Thank you to BG7BAG for writing in and sharing a free user guide for SDRconnect, SDRplay's multi-platform software for their RSP series of SDRs, which we've covered several times before. SDRplay only provides a "Quick Start" guide and a few application notes for SDRconnect, so BG7BAG wrote a full manual from scratch, based on daily use with an RSPdx-R2.

The guide is written side by side in English and Chinese, with a shared glossary of SDRconnect's interface terms, so it may be most useful to Chinese-speaking SDRplay users, for whom there is no official manual. It is based on SDRconnect V1.0.10 and includes a quick start section, a 22-chapter manual covering topics like remote operation, troubleshooting and PPM calibration, and an advanced guide on HDR mode, notch filtering, IQ recording and scheduling. 

BG7BAG also shared his HAM Radio Atlas, a free map of over 12,000 amateur radio repeaters on the 2m, 1.25m and 70cm bands, searchable by location, callsign and band. Repeater data currently covers the USA (26 states), Australia, China, Austria and New Zealand, with a province-by-province list for mainland China.

AI Disclaimer: We note that this guide appears to have been written with the help of AI.