Category: M2M tweets

Tweets about M2M (Machine to Machine), Telemedicine and other wireless related topics.

Low power GPS patch antennas

GPS antenna general data Dimensions (mm): 10×10, 12×12 , 13×13, 15×15, 18×18, 25×25 Temperature range: -40o C to +85o C Coaxial cable GPS: 80 mm connector U.FL, MMCX, W.FL, H.FL, GSC Other cable length, cable type or coaxial connector upon request Customised colour of plastic enclosure or customised frequency range upon request Technical data GPS […]

Twitter Weekly Updates for 2010-03-18

Biodegradable Transistors. Electronics that break down in the body for temporary medical implants and drug delivery http://ow.ly/1bCz4 # Approval RTT&E EN 301489-1, EN 301489-7 & EN 301511. Why to pay € 11437 if you can get it for € 4400 us well? http://ow.ly/1gZGg # The Paper Battery. A dip in nanotube ink turns office paper […]

GSM Audio Codec & DTMF. Why the Half Rate Codec could force trouble?

The DTMF signal is generated by a separated source, typically a landline (corded) phone, and sent to the input lines of the module (Uplink path). The frequencies couples, sent on the voice channel , are digitised, encoded and sent by the digital transmission system. In the receiving device the signal would be reconstructed, but since […]