local modem = peripheral.wrap("top")

while true do
	for i=0,65535,128 do
		print("Hopping on channel range " i .. " to " .. i+127)
		for i=i,i+127 do
			modem.open(i)
		end

		os.startTimer(2.5)
		while true do
			local e,side,recvChan,replyChan,msg,dist = os.pullEvent()
			if e == "timer" then
				break
			elseif e == "modem_message" then
				print("Message on " .. recvChan .. ":" .. replyChan .. ", '"..msg.."'")
			end
		end

		modem.closeAll()
	end
end