In telecommunications and networking, a type of data communications allowing the transmission of several channels simultaneously through the same cable, usually by means of multiplexing. In this way, each transmission has its own unique frequency. Two-way transmission is also possible with broadband communications, accomplished by dividing a single channel into a forward and reverse channel. The frequency of broadband networks is measured in megahertz. Analog data channels can also be combined with digital data channels. Cable television uses a broadband network; although it only allows one-way communication at the moment, many experiments and tests are being conducted to allow interactive television, or two-way cable television, which industry experts insist is desirable.