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VPL Infotech & Consultants

GSM Trainer

GSM Trainer

Business Type Manufacturer, Exporter, Supplier
Type Digital
Shape Rectangular
Color Metallic
Click to view more

Preferred Buyer From

Location Worldwide

Product Details

6 Months

The GSM Trainer, offered by us, is based on 89C51 family based processor. Our GSM Trainer features 40x2 LCD for display interface and keyboard entry through IBMPC keyboard. GSM Trainer has mic input with conditioning circuit and hardware block for doing various experiments.


  • Audio output on Headset
  • Keyboard matrix (5x4) for scanning the key codes
  • With LCD of 40x2
  • SIM socket
  • Buzzer
  • Understanding of various functions with the use of AT commands
  • Various SIM signals like card read, card clock, card presence, card data are available for debugging
  • With buzzer provided for incoming call
  • External antenna for capturing the incoming signal
  • Various examples using AT commands are given for phone dialing, SMS Read, write, Phone book, ADC, General purpose I/O lines, keyboard interface to modern are given
  • Can be operated through PC as well as standalone system directly
  • In-built power supply

GSM Parameters

  • Multiple Access Method  TDMA/FDMA
  • Uplink Frequencies (Mhz)  933-960 (basic GSM)
  • Downlink frequenices (Mhz) 890 -915 (basic GSM)
  • Duplexing  FDD
  • Channel spacing, kHz-200
  • Modulation  GMSK
  • Portable TX Power, Maximum / average (mW)  1000/125
  • Power control, handset and BSS- Yes
  • Speech Coding and rate (kbps) RPE- LTP / 13
  • Speech Channels per RF channel  8
  • Channel rate (kbps)270.833
  • Channel coding  Rate ½ Convolution
  • Frame duration (ms) -4.615

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