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Power-efficient wireless technology from London-based Radiometrix is helping Durham University’s engineering department to promote greener transportation.

The company’s TX3B-869.85-64 and RX3A-869-10 radio modules are being used to monitor the performance of the department’s solar-powered racer.

The Durham University Solar Car (DUSC) has a steel space frame construction with a carbon-fibre body shell.

This makes it very light and ensures that energy is not expended unnecessarily.

The high-efficiency photovoltaic cells that cover its outer surface are able to produce 1.4kW of power, allowing the vehicle to reach a maximum speed of 56mph (90kph).

The Radiometrix products being utilised in the DUSC’s telemetry system allow the transfer of important information to the chase vehicle that follows behind it.

As a result, the team of engineers can gain access to a continuous stream of real-time data on the voltages/currents passing through the car’s circuitry and on how much solar energy is being received.

The Radiometrix TX3B-869.85-64 transmitter located in the DUSC has a compact 32 x 12.5 x 3.8mm form factor.

It can deliver a 7dBm (5mW) radio-frequency output and supports 64kbps data rates.

This is complemented by the RX3A-869-10 receiver, which is placed in the chase vehicle.

When paired with the TX3B, the new RX3G receiver enables a reliable data link to be implemented at a range of up to 300m.

Both the transmitter and the new RX3G receiver comply with the ETSI EN 300 220 and EN 301 489-3 standards.

These modules are suitable for a variety of end applications; these include vehicle data upload/download, data logging, asset tracking/management systems, industrial telemetry/telecommand systems and high-performance security/fire alarms.

Steve Wilson, DUSC project leader, said: ‘There were several criteria that needed to be met with regard to the radio communications system for the DUSC.

‘Clearly, as much of the energy converted by the photovoltaic cells as possible has to be devoted to propulsion and, as a result, low power operation for the radio transmitter was vital.

‘Likewise, in order to ensure that energy was not wasted, the transmitter had to be lightweight and take up minimal space,’ he added.

Radiometrix modules monitor solar-car performance

Power-efficient wireless technology from London-based Radiometrix is helping Durham University’s engineering department to promote greener transportation.

The company’s TX3B-869.85-64 and RX3A-869-10 radio modules are being used to monitor the performance of the department’s solar-powered racer.

The Durham University Solar Car (DUSC) has a steel space frame construction with a carbon-fibre body shell.

This makes it very light and ensures that energy is not expended unnecessarily.

The high-efficiency photovoltaic cells that cover its outer surface are able to produce 1.4kW of power, allowing the vehicle to reach a maximum speed of 56mph (90kph).

The Radiometrix products being utilised in the DUSC’s telemetry system allow the transfer of important information to the chase vehicle that follows behind it.

As a result, the team of engineers can gain access to a continuous stream of real-time data on the voltages/currents passing through the car’s circuitry and on how much solar energy is being received.

The Radiometrix TX3B-869.85-64 transmitter located in the DUSC has a compact 32 x 12.5 x 3.8mm form factor.

It can deliver a 7dBm (5mW) radio-frequency output and supports 64kbps data rates.

This is complemented by the RX3A-869-10 receiver, which is placed in the chase vehicle.

When paired with the TX3B, the new RX3G receiver enables a reliable data link to be implemented at a range of up to 300m.

Both the transmitter and the new RX3G receiver comply with the ETSI EN 300 220 and EN 301 489-3 standards.

These modules are suitable for a variety of end applications; these include vehicle data upload/download, data logging, asset tracking/management systems, industrial telemetry/telecommand systems and high-performance security/fire alarms.

Steve Wilson, DUSC project leader, said: ‘There were several criteria that needed to be met with regard to the radio communications system for the DUSC.

‘Clearly, as much of the energy converted by the photovoltaic cells as possible has to be devoted to propulsion and, as a result, low power operation for the radio transmitter was vital.

‘Likewise, in order to ensure that energy was not wasted, the transmitter had to be lightweight and take up minimal space,’ he added.

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