Field notes
Amateur radio, weather satellites, antennas made from things lying around, and the occasional detour into small electronics.
Decoding Meteor-M LRPT with a fifteen-dollar dongleThe NOAA birds are gone, but the Russian Meteor satellites still send down colour images every day. Here is the chain that finally worked for me.
A QFH antenna from copper pipe and patienceQuadrifilar helix dimensions, the bending jig, and why my first two attempts were deaf at low elevations.
Chasing noise on a rooftop SDR setupSwitching power supplies, a ferrite collection, and a spreadsheet of noise floors before and after.