Beside the MB1791 BOM doubt, there is PCB Layer Stack doubt too.About MB1791 PCB & Gerber Files, there is no Signal copper layout in the Middle Layer-1 (G1 Layer) & Middle Layer-2 (G2 Layer). Why the setting applied 4-layers PCB instead of 2-layers ...

Hi Sir. Madam,​For MB1791 Development Broad, there are 3 Type of ​design:MB1791-HighBand_HighPowerMB1791-HighBand_LowPowerMB1791-LowBand_HighPowerBut I doubt the BOM given, the part Description, Value and Manufacture Part Number are not tally for the...