CDMA-Direct Sequence Spread Spectrum (DSSS) Trainer

Scientech Mobile Phone Trainer ST2132 provides basic theory & working fundamentals of a 2G handset based on the most popular handset Nokia 3310/ 3315. It provides network, power supply, charging circuit & user interface circuit's for their detailed block wise study. Features Frequency measurement and band verification GMSK signals GSM data rate Audio signals System clock Power supply measurement Study of different operation mode Charging phenomena User interface control signals LCD and Keypad study SIM card operation Battery identification Switching application * Desktop Mobile *. Experiments that can be performed Study and measure frequency band. Study and measure the GMSK signals such as Tx I /Q, Rx I /Q. Study and observe the system CLK. Observation of Audio signal. Study and measure the Power supply. Study of charging phenomena with fault insertion. Study and measure PWM signal of UI circuit such as Vibrator, LED, Buzzer. Measurement of LCD with fault insertion. Keypad study with fault insertion. Observe and measure the SIM Card CLK with fault insertion.