Skyear

SkyEar by Usman Hoque combines colorful LEDs, cell phones, EM radiation sensors, and helium balloons. Taking the ambient EM level as given, people 'called in' to interfere locally.

Explanation from Hoque Design.
Project images and videos from the event website.

Field Test Mode

You can open up your phone's technical settings (Field Test Modes), including a better gauge of your service level.

"Signal strength is a number ranging from roughly -50 to -105 (your phone may show as a positive number). Closer to zero means a better signal, i.e. - 50 (roughly full signal) is better than -105 (roughly no signal)."

Find out the code for your phone in this PDF from WPSAntennas.com.

We'll be checking out our own cell phones, a Motorola RAZR and an LG enV2 (VX9100), in the coming week.