Dear Giovanni,
You have a FMC30RF with high range option. I checked the BOM and the exact LNA part number is SKY6710-396LF. The low range option has a SKY67101-396LF instead. I don't have direct link to the datasheet unfortunately; The FMC30RF was driven by Texas Instruments, they had a RF development board and we have been asked to redesign this board as an FMC board keeping the same components on the board.
The lna_out signal goes on some resistors but they are all caged by the Faraday cage and removing the metal casing is not an option.
Best Regards,
Arnaud