Description: Linrad is an advanced software-defined radio application optimized for weak-signal reception. It can decode a variety of digital modes like JT65 and FT8 as well as analog signals like SSB and CW.
Type: software
Pricing: Open Source
Description: QUCS (Quite Universal Circuit Simulator) is an open-source electronics circuit simulator software. It allows you to set up electronic circuits and simulate them. Features include DC, AC, S-parameter, harmonic balance analysis, etc. It has a GUI for schematic capture and simulation control.
Type: software
Pricing: Free