The demodulator compares the measured signal to the reference signal to quantify and locate errors in your signal.

I+jQ baseband measurements can be performed with hardware that supports a baseband channel configuration (see 89600 VSA Measurement Platforms). IQ baseband measurements can also be performed on data from a file or Keysight's Advanced Design System.