Therefore,
an efficient 1 MHz antenna will be 75-150 meter in length! There is another reason why we do not
transmit low frequencies: A 2 Mbps signal contains all frequencies from nearly DC to 1 MHz, and this is
virtually a 200:1 bandwidth (5 KHz to 1 MHz), and it is very hard, if not impossible, to make an antenna
at any frequency with such a wide bandwidth.