LA3ZA Radio and Electronics

Weekly progress bar with Monday as day 1 in week 9 and yearly progress bar as of day 56 in the year. Among the 50 different faces (or screen...

I got an unassembled QMX+ for Christmas this year, and here are pictures of it coming together. First the winding of toroids for the low-pas...

Propagation of wave energy to distance d, 2d, 3d  showing how the size of the surface that the energy spreads over increases in proportion t...

Envelope Elimination and Restoration, from Kahn 1952  There is a method for SSB generation which is now becoming popular with digital signal...

A few new screens: NextEvents() - New screen showing Next Equinox/Solstice, Easter, Lunar/Solar Eclipses in sorted order, i.e. sorted after ...

Front panel design by W4OA.  3D print design files on github. The new discussion group is https://groups.io/g/Multi-Face-GPS-Clock/messages ...

I just applied for additional credits for my DXCC status with Logbook of the World (LOTW). However some countries that I applied for, and wh...

1000 spots over the last 2-3 days of reception. Image from WSPR Rocks . This month a new receiver station in the  International WSPR Beacon ...