介绍:
路透社:如果你的手机没信号,不在服务区,而你又遇到紧急状况需要打电话怎么办?有了下面这个小设备,你就可以轻松解决这个问题.
Reuters: Your cell service down, or maybe you're roaming out of range? Whatever the reason, being unable to send text messages is frustrating. There is a little device could end that problem.
Called the goTenna, it creates its own network operating on low-frequency radio waves, enabling users to exchange text messages without relying on cell towers.
goTenna Co-founder and CTO Jorge Perdomo explains:
"We didn't want to reinvent what chat is, we just wanted to enable it in places where it wasn't possible before."
Perdomo and his sister Daniela developed the idea after Hurricane Sandy wiped out one quarter of the cell towers in New York and many people couldn't get cell service or wifi.
The Brooklyn-based team got to work developing a pocket-size transmitter. Inside is a tiny 2-watt radio and a built-in antenna that uses low-frequency radio spectrum to communicate directly with another goTenna.
When users type a message on the goTenna app installed on their phone, it gets sent over bluetooth to the goTenna device, and is then turned into a radio frequency transmission, which is sent to the recipient.
Co-founder Daniela Perdomo says goTenna also has unique mapping features built into the app.
"We leverage the GPS on your phone or ipad -- and GPS on your phone always works even if you don't have service. However, if you don't have service all it is a blue dot on a blank screen. What goTenna does is enable you to contextualize the blue dot on an off-line map, which then you can share with anyone else who has goTenna."
