The study examined the potential for a 10 MHz FDD LTE network roll-out in major population centres in South Africa in the Region 1 digital dividend band (i.e. 790 – 862 MHz). It reviewed analogue TV use in South Africa, established representative modelling parameters, developed appropriate sharing criteria and interference analysis methods and examined the[…]
This study involved DAB propagation measurements to inform DAB coverage planning and related to plans for the expansion of the UK DAB network in the context of the possible switch-off of some or all FM radio services. The work consisted of a review of DAB planning criteria and as part of this work a drive[…]
Plum developed an explanatory note on the cost of capital and its application to broadcast network access. The note also addresses the argument that the WACC should be reviewed due to changed circumstances (in particular, the financial crisis’s impact on interest rates).
The interference analysis between base stations (BSs) of ECN (electronic communication networks) was undertaken based on the assessment of a single interference path into the victim cable TV network elements. In the analysis, the distance between the interfering BS and the victim was increased in regular steps. At each distance, the implications of mean path loss[…]
The purpose of the study was to develop a briefing note that covered the issues concerning the amount of radio spectrum required by terrestrial television services once they have migrated from analogue to digital transmission. The note explores the different digital TV technologies used around the world (PAL, ISDB, ATSC). It also considers the other technical issues,[…]
This study, for Ofcom, assessed the future of advertising technology over the next 10 years. The advertising market is undergoing rapid technology-driven change, impacting on the communications sectors that Ofcom regulates. This change has been led by digitisation of content and innovation in advertising technologies and applications on the internet (behavioural targeting, personalisation, new ad[…]
The study sought to quantify the relative and absolute spectrum efficiency of digital and analogue wireless microphones. It was required in the context of the general background of reduced availability of UHF spectrum for PMSE use, and the specific requirement to ensure adequate spectrum resources for the London Olympics in 2012. The study considered examples[…]
Plum supported the ECO impact assessment workshop with this case study impact assessment of receiver parameters for devices operating in the 863 – 870 MHz band. Plum also prepared a framework paper and ran a workshop on impact assessment for ECO members.
The study involved an investigation into the potential for interference into mobile networks deployed in neighbouring countries, using IMT technologies, if Italy continued to use high power TV transmitters in the 790 – 862 MHz band for Digital Terrestrial TV. The interference analysis was undertaken using the in-house spectrum planning tool and parameters from the[…]
As part of the digital switchover process in the UK this study was undertaken to assess how closely actual antennas corresponded to those used by planners to assess coverage for digital TV. The primary technical objective was to analyse the new survey data that had been collected to determine whether there has been any significant change in[…]