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Doug Gray, a former chairman of ETSI Project TETRA and author of the book ‘TETRA: the Advocate’s Handbook’ (2003), died on August 25, 2011. During 23 years with Motorola he held a series of senior posts, from system engineering planning manager to director of TETRA marketing. Latterly he was an ardent campaigner for more to be done in relation to prostate cancer screening – as can be seen at the informative website he has left, http://loveyourprostate.co.uk (中国集群通信网 | 责任编辑：陈晓亮) |
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