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[…]
The study examined options for the re-planning of the proposed Greek DTT network to allow the release of UHF spectrum above channel 60. It specifically considered the impact on the plan for the migration from analogue to digital of releasing the spectrum and the ability to support the planned TV stations and associated regional and national[…]
The study analysed the possibility of repairing holes caused by base station transmitters in digital TV coverage areas by deploying repeaters. The approach was based on co-locating a small TV ‘booster’ transmitter at any interfering base station. The aim was to increase the available TV signal in the area to an extent sufficient to protect[…]
The Sekreteriat, charged with informing the Danish public about the Digital TV Switchover process (DSO), wished to understand the technical issues relating to off-air reception by the public. The study provided a report summarising general DTT issues, such as the impact of household aerial condition, the interpretation of coverage maps and man-made noise. In addition,[…]
Plum was commissioned to produce a report exploring different mechanisms for delivering public service content (PSC). The report assessed the economic costs of the various mechanisms and their robustness over the period to 2014 (and beyond). The mechanisms considered comprised different organisational forms (private vs. state owned, for profit vs. not for profit) and different[…]
Plum provided critical review of a paper by Spectrum Strategy for Ofcom on the Economics of Audiovisual and Interactive Services. Plum’s report was submitted to the Competition Commission investigation of the merger between Arqiva and National Grid Wireless.