Collaborate Disseminate
[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 …read more Continue reading 2022 Hackaday Prize: Boondock Echo Connects Your Radios with the Cloud
An amateur radio repeater used to be a complex assemblage of equipment that would easily fill a 19″ rack. There would be a receiver and a separate transmitter, usually repurposed from commercial units, a home-made logic unit with a microprocessor to keep an eye on everything, and a hefty set of filters to stop the transmitter output swamping the receiver. Then there would have been an array of power supply units to provide continued working during power outages, probably with an associated bank of lead-acid cells.
More recent repeaters have been commercial repeater units. The big radio manufacturers have spotted …read more
Continue reading An Amateur Radio Repeater Using An RTL-SDR And A Raspberry Pi