Stay in touch without networking

When a cellular network is damaged, overloaded or simply out of range, the best way to deal with it is to use goTenna. This is a device that can create private networks that allow people to send messages to each other.

This device was formed in the US in 2012 during Hurricane Sandy . Federal Communications Agency said the storm had knocked down one-fourth of the state's mobile telecommunications transmitters across ten states, leaving people unable to communicate with each other in severe conditions. This. At this point, the Daniela brothers and Jorge Perdomo have created goTenna to help people communicate with each other on cell phones, even if cellular service has collapsed.

Gizmag magazine quoted Daniela Permodo as saying the goTenna service helps people communicate whenever, where their own way. The prototype of the device has been created at the Brooklyn hackspace NYC Resistor and continues to grow at the end of 2013. Realizing its benefits, there have been quite a few big tech firms involved.

The device itself is a compact 2-watt radio, but its range reaches nearly 90km. It uses low frequency radio waves that allow users to send text messages, share location via GPS. When fully charged, it can operate for up to 30 hours, if not used, the battery can last up to 18 months.

GoTenna is compatible with iOS and Android operating systems via low power bluetooth protocol. One strength is that it will continuously send out messages until it succeeds and informs the user. It can send messages in groups, send them in encrypted form and can even destroy messages for security.

GoTenna has dimensions of 147.3 x 25.4 x 12.7mm, weighs only 57gr, easily brings up the difficult terrain as buildings collapse due to natural disasters, hills ... And of course, Establish a network of friends and relatives for field trips. Gizmag said the retail price for a pair of goTenna is $ 299.