Thomas Kunz
Systems and Computer Engineering
3
Unlicensed Bands
nIndustrial, Scientific, and Medical (ISM):
–915 MHz band (902 - 928 MHz, 26 MHz bandwidth)
nonly available in North America
nhighly crowded, expected to become even more crowded
nmany existing users are non-spread-spectrum applications
–2.4 GHz band (2.4 - 2.4835 GHz, 83.5 MHz bandwidth)
navailable worldwide
nlightly loaded, but interference from microwave ovens
–5.8 GHz band (5.725 - 5.85 GHz, 125 MHz bandwidth)
nonly available in North America
nlightly loaded, radar interference