The study was intended to inform the requirements of a new DAB network in Hong Kong following a trial at a few sites. Our main role in this project was to comment on the potential to re-use trial equipment in the commercial network based on the planned network design and trial equipment details and also development[…]
McLaren were interested in identifying alternative spectrum options to their current telemetry solution for F1 racing which would support significantly more monitoring etc. of the cars. The study investigated and advised on potential availability of spectrum bands suitable for supporting mobile telemetry operations required at all the Grand Prix racing circuits. A wide range of[…]
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,[…]
The study addressed four key issues in relation to the use of UHF locally unused TV frequencies (commonly referred to as “white spaces”) for wireless home networking, namely: the current status of white space technology, availability of spectrum within the UK for white space wireless home networks, a comparison of the likely coverage in a[…]
The study examined the state of art in wireless power transmission, transfer of electrical power, as seen from the perspective of the protection of radio communications services for Ofcom. It considered the scientific background behind the different proposals, the technological developments, possibilities and limitations, and examined the consumer and economic aspects. Particular attention was given to[…]
Following on from a previous study measuring equipment, that had been used to investigate the technical and consumer impact of time-varying interference to digital TV services, was maintained for a further year in Brighton and Southwold to monitor interfering signals and propagation variability from the continent. In addition a series of associated measurements were made using[…]
The aim of the study, a major two-year project, was to develop a unified propagation model for the prediction of signal levels on terrestrial paths in a frequency range of approximately 30MHz–50GHz, considering both availability and interference, which covers times from 0–100%. The work required a fundamental re-evaluation of the statistical relationship between different propagation mechanisms.[…]
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[…]
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[…]