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UHF receiver has -102dBm receive sensitivity

Posted: 19 Mar 2009 ?? ?Print Version ?Bookmark and Share

Keywords:receiver UHF? radio receiver? RX3G data?

Radiometrix RX3G

The Radiometrix RX3G is a PLL synthesizer-based miniature PCB-mounted UHF radio data receiver device. When used in conjunction with the manufacturer's matching TX3B-869-64 transmitters, it can facilitate the simple implementation of wireless infrastructure that is capable of supporting speeds of 64Kbit/s and transmission ranges up to 75m in-building or 300m over open ground.

The device has a receive sensitivity of -102dBm at 1ppm BER for 64Kbit/s operation and -108dBm sensitivity at 1ppm BER for 15Kbit/s operation. It incorporates a wide range Received Signal Strength Indicator (RSSI), which measures the strength of an incoming signal over a range of approximately 50dB. This allows assessment of the link quality and available margin with which the network can operate, so that a judgment on what distances can be supported is easy for the engineer to make. It requires a regulated 5V supply with ripple content of less than 100mV peak-to-peak.

Available for operation in the 868.3-, 869.5- and 869.85MHz European frequency bands, the product complies fully with both the EN 301 489-3 EMC (thanks to internal filtering) and EN 300 220-3 radio standards. It is suitable for one-to-one and multinode wireless link topologies, and can be employed in a wide variety of applications including automobile/building security, environmental monitoring, inventory tracking, remote industrial process control and computer networking. Thanks to its compact dimensions (47.0mm x 16.8mm x 2.5mm) and low power requirements (current consumption typically only 10mA) the RX3G is optimized for use in portable, battery-powered wireless design such as handheld terminals.

- Henri Arnold
EE Times Europe

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