The RTT Team

Geoff VarrallGeoff Varrall joined RTT in 1985 as an executive director and shareholder to develop RTT's international business as a provider of technology and business services to the wireless industry.

He co-developed RTT's original series of design and facilitation workshops including 'RF Technology', 'Data Over Radio', 'Introduction to Mobile Radio', and 'Private Mobile Radio Systems and developed 'The Oxford programme', a five day strategic technology and market programme presented annually with the Shosteck Group. Over the past twenty years, several thousand senior level delegates have attended these programmes.

A co-author of the Mobile Radio Servicing Handbook (Heinemann Butterworth, UK), Data Over Radio, (Quantum Publishing, Mendocino, USA and 3G Handset and Network Design (John Wiley, New York).

Geoff  has just completed his fourth book, Making Telecoms Work – from technical innovation to commercial success (John Wiley) to be published in early 2012. He also writes regularly for a number of European trade journals and chairs a broad cross section of industry conference and trade events.

As a Director of Cambridge Wireless, Geoff is actively involved in a number of wireless heritage initiatives that aim to capture and record past technology and engineering experience.

Roger BelcherRoger Belcher has a background of over 30 years in the RF communications industry, including an apprenticeship at Marconi, design and development of antennae and radar processing equipment for Plessey Radar (1967-72), technical marketing for Texas Instruments (1972-77), antennae and modem design for satellite communications for Racal (1977-80) and design of RF test equipment and associated hardware/software development for Rohde and Schwarz (1980-84). He has been Technical Director of RTT since 1985.

A co-author of the Mobile Radio Servicing Handbook (Heinemann Butterworth, UK), Data Over Radio (Quantum Publishing, Mendocino, USA), and 3G Handset and Network Design (John Wiley, New York), Roger also writes regularly for a number of European trade and scientific journals.

Roger's most recent project has been to develop a series of LTE Design programmes targeted at the international system silicon, manufacturing and network operators community.

In addition to public programmes, Rogerr also regularly presents In-house programmes to US, Asia and/or European companies involved in developing or implementing next generation wireless products and protocols.