XHDATA D-808 is a widely discussed portable radio among enthusiasts, primarily known for its high performance-to-price ratio
If you want, I can:
The XHDATA D808 is a second cousin to the Radiwow R-108. The R-108 schematics are easier to find (leaked Chinese factory docs). If you find an ultra-HD scan of the R-108 schematic, it covers 80% of the D808 (audio amp, power supply). The difference is the D808’s additional band switching for Air Band. xhdata d808 schematic extra quality
Typical user reviews from radio forums (e.g., Reddit r/shortwave, RadioReference) often warn that such “schematic” sales are overpriced, inaccurate, or low-resolution images from AliExpress or eBay. XHDATA D-808 is a widely discussed portable radio
Abstract The XHDATA D808 is a widely praised portable shortwave receiver known for its sensitivity and DSP-based architecture. However, the manufacturer does not publish service documentation. This paper synthesizes available teardown data, component identification, and traced partial schematics from online reverse-engineering efforts. It presents a verified block diagram, lists key ICs, and directs researchers to the highest-quality known resources—including 300+ DPI PCB scans and manually traced circuit fragments. Remove the PCB (4 screws)