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Hanson Quarry gets audio and safety upgrade from Hytera

The clay quarry at Kirton in Newark, Nottinghamshire has been in operation since 1955 supplying a key raw material for brick production. Hanson Building Products took over the 2 sq km site in 1989 and now extracts and transports over 170,000 tonnes of clay a year. Quarries are harsh and potentially dangerous places to work in, so a robust and reliable radio system is essential to ensure there is clear communication across the whole of the site covering everyone working there.

Our solution

Derbyshire-based Zycomm Communications was asked to come up with a solution, which would provide robust, rugged radios able to withstand the harsh quarry environment. The radios had to be easy to use and deliver clear, instant communication across the whole site, including within the site buildings. The radios also had to have a number of health and safety features built in and the overall system had to be future proof to enable expansion and upgrades at later times.

Zycomm recommended the rugged Hytera PD705 digital mobile radio (DMR), which features exceptional audio quality and noise cancellation features, making it an ideal choice for use in a noisy quarry environment. The handheld radio is IP67 rated meaning it can cope with the dust and water intrusion within the quarry. The radio comes with a built-in lone worker alarm, which uses a timer in the radio to measure inactivity. If the timer expires, a warning is issued, and if there is no response to that, the alarm is triggered.

It also features a large emergency button, which identifies the ID of the person issuing the alarm. A priority interrupt feature enables a priority transmission to interrupt other calls, allowing critical messages to get through quickly. These functions provided the necessary health and safety features requested by Hanson.

Zycomm suggested that the compact Hytera PD505 DMR handheld radio for members of staff working indoors, as it is both small and easy to use. The radio is IP54 rated for dust and water resistance, and also comes with noise cancellation, emergency mode and lone worker features.

Each radio model operated through the small, compact RD625 DMR repeater. The RD625 combines transmitter and receiver components, the voltage supply and an optional duplexer within its chassis. The repeater ensured excellent coverage throughout the quarry site, in critical areas, and back into the offices at the front of the site.

Swapping over from analogue to digital was done with professionalism by Zycomm and with minimal disruption.

- Brian Reid

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