A useful list of definitions, relating to the mobiles, masts and health section. 

3G The third generation of mobile technology.
Antenna Part of a base station that sends and receives electromagnetic fields.
Base station The equipment that sends and receives mobile calls, texts, pictures and web pages etc. Includes antenna(s), a supporting structure such as a mast and a cabinet of equipment to power the base station (see antenna, transmitter, and receiver).
Case control study An epidemiological study used to identify factors that may contribute to a medical condition by comparing the exposure to those factors by people who have the condition to the exposure of similar people who do not have the condition.
Cell An area covered by a base station.
CENELEC A European standards body that receives mandates from the European Commission to prepare standards for use in the EU.
Cohort study An epidemiological study in which a large number of individuals in a population are observed over a period of time. Subgroups of individuals, who are exposed to something, are compared to other subgroups with a different level of exposure to see if there is a difference in the health outcomes of interest.
COSMOS An international cohort study on mobile device use and possible long term effects on health.
Coverage The availability of mobile services in a given area.
Dosimetry The way levels of absorbed RF fields are calculated or measured.
Earpiece Mobile device accessory that allows calls to be made without holding the device to the head.
Electromagnetic compatibility
The ability of an electrical/electronic device to continue functioning in the presence of external electric / magnetic / electromagnetic field.
Electromagnetic energy
See electromagnetic field.
Electromagnetic field   (EMF) Energy, moving as waves at the speed of light consisting of a combination of electrical and magnetic fields with levels that each change over time dependent on the frequency.
Electromagnetic radiation
See electromagnetic field.
Electromagnetic spectrum The range of wavelengths for electromagnetic waves—from the very long to the very short. The lower part of the spectrum with long wavelengths is non-ionising and includes power line frequencies, radio frequencies, infrared and visible light. The upper part of the spectrum with extremely short wavelengths is ionising and includes x-rays and gamma rays.
Electromagnetic waves See electromagnetic field.
Emission The process by which energy is transmitted from a source, typically an antenna.
Emissions The energy transmitted from the source as electromagnetic waves.
Epidemiology The study of patterns of human health and illness and associated factors at the population level.
Expert review A review of existing scientific research by a panel of experts (see reference review).
Exposure The term used to describe the total amount of energy from an electromagnetic field that may be absorbed by the human body - see Specific Absorption Rate.
Handset Mobile device.
Field Strength The intensity of an electromagnetic field.
Frequency The number of waves of equal size that pass through space in a given time, e.g. per second. Measured in Hertz (Hz) and used to classify electromagnetic fields.
GSM The most popular second generation (2G) standard for mobile telephony systems in the world.
GSM Association An association of mobile operators and related companies.
International Agency for Research on Cancer
Part of the World Health Organization coordinating and conducting research on the causes of human cancer, the mechanisms of carcinogenesis, and to develop scientific strategies for cancer prevention and control.
International Commission for Non-Ionizing Radiation Protection
A body of independent scientific experts consisting of a main Commission and four Scientific Standing Committees considering the evidence relating to adverse effects on human health of exposure to non-ionising radiation. Provides the guidelines that many national regulatory bodies use to govern public and occupational exposure to radio frequency fields from mobile devices and base stations.
International Electrotechnical Commission
An international body that develops standards for electrical and electronic equipment.
Institute of Electrical and Electronics Engineers
An international non profit, professional organisation for the advancement of technology related to electricity that develops standards for electrical and electronic equipment.
INTERPHONE A multinational study into mobile devices and cancer, with research teams in 13 countries and coordinated by IARC.
Ionising Radiation Extremely short wavelength electromagnetic radiation that carries enough energy per quantum to ionise atoms or molecules — that is, to completely remove an electron from an atom or molecule.
International Telecommunications Union
An international body that develops standards for electrical and electronic equipment.
Local operating company Company within the Vodafone Group operating in a specific country, e.g. Vodafone Germany.
Loudspeaker Component that converts electrical signals into sound.
Long Term Evolution
A fourth generation mobile communications network technology standard.
Mast Structure commonly used in a base station to support the antenna(s).
Mobile Manufacturers Forum
An international non-profit organization founded in 1998 by a number of leading manufacturers of mobile radio equipment, to provide funds to key research projects concerning health and mobile devices, as well as to cooperate on standards and regulatory issues.
Network rollout/deployment The expansion of a mobile device network through an increase in the number of base stations.
Non-ionising radiation
Any type of electromagnetic radiation that does not carry enough energy per quantum to ionise atoms or molecules — that is, to completely remove an electron from an atom or molecule.
Power density The measure of the power of an electromagnetic wave crossing an area at a right angle to the direction of wave propagation. Measured in watts per square metre.
Radio frequency field
(RF field)
Type of electromagnetic field used for wireless communication.
Radio Frequency Radiation
See RF field.
Receiver The part of a communications or broadcast system that extracts data/sound signals from low level radio frequency signals.
Reference Reviews Published reviews of the science which Vodafone uses to form an understanding of the balance of science evidence relating to health effects from exposure to RF fields. Such reviews: have a scope relevant to mobile telecommunications and health; are conducted under the auspices of a national or international health agency by a panel of experts; consider the range of evidence available from cited peer-reviewed sources covering the scope of the review and apply review and risk assessment criteria consistent with the WHO approach post-date the ICNIRP 1998 guidelines.
Research review The process of reading, analyzing, evaluating, and summarising scholarly materials about a specific topic.
Research study Original piece of work that generates scientific results.
Specific Absorption Rate
The measure of the amount of energy from an RF field absorbed by the human body. Measured in watts per kilogram.
Signal Communication between a base station and a mobile device via a radio frequency field.
Speaker See loudspeaker.
Speakerphone Common term for the function on a mobile device that amplifies voice calls through a loudspeaker, allowing the user to move the mobile device away from their head and body.
Supporting structure The part of the base station that supports the antenna(s). Usually a mast or part of a building.
Tower See mast.
Transmitter The part of a communications or broadcast system that generates the radio frequency power.
Wavelength The distance between two adjacent points on an electromagnetic wave. A shorter wavelength means a higher frequency.
World Health Organization
The United Nations agency for health. Aims to create the highest possible levels of health for all people.
Wi-Fi A type of wireless network, where no cables are needed to connect a computer or other piece of communication equipment to each other or the internet.
Wireless local area network A group of computers connected using RF fields instead of cables.