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The HF Spectral Occupancy Experiment is a programme of research undertaken by the Digital Communications Department at University of Manchester Institute of Science and Technology to measure and analyse the usage of the high frequency (HF) portion of the electromagnetic spectrum (3MHz to 30 MHz) over Northern Europe.
As part of the research programme, a statistical model, the Laycock-Gott occupancy model, based upon the Logit transform, has been formulated to model the variation of usage of the HF spectrum in terms of frequency, sunspot number, week-of-year, time-of-day, latitude, longitude and user.
