More about GSM (31)

| Intel Labs recently demonstrated new technology called 'Common Sense': a small device that measures carbon dioxide, carbon monoxide and ozon...

| Most people know of the visualisations in Winamp, Windows Media Player, XMMS and similar programs. They show hypnotising and colourful effec...

| A fieldstrength meter is all you need for a quick go/non-go check on the transmitter section (TX) in a GSM phone (900 MHz or 1800 MHz), a DE...

| Today’s GSM phones have some many bells and whistles that many of us are confused (to say the least) by the plethora of menus and submenus....

| Using a simple SMS message sent from your GSM phone, two mains powered loads may to be switched on and off independently, or programmed to d...

| Interfacing your own equipment to GSM devices has been made difficult by the manufacturers because they don’t use standard connectors, very...

| A programmed BasicCard is used as the starting point in this article. We show how this ‘SIM card emulator’ can be adapted to test the most i...

| Those small indicators that either flash or vibrate when there is a mobile phone call are well known by now. But how can they monitor the ac...

| It’s often the small, everyday things that turn out to have interesting features when you examine them more closely. In any case, here you c...

| Although the adverts would have you think that you can use your mobile phone absolutely everywhere, probably every owner of a GSM phone...