I was pretty busy since August 2024 with a lot of other tasks, mostly job-related and did not have too much time for DIY and tinkering. And this included my SA818 project.
AT1846S QFN 32 — Did I solder it correctly ?
RDA1846, the transceiver inside Baofeng UV-5R, Yaesu FT-4XR, SA818 and other radios is no longer manufactured. There are equivalent chips that can be used.