High power radio transceiver offers long range and high reliability

High power radio transceiver offers long range and high reliability

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By eeNews Europe

The SFX2 shares the footprint and pinout of the popular TR2M series of transceivers, while offering improved switching times together with half watt of RF power output. The standard module operates on the 500-mW 458.5 to 459.5MHz license-free industrial/ commercial telemetry band in the UK and Ireland, but many other frequency options are available to order.

This module features a RX-to-TX switching time of 5ms, has a receive sensitivity of better than -118 dBm and complies with the ETSI Category 1 (high reliability) receiver performance specifications. The feature rich interface offers RSSI and both logic level and audio baseband inputs and outputs, including a squelch/mute for audio link applications.

The compact SFX2 (59 x 36 x 15 mm), is available in versions operating on either a regulated +5 V or a 6-12 V unregulated supply. It is fully re-programmable via an RS232 compatible serial input, with up to 256 channels (of which 8 can be selected by a 3 bit parallel interface). In operation the module draws 35 mA in receive and under 400 mA in transmit.

The standard 25 kHz channel version is available in two bandwidth / data rate versions: the standard 5 kbps type, and a wider bandwidth SFX2-458-G variant, to be used with an external 9600 baud GMSK (or 4FSK) modem. A 12.5 kHz channel version can be supplied.

The SFX2 is ideally suited to industrial applications such as machine control, robotic/ mechatronic telecommand tasks, tracking, and fast, long range data modem applications. It conforms to ETSI EN 300 220-2 Category 1 (radio) and EN 301 489-3 (EMC) standards.

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