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 between 1991 and 2005.

Geoff has been running in depth technology and market workshops for the industry for over 35 years, spanning five generations of mobile cellular technology.

Geoff has written eight books: If you are interested in any of them and the links are not working please email Geoff at geoff@rttonline.com

The Telecoms Coast (Porto Press, UK, 2026)

5G and Satellite RF and Optical Integration (Artech House, 2023)

5G and Spectrum Standards and Scale (Artech House, 2018)

5G Spectrum, and Standards (Artech House, 2016)

Making Telecoms Work – from technical innovation to commercial success (John Wiley, 2012)  

3G Handset and Network Design (John Wiley, New York, 2003)

Data Over Radio (Quantum Publishing, Mendocino, USA, 1992)

Mobile Radio Servicing Handbook (Heinemann Butterworth, UK, 1989)

As a past 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, and is a past patron of the Science Museum.