169MHz ISM – Automatic Meter Reading
First in Europe

First in Europe to introduce new 169 MHz frequency SRD ​ receiver and transmitter for AMR and social alarm ​ applications in UK.​
STE has been successfully integrated ​ in market leaders who "designs for leading "tele-care" and​ "tele-health" solutions, supporting older people and those ​ with long-term needs to live independently, by effectively ​ managing their health and well-being".​
About AMR market, STE works with major companies to control ​ Consumption and management of data sent.
​ Thanks to 169MHz Technology is possible to make sensors pressure ​ or temperature for territorial control.​ ​ ​

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Wireless M-Bus

Wireless M-bus is derived from Wired M-bus specifications ​ initially written in the 90' for remote reading of gas, water ​ and electricity meters.Later the Wired M-bus was extended ​ and the radio variant Wireless M-Bus was introduced into the ​ European Standard EN 13757 as Part 4 and 5.​
The Standard currently consists of:​
• EN 13757 - 1 : 2002 Data exchange​
• EN 13757 - 2 : 2004 Physical and link layer​
• EN 13757 - 3 : 2011 Dedicated application layer​
• EN 13757 - 4 : 2011 Wireless meter readout​
• EN 13757 - 5 : 2009 Wireless relaying​
• EN 13757 - 6 : 2009 Local Bus​
Wireless M-bus is specified in EN 13757-4 to operate on the ISM ​ European frequency bands (868 - 434 - 169 MHz) and must ​ comply with the SRD (Short Range Devices) standard ​ EN 300 220-1 v2.4.1 (2012.01) and with the CEPT Recommendation ​ ERC REC70-03 (May 2013 edition) – Annex 1 and Annex 2.​ ​

The environment detection

Water and Gas Management ​
Transportation ​
Food Temperature Monitoring ​
Environmental monitoring ​
Tele-care / Tele-Health ​
Asset tracking​ ​

The RadioModem Solution

Wireless data transmission can benefit of a big choice of Tx, Rx ​ and Transceiver Integrated Circuits from many IC Manufacturers. Also on the market there is a huge offer of complete radio modules. These offers are very attractive but do not solve the problem of the ​ "Communication Protocol". RF communication protocol is a very ​ specialized Job: it is a mix of RF skill and data transmission theory ​ competence in a little-known field of electronic. Low current consumption applications (the case of battery ​ operated wireless remotized sensors) is another example where ​ high specialized solutions must be deployed. So the best choice ​ for easy solutions and fast to the market time is to employ ​ "Embedded Protocol Radiomodems". ​

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