A License Exempt (Part-15) Spectrum Measurement Study was recently carried out for the UK Regulator Ofcom involving 20 sites across England.
The study appears to show comparitively little usage of 2.4 GHz (page 30 of the summary). This is almost certainly down to the locations chosen for monitoring and the short range (< 1000 feet) of license exempt consumer products. Had the monitoring stations been been sited in a typically urban household, built at 20 homes to the acre, I'm sure they'd have picked up plenty of activity.
The results of the study can be seen at
Autonomous Interference Monitoring System- Phase II & Measurement of LE Usage http://www.ofcom.org.uk/research/technology/overview/state_use/aims2/
Report Summary http://www.ofcom.org.uk/research/technology/overview/state_use/aims2/le_summ...
AMSAT-UK Colloquium http://www.uk.amsat.org/Colloquium
73 Trevor M5AKA --------------- Daily Amateur Radio RSS News: http://www.southgatearc.org/ Email your news items to: editor at southgatearc.org
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