CDMA Trainerkit comprises of detailed process of CDMA techniques of sending any information with security. One will get the knowledge of the basic mechanism used in the CDMA. The kit comprises of CDMA-DSSS (Direct Sequence Spread Spectrum) and CDMA-FHSS (Frequency Hopping Sprea d Spectrum) along with slow/fast hoping feature. One can also learn about BPSK Modulator and Demodulator and DSS S generation and reception.
GSM capability : GSM 900 /1800, EGSMGSM
In- circuit Programming and serial communication through PC.
Data services: Asynchronous,
8-bit-8 channel ADC with I/Ps from multi-turns potentiometers.
Transparent & NonTransparent modes. 14.4, K bits/s
16X2 LCD display
SIM Interface : 3 V, Testpoints,
8 I/Ps from DIP switches.
Key pad : Dedicated keys like: Alphabet, Numeric &Function for easy user interaction (By Using Programming)
8 O/Ps available on LED's
Four multiplexed 7-segment displays
RF Characteristics
4 push buttons for interrupt study
Receiver, EGSM Sensitivity : < -104dBm
Windows based driver software for programming.
DCS Sensitivity : < -102dBm
4x4 Matrix Hex Keypad
Selectivity @ 200 KHz : > +9dBc,
Stepper and D.C Motor Interface
Selectivity @ 400KHz : > +41dBc,
Buzzer Section
Dynamic range : 63 dB,
IR Transmitter/ Receiver
Inter modulation : >-43dBm,
LDR (Light Dependent Resistor).
C-channel rejection : ≥ 9dBc
LM- 35 Temperature Sensor
Nuvoton W78E052D C with ISP features
DTMF
8- bit single channel DAC
RF Receiver
All interrupts available on header.
Understanding The GSM Standard
Mobile Communication Using GSM
How GSM works
How A Call Is Made
Why A GSM Drains much power while travelling
Handover System
Calling Any Number Using GSM Module
Reading An SMS on LCD
Controlling The Appliances Using SMS