2024-07-08 : Added HamRadio 2024 presentation slides
2020-11-03 : Added RADIOlab transceivers : Added presentations from SDRA 2020 and Amateurfunktagung München
2019-06-25 : Extended the Arduino software section by the Charly 25AB Tester V1.2 sketch
2019-06-16 : Updated the Red Pitaya software section
2019-02-13 : Add link to our shop
2019-01-04 : Add Project Updates page (in German)
2018-05-15 : C25 hardware controls now available for pihpsdr 1.2
2018-04-03 : Added page about Munich Amateur Radio Conference 2018 (in German)
2018-03-15 : Added subsection about Charly 25 specific Red Pitaya software
2017-11-17 : Added note about pihpsdr 1.2 and STEMlab discovery feature
2017-11-15 : Extended Rx filter page with explanation of its benefits
2017-10-19 : Added web-based calculator for Rx filters : Added short entry for QUISK
2017-10-16 : Added HamRadio presentation slides : Added slides for DL1FY self-contained transceiver : Added description about Arduino software
2017-10-15 : Added content to hardware section
2017-10-08 : Added content for pihpsdr entry
2017-10-07 : Added links for PowerSDR
A detailed list of changes can be found in the commit list on GitHub, although this can be rather cluttered with technical changes and typo fixes.