Question: which frequency bands are unlicensed?
Answer: VHF: Band: 173.7 - 175.1 MHz. Available frequencies: 173.800, 174.000, 174.200, 174.400, 174.600, 174.800, 175.000 MHz. ... 
UHF: Band: 863.0 - 865.0 MHz. Available frequencies: From 863.100 MHz to 864.900 MHz. No. ... 
WiFi: Band: 2400 - 2483.5MHz. No.