is not publicly released by the manufacturer, the radio's design is well-documented by the hobbyist community due to its use of standard integrated circuits. Core Circuit Architecture XHDATA D-808
, which is managed by a dedicated charging circuit via a USB-C port. XHDATA D-808 Internal Photos | The SWLing Post 31 May 2018 — xhdata d-808 schematic
Filters and waveshaping: