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Table 1 5 GHz and 2.4 GHz spectrum and equivalent isotropically radiated power (EIRP) limitations in the UK for outdoor use [source: Ofcom]

From: HopScotch-a low-power renewable energy base station network for rural broadband access

Band 5 GHz Band B 5 GHz Band C 2.4 GHz
Frequency Range 5470-5725 MHz 5725-5850 MHz 2400-2483.5 MHz
Bandwidth 255 MHz 125 MHz 83.5 MHz
20 MHz Channels 11 5 4
40 MHz Channels 6 2 2
License License exempt Lightly licensed License exempt
Maximum EIRP 1 W 4 W 100 mW