Although ham radio offers a wide array of bands to transmit on, not to mention plenty of modes to communicate with, not everyone wants or needs to use all of this capability. For those needing simple ...

The circuit was designed to create an automatic repeater that would retransmit a received signal over the amateur radio frequency band. Repeater – a device that regenerates information at a higher ...

A ZiLOG microcomputer comprises the Ham Radio Repeater Locator which has flash memory used to store the frequencies and locations of several thousand repeaters. The distance to the nearest 8 repeaters ...

[Mark J Hughes] volunteers as a part of a local community fire watch which coordinates by radio. The La Habra Heights region of Los Angeles is an area of peaks and valleys, which makes direct radio ...