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module("luci.tools.ieee80211", package.seeall)
function frequency_to_channel(freq)
if (freq == 2484) then
return 14;
elseif (freq < 2484) then
return (freq - 2407) / 5;
elseif (freq >= 4910 and freq <= 4980) then
return (freq - 4000) / 5;
elseif (freq <= 45000) then
return (freq - 5000) / 5;
elseif (freq >= 58320 and freq <= 64800) then
return (freq - 56160) / 2160;
else
return 0;
end
end
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