Long-range transceiver has split personality

Available from LPRS, the RDT868 transceiver has a novel construction which makes it both a highly reliable transceiver and a novel solution for sending high volumes of data over long distances.

Available now from Low Power Radio Solutions, the RDT868 transceiver has a novel construction which makes it both a highly reliable transceiver and an innovative solution for sending high volumes of data over long distances.

Operating at 868.3MHz in the newly harmonised pan-European band, the transceiver combines a high-stability 25mW transmit section with a highly selective dual-SAW-filter receiver.

This is combined with a fast (1ms) turnaround between transmit and receive sections to provide a reliable 50Kbit/s data rate at typical ranges up to 700m line-of-sight or 100m in buildings.

This makes it ideal for telemetry of critical data, where only a transceiver will confirm accurate reception.

While the RDT868 has an industry-standard transceiver pin-out, where it differs from standard devices is in its construction.

The transmit and receive halves can literally be pulled apart to provide a separate transmitter and receiver.

This means that a pair of transceivers can be turned into a perfectly matched transmitter/repeater/receiver combination, effectively doubling the range.

In theory, there is no limit to the number of repeaters which could be used.

With a dual-inline construction occupying only 23 x 33mm of PCB space, the RDT868 is both compact and frugal, drawing 135mA in transmit mode and 70mA in receive mode, both from a single 5V supply.

It is compliant with ETS300-220 and all current EMC specifications.

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