SDR receiver RX-888 MKII

RX888 mkII is the new generation of RX888 with the following improvements and enhancements: 1.Add a tunable Attention in the HF path, which can tune from 0 to -31.5dB. 2.Change the fixed LNA of RX888 to a VGA, which gives the -10dB to +33dB range. VGA applies to both HF and VHF. 3.Use the newer…

The Uncertain Future of Ham Radio

Software-defined radio and cheap hardware are shaking up a hobby long associated with engineering By Julianne Pepitone Will the amateur airwaves fall silent? Since the dawn of radio, amateur operators—hams—have transmitted on tenaciously guarded slices of spectrum. Electronic engineering has benefited tremendously from their activity, from the level of the individual engineer to the entire field.…

The SDR.hu project has been finished

“I’d like to say a big thanks to everyone who joined my journey with this project! I hope you had a good time listening on the site, and learnt some things about SDR. The purpose of this site was to provide a technological demonstration for amateur radio operators about Software Defined Radio, and I hope…