DTT signal strength variability measurements

The aim of the study was to gain a better understanding of radio signal variability in different clutter types in order to aid the modelling of potential coexistence issues with DTT using the UK DTT planning model.   Using our survey vehicle extensive measurements at different antenna heights and locations were carried out to gain detailed understanding[…]

Development of wide range propagation model

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.[…]

Point to area propagation above 3 GHz

This study was undertaken to develop ITU-R P.452 for use in point-area modelling above 3 GHz has been described in other requirements for this Label. This work included a fairly extensive measurement campaign also involving the Rutherford Appleton Laboratory and Durham University. The purpose of the measurement campaign was twofold; to give a basis for model development and provide[…]