How does a GSM module work?

A customised Global System for Mobile communication (GSM) module is designed for wireless radiation monitoring through Short Messaging Service (SMS). This module is able to receive serial data from radiation monitoring devices such as survey meter or area monitor and transmit the data as text SMS to a host server.

How does a GSM unit work?

GSM technology was developed as a digital system using the time division multiple access (TDMA) technique for communication purposes. A GSM digitizes and reduces the data, then sends it down through a channel with two different streams of client data, each in its own particular time slot.

How GSM works explain with architecture?

Working : GSM is combination of TDMA (Time Division Multiple Access), FDMA (Frequency Division Multiple Access) and Frequency hopping. Initially, GSM use two frequency bands of 25 MHz width : 890 to 915 MHz frequency band for up-link and 935 to 960 MHz frequency for down-link. Later on, two 75 MHz band were added.

What is the difference between SIM800 and SIM900?

SIM800 is the newly released alternate to SIM900 having the same functionality as SIM900 with additional Bluetooth/FM support. Hardware Differences : Voltage range : SIM900 supply voltage ranges from 3.2V to 4.8V whereas SIM800 has reduced supply voltage range of 3.4V to 4.4V.

How do I power up a GSM module?

BOOTING UP THE GSM:

  1. Insert the SIM card to module and lock it.
  2. Connect the adapter to module and turn it ON!
  3. Now wait for some time (say 1 minute) and see the blinking rate of ‘status LED’ (GSM module will take some time to establish connection with mobile network)

Where is GSM module used?

A GSM modem or GSM module is a device that uses GSM mobile telephone technology to provide a wireless data link to a network. GSM modems are used in mobile telephones and other equipment that communicates with mobile telephone networks. They use SIMs to identify their device to the network.

What are the three main parts of GSM architecture?

GSM network architecture elements Network and Switching Subsystem (NSS) Base-Station Subsystem (BSS) Mobile station (MS)