This radio is forked from IU4ALH with modifications on hardware and software. The folks who created the user interface had done a great job, so the interface is preserved.
To improve quality and useablity of the radio, better speaker is used, potentiometer volume control with on/off switch is added, mechanical relay insted of solid state relay is used, power supply and battery charging section are of different design as well as RF input section for improving sensitivity and reducing RF noise.
This radio works well with this bandpass and pre-amp module, which connects to MLA-30+ loop antenna. Biasing Tee circuit is built into the module, so the MLA-30+ loop antenna connects directly to this module.