The US government lays claim to a large chunk of spectrum for military use, communications, and transportation. FM radio operates between 88 and 108.0 MHz, and AM radio operates between 540 and ...

Using a scatter chart automatically plots the ranges against their frequencies, but using a column graph creates a familiar histogram type chart. Open Microsoft Excel and list your data in column A.

The JANUS protocol establishes a single frequency—11.5 kilohertz—that is reserved for initial communication between two systems, as well as frequencies for announcing a system's presence to ...