In July, 1969, a ham radio operator named Larry Baysinger, from Louisville, KY, used a 20-year old radio from an army tank and a homemade folded dipole antenna array to listen to the Apollo 11 astronauts on the moon. This page is an archive with the original newspaper piece, photos, PDFs of a couple of […]
Fred points out this schematic for a rather interesting radiotelephone transmitter instantaneously powered by the operator’s voice – One of the neatest minimalist amateur radio transmitter circuits around – this one is voice powered – it provides DSB, (double side band)modulation and power from an ordinary 8-ohm speaker – if are in doubt that the […]
Got an old radio from the ’20s, and want to bring it back to life? Well, the quickest way is probably be to remove all those dusty components and use the cabinet to hide a new stereo. That’s not what radio hacker Greg Charvat had in mind for his, though.
Carry a complete radio shack on your back with this tutorial on how to get hammy on a hike.
Hayford Bempong, David Celestin and Michael Amankwanor from Accra Polytechnic set up a local Maker Faire Africa radio station. The group announced upcoming activities, broadcasting at 101.7 FM, and could be heard up to a couple thousand meters away using gear they designed and fabricated from scratch.
How space suits destined to be trashed in space are turned into homes for amateur satellites.
My favorite ham activity is making contacts via satellites. Not only is there the romantic notion of sending messages into outer space, but you have to trace the orbit of the satellite with your antenna while tuning the radio, to compensate for the Doppler effect. The satellites AO-51, SO-50, and AO-27 orbit the Earth acting […]
