What are the characteristic of 2.4Ghz? (Choose 3)
A. total 1 to 11 channels are available
B. total 1 to 14 channels are available
C. fcc allowed 1 to 11 channels
D. fcc allowed 1 to 14 channels
E. max 100mw power allowed on CCK
F. max 100mw power allowed on OFDM
Correction to the above. The maximum CCK power levels differ between FCC and ETSI. Looks like FCC is 20dBm max power for CCK and OFDM, whereas ETSI is 18dBm for CCK (and 20dBm for OFDM). So, looks like it would depend on the assumption of FCC or ETSI as the regulating body.
Actually, correct answer choices are ABF as FCC max power for CCK is 18dBm and for OFDM it is 20dBm – https://wlan1nde.wordpress.com/2014/11/26/wlan-maximum-transmission-power-etsi/
ABC A- total 1 to 11 channels are available USE B. total 1 to 14 channels are available – europe C. fcc allowed 1 to 11 channels – use