Available Features (GSM/EDGE/EDGE Evo)

In addition to the standard set of VSA features, the 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 Evolution demodulator also has the following features:

Automatic detection of standard GSM, EDGE, or EDGE Evo bursts
Support for both normal symbol rate bursts and high symbol rate bursts
Automatic modulation scheme detection (GMSK Gaussian Minimum Shift Keying, AQPSK, 8-PSK Phase Shift Keying: A broad classification of modulation techniques where the information to be transmitted is contained in the phase of the carrier wave., 16-QAM Quadrature Amplitude Modulation, 32-QAM, HSR QPSK Quadrature phase shift keying, HSR 16-QAM, HSR 32-QAM)
Multiple burst synchronization modes:
- Training sequence syncronization (Training Seq (TSC))
- RF Radio Frequency: A generic term for radio-based technologies, operating between the Low Frequency range (30k Hz) and the Extra High Frequency range (300 GHz). power envelope detection (RF Amp)
- Separate phase and magnitude detection of training sequence (Polar Mod)
- Manual synchronization using triggering (None)
Parameter to correct mirrored (flipped) frequency spectrums (used to remove the effects of high-side mixing or complex conjugation mismatches in simulated data)
Optional measurement filter for multi-carrier signals
Summary trace with signal quality measurements: AM Amplitude Modulation - CW modulation using amplitude variation in proportion to the amplitude of the modulating signal. Usually taken as DSB-LC for commercial broadcast transmissions and DSB-SC for multiplexed systems./PM skew, amplitude droop, frequency offset, IQ offset, IQ gain imbalance, IQ quadrature skew, average EVM Error vector magnitude (EVM): A quality metric in digital communication systems. See the EVM metric in the Error Summary Table topic in each demodulator for more information on how EVM is calculated for that modulation format., peak EVM, magnitude and phase error, 95% EVM
IQ symbol point traces for measured IQ and reference IQ signals and for IQ phase and magnitude error
Optional removal of filter effects and constellation rotation for IQ symbol point traces
Per-symbol error vector trace
Averaging available for the pre-demodulation Spectrum trace and most numeric Summary table data:
- rms (video) - computes an rms average from each sweep up to the specified count
- rms (video) exponential - similar to rms (video) except that averaging continues past the average count with an exponential weighting
- continuous peak hold - holds the peak value for each point