ABack to top First generation mobile telephony systems using analogue signals, but with the digitisation of the control link between the mobile phone and the cell (transmission) sites.
Extension of 2G systems through use of 2.5G protocols providing additional features such as GPRS packet-switched connections and enhanced data rates.
Today, all peoplemeter panels collecting audience data for TV advertising and programme purposes employ active measurement.
The Active/Passive Metering system actively reads video and audio codes embedded in the programme and is capable of producing audio signatures as a secondary identification method or as a back up.
The 4G vision is a comprehensive and integrated IP world, in which users can receive voice, data and streamed multimedia Anytime, anywhere at very high speeds. Percentage of homes out of the approached sample that is successfully recruited, installed and participates in the peoplemeter panel.An organisation representing the interests of advertising agencies in the US. In the case of addresses taken from an establishment or other survey, the acceptance/installation rate is calculated by multiplying the acceptance/installation rate from the approached sample (or "recruitment pool") by the response rate to the survey from which the addresses were taken.